CN108913762A

CN108913762A - The application of kit and CST1 gene as biomarker for detecting chronic nasosinusitis with nasal polyp hypotype

Info

Publication number: CN108913762A
Application number: CN201810717432.2A
Authority: CN
Inventors: 张罗; 王成硕; 闫冰
Original assignee: Beijing Institute Of Otorhinolaryngology; Beijing Tongren Hospital
Current assignee: Beijing Institute Of Otorhinolaryngology; Beijing Tongren Hospital
Priority date: 2018-07-03
Filing date: 2018-07-03
Publication date: 2018-11-30

Abstract

The present invention proposes a kind of application of kit and CST1 gene as biomarker for detecting chronic nasosinusitis with nasal polyp hypotype.Wherein the kit includes the specific primer of CST1 gene.The CST1 gene can prepare the product for detecting chronic nasosinusitis with nasal polyp hypotype as biomarker.Kit of the present invention, by proteomics and the screening of transcription group method using CST1 gene as biomarker, detection chronic nasosinusitis is carried out with the method for nasal polyp hypotype using kit to realize, quickly nasal polyp hypotype can be identified, and it is shorter compared to more traditional pathological examination method used time, this kit can carry out high-volume, quickly detection to sample simultaneously, save human cost and medical treatment cost.It more importantly can comprehensive response organization Pathologic Characteristics.

Description

For detecting kit and CST1 gene conduct of the chronic nasosinusitis with nasal polyp hypotype The application of biomarker

Technical field

The invention belongs to biomedicine technical fields, more particularly to one kind is for detecting chronic nasosinusitis with nasal polyp hypotype The application as biomarker of kit and CST1 gene.

Background technique

Chronic nasosinusitis is with nasal polyp (Chronic rhinosinusitis with nasal polyps, CRSwNP) The chronic inflammation of sinus mucosa, the visible nasal cavity of physical examination or middle nasal meatus polyp are formed.CRSwNP common sympton is stifled nose, runny nose or nose Tears refluence, hyposphresia, the bored swollen sense of face or feeling of stress, duration are more than 12 weeks.Illness rate is about 0.5-4%, CRSwNP It is often accompanied by asthma and allergic rhinitis, has been reported that 7% asthmatic patient suffers from CRSwNP, and the CRSwNP of 26-48% is with heavy breathing Asthma.CRSwNP pathogenesis is also uncertain at present, and mucosal epithelial cells destroy, host immune system is unbalance and pathogenic microorganism enters Invade the main reason for may be its morbidity.The main therapeutic modality of CRSwNP is operation and drug therapy.But studies have shown that even if By the drug or operative treatment of specification, chronic nasosinusitis is still up to 56% with the recurrence rate of nasal polyp, and it is raw to seriously affect patient Bioplasm amount, while bringing high medical to pay, but clinical shortage radical treatment method, thus become nasology research field Emphasis.

Degree according to eosinophils can divide CRSwNP for eosinophil type (Eosinophilic CRSwNP, ECRSwNP) and Non eosinophilic granulocyte type (Noneosinophilic CRSwNP, nonECRSwNP), the two is faced Bed performance, medication and prognosis are different, and the clinical symptoms of eosinophil type are heavier, with nose is stifled and hyposphresia based on, it is more It is associated with asthma, Postoperative recurrent rate is higher.Eosinophils degree and relapse are the closest in human nasal polyps tissues, When the cell percentages are more than 27% in tissue, risk of recurrence is more than 90%.Eosinophil type polyp is to sugared cortical hormone The susceptibility of plain class drug is significantly higher than Non eosinophilic granulocyte type.Non eosinophilic granulocyte type clinical symptoms are generally relatively light, and The probability for merging asthma is smaller, and airway inflammation is lighter, and Postoperative recurrent rate is low compared with eosinophil type, to macrolides medicine Object therapeutic response is good.Western countries are mainly shown as TH2 inflammatory reaction based on eosinophil type, and the acidophilus in China Property granulocyte type and Non eosinophilic granulocyte type ratio account for about half, and Non eosinophilic granulocyte type is mainly shown as TH1/TH17 Based on inflammatory reaction.In conclusion eosinophil type and Non eosinophilic granulocyte type are in immunopathogenesis type, clinical condition There are significantly different for shape, drug therapy reaction and prognosis.Different chronic nasosinusitis treat plan with inflammation/pathological of nasal polyp It is slightly different.So the identification to chronic nasosinusitis with the pathological of nasal polyp is particularly important.

The judgement of two kinds of hypotypes is lacked non-invasive mainly according to histopathology specimen staining after bronchia mucosal biopsy at present Biological markers are used for antidiastole.After patient obtains polyp sample under nasal endoscopes, the Pathologic specimens such as progress paraffin is fixed Conventional treatment, then carry out haematoxylin Yihong dyeing, followed by the inflammatory cell of ultramicroscopic observation tissue infiltration (main inflammatory cell includes eosinophil, neutrophil leucocyte, lymphocyte, thick liquid cell) infiltrates number, carries out cell point Type.The shortcomings that bronchia mucosal pathological biopsy, is as follows：1. being invasive inspection：The infection risk for increasing patient is not suitable for being immunized Power lower crowd such as children, the elderly etc.；Nasal bleeding when materials often causes patient frightened and worry.2. being difficult to obtain disease The real-time dynamic-change information of disease：Pathological biopsy cannot be carried out to healing stage mucous membrane after surgery.But clinical data shows chronic nose Sinusitis can be lapsed to the pathological classification of nasal polyp with drug therapy, operative treatment etc., can not with the pathological biopsy result before treatment Represent the feature of whole disease durations.3. time-consuming and increase medical treatment cost, general to pathological examination is obtained from tissue samples are obtained 3-4 working day.Due to can not obtain the same day or next day as a result, the additional transportation expenses of generations such as nonlocal patient sees a doctor, hotel expense, Registration fee increases medical treatment cost.4. the inflammatory cell quantity that different pathologists counts has can there are certain human error Can be different, influence the judgement of polyp parting.5. tissue pathological slice relatively limits to, it can only reflect the sample inflammation shape of slice position State cannot reflect the overall picture of tissue, be likely to result in mistaken diagnosis.6. every piece requires Pathologis artificial counting, it is difficult to Batch operation.

It can be seen that provide one kind can independent of bronchia mucosal pathological biopsy and can quick and precisely mass detection it is slow Property rhinosinusitis with nasal polyps hypotype method become those skilled in the art's technical problem urgently to be resolved.

Summary of the invention

The present invention for the above technical issues, proposes a kind of reagent for detecting chronic nasosinusitis with nasal polyp hypotype The application of box and CST1 gene as biomarker.

In order to achieve the above object, the technical solution adopted by the present invention is：

It is a kind of for detect chronic nasosinusitis with nasal polyp hypotype kit, the kit includes the spy of CST1 gene Specific primer.

Preferably, the upstream primer such as SEQIDNO of the CST1 gene:Shown in 2, the downstream primer of the CST1 gene Such as SEQIDNO:Shown in 3.

Preferably, the kit further comprises the specific primer of reference gene.

Preferably, the reference gene is GAPDH, the upstream primer of the reference gene such as SEQIDNO:Shown in 4, institute State the downstream primer such as SEQIDNO of CST1 gene:Shown in 5.

Preferably, the kit further comprises：It is extracted from human nasal polyps tissues or from schneiderian membrance cast-off cells The reagent of RNA；The reagent for being cDNA by total serum IgE reverse transcription；Using quantitative polyase chain reaction by cDNA CST1 gene and The reagent of reference gene progress real-time fluorescence quantitative PCR reaction.

Preferably, described include by the reagent that total serum IgE reverse transcription is cDNA：It reverse transcription mixed liquor and goes RNA enzyme and goes The water of DNA enzymatic；

It is furthermore preferred that including by the reagent that total serum IgE progress reverse transcription is cDNA：The reverse transcription mixed liquor of 1 μ of μ L~40 L, with And 0 the μ of μ L~160 L the water for going RNA enzyme and going DNA enzymatic.It is further preferred that the reagent for being cDNA by total serum IgE reverse transcription Including：The water for going RNA enzyme and going DNA enzymatic of the reverse transcription mixed liquor of 2 μ L and 0 μ of μ L~8 L.

As preferred：Using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence Quantitative PCR reaction reagent include：PCR premix, distilled water, machine fluorescence compensate and the upstream of corrigent, CST1 gene Primer, the downstream primer of CST1 gene, the downstream primer of the upstream primer of reference gene and reference gene.

It is furthermore preferred that using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence Quantitative PCR reaction reagent include：The PCR premix of 1 μ of μ L~25 L, the distilled water of 0 μ of μ L~50 L, the machine of 0 μ of μ L~2 L Fluorescence compensation and corrigent, the upstream primer of 0.01~100 μM of CST1 gene, the downstream of 0.01~100 μM of CST1 gene Primer, the upstream primer of 0.01~100 μM of reference gene, the downstream primer of 0.01~100 μM of reference gene；It is further excellent Choosing, using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence quantitative PCR reaction Reagent include：The PCR premix of 5 μ L, the distilled water of 0 μ of μ L~10 L, according to total volume water polishing to 10 μ L, 0.2 μ L Machine fluorescence compensation and corrigent, the upstream primer of 1 μM of CST1 gene, the downstream primer of 1 μM of CST1 gene, 1 μM The upstream primer of reference gene, the downstream primer of 1 μM of reference gene.

Preferably, the reagent that RNA is extracted from human nasal polyps tissues can choose following two reagent, the first packet It includes：RNA extract, isopropanol, the ethyl alcohol that concentration is 65%~90%, goes RNA enzyme and removes the water of DNA enzymatic chloroform；Wherein preferably , RNA extract Trizol or RNAiso Blood or the RNAiso Plus or other including 0.1mL~20mL containing phenol, Guanidinium isothiocyanate, 8-hydroxyquinoline, guanidinium isothiocyanate or beta -mercaptoethanol substance, the Trizol or the RNAiso The Blood or RNAiso Plus or described it is other containing phenol, guanidinium isothiocyanate, 8-hydroxyquinoline, guanidinium isothiocyanate or 0.1~0.5 times of chloroform of the volume of the substance of beta -mercaptoethanol, 0.5~3 times of isopropanol of the chloroform volume are described 0.5~5 times of 65% to 90% ethyl alcohol of isopropanol volume and the water for going RNA enzyme and going DNA enzymatic of 0.01mL to 5mL； It is further preferred that following two reagent may be selected for the reagent for extracting RNA from human nasal polyps tissues, the first includes：1mL RNA extract Trizol or RNAiso Blood or RNAiso Plus or other contain phenol, guanidinium isothiocyanate, 8- hydroxyl The substance of quinoline, guanidinium isothiocyanate or beta -mercaptoethanol, the chloroform of 200 μ L, the isopropanol of 200 μ L, 200 μ L volumetric concentrations are 65% to 90% ethyl alcohol and the water for going RNA enzyme and going DNA enzymatic of 0.02mL；

Another includes：It is described from human nasal polyps tissues extract RNA reagent include：Cell pyrolysis liquid, for removing Be adsorbed with the impurity of the purification column of RNA the first buffer, for remove be adsorbed with the purification column of RNA impurity and salinity It two buffers and goes RNA enzyme and removes the water of DNA enzymatic；The tool that RNA is extracted from human nasal polyps tissues includes RNA purification column； It is wherein described to further include DNA enzymatic reaction solution from the reagent for extracting RNA in human nasal polyps tissues or described extracted from human nasal polyps tissues The tool of RNA further includes genomic DNA adsorption column；The DNA enzymatic reaction solution includes DNA enzymatic buffer, recombinant dnase and goes The distilled water of RNA enzyme.

It is furthermore preferred that cell pyrolysis liquid, the 0.1mL for lytic cell and inhibition RNA degradation including 0.1mL~2mL The first buffer of washing of~0.7mL, the second buffer of washing of 0.1mL~0.7mL, 0.01mL~1mL go RNA enzyme And go the DNA enzymatic for removing genomic DNA of the water of DNA enzymatic, the recombinant dnase of the removal genomic DNA of 0~10 μ L, 0~10 μ L The distilled water for going RNA enzyme of buffer, 20~100 μ L, the tool that RNA is extracted from human nasal polyps tissues include RNA purifying Column；Or including 0.1mL~2mL for lytic cell and inhibit the cell pyrolysis liquid of RNA degradation, 0.1mL~0.7mL to wash It washs and is gone RNA enzyme with the first buffer, the second buffer of washing of 0.1mL~0.7mL, 0.01mL~1mL and gone DNA enzymatic Water, the tool that RNA is extracted from human nasal polyps tissues includes genomic DNA adsorption column and RNA purification column.

Specifically, the washing for lytic cell and the cell pyrolysis liquid, 500 μ L that inhibit RNA degradation including 300 μ L is used The removal gene for going RNA enzyme and remove the water of DNA enzymatic, 4 μ L for washing the second buffer, 0.02mL of first buffer, 600 μ L Organize the distilled water for going RNA enzyme of the recombinant dnase of DNA, the DNA enzymatic buffer of 5 μ L 10 × removal genomic DNAs, 41 μ L, institute Stating and extracting the tool of RNA from human nasal polyps tissues includes RNA purification column；Or lytic cell and inhibition are used for including 300 μ L The cell pyrolysis liquid of RNA degradation, the first buffer of washing of 500 μ L, 600 μ L wash the second buffer, 0.02mL It goes RNA enzyme and removes the water of DNA enzymatic, the tool that RNA is extracted from human nasal polyps tissues includes genomic DNA adsorption column and RNA Purification column.

Preferably, the human nasal polyps tissues are the human nasal polyps tissues or the schneiderian membrance that nasal cavity pathological biopsy obtains Cast-off cells are swipe or the viscous nasal polyp cell for taking nasal polyp surface to obtain.

Preferably, the data result of △ Ct (Ct (CST1)-Ct (GAPDH)) analytic approach analysis amplified production is selected, and The value that defines being compared with the △ Ct is 2.993.

A kind of CST1 gene is as biomarker in preparation for detecting chronic nasosinusitis with the product of nasal polyp hypotype In application.

Compared with prior art, the advantages and positive effects of the present invention are：

1, the present invention provides a kind of kit for detecting chronic nasosinusitis with nasal polyp hypotype, passes through proteomics It is applied it in kit using CST1 gene as biomarker with the screening of transcription group method, to realize using examination Agent box carries out detection chronic nasosinusitis with the method for nasal polyp hypotype, and making the kit finally obtained includes the special of CST1 gene Property primer.On the basis of having the specific primer, kit of the invention can quickly identify nasal polyp hypotype, And it is higher compared to more traditional pathological examination method accuracy, this kit can carry out high-volume, quickly inspection to sample simultaneously It surveys, has saved human cost and medical treatment cost.And systematization kit identification accuracy rate is higher, it can comprehensive response organization's disease Feature of science.The influence for solving human error in the prior art avoids histotomy and has reacted tissue local feature and causes to miss The drawbacks of examining.It is most important to clinic diagnosis by the nasal polyp neuraminidase of kit progress fast, accurately and comprehensively, with to the greatest extent Early to be carried out according to the inflammation hypotype of nasal polyp for treatment is changed, effectively guidance is for chronic nasosinusitis with the drug of Nasal Polyps Patients Reaction, the judging prognosis effect of drug therapy are accurately estimated in the determination of therapeutic modality and modus operandi.

2, kit provided by the present invention can be obtained by using swipe or the viscous mode taken from the surface of nasal polyp Nasal polyp cell is detected, so that it is determined that the chronic nasosinusitis of patient avoids with nasal polyp hypotype and causes to create to patient Face improves the safety of patient's inspection, and operation is more convenient, has saved human cost and medical treatment cost.

Detailed description of the invention

Fig. 1 is a part of CST1 gene real-time fluorescence quantitative PCR amplification curve diagram of experimental example of the present invention；

Fig. 2 is one another part CST1 gene real-time fluorescence quantitative PCR amplification curve diagram of experimental example of the present invention；

Fig. 3 is experimental example of the present invention a part of CST1 gene real-time fluorescence quantitative PCR amplification curve diagram again and again；

Fig. 4 is experimental example of the present invention a part of CST1 gene real-time fluorescence quantitative PCR amplification curve diagram again and again；

Fig. 5 is a part of CST1 gene real-time fluorescence quantitative PCR melting curve figure of experimental example of the present invention；

Fig. 6 is one another part CST1 gene real-time fluorescence quantitative PCR melting curve figure of experimental example of the present invention；

Fig. 7 is experimental example of the present invention a part of CST1 gene real-time fluorescence quantitative PCR melting curve figure again and again；

Fig. 8 is experimental example of the present invention a part of CST1 gene real-time fluorescence quantitative PCR melting curve figure again and again；

Fig. 9 is that the optional ROC for carrying out chronic nasosinusitis companion's nasal polyp parting detection of one kind of experimental example one of the present invention is bent Line.

Figure 10 is two part CST1 gene real-time fluorescence quantitative PCR amplification curve diagram of experimental example of the present invention；

Figure 11 is two another part CST1 gene real-time fluorescence quantitative PCR amplification curve diagram of experimental example of the present invention；

Figure 12 is two part CST1 gene real-time fluorescence quantitative PCR melting curve figure of experimental example of the present invention；

Figure 13 is two another part CST1 gene real-time fluorescence quantitative PCR melting curve figure of experimental example of the present invention；

Figure 14 is three CST1 gene real-time fluorescence quantitative PCR amplification curve diagram of experimental example of the present invention；

Figure 15 is three CST1 gene real-time fluorescence quantitative PCR melting curve figure of experimental example of the present invention；

Figure 16 is four CST1 gene real-time fluorescence quantitative PCR amplification curve diagram of experimental example of the present invention；

Figure 17 is four CST1 gene real-time fluorescence quantitative PCR melting curve figure of experimental example of the present invention.

Specific embodiment

The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects It encloses.

The embodiment of the invention provides a kind of for detecting chronic nasosinusitis with the kit of nasal polyp hypotype, the reagent Box includes the specific primer of CST1 gene.

The present invention screens to obtain using CST1 by proteomics and transcription group method through a large amount of creative experiments Gene prepares the kit for detecting chronic nasosinusitis with nasal polyp hypotype, current existing technology as biomarker In corresponding any report is not yet provided.It is wherein known for CST1 gene, gene I/D 1469, DNA sequence dna is such as SEQIDNO:Shown in 1, gene NM is 001898.2.

In an alternative embodiment, the upstream primer such as SEQIDNO of the CST1 gene:Shown in 2, the CST1 gene Downstream primer such as SEQIDNO:Shown in 3.For identified upstream primer and downstream primer in kit of the present invention, for this hair Bright kit is when carrying out nasal polyp neuraminidase, accuracy highest, and more efficient, and making kit is suitable for that progress is large quantities of Amount, quickly detection.

In an alternative embodiment, the kit further comprises reference gene.More preferably, by the internal reference Gene is GAPDH, the upstream primer of the reference gene such as SEQIDNO:Shown in 4, the downstream primer of the CST1 gene is such as SEQIDNO:Shown in 5.Reference gene upstream primer and downstream primer determined by kit of the present invention, for reagent of the invention Box, can be effectively by showing expression of the CST1 gene compared with GAPDH when carrying out nasal polyp neuraminidase, and it is suitable to obtain Δ CT value, to carry out nasal polyp neuraminidase.And accuracy rate with higher.

In an alternative embodiment, the kit further comprises：It falls off carefully from human nasal polyps tissues or from schneiderian membrance The reagent of RNA is extracted in born of the same parents；The reagent for being cDNA by total serum IgE reverse transcription；It will be in cDNA using quantitative polyase chain reaction CST1 gene and reference gene carry out the reagent of real-time fluorescence quantitative PCR reaction.More preferably, described by total serum IgE reverse transcription Include for the reagent of cDNA：It reverse transcription mixed liquor and goes RNA enzyme and removes the water of DNA enzymatic；It will using quantitative polyase chain reaction The reagent that CST1 gene in cDNA and reference gene carry out real-time fluorescence quantitative PCR reaction includes：PCR premix, double steamings Water, machine fluorescence compensation and corrigent, the upstream primer of CST1 gene, the downstream primer of CST1 gene, reference gene upstream The downstream primer of primer and reference gene.

Following two reagent may be selected otherwise for the reagent for extracting RNA from human nasal polyps tissues, the first includes：RNA Extract, isopropanol, the ethyl alcohol that concentration is 65%~90%, goes RNA enzyme and removes the water of DNA enzymatic chloroform；

Another includes：It is described from human nasal polyps tissues extract RNA reagent include：Cell pyrolysis liquid, for removing Be adsorbed with the impurity of the purification column of RNA the first buffer, for remove be adsorbed with the purification column of RNA impurity and salinity It two buffers and goes RNA enzyme and removes the water of DNA enzymatic；The tool that RNA is extracted from human nasal polyps tissues includes RNA purification column； It is wherein described to further include DNA enzymatic reaction solution from the reagent for extracting RNA in human nasal polyps tissues or described extracted from human nasal polyps tissues The tool of RNA further includes genomic DNA adsorption column；The DNA enzymatic reaction solution includes DNA enzymatic buffer, recombinant dnase and goes The distilled water of RNA enzyme.Those skilled in the art can select according to actual preparation demand.

Specifically, the reagent for being cDNA by total serum IgE progress reverse transcription includes：The reverse transcription mixed liquor of 1 μ of μ L~40 L, And 0 the μ of μ L~160 L the water for going RNA enzyme and going DNA enzymatic.It is further preferred that the examination for being cDNA by total serum IgE reverse transcription Agent includes：The water for going RNA enzyme and going DNA enzymatic of the reverse transcription mixed liquor of 2 μ L and 0 μ of μ L~8 L are (according to RNA amount water polishing To 8 μ L).For the numberical range of above-mentioned restriction, reverse transcription step can be realized, and to those skilled in the art can It is enough to be selected according to actual needs.

Specifically, using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence determine Measuring the reagent that PCR reacts includes：The machine of the PCR premix of 1 μ of μ L~25 L, the distilled water of 0 μ of μ L~50 L, 0 μ of μ L~2 L is glimmering Light compensation and corrigent, the downstream of the upstream primer of 0.01~100 μM of CST1 gene, 0.01~100 μM of CST1 gene are drawn Object, the upstream primer of 0.01~100 μM of reference gene, the downstream primer of 0.01~100 μM of reference gene；Further preferably , using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence quantitative PCR reaction Reagent includes：The PCR premix of 5 μ L, 0 μ of μ L~10 L distilled water (according to total volume water polishing to 10 μ L), 0.2 μ L's The compensation of machine fluorescence and corrigent, the upstream primer of 1 μM of CST1 gene, the downstream primer of 1 μM of CST1 gene, 1 μM interior Join the upstream primer of gene, the downstream primer of 1 μM of reference gene.For the numberical range of above-mentioned restriction, it is fixed to can be realized Measure polymerase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence quantitative PCR amplification the step of, and it is right It can be selected according to actual needs for those skilled in the art.

Specifically, following two reagent may be selected for the reagent for extracting RNA from human nasal polyps tissues, the first includes： RNA extract Trizol or RNAiso Blood or RNAiso Plus or other including 0.1mL~20mL contains phenol, different Guanidine thiocyanate, 8-hydroxyquinoline, guanidinium isothiocyanate or beta -mercaptoethanol substance, the Trizol or the RNAiso Blood Or the RNAiso Plus or described is other contains phenol, guanidinium isothiocyanate, 8-hydroxyquinoline, guanidinium isothiocyanate or β-sulfydryl 0.1~0.5 times of chloroform of the volume of the substance of ethyl alcohol, 0.5~3 times of isopropanol of the chloroform volume, the isopropanol 0.5~5 times of 65% to 90% ethyl alcohol of volume and the water for going RNA enzyme and going DNA enzymatic of 0.01mL to 5mL；

Another includes：Including 0.1mL~2mL for lytic cell and inhibit RNA degradation cell pyrolysis liquid, The first buffer of washing of 0.1mL~0.7mL, the second buffer of washing of 0.1mL~0.7mL, 0.01mL~1mL are gone RNA enzyme and the removal genomic DNA for removing the water of DNA enzymatic, the removal recombinant dnase of genomic DNA of 0~10 μ L, 0~10 μ L The distilled water for going RNA enzyme of DNA enzymatic buffer, 20~100 μ L, the tool that RNA is extracted from human nasal polyps tissues includes RNA Purification column；Or cell pyrolysis liquid, the 0.1mL~0.7mL for lytic cell and inhibition RNA degradation including 0.1mL~2mL The first buffer of washing, the second buffer of washing of 0.1mL~0.7mL, 0.01mL~1mL go RNA enzyme and remove DNA The water of enzyme, the tool that RNA is extracted from human nasal polyps tissues includes genomic DNA adsorption column and RNA purification column.

It is further preferred that following two reagent may be selected for the reagent for extracting RNA from human nasal polyps tissues, the first Including：RNA extract Trizol or RNAiso Blood or the RNAiso Plus or other of 1mL contains phenol, isothiocyanic acid Guanidine, 8-hydroxyquinoline, guanidinium isothiocyanate or beta -mercaptoethanol substance, the chloroform of 200 μ L, the isopropanol of 200 μ L, 200 μ L bodies The water for going RNA enzyme and going DNA enzymatic of ethyl alcohol and 0.02mL that product concentration is 65% to 90%；

Another includes：The cell pyrolysis liquid degraded for lytic cell and inhibition RNA, 500 μ L including 300 μ L The first buffer of washing, the second buffer of washing of 600 μ L, 0.02mL go RNA enzyme and the water of DNA enzymatic, 4 μ L are gone to go Except the double steamings for going RNA enzyme of the recombinant dnase of genomic DNA, the DNA enzymatic buffer, 41 μ L of 5 μ L 10 × removal genomic DNAs Water, the tool that RNA is extracted from human nasal polyps tissues includes RNA purification column；Or including 300 μ L for lytic cell and Inhibit RNA degradation cell pyrolysis liquid, 500 μ L washing the first buffer, 600 μ L the second buffer of washing, The water for going RNA enzyme and going DNA enzymatic of 0.02mL, the tool that RNA is extracted from human nasal polyps tissues include genomic DNA absorption Column and RNA purification column.For the numberical range of above-mentioned restriction, the step of RNA is extracted from human nasal polyps tissues can be realized, and It can be selected according to actual needs to those skilled in the art.Wherein RNA extract is Trizol, RNAiso The title of Blood and RNAiso Plus is trade name.

The cell pyrolysis liquid among the above for rapid smudge cells and the substance of the nuclease that inhibits cell to release, First buffer is used to remove the impurity for the purification column for being adsorbed with RNA, and the second buffer is for removing the purification column for being adsorbed with RNA Impurity and salinity, go RNA enzyme and go the water of DNA enzymatic for dissolving RNA.

In addition the reagent of RNA is extracted in slave human nasal polyps tissues among the above；The reagent for being cDNA by total serum IgE reverse transcription；It adopts With quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out the reagent point of real-time fluorescence quantitative PCR reaction Other independent packaging.

In an alternative embodiment, the human nasal polyps tissues are the human nasal polyps tissues that nasal cavity pathological biopsy obtains, Huo Zhesuo Stating schneiderian membrance cast-off cells is swipe or the viscous nasal polyp cell for taking nasal polyp surface to obtain.Wherein using swipe or the viscous side of taking Formula avoids and causes the surface of a wound to patient, improve patient inspection safety, and operate it is more convenient, saved human cost and Medical treatment cost.

In an alternative embodiment, the data of △ Ct (Ct (CST1)-Ct (GAPDH)) analytic approach analysis amplified production are selected As a result, and be compared with the △ Ct define value be 2.993.The value of defining is limited, examination provided by the invention can be made Accuracy rate of the agent box when detecting chronic nasosinusitis companion's nasal polyp hypotype reaches 85% or more.

The embodiment of the present invention also provide a kind of CST1 gene as biomarker in preparation for detecting chronic nasosinusitis With the application in the product of nasal polyp hypotype.The product therein can be detection reagent, chip or kit.Though above-mentioned reality It applies example and only illustrates the particular technique content of kit, but to those skilled in the art, in the technology of open the application On the basis of scheme, it can directly acquire to obtain the particular technique content of detection reagent and chip product in conjunction with common knowledge.

It is introduced provided by the embodiment of the present invention in detail to become apparent from for detecting chronic nasosinusitis with nasal polyp Asia Application of the kit and CST1 gene of type as biomarker, is described below in conjunction with specific embodiment.

Embodiment 1：

It is a kind of for detecting chronic nasosinusitis with the kit of nasal polyp hypotype, including following reagent：

The reagent of RNA is extracted from human nasal polyps tissues：20mL RNA extract Trizol or RNAiso Blood or RNAiso Plus or other is containing phenol, guanidinium isothiocyanate, the substances such as 8-hydroxyquinoline, guanidinium isothiocyanate, beta -mercaptoethanol, The substance of the rapid smudge cells of energy and the nuclease for inhibiting cell to release；The chloroform of 2mL；The isopropanol of 20mL；The 65 of 40mL ~90% ethyl alcohol；5mL goes RNA enzyme and removes the water of DNA enzymatic；

The reagent for being cDNA by the RNA reverse transcription of extraction：The reverse transcription mixed liquor of 40 μ L is (containing required for reverse transcription Enzyme, RNase inhibitor, 6 random nucleotide primers, poly thymidine, T repeat oligonucleotides, triphosphoric acid deoxyribose core Thuja acid mixture, buffer etc.), 160 μ L go RNA enzyme and remove the water of DNA enzymatic；It wherein goes RNA enzyme and goes the water of DNA enzymatic for mending Neat system, dissolution, dilution RNA；

Using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence quantitative PCR it is anti- The reagent answered：25 μ L premixs (containing enzyme required for PCR and buffer), 0~50 μ L distilled water (used according to total volume Water polishing is to 50 μ L), the dyestuff (fluorescence for carrying out machine compensates and correction) of 0~2 μ L, 100 μM of CST1 gene it is upper Trip primer, the downstream primer of 100 μM of CST1 gene, the upstream primer of 100 μM of reference gene, 100 μM of reference gene Downstream primer, 10 μ g positive controls, 10 μ g negative controls, positive control is the plasmid containing CST1, and negative control is empty plasmid (plasmid vector).

Embodiment 2：

The reagent of RNA is extracted from human nasal polyps tissues：1mLRNA extract Trizol or RNAiso Blood or RNAiso For Plus or other containing phenol, guanidinium isothiocyanate, the substances such as 8-hydroxyquinoline, guanidinium isothiocyanate, beta -mercaptoethanol can be rapidly The substance of smudge cells and the nuclease for inhibiting cell to release；The chloroform of 0.2mL；The isopropanol of 0.2mL；The 65 of 0.2mL~ 90% ethyl alcohol；0.05mL goes RNA enzyme and removes the water of DNA enzymatic；

The reagent for being cDNA by the RNA reverse transcription of extraction：2 μ L reverse transcription mixed liquor (containing enzyme required for reverse transcription, RNase inhibitor, 6 random nucleotide primers, poly thymidine, T repeat oligonucleotides, triphosphate deoxyribose nucleotide Mixture, buffer etc.), 7 μ L go RNA enzyme and remove the water of DNA enzymatic；It wherein goes RNA enzyme and goes the water of DNA enzymatic for polishing body System, dissolution, dilution RNA；

Using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence quantitative PCR it is anti- The reagent answered：5 μ L premixs (containing enzyme required for PCR and buffer), 0~10 μ L distilled water (used according to total volume Water polishing is to 10 μ L), the dyestuff (fluorescence for carrying out machine compensates and correction) of 0~2 μ L, the upstream of 50 μM of CST1 gene Primer, the downstream primer of 50 μM of CST1 gene, the downstream of the upstream primer of 50 μM of reference gene, 50 μM of reference gene is drawn Object, 5 μ g positive controls, 5 μ g negative controls, positive control are the plasmids containing CST1, and negative control is that (plasmid carries empty plasmid Body).

Embodiment 3：

The reagent of RNA is extracted from human nasal polyps tissues：0.1mL RNA extract Trizol or RNAiso Blood or RNAiso Plus or other is containing phenol, guanidinium isothiocyanate, the substances such as 8-hydroxyquinoline, guanidinium isothiocyanate, beta -mercaptoethanol, The substance of the rapid smudge cells of energy and the nuclease for inhibiting cell to release；The chloroform of 0.05mL；The isopropanol of 0.015mL； 65~90% ethyl alcohol of 0.0075mL；0.01mL goes RNA enzyme and removes the water of DNA enzymatic；

The reagent for being cDNA by total serum IgE reverse transcription：The reverse transcription mixed liquor of 1 μ L (contains enzyme, RNA required for reverse transcription Enzyme inhibitor, 6 random nucleotide primers, poly thymidine, T repeat oligonucleotides, triphosphate deoxyribose nucleotide mixes Close object, buffer etc.), 0~10 μ L goes RNA enzyme and removes the water of DNA enzymatic；It wherein goes RNA enzyme and goes the water of DNA enzymatic for polishing body System, dissolution, dilution RNA；

Using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence quantitative PCR it is anti- The reagent answered：1 μ L premix (containing enzyme required for PCR and buffer), 0~10 μ L distilled water (used according to total volume Water polishing is to 10 μ L), the dyestuff (fluorescence for carrying out machine compensates and correction) of 0~2 μ L, the upstream of 1 μM of CST1 gene Primer, the downstream primer of 1 μM of CST1 gene, the upstream primer of 1 μM of reference gene, the downstream primer of 1 μM of reference gene, 1 μ g positive control, 1 μ g negative control, positive control are the plasmids containing CST1, and negative control is empty plasmid (plasmid vector).

Embodiment 4：

It is a kind of for detecting chronic nasosinusitis with the kit of nasal polyp hypotype, including following reagent and tool：

The reagent of RNA is extracted from human nasal polyps tissues：(50 × bis- sulphur Soviet Union is added in RL buffer to the cell pyrolysis liquid of 100 μ L Sugar alcohol (DTT)), the genomic DNA adsorption column for removing genomic DNA, for collect removal genomic DNA after solution receipts First buffer of the impurity of collector, the RNA purification column for being enriched with RNA, 0.1mL for removing the purification column for being adsorbed with RNA, The second buffer, the centrifuge tube for collecting RNA, the 0.01mL that 0.1mL is used to remove impurity and salinity in RNA solution are used for Dissolve the water for going RNA enzyme and going DNA enzymatic of RNA；

Using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence quantitative PCR it is anti- The reagent answered：25 μ L premixs (containing enzyme required for PCR and buffer), 0~10 μ L distilled water (used according to total volume Water polishing is to 10 μ L), the dyestuff (fluorescence for carrying out machine compensates and correction) of 0~2 μ L, 0.01 μM of CST1 gene it is upper Swim primer, the downstream primer of 0.01 μM of CST1 gene, the upstream primer of 0.01 μM of reference gene, 0.01 μM of reference gene Downstream primer, 1 μ g positive control, 1 μ g negative control, positive control is the plasmid containing CST1, and negative control is empty plasmid (plasmid vector).

Embodiment 5：

The reagent of RNA is extracted from human nasal polyps tissues：(50 × bis- sulphur Soviet Union is added in RL buffer to the cell pyrolysis liquid of 0.3mL Sugar alcohol (DTT)), the RNA purification column for being enriched with RNA, 0.5mL be used for remove the purification column for being adsorbed with RNA impurity first Buffer, 0.6mL are used to remove the weight for removing genomic DNA of the second buffer of impurity and salinity in RNA solution, 4 μ L Group DNA enzymatic, 5 μ L DNA enzymatic buffer, the 41 μ L of removal genomic DNA remove the distilled water of RNA enzyme, the centrifugation for collecting RNA Pipe, 0.05mL are used to dissolve the water for going RNA enzyme and going DNA enzymatic of RNA；

The reagent for being cDNA by total serum IgE reverse transcription：The reverse transcription mixed liquor of 2 μ L (contains enzyme, RNA required for reverse transcription Enzyme inhibitor, 6 random nucleotide primers, poly thymidine, T repeat oligonucleotides, triphosphate deoxyribose nucleotide mixes Close object, buffer etc.), 0~10 μ L goes RNA enzyme and removes the water of DNA enzymatic；It wherein goes RNA enzyme and goes the water of DNA enzymatic for polishing body System, dissolution, dilution RNA；

Using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence quantitative PCR it is anti- The reagent answered：5 μ L premixs (containing enzyme required for PCR and buffer), 0~10 μ L distilled water (used according to total volume Water polishing is to 10 μ L), the dyestuff (fluorescence for carrying out machine compensates and correction) of 0~2 μ L, the CST1 gene of 10 μm of ol/L Upstream primer, the downstream primer of the CST1 gene of 10 μm of ol/L, the upstream primer of the reference gene of 10 μm of ol/L, 10 μm of ol/L's The downstream primer of reference gene, 1 μ g positive control, 1 μ g negative control, positive control is the plasmid containing CST1, negative control It is empty plasmid (plasmid vector).

Embodiment 6：

The reagent of RNA is extracted from human nasal polyps tissues：(50 × bis- sulphur threoses are added in RL buffer to the cell pyrolysis liquid of 2mL Alcohol (DTT)), the genomic DNA adsorption column for removing genomic DNA, for collect removal genomic DNA after solution collection First buffer of the impurity of pipe, the RNA purification column for being enriched with RNA, 0.7mL for removing the purification column for being adsorbed with RNA, 0.7mL is used to remove the second buffer, the centrifuge tube for collecting RNA, 1mL of impurity and salinity in RNA solution for molten Solve the water for going RNA enzyme and going DNA enzymatic of RNA；

The reagent for being cDNA by total serum IgE reverse transcription：The reverse transcription mixed liquor of 2 μ L (contains enzyme, RNA required for reverse transcription Enzyme inhibitor, 6 random nucleotide primers, poly thymidine, T repeat oligonucleotides, triphosphate deoxyribose nucleotide mixes Close object, buffer etc.), 0~8 μ L goes RNA enzyme and goes the water of DNA enzymatic (according to RNA amount water polishing to 8 μ L)；Wherein go RNA enzyme And go the water of DNA enzymatic for polishing system, dissolution, dilution RNA；

Using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence quantitative PCR it is anti- The reagent answered：5 μ L premixs (containing enzyme required for PCR and buffer), 0-10 μ L distilled water (according to total volume water Polishing is to 10 μ L), and the dyestuff (fluorescence for carrying out machine compensates and correction) of 0~2 μ L, the upstream of 1 μM of CST1 gene is drawn Object, the downstream primer of 1 μM of CST1 gene, the upstream primer of 1 μM of reference gene, the downstream primer of 1 μM of reference gene, 1 μ G positive control, 1 μ g negative control.

In above-described embodiment 4~6, the manufacturer of the first buffer RWA buffer used is Takara company, goods Numbers 9767；The manufacturer of second buffer RWB buffer is Takara company, article No. 9767.

The kit that this hair inventive embodiments 1~6 provide can be realized the detection of chronic nasosinusitis companion's nasal polyp hypotype, Specific effect detection experiment as follows for detecting chronic nasosinusitis with the kit of nasal polyp hypotype is now provided：

The experiment of nasal polyp hypotype detection effect：

Experimental example one：

1, experimental method：

(1), the collection and processing of sample：

78 CRSwNP patients are randomly selected using after normal saline flushing nasal cavity, take nasal polyp under nasal endoscopes.By nose Polyp is cut into about 0.5 centimetre of diameter of tissue, is soaked in RNA stabilization and storage solutions (RNAlater), 4 DEG C of short-term guarantors Deposit, after be transferred to lower than -20 DEG C of long-term preservations.

(2), the extraction of RNA：

Step 1：It will be soaked in the stable tissue weighing in storage solutions (RNAlater) of RNA, weigh about 0.01g weight Tissue be put in plus the centrifuge tube of magnetic bead in, be placed in liquid nitrogen, carrying out pounding mill (3000r, 5min) on refiner, (or craft is ground Mill).It is dissolved to equipped with addition 1mL Trizol in histiocytic test tube, is collected into centrifuge tube, sufficiently vibrates, room temperature Stand 5 minutes；Then the 200 μ L chloroforms (chloroform) that above-mentioned RNA extracts reagent set are added, acutely concussion mixes, and room temperature is quiet It sets 5 minutes.

Step 2：It 12,000 revs/min, 4 DEG C, is centrifuged 15 minutes.

Step 3：Supernatant is taken, about 200 μ L of its volume is actually obtained, centrifuge tube is added, above-mentioned RNA is added and extracts reagent set Equivalent (about 200 μ L) isopropanol.10 minutes are stood after mixing, 12000 revs/min, 4 DEG C, is centrifuged 15 minutes.Supernatant is abandoned, is protected Stay precipitating.

Step 4：75% ethyl alcohol (the about 150 μ L that above-mentioned RNA extracts (with isopropanol equivalent) about 200 μ L of reagent set are added Dehydrated alcohol and 50 μ L remove the mixture of DNA enzymatic and RNA enzyme water) cleaning precipitating, it mixes.7500 revs/min, 4 DEG C, it is centrifuged 15 points Clock.Supernatant is abandoned, precipitating is retained.

Step 5：Centrifuge tube is covered tightly, 7500 revs/min, 4 DEG C, is centrifuged 2 minutes.

Step 6：It uncaps, abandons supernatant, be statically placed in draught cupboard 15 minutes.

Step 7：Above-mentioned RNA is added and extracts the 0.02mL of reagent set without RNA hydrolase and without DNA hydrolase (RNase- Free and DNase-free) water dissolve precipitating.

Step 8：Using spectrophotometer measurement RNA concentration, and OD260/OD280 ratio is between 1.7-2.1.

(3), reverse transcription prepares cDNA：Reverse transcription (RT) reaction solution is prepared on ice, specifically includes following reagent：2 μ L's Reverse transcription mixed liquor (containing enzyme, RNase inhibitor required for reverse transcription, 6 random nucleotide primers, poly thymidine, T repeats oligonucleotides, triphosphate deoxyribose nucleotide mixture, buffer etc.), it is no more than 500ng or total no more than 8 μ L RNA, 0~8 μ L go RNA enzyme and go the water of DNA enzymatic (according to RNA amount water polishing to 8 μ L)；Take the total serum IgE of extraction and above-mentioned Reverse transcription reaction liquid, which is added in reaction system, to carry out reverse transcription reaction and obtains cDNA template, wherein reaction system can phase on demand It should amplify, 10 μ L reaction systems can the maximum total serum IgE for using 500ng；

Reverse transcription reaction condition is as follows:

37 DEG C 15 minutes (reverse transcription reaction)

84 DEG C 5 seconds (inactivation reaction of reverse transcriptase)

4 DEG C of product placements.

(4) real-time fluorescence quantitative PCR reaction solution is prepared：(contain enzyme required for PCR and buffering including 5 μ L premixs Liquid), the compensation of the machine fluorescence of 0.2 μ L and corrigent, 1ng/ μ L cDNA or positive control or negative control, 0.5 μ L CST1 base The upstream primer of cause, the downstream primer of 0.5 μ L CST1 gene, the upstream primer of 0.5 μ L reference gene, 0.5 μ L reference gene The distilled water of downstream primer and 2.8 μ L；

(5), real-time fluorescence quantitative PCR detects：

Reaction condition：

1st stage：Initial denaturation：95 DEG C, 30 seconds.

2nd stage：PCR reaction：95 DEG C, 15 seconds；60 DEG C, annealing in 1 minute extends, and carries out 40 circulations altogether；2nd stage In：Melting curve：60 DEG C are gradually heated to 95 DEG C, and rate is 0.1 DEG C/sec, acquires fluorescence；

Confirm after reaction real-time fluorescence quantitative PCR amplification curve is as shown in Figures 1 to 4 and melting curve such as Shown in Fig. 5 to Fig. 8, read CST1 and GAPDH Ct value, select △ Ct analytic approach (the Ct value of CST1 subtracts the Ct value of GAPDH) into Row analysis, using GAPDH as reference gene.

(6), data are analyzed：

Step 1：Test the judgement of Quality Control：Positive control Ct value<20 and negative control Ct value>38 are considered as experiment effectively, no Then experiment is invalid；

Step 2：The judgement of parting：The Ct value of target gene subtracts the Ct value (△ Ct value) of reference gene, according to ROC curve, The best dividing value of △ Ct value is 2.993, is Non eosinophilic granulocyte type chronic nasosinusitis with nose if value >=2.993 △ Ct value t Polyp；It is typical eosinophil type chronic nasosinusitis with nasal polyp if △ Ct value t value < 2.993.

2, experimental result：The nasal polyp hypotype testing result such as table for 78 kits of the patient based on above-mentioned offer chosen Shown in 1：

The kit provided by the invention of table 1 and histopathology mode obtain the nasal polyp hypotype testing result of human nasal polyps tissues

The ROC curve figure of above-mentioned 78 samples is as shown in figure 9, using this kit to chronic nasosinusitis with nasal polyp parting Prediction, accuracy rate 87.2%.

Experimental example two：

1, experimental method：

(1), the collection and processing of sample：

After randomly selecting 47 CRSwNP patients normal saline flushing nasal cavity, hairbrush (Copan company is used under nasal endoscopes Produce) 30s, rotation 3-4 circle are pressed in nasal polyp surface, hairbrush is placed in lysate by swipe polyp surface, 4 DEG C of short-term preservations (being no more than 24 hours), or be transferred to lower than -20 DEG C of long-term preservations.

(2), the extraction of RNA：

Step 1：1mL Trizol is added into the test tube equipped with cast-off cells to be dissolved, sufficiently vibrates, is stored at room temperature 5 Minute, 200 μ L chloroforms (chloroform) are then added, acutely concussion mixes, and is stored at room temperature 5 minutes；

Step 2：It 12,000 revs/min, 4 DEG C, is centrifuged 15 minutes；

Step 3：Supernatant is taken, about 200 μ L of its volume is actually obtained, centrifuge tube is added, is added and chloroform equivalent (about 200 μ L isopropanol).10 minutes are stood after mixing, 12000 revs/min, 4 DEG C, is centrifuged 15 minutes.Supernatant is abandoned, precipitating is retained；

Step 4：75% ethyl alcohol of equivalent (with isopropanol equivalent) about 200 μ L of above-mentioned RNA extraction reagent set is added (about 150 μ L dehydrated alcohols and 50 μ L remove the mixture of DNA enzymatic and RNA enzyme water) cleaning precipitating, it mixes, 7500 revs/min, 4 DEG C, from The heart 15 minutes, supernatant is abandoned, retains precipitating；

Step 5：Centrifuge tube is covered tightly, 7500 revs/min, 4 DEG C, is centrifuged 2 minutes；

Step 6：It uncaps, abandons supernatant, be statically placed in draught cupboard 15 minutes；

Step 7：Above-mentioned RNA is added and extracts the 0.02mL of reagent set without RNA hydrolase and without DNA hydrolase (RNase- Free and DNase-free) water dissolve precipitating；

Step 8：Using spectrophotometer measurement RNA concentration, OD260/OD280 ratio 1.7~2.1 preferably；

(3), reverse transcription prepares cDNA：With experimental example one；

(4), real-time fluorescence quantitative PCR reaction solution is prepared：With experimental example one；

(5), real-time fluorescence quantitative PCR detects：With experimental example one；The expansion of real-time fluorescence quantitative PCR is confirmed after reaction Increasing curve is as shown in Figure 10 and Figure 11 and melting curve is as shown in Figure 12 and Figure 13；

(6), data are analyzed：With experimental example one；

2, experimental result：Calculated result is as shown in table 2.

The kit provided by the invention of table 2 obtains the nasal polyp hypotype of schneiderian membrance cast-off cells using swipe nasal polyp surface Testing result

It is got by the data result that table 2 provides, the kit in experimental example two of the present invention is to chronic nasosinusitis with breath The accuracy rate of meat hypotype detection is 93.6%.

Experimental example three:

1, test method：

(1), the collection and processing of sample：

After certain patient normal saline flushing nasal cavity, with hairbrush (production of Copan company) in nasal polyp surface under nasal endoscopes 30s, rotation 3-4 circle are pressed, hairbrush is placed in lysate by swipe polyp surface, 4 DEG C of short-term preservations (being no more than 24 hours), Or it is transferred to lower than -20 DEG C of long-term preservations.

(2) extraction of RNA：

Step 1：Genomic DNA adsorption column (genomic DNA Eraser Spin Column) is placed to the collection of 2mL It manages on (Collection Tube)；

Step 2：Lysate (cell pyrolysis liquid) containing cast-off cells is transferred in genomic DNA adsorption column；

Step 3：It 12,000 revs/min, is centrifuged 1 minute；

Step 4：Genomic DNA adsorption column is abandoned, the filtrate in 2mL collecting pipe is retained；

Step 5：70% ethyl alcohol (at this time it is possible that precipitating) of 300 μ L is added into above-mentioned steps 4, uses liquid-transfering gun Solution is uniformly mixed；

Step 6：Mixed liquor (containing precipitating) RNA purification column (RNASpin Column) is all transferred to immediately (to receive containing 2mL Collector) in；

Step 7：It 12,000 revs/min, is centrifuged 1 minute, abandons filtrate.RNA purification column is put back into 2mL collecting pipe；

Step 8：The first buffer (Buffer RWA) of 500 μ L is added into RNA purification column, 12,000 revs/min, Filtrate is abandoned in centrifugation 30 seconds；

Step 9：The second buffer (Buffer RWB) of 600 μ L is added into RNA purification column, 12,000 revs/min, Filtrate is abandoned in centrifugation 30 seconds.

Step 10：By RNA purification column be placed in 1.5mL without RNA hydrolase collecting pipe (RNase Free Colletion Tube on), RNA purification column film centre be added 50 μ L distilled water (RNase Free dH2O) without RNA hydrolase or 0.1% pyrocarbonic acid diethyl ester (DEPC) handles water, is stored at room temperature 5 minutes；

Step 11：12,000 revs/min of centrifugations, go RNA enzyme and go water elution RNA2 minutes of DNA enzymatic；

Step 12：Using spectrophotometer measurement RNA concentration, OD260/OD280 ratio is 2.0.

(3), reverse transcription prepares cDNA：With experimental example one；

(4), real-time fluorescence quantitative PCR reaction solution is prepared：

Step 1：Configure 1 premix of SYBR Green, 45 μ L；And ROX:1.8 μ L, are divided into 3 parts, respectively after mixing A.11.7μL；B.11.7μL；C.23.4 μ L is added 1ng/ μ L positive control into A respectively and obtains solution A, 1ng/ μ L is added in B Negative control obtains B solution, and the cDNA that addition 2ng is obtained in C obtains C solution, and (1 premix of SYBR Green and ROX are Takara Products, article No. RR820A)；

Step 2：Configure 8 groups of parallel holes；

1st, 2 parallel holes：Solution A, the specific primer of CST1 gene, 3.8 μ L sterilizing distilled water；

3rd, 4 parallel holes：B solution, the specific primer of CST1 gene, 3.8 μ L sterilizing distilled water；

5th, 6 parallel holes：C solution, the specific primer of CST1 gene, 3.8 μ L sterilizing distilled water；

7th, 8 parallel holes：C solution, the specific primer of GAPDH gene, 3.8 μ L sterilizing distilled water；

Step 3：Using transparent adhesive film sealing plate, centrifugation carries out PCR operation.

Step 4：Two-step method PCR amplification standardization program：

(5), real-time fluorescence quantitative PCR detects：

Reaction condition：

1st stage：Initial denaturation：95 DEG C, 30 seconds.

2nd stage：PCR reaction：95 DEG C, 15 seconds；60 DEG C, annealing in 1 minute extends, and carries out 40 circulations altogether.；

Confirm after reaction real-time fluorescence quantitative PCR amplification curve is as shown in figure 14 and melting curve such as Figure 15 It is shown, the Ct value of CST1 and GAPDH is read, selects △ Ct analytic approach (the Ct value of CST1 subtracts the Ct value of GAPDH) to be analyzed, adopts Use GAPDH as reference gene.

(6), data are analyzed：With experimental example one；

2, experimental result：Wherein Positive control wells are averaged Ct：16.2；Negative control hole is averaged Ct：39.7；Sample CST1 is flat Equal Ct：22.5；Sample GAPDH is averaged Ct：16.4；Difference value：22.5-16.4 is 6.1, is greater than 2.993, is that non-acidophil granules are thin Born of the same parents' type chronic nasosinusitis is with nasal polyp.

Experimental example four：

The kit that this hair inventive embodiments 1~6 provide can be realized the detection of chronic nasosinusitis companion's nasal polyp hypotype, The effect detection experiment as follows for detecting chronic nasosinusitis with the kit of nasal polyp hypotype is now carried out by taking embodiment 5 as an example：

(1) collection and processing of sample：

After certain patient normal saline flushing nasal cavity, polyp is taken under nasal endoscopes.Polyp is cut into about 0.5 centimetre of diameter Tissue, be soaked in RNA it is stable and storage solutions (RNAlater) in, 4 DEG C of short-term preservations, after be transferred to it is long-term lower than -20 DEG C It saves.

(2) extraction of RNA：

Step 1：It will be soaked in the stable tissue weighing in storage solutions (RNAlater) of RNA, weigh about 0.01g weight Tissue be put in plus the centrifuge tube of magnetic bead in, be placed in liquid nitrogen, carrying out pounding mill (3000r, 5min) on refiner, (or craft is ground Mill)；0.3mL cell pyrolysis liquid is added, 12,000 revs/min, is centrifuged 15 minutes

Step 2：Draw supernatant, be added 70% ethyl alcohol isometric with supernatant (70% dehydrated alcohol and 30%DEPC or Remove the water of RNA enzyme and DNA enzymatic), solution is uniformly mixed using liquid-transfering gun；

Step 3：Mixed liquor (containing precipitating) is all transferred in RNA purification column (collecting pipe containing 2mL) immediately；

Step 4：It 12,000 revs/min, is centrifuged 1 minute, abandons filtrate.RNA purifying is put back into 2mL collecting pipe；

Step 5：The first buffer (Buffer RWA) of 500 μ L is added into RNA purification column, 12,000 revs/min, Filtrate is abandoned in centrifugation 30 seconds；

Step 6：The second buffer (Buffer RWB) of 600 μ L is added into RNA purification column, 12,000 revs/min, Filtrate is abandoned in centrifugation 30 seconds；

Step 7：The preparation of DNA enzymatic I (DNase I) reaction solution：Take 5 μ L 10 × DNA enzymatic I buffers, 4 μ L recombinant dnases (Recombinant DNase I, (no RNA enzyme, 5U/ μ L), 41 distilled waters of the μ L without RNA enzyme manage (no RNA to new 1.5mL to I Enzyme) in, it is uniformly mixed；

Step 8：50 μ L DNase I reaction solutions are added to the purification column film center RNA, are stored at room temperature 15 minutes；

Step 9：The second buffer of 350 μ L is added to the purification column film center RNA, 12,000 revs/min, is centrifuged 30 seconds Clock abandons filtrate；

Step 10：Repeat step 6；

Step 11：By the relocation of RNA purification column on 2mL collecting pipe, 12,000 revs/min, it is centrifuged 2 minutes；

Step 12：By RNA purification column be placed in 1.5mL without RNA hydrolase collecting pipe (RNase Free Colletion Tube on), RNA purification column film centre be added 50 μ L distilled water (RNase Free dH2O) without RNA hydrolase or 0.1% pyrocarbonic acid diethyl ester (DEPC) handles water, is stored at room temperature 5 minutes；

Step 13：12,000 revs/min of centrifugations, go RNA enzyme and go water elution RNA2 minutes of DNA enzymatic；

Step 14：Using spectrophotometer measurement RNA concentration, OD260/OD280 ratio is 2.0；

(3) reverse transcription prepares cDNA：With experimental example one；

(4) real-time fluorescence quantitative PCR reaction solution is prepared：With experimental example three；

(5), real-time fluorescence quantitative PCR detects：

Reaction condition uses three-step approach PCR amplification standardization program：

1st stage：Initial denaturation：95 DEG C, 2 minutes；

2nd stage：PCR reaction：95 DEG C, 1 minute；55 DEG C, 1 minute, 72 DEG C 1 minute, altogether carry out 40 circulation, last 72 DEG C, annealing in 7 minutes extends；

Confirm after reaction real-time fluorescence quantitative PCR amplification curve is as shown in figure 16 and melting curve such as Figure 17 It is shown, the Ct value of CST1 and GAPDH is read, selects △ Ct analytic approach (the Ct value of CST1 subtracts the Ct value of GAPDH) to be analyzed, adopts Use GAPDH as reference gene.

(6) data are analyzed：With experimental example one；

2, experimental result：Positive control wells are averaged Ct：16.7；Negative control hole is averaged Ct：38.4；Sample CST1 is average Ct：24.7；Sample GAPDH is averaged Ct：19.4；Difference value：It is 5.3, is greater than 2.993, is the chronic nose of Non eosinophilic granulocyte type Sinusitis is with nasal polyp.

In conclusion the present invention provides a kind of kit for detecting chronic nasosinusitis with nasal polyp hypotype, screening is adopted It uses CST1 gene as biomarker, applies it in kit, carry out detecting chronic nasal sinus using kit to realize The scorching method with nasal polyp hypotype, it is accurate fast, accurately and comprehensively to be carried out for patient's nasal polyp hypotype by kit Identify, to be carried out as early as possible according to the inflammation hypotype of nasal polyp for treatment is changed, effectively guidance is for chronic nasosinusitis with nasal polyp Reaction, the judging prognosis effect of drug therapy are accurately estimated in the determination of the medical treatment regime and modus operandi of patient.

Sequence table

<110>It raises

Wang Chengshuo

Yan Bing

Beijing Otorhinolaryngology Inst.

Capital University Of Medical Sciences Affiliated Beijing Tongren Hospital

<120>For detecting chronic nasosinusitis with kit and CST1 gene the answering as biomarker of nasal polyp hypotype With

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<141> 2018-07-03

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Claims

1. a kind of for detecting chronic nasosinusitis with the kit of nasal polyp hypotype, it is characterised in that：The kit includes The specific primer of CST1 gene.

2. according to claim 1 for detecting chronic nasosinusitis with the kit of nasal polyp hypotype, it is characterised in that：Institute State the upstream primer such as SEQ ID NO of CST1 gene:Shown in 2, the downstream primer of the CST1 gene such as SEQ ID NO:3 institutes Show.

3. according to claim 1 or 2 is described in any item for detecting chronic nasosinusitis with the kit of nasal polyp hypotype, spy Sign is：The kit further comprises the specific primer of reference gene.

4. according to claim 3 for detecting chronic nasosinusitis with the kit of nasal polyp hypotype, it is characterised in that：Institute Stating reference gene is GAPDH, the upstream primer of the GAPDH such as SEQ ID NO:Shown in 4, the downstream primer of the GAPDH is such as SEQ ID NO:Shown in 5.

5. according to claim 3 for detecting chronic nasosinusitis with the kit of nasal polyp hypotype, it is characterised in that：Institute Kit is stated to further comprise：The reagent of RNA is extracted from human nasal polyps tissues or from schneiderian membrance cast-off cells；Total serum IgE is inverse It is transcribed into the reagent of cDNA；Using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence The reagent of quantitative PCR reaction.

6. according to claim 5 for detecting chronic nasosinusitis with the kit of nasal polyp hypotype, it is characterised in that：

It is described to include by the reagent that total serum IgE reverse transcription is cDNA：It reverse transcription mixed liquor and goes RNA enzyme and removes the water of DNA enzymatic；

Using quantitative polyase chain reaction by cDNA CST1 gene and reference gene carry out real-time fluorescence quantitative PCR reaction Reagent includes：PCR premix, distilled water, the compensation of machine fluorescence and corrigent, the upstream primer of CST1 gene, CST1 gene Downstream primer, the downstream primer of the upstream primer of reference gene and reference gene.

7. according to claim 5 for detecting chronic nasosinusitis with the kit of nasal polyp hypotype, it is characterised in that：Institute It states from human nasal polyps tissues or the reagent of extraction RNA includes from schneiderian membrance cast-off cells：It is RNA extract, chloroform, isopropanol, dense The ethyl alcohol for 65%~90% is spent, RNA enzyme is gone and removes the water of DNA enzymatic.

8. according to claim 5 for detecting chronic nasosinusitis with the kit of nasal polyp hypotype, it is characterised in that：Institute State from human nasal polyps tissues extract RNA reagent include：Cell pyrolysis liquid, for removing the impurity for being adsorbed with the purification column of RNA The first buffer, for remove be adsorbed with the purification column of RNA impurity and salinity the second buffer and go RNA enzyme and go The water of DNA enzymatic；The tool that RNA is extracted from human nasal polyps tissues includes RNA purification column.

9. according to claim 8 for detecting chronic nasosinusitis with the kit of nasal polyp hypotype, it is characterised in that：Institute Stating from the reagent for extracting RNA in human nasal polyps tissues further includes DNA enzymatic reaction solution or the work that RNA is extracted from human nasal polyps tissues Tool further includes genomic DNA adsorption column；The DNA enzymatic reaction solution includes DNA enzymatic buffer, recombinant dnase and pair for going RNA enzyme Steam water.

10. a kind of CST1 gene is as biomarker in preparation for detecting in product of the chronic nasosinusitis with nasal polyp hypotype Application.