Summary of the invention
An object of the present invention is that providing a kind of is examined by detection ZACN gene or protein expression difference
The method of disconnected hypopharyngeal cancer.
The two of the purpose of the present invention are that providing a kind of comes pre-by detection ZACN gene or protein expression difference
The method surveying hypopharyngeal cancer prognosis.
The three of the purpose of the present invention are that providing a kind of is treated by suppression ZACN gene or ZACN albumen
The method of hypopharyngeal cancer.
A kind of method that the four of the purpose of the present invention are to provide medicine for screening treatment hypopharyngeal cancer.
The five of the purpose of the present invention are to provide a kind of medicine for treating hypopharyngeal cancer.
To achieve these goals, present invention employs following technical scheme:
The product that the invention provides detection ZACN gene or ZACN albumen is preparing hypopharyngeal cancer diagnostic tool
In purposes.
The product that present invention also offers detection ZACN gene or ZACN albumen is pre-at preparation prediction hypopharyngeal cancer
Purposes in rear instrument.
Further, the product of described detection ZACN gene or ZACN albumen include detect ZACN gene or
The product of the expression of ZACN albumen.Described product include can in conjunction with the nucleic acid of ZACN gene or
Can be in conjunction with the material (such as antibody) of ZACN albumen.Described nucleic acid can detect the expression of ZACN gene
Level;Described material can detect the expression of ZACN albumen.
The product of the detection ZACN gene of the present invention can play it based on the known method using nucleic acid molecules
Function: as PCR, as Southern hybridization, Northern hybridization, dot blot, fluorescence in situ hybridization (FISH),
DNA microarray, ASO method, high-flux sequence platform etc..Use this product can qualitatively, quantitatively,
Or semi-quantitatively implement to analyze.
The nucleic acid being included in the said goods can be obtained by chemosynthesis, or by preparing from biomaterial
Containing expectation nucleic acid gene, then use be designed for amplification expectation nucleic acid primer amplification it obtain.
Further, described PCR method is known method, such as, and ARMS (Amplification Refractory
Mutation System, amplification do not answer abruptly-changing system) method, RT-PCR (reverse transcriptase-PCR) method, nesting
PCR method etc..The nucleic acid of amplification can be by using dot blotting hybridization method, Surface Plasmon Resonance (SPR
Method), PCR-RFLP method, B by means of in situ RT PCR, PCR-SSO (sequence specific oligonucleotide) method,
PCR-SSP method, AMPFLP (amplifiable fragment length polymorphism) method, MVR-PCR method and
PCR-SSCP (single strand conformation polymorphism) method detects.
Nucleic acid recited above includes the primer expanding ZACN gene, and the primer that product includes can pass through
Being prepared by chemosynthesis, the method that be those skilled in the art will know that by use is come suitably with reference to Given information
Ground design, and prepared by chemosynthesis.
In specific embodiments of the present invention, described nucleic acid is the amplimer used in QPCR experiment, institute
State shown in sequence such as SEQ ID NO.1 (forward sequence) and SEQ ID NO.2 (reverse sequence) of primer.
Nucleic acid recited above may also include probe, and described probe can be prepared by chemosynthesis, by making
Appropriately design with reference to Given information by the method that those skilled in the art will know that, and prepared by chemosynthesis,
Or the gene containing expectation nucleotide sequence from biomaterial preparation can be passed through, and use is designed for the amplification phase
Hope nucleotide sequence primer amplification it prepare.
The product of the detection ZACN albumen of the present invention can play its function based on the known method using antibody:
For example, it is possible to include ELISA, radioimmunoassay, immunohistochemical method, western blot etc..
The product of the detection ZACN albumen of the present invention includes antibody or its sheet of specific binding ZACN albumen
Section.Antibody or its fragment of any structure, size, immunoglobulin class, origin etc. can be used, as long as
It combines target protein.Antibody or its fragment that the detection product of the present invention includes can be monoclonal
Or it is polyclonal.Antibody fragment refers to an antibody part (Partial Fragment) retaining antibody to the combination activity of antigen
Or the peptide containing an antibody part.Antibody fragment can include F (ab ')2, Fab ', Fab, scFv (scFv),
The Fv (dsFv) of disulphide bonding or its polymer, dimerization V district (double antibody) or containing CDR
Peptide.The product of the detection ZACN albumen of the present invention can include the amino of encoding antibody or Encoding Antibody Fragment
The nucleic acid of the separation of acid sequence, comprises the carrier of this nucleic acid, and carries the cell of this carrier.
Antibody can be by well known to a person skilled in the art that method obtains.Such as, preparation retains whole or portion
The polypeptide dividing target protein or the mammalian cell expression vector integrating their polynucleotide of coding are as anti-
Former.Use after antigen-immunized animal, from through the animal adaptive immune cell of immunity fused bone myeloma cells with
Obtain hybridoma.Then antibody is collected from Hybridoma culture.Finally can be used as antigen by use
ZACN albumen or its part antibody to obtaining are implemented antigenic specificity purification and are obtained for ZACN albumen
Monoclonal antibody.Polyclonal antibody can be prepared as follows: with antigen-immunized animal same as above, from warp
The animal crossing immunity collects blood sample, isolates serum from blood, then uses above-mentioned antigen real to serum
Execute antigenic specificity purification.Can be by the antibody obtained with ferment treatment or the sequence of the antibody obtained by use
Information obtains antibody fragment.
The combination of label and antibody or its fragment can be implemented by method as commonly known in the art.Such as,
Can fluorescent marker protein or peptide as follows: clean protein or peptide with phosphate buffer, add with DMSO,
Buffer agent, etc. preparation dyestuff, then mixed solution, then at room temperature place 10 minutes.It addition, labelling can
The labelling kit of commodity in use, such as biotin labeling reagent box, as biotin labeling reagent box-NH2,
Biotin labeling reagent box-SH (DojindoLaboratories);Alkali phosphatase enzyme mark test kit such as alkalescence phosphorus
Acid enzyme labelling test kit-NH2, alkali phosphatase enzyme mark test kit-SH (Dojindo Laboratories);Peroxide
Compound enzyme labelling test kit such as peroxidase labelling test kit-NH2, peroxidase labelling test kit
-NH2(Dojindo Laboratories);Phycobniliprotein labelling kit such as phycobniliprotein labelling kit
-NH2, phycobniliprotein labelling kit-SH, B-phycoerythrin labelling kit-NH2, B-phycoerythrin
Labelling kit-SH, R-PE labelling kit-NH2, R-PE labelling kit
SH(DojindoLaboratories);Fluorescent labeling reagent box such as fluorescein labelling kit-NH2, HiLyte
Fluor (TM) 555 labelling kit-NH2, HiLyte Fluor (TM) 647 labelling kit-NH2 (Dojindo
Laboratories);And DyLight 547 and DyLight647 (Techno Chemical Corp.), Zenon (TM),
Alexa Fluor (TM) antibody labeling test kit, Qdot (TM) antibody labeling test kit (Invitrogen
And EZ-label Protein Labeling Kit (Funakoshi Corporation) Corporation).In order to correctly
Labelling, it is possible to use suitable instrument detects the antibody through labelling or its fragment.
Sample as the detection product according to the present invention, it is possible to use the tissue such as obtained from biopsy experimenter
Sample or fluid.Sample is not particularly limited, as long as it is suitable to the mensuration of the present invention;Such as, it can include
Tissue, blood, blood plasma, serum, lymph fluid, urine, serous cavity liquid, spinal fluid, synovial fluid, aqueous humor, tear
Liquid, saliva or its fraction or treated material.
In specific embodiments of the present invention, described sample is from the tissue of experimenter.
In the present invention, " prognosis " refer to that tumor patient is by the suppression such as surgical procedure or alleviate tumor growth
After process or result.In this manual, prognosis can be to be suppressed by surgical procedure or alleviate tumor growth
Life state when latter 1,2,3,4,5,6,7,8,9,10,15,20 years or more long.Prognosis can
With by checking that the gene of biomarker i.e. ZACN albumen or coding ZACN albumen is predicted.Prognosis is pre-
Survey can be performed such that according to biomarker with or without, or be raised and lowered, determine the prognosis of patient
It is good or bad, or determines the probability of good prognosis or poor prognosis.
In the present invention, " prognosis bona " refers to suppressed or alleviation tumor life for patient by surgical procedure etc.
After length, patient (such as 3,5,6,7,8,9,10,15,20 years or longer) over a long time not danger
Anxious situation.Or, good prognosis can mean to survive in the most long-time, without transfer, without recurrence or without again
Send out.Such as, prognosis bona can mean at least 3 years or survival in especially at least 5 years, preferably without transfer
Or recurrence.The most preferred state of prognosis bona is the long-term survival without disease.As used herein, " pre-
Rear good " can also include any such state, wherein it appeared that disease such as transfer, but pernicious low and
Do not severely impact survival ability.
In the present invention, " prognosis mala " refers to that patient is by the suppression such as surgical procedure or alleviation tumor growth
After short-term (such as 1,2,3,4,5 years or shorter) in occur fatal condition.Or, poor prognosis is
Refer to death in such short-term, shift, recur or send out again.Such as, poor prognosis can mean at least 3
Year or Preventive or death in especially at least 5 years.
Prediction prognosis refers to predict process or the result of status of patient, and being not meant to can be with the accuracy of 100%
The process of prediction status of patient or result.Prediction prognosis refers to whether the probability determining some process or result increases
Add, and be not meant to be compared by situation about not occurring with some process or result determine generation some process
Or the probability of result.For the present invention, the level liter of ZACN gene or ZACN albumen in the present invention
In high patient, compared with the patient not showing this feature, more likely observe particular procedure or result.
Further, the product of described detection ZACN gene or ZACN albumen can be detection ZACN gene
Or the reagent of ZACN albumen, can also be to comprise the test kit of described reagent, chip, reagent paper etc., it is possible to
To be the high-flux sequence platform using described reagent.
Present invention also offers a kind of instrument diagnosing hypopharyngeal cancer, described instrument can detect ZACN gene or
The expression of ZACN albumen.Described instrument includes can be in conjunction with the nucleic acid of ZACN gene or can tie
Close the material (such as antibody) of ZACN albumen.Described nucleic acid can detect the expression of ZACN gene;
Described material can detect the expression of ZACN albumen.
Further, the character of described nucleic acid and described material is with noted earlier.
Further, the instrument of described diagnosis hypopharyngeal cancer includes but not limited to chip, test kit, reagent paper or high pass
Measure sequence platform;High-flux sequence platform is the instrument of a kind of special diagnosis hypopharyngeal cancer, along with high-flux sequence
The development of technology, will become the structure of the gene expression profile of a people and work the most easily.By contrast disease
Patient and the gene expression profile of normal population, the exception easily analyzing which gene is relevant to disease.Therefore,
The exception purposes that fall within ZACN gene relevant to hypopharyngeal cancer of ZACN gene is known in high-flux sequence,
Same within protection scope of the present invention.
Present invention also offers a kind of instrument predicting hypopharyngeal cancer prognosis, described prediction hypopharyngeal cancer prognostic tool includes
Can be in conjunction with the nucleic acid of ZACN gene or can be in conjunction with the material (such as antibody) of ZACN albumen.Described
Nucleic acid can detect the mRNA level in-site of ZACN gene;Described material can detect the expression of ZACN albumen
Level.
Further, the character of described nucleic acid and described material is with noted earlier.
Further, the instrument of described prediction hypopharyngeal cancer prognosis include but not limited to chip, test kit, reagent paper or
High-flux sequence platform;High-flux sequence platform is the instrument of a kind of special diagnosis hypopharyngeal cancer, along with high flux
The development of sequencing technologies, will become the structure of the gene expression profile of a people and work the most easily.By right
Ratio Disease and the gene expression profile of normal population, the exception easily analyzing which gene is relevant to disease.
Therefore, in high-flux sequence, know that the exception of ZACN gene is relevant to hypopharyngeal cancer fall within ZACN gene
Purposes, equally within protection scope of the present invention.
The ammonia that the anti-ZACN antibody used in detection product, the diagnostic tool of the present invention or its fragment are identified
The number of base acid is not particularly limited, as long as antibody can be in conjunction with ZACN.When antibody is as curative
During thing, preferably it is capable of identify that aminoacid as much as possible, as long as it can suppress ZACN function.Anti-
The amino acid whose number of body or its fragment identification is at least one, more preferably at least three.The immune globulin of antibody
White classification is unrestricted, can be IgG, IgM, IgA, IgE, IgD or IgY.
Present invention also offers a kind of diagnose hypopharyngeal cancer or prediction hypopharyngeal cancer prognosis method, described method include as
Lower step:
(1) sample of experimenter is obtained;
(2) ZACN gene or the expression of albumen in detection Samples subjects;
(3) the ZACN gene recorded or the expression of albumen are associated with the whether ill of experimenter.
(4) compared with the control, the expression of ZACN gene or albumen raises, then this experimenter is diagnosed
For hypopharyngeal cancer, or this experimenter is confirmed as prognosis mala.
Present invention also offers the Therapeutic Method of a kind of hypopharyngeal cancer, described method include suppress ZACN gene or
ZACN albumen.
Further, described method includes the expression suppressing ZACN gene, or the expression of suppression ZACN albumen
Or the activity of suppression ZACN albumen.
Present invention also offers the screening technique of a kind of tumour medicine, can be by tumor cell be being added test
Measure certain period after medicine or after tumor model animal is used testing drug ZACN gene or
The expression of ZACN albumen measures tumour medicine and improves the effect of tumor prognosis.More specifically, when
The expression of ZACN gene or ZACN albumen is when adding or reduce after using testing drug or extensive
During multiple normal level, this medicine optional is as the medicine improving tumor prognosis.
Present invention also offers a kind of containing ZACN gene or the medicine of the inhibitor of ZACN albumen.
Present invention also offers the application in the medicine of preparation treatment hypopharyngeal cancer of the above-mentioned inhibitor.
The ZACN gene of the present invention or the inhibitor of ZACN albumen are unrestricted, as long as can suppress
ZACN or relate to the expression of material or the activity of ZACN upstream or downstream pathway, and treatment tumor is had
The medicine of effect.
Further, described inhibitor includes antisensenucleic acids, dsRNA, ribozyme, fit, ZACN associated proteins
Fragment or antibody or its fragment.
" antisensenucleic acids " refers to containing the nucleic acid with the sequence of the mRNA complementation of coding ZACN.Antisensenucleic acids
Can by DNA, RNA or the two form.Antisensenucleic acids need not and the mRNA100% of target ZACN
Complementary.Antisensenucleic acids can contain Non-complementary bases, as long as it can specific hybrid under strict conditions.
When antisensenucleic acids is introduced cell, it combine target polynucleotide and suppression is transcribed, RNA processing, translation or
Stability.In addition to antisense polynucleotides, antisensenucleic acids also includes polynucleotide analogies, and it contains through repairing
The main chain of decorations and 3 ' and 5 ' end portion.Such antisensenucleic acids can come just according to ZACN sequence information
When design use well known to a person skilled in the art that method generates.
" dsRNA " refers to, containing duplex-RNA constructs, carry out inhibition of gene expression by RNA interference (RNAi)
RNA, including siRNA (short interfering rna) and shRNA (short hairpin RNA).DsRNA need not
With the homology that target-gene sequence has 100%, as long as it can suppress expression of target gene.For stabilisation
Or other purpose, a part of DNA of dsRNA can be substituted.Preferably, siRNA is 21-23
The double-stranded RNA of individual base.SiRNA can be by well known to a person skilled in the art prepared by method, such as
By chemosynthesis or as the analog naturally occurring RNA.ShRNA is to have hair clip corner (hairpin
Turn) Short interfering RNA of structure.ShRNA can by well known to a person skilled in the art prepared by method,
Such as by chemosynthesis or by the DNA of coding shRNA is introduced cell expressible dna.
" ribozyme " refers to the RNA with catalysis activity, and it can cut, pastes, insert and transfer RNA.
The structure of ribozyme can include tup, hair clip etc..
" fit " refers to combine the nucleic acid of something such as protein.Fit can be RNA or DNA.Nucleic acid
Form can be double-strand or strand.Fit infinite in length system, if it can specific binding target molecule,
Can by such as 10 to 200 nucleotide, preferably 10 to 100 nucleotide, more preferably 15 to 80
Nucleotide, even more preferably 15 to 50 nucleotide compositions.Fit can use those skilled in the art
Known method selects.It is for instance possible to use SELEX (part carried out by exponential form enrichment be
System is evolved).
" the protein-bonded fragment of ZACN " refers to combine ZACN and the albumen of suppression ZACN enforcement original function
The fragment of matter.
The medicine of the present invention can be administered alone as medicine or use together with other medicines.Can be with the present invention
The other medicines used together of medicine unrestricted, as long as it does not damage the therapeutic of the present invention or preventative medicine
The effect of thing, it is preferred that the medicine for treatment or prophylaxis of tumours can include such as alkylating agent, all
As ifosfamide, cyclophosphamide, dacarbazine, temozolomide, nimustine, busulfan, procarbazine,
Melphalan and Ranimustine;Antimetabolite, such as enocitabine, capecitabine, carmofur, cladribine,
Gemcitabine, cytosine arabinoside, cytosine arabinoside octadecyl phosphate (cytarabine ocfosfate), ftorafur,
UFT, ftorafur gimeracil oteracil potassium, doxifluridine, hydroxyurea, fluorouracil,
Fludarabine, pemetrexed, pentostatin, mercaptopurine and methotrexate;Plant alkaloid, such as Yi Li
For health, etoposide, sobuzoxane, docetaxel, nogitecan, Pa Litasai, vinorelbine, Changchun
Pungent and the vinblastine in ground;Antitumor antibiotic, such as actinomycin D, aclarubicin, amrubicin, Yi Da ratio
Star, epirubicin, zinostatin stimalamer, daunorubicin, doxorubicin, pirarubicin, rich come mould
Element, peplomycin, ametycin and mitoxantrone;Medicine based on platinum, such as oxaliplatin, carboplatin,
Cisplatin and nedaplatin;Hormonal medicaments, such as Anastrozole, exemestane, estramustine, ethinylestradiol, chlorine
Ground progesterone, goserelin, tamoxifen, dexamethasone, toremifene, bicalutamide, flutamide, bold and vigorous Buddhist nun
Song Long, fostestrol, mitotane, methyltestosterone, medroxyprogesterone, mepitiostane, leuprorelin and letrozole;Raw
Thing reaction dressing agent, such as interferon-ALPHA, interferon beta, interferon gamma, interleukin, ubenimex, dry BCG,
And lentinan;And molecular targeted agents, such as imatinib (imatinib), gefitinib (gefitinib), Ji
Nurse monoclonal antibody, ozogamicin, Tamibarotene, trastuzumab, tretinoin, bortezomib (bortezomib),
With Rituximab etc..
The medicine of the present invention can be prepared as various dosage form as required.Include but not limited to, percutaneous, mucosa, nose,
Buccal, Sublingual or the tablet of per os use, solution, granule, patch, unguentum, capsule, aerosol
Or suppository.
The route of administration of the medicine of the present invention is unrestricted, as long as it can play desired therapeutic effect or pre-preventive effect
Fruit, includes but not limited to intravenous, intraperitoneal, ophthalmic, intra-arterial, in lung, is administered orally, in vesicle,
Intramuscular, tracheal strips, subcutaneous, by skin, by pleura, local, suck, by mucosa, skin
Skin, the intestines and stomach, intraarticular, in ventricle, rectum, vagina, in skull, in urethra, in liver, in tumor.At certain
In the case of Xie, can systematically be administered.It is to be administered partly in some cases.
The dosage of the medicine of the present invention is unrestricted, as long as obtaining desired therapeutic effect or preventive effect,
Appropriate determination can be carried out according to symptom, sex, age etc..The medicine of the present invention or the agent of prophylactic agent
Amount can use such as therapeutic effect or preventive effect to disease to determine as index.
In the context of the present invention, " diagnosis hypopharyngeal cancer " both includes judging that experimenter has suffered from hypopharynx
Cancer, also include judging whether experimenter exists the risk suffering from hypopharyngeal cancer.
" treatment " used herein contains treatment phase in the mammal such as mankind suffering from relevant disease or disease
The disease closed or morbid state, and include:
(1) prevention disease or morbid state occur in mammal, especially susceptible in institute when this mammal
State morbid state, but be not yet diagnosed when suffering from this morbid state;
(2) suppression disease or morbid state, i.e. stop it to occur;Or
(3) disease or morbid state are alleviated, even if disease or morbid state disappear.
Term " is treated " and is usually directed to treat the mankind or animal (such as, applied by veterinary), wherein can reach certain
Some intended therapeutic effect, such as, the development (including reducing development speed, making development stop) of suppression disease,
Improve disease and cure disease.Also include the treatment as preventive measure (such as prevention).To the most not developing into
Disease but have develops into the purposes of the dangerous patient of this disease, is also included within during term " treats ".
Advantages of the present invention and beneficial effect:
The present invention is found that a kind of molecular marker diagnosing hypopharyngeal cancer, use this molecular marker can under
The early stage that pharyngeal cancer occurs can be used as judging, it is provided that the survival rate of patient.
It addition, by the prognosis predicting patient, the present invention can provide significant information to determine to control for patient
Treat scheme policies.
The medicine of the inhibitor including ZACN gene or albumen of the present invention can be used as new hypopharyngeal cancer
Medicine.