CN106290919B - For detecting the ELISA kit and application method of castration-resistant prostate cancer - Google Patents
For detecting the ELISA kit and application method of castration-resistant prostate cancer Download PDFInfo
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- CN106290919B CN106290919B CN201610770861.7A CN201610770861A CN106290919B CN 106290919 B CN106290919 B CN 106290919B CN 201610770861 A CN201610770861 A CN 201610770861A CN 106290919 B CN106290919 B CN 106290919B
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- prostate cancer
- actg1
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- elisa
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/574—Immunoassay; Biospecific binding assay; Materials therefor for cancer
- G01N33/57407—Specifically defined cancers
- G01N33/57434—Specifically defined cancers of prostate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/435—Assays involving biological materials from specific organisms or of a specific nature from animals; from humans
- G01N2333/46—Assays involving biological materials from specific organisms or of a specific nature from animals; from humans from vertebrates
- G01N2333/47—Assays involving proteins of known structure or function as defined in the subgroups
- G01N2333/4701—Details
- G01N2333/4712—Muscle proteins, e.g. myosin, actin, protein
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Abstract
The invention discloses a kind of ELISA kit and application method for being used to detect castration-resistant prostate cancer, it is related to immunoassay.Kit of the present invention includes ACTG1 antibody, and detects the ACTG1 contents in serum by double antibody sandwich ELISA, determines whether patient has progressed to castration-resistant prostate cancer.The effective product for solving the problems, such as to detect castration-resistant prostate cancer in the prior art of the invention or method poor specificity, accuracy be not high.Kit of the present invention diagnoses castration-resistant prostate cancer according to the content of ACTG1 in serum, has higher sensitivity and specificity.Kit of the present invention quick, reasonable simple to operate, can improve the diagnosis efficiency of castration-resistant prostate cancer, have broad application prospects.
Description
Technical field
The present invention relates to immunoassay, specifically a kind of ELISA reagents for being used to detect castration-resistant prostate cancer
Box and application method.
Background technology
Prostate cancer is the most common malignant tumour of male urinary system, relatively conventional in American-European countries, is that male is most normal
The malignant tumour seen, account for the second of all malignant tumours.China is the relatively low country of traditional prostate-cancer incidence, still
Recently as the raising of living standards of the people, the change of environment, and the raising of disorder in screening popularity rate, the prostate in China
Cancer morbidity rises year by year.Prostate cancer turns into a kind of important diseases for threatening China's men's health, by more
Come more concern and attention.
One of most important therapeutic modality of prostate cancer is exactly castration therapy, including medicine anti-androgen therapy and operation
Castration, suppress the growth of tumour in a manner of preventing androgen from being attached on androgen receptor.In prostate cancer in early days,
Castration has preferable effect, but after treatment after a while, prostate cancer be gradually converted into androgen it is non-according to
Rely property, no longer sensitive to castration, the state of an illness deteriorates once again, i.e. castration-resistant prostate cancer（CRPC）Stage.Castration is supported
The pathogenesis of refractory prostate cancer it is not immediately clear, be prostate cancer basis and clinic also without preferable treatment method
The problem in field.
The diagnosis for castration-resistant prostate cancer does not have good method at present, mainly by monitoring prostate
The change of specific antigen and testosterone, and according to clinical manifestation come comprehensive descision, shortage preferably specificity, it is impossible to exactly
Judge castration-resistant prostate cancer.Early find castration-resistant prostate cancer, the formulation to anaphase strategy and
Prostate cancer is more in depth recognized from molecular level, there is very important meaning.
The content of the invention
The present invention is exactly to solve the product for detecting castration-resistant prostate cancer in the prior art or method specificity
Difference, the problem of accuracy is not high, a kind of ELISA kit and the use for being used to detect castration-resistant prostate cancer proposed
Method.
The present invention is realized according to following technical scheme.
A kind of ELISA kit for being used to detect castration-resistant prostate cancer, the kit include ACTG1 antibody,
And the detection reagent needed for double antibody sandwich ELISA.
A kind of ELISA kit for being used to detect castration-resistant prostate cancer, the kit include coating ACTG1 and resisted
ELISA ELISA Plates, standard items, standard items ＆ sample diluting liquids, the ACTG1 antibody of biotin labeling, the Avidin of body mark
One or more in horseradish peroxidase, cleaning solution, substrate solution, reaction terminating liquid, overlay film.
Detect the serum that sample is patients with prostate cancer.
A kind of above-mentioned application method for being used to detect the ELISA kit of castration-resistant prostate cancer, including following step
Suddenly：
I, gathers patients with prostate cancer whole blood sample, centrifuging and taking supernatant；
II, sets blank well, gauge orifice, testing sample hole respectively, and blank well adds standard items sample diluting liquid, remaining hole difference
Add standard items or testing sample, mix；ELISA Plate adds overlay film, is incubated；
III, discards liquid in hole, dries；The ACTG1 antibody of biotin labeling is added per hole, ELISA Plate adds overlay film, incubates；
IV, discards liquid in hole, dries, and washs ELISA Plate, then dry；
V, adds the horseradish peroxidase of Avidin mark per hole, and ELISA Plate adds overlay film, incubates；
VI, discards liquid in hole, dries, and washs ELISA Plate, then dry；
VII, adds substrate solution per hole, and ELISA Plate adds overlay film, and lucifuge is incubated；
VIII, adds reaction terminating liquid per hole；
The OD values in each hole are measured under Ⅸ, 450nm wavelength；
Ⅹ, calculates serum sample ACTG1 detected value according to the OD values of standard items, and judges its size with decision threshold
Relation.
In the step I whole blood sample in room temperature place 0 ~ 4 hour or 0 ~ 8 DEG C overnight after 500 ~ 1500 × g centrifuge 10 ~
30 minutes.
ELISA Plate is washed in the step IV 1 ~ 5 time, soak 1-2 minutes every time；ELISA Plate is washed in step VI 3 ~ 7 times,
Immersion 1-2 minutes every time.
ELISA Plate is washed in the step IV 3 times, every time immersion 1.5 minutes；ELISA Plate is washed in step VI 5 times, every time
Immersion 1.5 minutes.
The decision threshold is the mg/ml of 78174.25mg/ml ~ 95546.31.
The decision threshold is 86860.28mg/ml.
Present invention obtains following beneficial effect.
It is of the invention effectively to solve the product for detecting castration-resistant prostate cancer in the prior art or method specificity
Difference, the problem of accuracy is not high.Kit of the present invention diagnoses castration-resistant prostate according to the content of ACTG1 in serum
Cancer, there is higher sensitivity and specificity.Kit of the present invention quick, reasonable simple to operate, can improve castration resistance
The diagnosis efficiency of property prostate cancer, has broad application prospects.
Brief description of the drawings
Fig. 1 is that ACTG1 is examined in the non-castration-resistant prostate cancer of the present invention and castration-resistant prostate cancer patients serum
The statistical result figure of measured value；
Fig. 2 is the ROC curve figure that the present invention diagnoses castration-resistant prostate cancer with serum ACTG1 levels.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described further.
A kind of ELISA kit for being used to detect castration-resistant prostate cancer, the kit include ACTG1 antibody,
And the detection reagent needed for double antibody sandwich ELISA.
A kind of ELISA kit for being used to detect castration-resistant prostate cancer, the kit include coating ACTG1 and resisted
ELISA ELISA Plates, standard items, standard items ＆ sample diluting liquids, the ACTG1 antibody of biotin labeling, the Avidin of body mark
One or more in horseradish peroxidase, cleaning solution, substrate solution, reaction terminating liquid, overlay film.
Detect the serum that sample is patients with prostate cancer.
A kind of above-mentioned application method for being used to detect the ELISA kit of castration-resistant prostate cancer, including following step
Suddenly：
I, gathers serum of patients with prostate cancer：Whole blood sample in room temperature place 2 hours or 4 DEG C overnight after 1000 × g from
The heart 20 minutes, take supernatant i.e. detectable, the test tube for collecting blood should be disposable apyrogeneity, endotoxin-free test tube.
Before experiment starts, each reagent all should be balanced to room temperature；When reagent or sample preparation, it is both needed to fully mix, and as far as possible
Avoid bubbling.
It is coated with the ELISA ELISA Plates of ACTG1 antibody：The concentration of coated antibody is 1~100 μ g/ml, preferably 10 μ g/ml.
Standard items：ACTG1 2000pg, it is configured to following concentration： 2000、1000、500、250、125、62.5、31.25、
0pg/mL。
Standard items ＆ sample diluting liquids：100ml PBS, BSA 2g are added, to final concentration 2%
The ACTG1 antibody of biotin labeling：0~100 μ g/ml, preferably 10 μ g/ml.
The horseradish peroxidase of Avidin mark：0.0001~0.0005 mg/ml
Cleaning solution:0.05%Tween-20 0.5ml are added in PBS 1000ml.
Substrate solution：TMB (tetramethyl benzidine).
Reaction terminating liquid：2M H2SO4。
II, is loaded：Blank well, gauge orifice, testing sample hole are set respectively.Blank well adds the μ of standard items sample diluting liquid 100
L, remaining hole add standard items or the μ L of testing sample 100 respectively, have been careful not to bubble, and sample is added on into ELISA Plate bottom during sample-adding,
Hole wall is not touched as far as possible, gently rocks mixing.ELISA Plate overlay film is given, 37 DEG C are incubated 90 minutes.
III, discards liquid, dries, without washing.The μ L of ACTG1 antibody 100 of biotin labeling, enzyme are added in each hole
Target adds overlay film, and 37 DEG C incubate 1 hour.
IV, discards liquid in hole, dries, board-washing 3 times, soaks every time 1-2 minutes, and about 350 μ L/ dry per hole
And patted on blotting paper and pat dry liquid in hole.
V, adds the μ L of horseradish peroxidase 100 that Avidin marks per hole, and plus overlay film, 37 DEG C incubate 30 minutes.
VI, discards liquid in hole, dries, board-washing 5 times, method is the same as step IV.
VII, adds the μ L of substrate solution (TMB) 90 per hole, and ELISA Plate is incubated 15 minutes or so plus 37 DEG C of lucifuges of overlay film
（Take the circumstances into consideration to shorten or extend according to actual colour developing situation, but may not exceed 30 minutes.When obvious gradient occurs in gauge orifice, i.e.,
It can terminate）.
VIII, adds the μ L of reaction terminating liquid 50 per hole, and terminating reaction, now blueness is vertical turns yellow.The addition sequence of terminate liquid
It should try one's best identical with the addition sequence of substrate solution.
Ⅸ, uses ELIASA immediately（SPECTRA max plus384）Optical density in each hole of 450nm wavelength measurements（OD
Value）.
Ⅹ, substitutes into equation according to the OD values of standard items and calculates serum sample ACTG1 detected value, and judges itself and judgement
The magnitude relationship of threshold value.
If ACTG1 detected values are more than or equal to decision threshold, judge that patient has progressed to castration-resistant prostate cancer,
Judge that patient does not progress to castration-resistant prostate cancer if ACTG1 detected values are less than decision threshold.Examined with ACTG1 in serum
Measured value is that 78174.25mg/ml ~ 95546.31mg/ml, preferably 86860.28mg/ml is decision threshold.
Embodiment 1
The present embodiment is using ACTG1 detected values 86860.28mg/ml as judgment threshold, if ACTG1 detected values are more than or equal to
During 86860.28mg/ml, then judge that patient has progressed to castration-resistant prostate cancer, if ACTG1 detected values are less than
86860.28mg/ml then judge that patient does not progress to castration-resistant prostate cancer.In 88 samples of the present embodiment, use
The sensitiveness of kit diagnosis castration-resistant prostate cancer of the present invention is 70.5%, and specificity is 75%.
The inspection value of the serum sample of the present embodiment is drawn in Fig. 1, and two groups are compared P<0.05, difference has statistics meaning
Justice.
Fig. 2 is the ROC curves that are diagnosed as castration-resistant prostate cancer of ACTG1, and abscissa is 1- specificities, ordinate
For sensitivity, AUC=0.783, wherein ROC represent TG-AUC.It can be seen that sensitivity reaches 70.5%, specifically
Degree reaches 75%.
It can be seen that detecting the content of ACTG1 in serum of patients with prostate cancer using the present invention, castration can be rapidly and accurately diagnosed
Repellence prostate cancer, there is higher sensitivity and specificity.
Claims (7)
- Purposes of the 1.ACTG1 antibody in preparation is used to detect the ELISA kit of castration-resistant prostate cancer, its feature exist In：The kit includes ACTG1 antibody, is detected using the content of ACTG1 in double-antibodies sandwich ELISA detection serum Castration-resistant prostate cancer, decision threshold are the mg/ml of 78174.25mg/ml ~ 95546.31.
- 2. ACTG1 antibody according to claim 1 is preparing the ELISA reagents for detecting castration-resistant prostate cancer Purposes in box, it is characterised in that：The kit includes the ELISA ELISA Plates, standard items, standard of coating ACTG1 antibody Product ＆ sample diluting liquids, the ACTG1 antibody of biotin labeling, horseradish peroxidase, cleaning solution, the substrate of Avidin mark are molten One or more in liquid, reaction terminating liquid, overlay film.
- 3. ACTG1 antibody according to claim 1 is preparing the ELISA reagents for detecting castration-resistant prostate cancer Purposes in box, it is characterised in that：The application method for being used to detect the ELISA kit of castration-resistant prostate cancer, Comprise the following steps：I, gathers patients with prostate cancer whole blood sample, centrifuging and taking supernatant；II, sets blank well, gauge orifice, testing sample hole respectively, and blank well adds standard items sample diluting liquid, and mark-on is distinguished in remaining hole Quasi- product or testing sample, mix；ELISA Plate adds overlay film, is incubated；III, discards liquid in hole, dries；The ACTG1 antibody of biotin labeling is added per hole, ELISA Plate adds overlay film, incubates；IV, discards liquid in hole, dries, and washs ELISA Plate, then dry；V, adds the horseradish peroxidase of Avidin mark per hole, and ELISA Plate adds overlay film, incubates；VI, discards liquid in hole, dries, and washs ELISA Plate, then dry；VII, adds substrate solution per hole, and ELISA Plate adds overlay film, and lucifuge is incubated；VIII, adds reaction terminating liquid per hole；The OD values in each hole are measured under Ⅸ, 450nm wavelength；Ⅹ, calculates serum sample ACTG1 detected value according to the OD values of standard items, and judges that the size of itself and decision threshold is closed System, the decision threshold are the mg/ml of 78174.25mg/ml ~ 95546.31.
- 4. ACTG1 antibody according to claim 3 is preparing the ELISA reagents for detecting castration-resistant prostate cancer Purposes in box, it is characterised in that：In the step I whole blood sample in room temperature place 0 ~ 4 hour or 0 ~ 8 DEG C overnight after 500 ~ 1500 × g is centrifuged 10 ~ 30 minutes.
- 5. ACTG1 antibody according to claim 3 is preparing the ELISA reagents for detecting castration-resistant prostate cancer Purposes in box, it is characterised in that：ELISA Plate is washed in the step IV 1 ~ 5 time, soak 1-2 minutes every time；Washed in step VI Wash ELISA Plate 3 ~ 7 times, soak 1-2 minutes every time.
- 6. ACTG1 antibody according to claim 5 is preparing the ELISA reagents for detecting castration-resistant prostate cancer Purposes in box, it is characterised in that：ELISA Plate is washed in the step IV 3 times, every time immersion 1.5 minutes；Washed in step VI ELISA Plate 5 times, soak 1.5 minutes every time.
- 7. ACTG1 antibody according to claim 3 is preparing the ELISA reagents for detecting castration-resistant prostate cancer Purposes in box, it is characterised in that：The decision threshold is 86860.28mg/ml.
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| CN111796099B (en) * | 2020-06-03 | 2022-02-11 | 温州医科大学 | Use and kit for preparing diagnostic reagent for differentiating hormone sensitivity and castration resistance of prostate cancer, and method and device thereof |
| CN114184785B (en) * | 2021-11-24 | 2024-01-19 | 武汉尚恩生物技术有限公司 | Kit for identifying cell species based on colloidal gold method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025890A (en) * | 2010-04-06 | 2013-04-03 | 卡里斯生命科学卢森堡控股 | Circulating biomarkers for disease |
| CN104685072A (en) * | 2012-07-27 | 2015-06-03 | 阿拉贡药品公司 | Methods and compositions for determining resistance to androgen receptor therapy |
| CN105779599A (en) * | 2016-04-05 | 2016-07-20 | 上海美吉生物医药科技有限公司 | Kit for detecting metastatic castration resistant prostate cancer (mCRPC) drug resistance |
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| CN101942523B (en) * | 2010-10-15 | 2013-04-03 | 邵棠 | Liquid-phase chip method for detecting PCA3 gene and PSA gene and diagnostic reagent kit thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025890A (en) * | 2010-04-06 | 2013-04-03 | 卡里斯生命科学卢森堡控股 | Circulating biomarkers for disease |
| CN104685072A (en) * | 2012-07-27 | 2015-06-03 | 阿拉贡药品公司 | Methods and compositions for determining resistance to androgen receptor therapy |
| CN105779599A (en) * | 2016-04-05 | 2016-07-20 | 上海美吉生物医药科技有限公司 | Kit for detecting metastatic castration resistant prostate cancer (mCRPC) drug resistance |
Non-Patent Citations (1)
| Title |
|---|
| 去势抵抗型前列腺癌的研究进展;郑路等;《癌症进展》;20150731;第13卷(第4期);364-368,375 * |
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