WO2006047928A1 - Préparation et applications de puces immunodétectrices pour la détection de cellules cancéreuses - Google Patents
Préparation et applications de puces immunodétectrices pour la détection de cellules cancéreuses Download PDFInfo
- Publication number
- WO2006047928A1 WO2006047928A1 PCT/CN2005/001693 CN2005001693W WO2006047928A1 WO 2006047928 A1 WO2006047928 A1 WO 2006047928A1 CN 2005001693 W CN2005001693 W CN 2005001693W WO 2006047928 A1 WO2006047928 A1 WO 2006047928A1
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- WIPO (PCT)
- Prior art keywords
- slide
- solution
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- cells
- cancer
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Classifications
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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
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54353—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals with ligand attached to the carrier via a chemical coupling agent
Definitions
- the invention relates to a method for preparing and detecting a nucleated cell immune chip in a peripheral blood of a human tumor patient, and belongs to the technical field of manufacture and detection of a biochip. Background technique
- Cancer is one of the common diseases that endanger human health. Since the pathogenesis has not been thoroughly explored, there are no specific treatments, especially in the advanced stage. The prognosis of cancer patients is often related to the discovery of cancer sooner or later. Early detection of the use of immunotherapy or surgery can cure. If it is in the middle and late, it is very unfavorable for the prognosis of cancer patients. This shows the importance of early diagnosis of cancer patients. If cancer can be detected early, early diagnosis, most patients get radical cure. However, most of the patients seen in the clinic are not early cancers. Because there are often no special symptoms in the early stages of cancer. Therefore, patients generally do not take the initiative to go to the hospital for examination, and once they feel obvious, the condition is often in the middle and late stages. Therefore, many cancer patients, once found in the middle or late stage, have brought great difficulties to the treatment of patients. If there is a way to diagnose in the early stages of cancer, it will bring hope to patient treatment. It is not an illusion to cure cancer patients in this way.
- pathological diagnosis requires tumor tissue, so it is generally not possible to obtain tumors from early patients. Because it is a biopsy specimen, the specific material and the sliced part are all sampled. Under the light microscope, only a small part of the lesion is seen, and sometimes it cannot fully represent the whole lesion. In addition, whether the pathological diagnosis is reliable or not is also related to the selection of pathological specimens. Sometimes there are false negative results.
- the use of tumor-specific antigens and tumor-associated antibody diagnosis is also a more effective early diagnosis method for the diagnosis of tumors.
- tumors cannot be diagnosed at an early stage because of their limited expression.
- a more effective early diagnosis method for tumor diagnosis using tumor marker tumor-specific antigen and tumor-associated antigen can be detected at low tumor load; and the concentration of markers in blood or other body fluids is directly related to tumor cell load, tumor markers appear in this type of tumor All patients.
- Most tumors can release antigenic macromolecular substances into the blood circulation and can be detected by immunological methods.
- Cancer is caused by genetic, viral infection or some other physicochemical factors. First, it causes normal cells to undergo gene mutation or activation of normal resting genes to express new protein molecules. These proteins can act on cell membranes, and the body has nuclear cell membranes. Corresponding changes will also occur, especially in the blood, the life cycle of nucleated cells is short, the cell membrane is affected, and it is easily recognized by some immune cells in the body. After the new protein is released into the body fluid, these proteins may be some immune cells of the body. Identification, specific antigen presenting cells recognize and present to lymphocytes to produce antibodies. It can be seen that the nucleated cell membrane in the blood changes early in the early stage of cancer. How to find and grasp this change in time is a key to the early diagnosis of tumor.
- the method has the advantages of high accuracy and convenient use, and has great significance for early diagnosis of tumors and timely treatment of tumor patients.
- the preparation method of the tumor immune cell detecting chip of the invention is:
- chemical modification is carried out on the carrier, that is, the amino group and the aldehyde group are modified to ensure that the chemical group on the carrier can react with the antibody to bind to the carrier, and can maintain the immunological activity of the antibody bound to the carrier;
- the above-mentioned antibodies on the slides modified with chemical groups such as: lung cancer, liver cancer, gastric cancer and other tumors, and new protein antibodies expressed by gene mutations such as skeletal tumor leukemia, are placed at 0 ° C—
- the chemical modification on the carrier that is, the modification of the amino group, the aldehyde group is as follows:
- a. Slide cleaning Take the slide glass and wash it with water, soak it in a solution consisting of hydrogen peroxide and concentrated sulfuric acid, then rinse it with deionized water or distilled water, boil it, dry it under nitrogen flow, and keep it for use;
- Aminosiliconization on the surface of the slide The cleaned slide is immersed in a solution containing 0.1-10.0% aminopropyltrimethoxysilane "3-aminopropyltriethoxysilane" in 95% acetone/water for 3-30 minutes. After taking out, the slides are washed successively with acetone and deionized distilled water, and finally dried and stored;
- PB solution phosphate buffer
- glutaraldehyde 1%-10% glutaraldehyde
- the solution is washed, then rinsed with deionized distilled water, dried with nitrogen, and stored for later use;
- preparation of agarose film on the surface of the slide according to the ratio of 0.5-3.0g agarose to 100ml of double distilled water to form agarose solution, completely mixed and boil; cover the agarose solution in preheated aminosilicon ⁇ modified glass slide; after the agarose solidifies, the slide is dried and stored;
- calf serum albumin-N-hydroxysuccinimide (BSA-NHS) modification on the surface of the slide 1.76 g of N-N'-disuccinimidyl carbonate, with 1 to 5 ml of NN, -2
- the ratio of isopropylethylamine was dissolved in 65-69 ml of anhydrous dimethylformamide "DMF”, and the slide was placed in the solution; rinsed with ethanol; the slide was immersed in 0.2-5 % calf serum albumin in PBS solution at room temperature; rinse with deionized water and then with ethanol; remove residual solvent, then immerse in anhydrous dimethylformamide "DMF” solution, leave at room temperature, dry and preserve :
- the detection method is: adding the white blood cells or lymphocyte separation liquid to the peripheral blood containing the anticoagulant, removing the red blood cells to obtain the nucleated cells in the blood, and suspending the nucleated cells in the PBS or other isotonic solution with the human body, Then, the suspended cells in the solution are added to the tumor immune cell detection chip, placed in an environment of 2 ° C - 55 ° C for 0.1 _ 72 h; the carrier is taken out, with a pH of 4.0-12, the ion concentration of 0.001-1.100 M solution will not The free nucleated cells bound by the antibody on the carrier are washed away; then, the cells are stained on a microscope or CCD or the cells are stained to observe the binding of the cells at each point, that is, the detection is performed.
- the immune cell chip of the present invention is characterized in that a chemical group is modified on a carrier, and a tumor-associated marker antibody is modified on the carrier, and a specific protein on the surface of the nuclear cell membrane in the blood of the cancer is combined with an antibody on the chip, according to The presence or absence of cells at each point can be used to determine the presence or absence of tumors and tumors.
- the carrier of the present invention may be a high molecular polymer, or may be a slide glass or the like, and may be repaired on the carrier. Decorated with amino and aldehyde groups.
- the method of the present invention is in vitro detection, it does not have any other harm to the human body except for collecting peripheral blood, and can be detected before the solid tumor is formed, and the accuracy is high. Easy to use, it is of great significance for the early diagnosis of tumors and for the timely treatment of cancer patients. detailed description
- the preparation method of the tumor immune cell detecting chip of the invention is as follows: First, chemical modification is performed on the carrier, that is, the amino group and the aldehyde group are modified to ensure that the chemical gene on the carrier can react with the antibody to bind to the carrier, and can maintain The immunological activity of the antibody bound to the carrier; and then the corresponding antibody is spotted on the slide with the chemical gene modified above, such as: lung cancer, liver cancer, gastric cancer and the like, and new protein antibodies expressed by gene mutations such as skeletal tumor leukemia Store in O'C—55 ⁇ in a humid environment for 0.1-72 hours, remove the slide, and wash with a buffer of pH 4.0-10, ion concentration 0.00-0.75m/L.
- the specific steps are as follows:
- Chip production
- the slides were washed with water, placed in a solution consisting of 1/3 hydrogen peroxide and 2/3 concentrated sulfuric acid, and immersed for 0.5-3.0 hours. Then rinse with ionic or distilled water for 2-4 times, then boil with deionized water or distilled water for 2-30 minutes; dry under nitrogen flow and store in a dry place.
- the cleaned slide is immersed in a solution containing 0.1-10.0% of aminopropyltriethoxysilane in 95% acetone/water for 30-30 minutes. After taking out, the slide is washed with acetone for 2-4 times. Each time for 1 to 5 minutes, rinse with deionized distilled water for 1 to 5 times, each time for 1 to 5 minutes, and finally dry at 60-180 ° C, and store in a dry place.
- the siliconized wafer is placed in a PB solution (0.001 - 0.150M PH4.5 - 11.0) containing 1% - 10% glutaraldehyde, soaked at room temperature for 0.1-10 hours, and then taken out with PB ( 0.001 - 0.150 M pH 4.5 - 11.0) Wash 2-6 times, then rinse 3 times with deionized distilled water, blow dry with nitrogen, and store at 4 ° C for later use. (3) Poly-lysine modification on the surface of the slide
- agarose 0.5-3.0g is added to 100ml of double distilled water to form agarose solution, completely mixed in a microwave oven and boiled for 2-10 minutes;
- the slide is dried overnight at 10 to 120 °C. It can be stored under room temperature and dry conditions;
- the agarose membrane should be immersed in 0.1-100 mM NaI04 solution, left at room temperature for 0.05-6.00 hours, rinsed thoroughly with double distilled water, dried with nitrogen, and dried at room temperature or low temperature.
- the corresponding antibody (a new protein antibody expressed by a gene mutation such as a lung cancer, a liver cancer, a gastric cancer, or a skeletal tumor leukemia) is manually or by a spotting instrument. Place in a humidified environment (put the carrier in a humid box) for 0.1-72 hours, remove the carrier, and wash it for 1 to 5 times with a buffer solution of pH 4.0-10, ion concentration 0.00-0.75 m/L. . To remove unbound antibody on the carrier. The prepared chip is dried and stored in the dark.
- Human peripheral blood and leukocyte separation fluid or lymphocytes containing anticoagulant at a ratio of 1 to 1 by volume Separate the solution, centrifuge 500-3000 rpm to remove red blood cells in the blood, then suspend the nucleated cells in the buffer, and centrifuge the cells at 500-4000 rpm to remove the leukocyte separation solution or lymphocyte separation solution from the supernatant.
- the precipitated nucleated cells were suspended in a buffer to prepare a nucleated cell suspension.
- the prepared chip Take out the prepared chip, add the appropriate amount of the separated nucleated cell suspension, and place it at 2 ⁇ —60°C for 0.1-72 hours.
- the cell suspension should not be dry. Always keep the cells in the liquid and remove them. Rinse with buffer to remove unbound free cells. The cells are then observed or stained on a microscope or CCD to observe the binding of the cells to each point to determine if the patient has a tumor and what kind of tumor.
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- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
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- Hematology (AREA)
- Urology & Nephrology (AREA)
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- Physics & Mathematics (AREA)
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- Biochemistry (AREA)
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Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410065235.5 | 2004-11-03 | ||
| CN 200410065235 CN1619310A (zh) | 2004-11-03 | 2004-11-03 | 肿瘤免疫细胞检测芯片的制备和检测方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006047928A1 true WO2006047928A1 (fr) | 2006-05-11 |
Family
ID=34764650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2005/001693 Ceased WO2006047928A1 (fr) | 2004-11-03 | 2005-10-17 | Préparation et applications de puces immunodétectrices pour la détection de cellules cancéreuses |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1619310A (zh) |
| WO (1) | WO2006047928A1 (zh) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470520A (zh) * | 2019-09-16 | 2019-11-19 | 武汉赛维尔生物科技有限公司 | 一种彗星实验中的换液方法 |
| CN111323595A (zh) * | 2020-03-11 | 2020-06-23 | 江苏省肿瘤医院 | 一种基于胶体晶体微球的多元可视化病理切片检查方法 |
| CN112326755A (zh) * | 2020-11-23 | 2021-02-05 | 济南大学 | 基于hrp扩增用于检测肺癌标志物cyfra21-1光电免疫传感器的制备方法 |
| CN114062674A (zh) * | 2020-07-30 | 2022-02-18 | 广州天源高新科技有限公司 | 一种蛋白质芯片技术检测肺癌免疫检查点检测试剂盒 |
| CN114113051A (zh) * | 2021-12-16 | 2022-03-01 | 南京信息工程大学 | 一种psma电致化学发光传感器的制备方法及应用 |
| CN115047195A (zh) * | 2022-03-21 | 2022-09-13 | 深圳市赛尔生物技术有限公司 | 一种检测细胞反应中蛋白表达的微阵列芯片以及制备方法 |
| WO2023039862A1 (zh) * | 2021-09-17 | 2023-03-23 | 绿城农科检测技术有限公司 | 一种基于树枝状大分子对固相载体的改性方法 |
| CN116819080A (zh) * | 2023-07-28 | 2023-09-29 | 内蒙古民族大学 | 一种免分离的血浆中肿瘤来源细胞外囊泡检测方法 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101957378A (zh) * | 2009-07-13 | 2011-01-26 | 上海汇中细胞生物科技有限公司 | Cd4细胞芯片及其制备方法和应用 |
| CN101955320A (zh) * | 2010-08-30 | 2011-01-26 | 南京卡博生物科技有限公司 | 一种液基细胞学诊断用玻片的修饰方法 |
| CN105349403B (zh) * | 2015-11-19 | 2018-11-06 | 北京科技大学 | 一种带电荷纳米结构细胞芯片的制备及应用方法 |
| CN109900895A (zh) * | 2017-12-11 | 2019-06-18 | 北京和杰创新生物医学科技有限公司 | 细胞爬片用玻璃薄片表面的粘附处理方法 |
| CN113125762A (zh) * | 2019-12-31 | 2021-07-16 | 瑞博奥(广州)生物科技股份有限公司 | 一种检测女性恶性肿瘤标志物的检测芯片及其制备方法和应用 |
| CN112098642A (zh) * | 2020-02-13 | 2020-12-18 | 普众发现医药科技(上海)有限公司 | 一种基于高通量抗体芯片的活细胞筛选方法 |
| CN111266141B (zh) * | 2020-03-19 | 2022-07-08 | 京东方科技集团股份有限公司 | 一种检测芯片及其修饰方法 |
| CN112505017B (zh) * | 2020-11-19 | 2023-07-25 | 福建师范大学 | 一种基于sers技术检测血液中il-6的方法 |
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| US5034516A (en) * | 1987-08-04 | 1991-07-23 | University Of Ottawa | Synthetic antigens of sialic acid and derivatives thereof |
| WO1996012192A1 (en) * | 1994-10-18 | 1996-04-25 | Amdl, Inc. | Antibodies against an extracellular matrix complex and their use in the detection of cancer |
| WO2001065261A1 (en) * | 2000-02-29 | 2001-09-07 | Sloan-Kettering Institute For Cancer Research | Affinity matrix bearing tumor-associated antigens |
| CN1338634A (zh) * | 2001-09-29 | 2002-03-06 | 上海晶泰生物技术有限公司 | 恶性肿瘤早期诊断的蛋白芯片 |
-
2004
- 2004-11-03 CN CN 200410065235 patent/CN1619310A/zh active Pending
-
2005
- 2005-10-17 WO PCT/CN2005/001693 patent/WO2006047928A1/zh not_active Ceased
Patent Citations (4)
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|---|---|---|---|---|
| US5034516A (en) * | 1987-08-04 | 1991-07-23 | University Of Ottawa | Synthetic antigens of sialic acid and derivatives thereof |
| WO1996012192A1 (en) * | 1994-10-18 | 1996-04-25 | Amdl, Inc. | Antibodies against an extracellular matrix complex and their use in the detection of cancer |
| WO2001065261A1 (en) * | 2000-02-29 | 2001-09-07 | Sloan-Kettering Institute For Cancer Research | Affinity matrix bearing tumor-associated antigens |
| CN1338634A (zh) * | 2001-09-29 | 2002-03-06 | 上海晶泰生物技术有限公司 | 恶性肿瘤早期诊断的蛋白芯片 |
Non-Patent Citations (1)
| Title |
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| WANG Y. ET AL: "Preparation and application of protein microarray for CD series antibodies", ACTA ACADEMIAE MILITARIS TERTIAE, vol. 24, no. 1, January 2002 (2002-01-01), pages 43 - 44 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470520A (zh) * | 2019-09-16 | 2019-11-19 | 武汉赛维尔生物科技有限公司 | 一种彗星实验中的换液方法 |
| CN111323595A (zh) * | 2020-03-11 | 2020-06-23 | 江苏省肿瘤医院 | 一种基于胶体晶体微球的多元可视化病理切片检查方法 |
| CN111323595B (zh) * | 2020-03-11 | 2023-12-01 | 江苏省肿瘤医院 | 一种基于胶体晶体微球的多元可视化病理切片检查方法 |
| CN114062674A (zh) * | 2020-07-30 | 2022-02-18 | 广州天源高新科技有限公司 | 一种蛋白质芯片技术检测肺癌免疫检查点检测试剂盒 |
| CN112326755A (zh) * | 2020-11-23 | 2021-02-05 | 济南大学 | 基于hrp扩增用于检测肺癌标志物cyfra21-1光电免疫传感器的制备方法 |
| WO2023039862A1 (zh) * | 2021-09-17 | 2023-03-23 | 绿城农科检测技术有限公司 | 一种基于树枝状大分子对固相载体的改性方法 |
| CN114113051A (zh) * | 2021-12-16 | 2022-03-01 | 南京信息工程大学 | 一种psma电致化学发光传感器的制备方法及应用 |
| CN114113051B (zh) * | 2021-12-16 | 2023-06-16 | 南京信息工程大学 | 一种psma电致化学发光传感器的制备方法及应用 |
| CN115047195A (zh) * | 2022-03-21 | 2022-09-13 | 深圳市赛尔生物技术有限公司 | 一种检测细胞反应中蛋白表达的微阵列芯片以及制备方法 |
| CN116819080A (zh) * | 2023-07-28 | 2023-09-29 | 内蒙古民族大学 | 一种免分离的血浆中肿瘤来源细胞外囊泡检测方法 |
Also Published As
| Publication number | Publication date |
|---|---|
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