CN112630436A - 一种定量检测tex101浓度的荧光试剂条的制备方法及其应用 - Google Patents
一种定量检测tex101浓度的荧光试剂条的制备方法及其应用 Download PDFInfo
- Publication number
- CN112630436A CN112630436A CN202110094094.3A CN202110094094A CN112630436A CN 112630436 A CN112630436 A CN 112630436A CN 202110094094 A CN202110094094 A CN 202110094094A CN 112630436 A CN112630436 A CN 112630436A
- Authority
- CN
- China
- Prior art keywords
- tex101
- concentration
- fluorescent
- avidin
- monoclonal antibody
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 101000795918 Homo sapiens Testis-expressed protein 101 Proteins 0.000 title claims abstract description 62
- 102100031738 Testis-expressed protein 101 Human genes 0.000 title claims abstract description 62
- 239000003153 chemical reaction reagent Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 48
- 239000004005 microsphere Substances 0.000 claims abstract description 40
- 239000011248 coating agent Substances 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 238000012360 testing method Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000003908 quality control method Methods 0.000 claims description 24
- 238000005507 spraying Methods 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 15
- 108090001008 Avidin Proteins 0.000 claims description 14
- 241000283973 Oryctolagus cuniculus Species 0.000 claims description 13
- 239000002244 precipitate Substances 0.000 claims description 11
- 239000005018 casein Substances 0.000 claims description 9
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 claims description 9
- 235000021240 caseins Nutrition 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 238000010790 dilution Methods 0.000 claims description 7
- 239000012895 dilution Substances 0.000 claims description 7
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 6
- 229920001213 Polysorbate 20 Polymers 0.000 claims description 6
- 239000002250 absorbent Substances 0.000 claims description 6
- 230000002745 absorbent Effects 0.000 claims description 6
- 150000001718 carbodiimides Chemical class 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 claims description 6
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000008055 phosphate buffer solution Substances 0.000 claims description 5
- 235000018102 proteins Nutrition 0.000 claims description 5
- 102000004169 proteins and genes Human genes 0.000 claims description 5
- 108090000623 proteins and genes Proteins 0.000 claims description 5
- 239000007853 buffer solution Substances 0.000 claims description 4
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims description 4
- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 claims description 3
- 229920002538 Polyethylene Glycol 20000 Polymers 0.000 claims description 3
- 229930006000 Sucrose Natural products 0.000 claims description 3
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 3
- 239000007983 Tris buffer Substances 0.000 claims description 3
- 210000003743 erythrocyte Anatomy 0.000 claims description 3
- 239000003761 preservation solution Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 239000005720 sucrose Substances 0.000 claims description 3
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- 239000000872 buffer Substances 0.000 claims description 2
- 230000005284 excitation Effects 0.000 claims description 2
- 239000003550 marker Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 229960002317 succinimide Drugs 0.000 claims description 2
- 239000000427 antigen Substances 0.000 abstract description 6
- 102000036639 antigens Human genes 0.000 abstract description 6
- 108091007433 antigens Proteins 0.000 abstract description 6
- 238000010166 immunofluorescence Methods 0.000 abstract description 5
- 238000004587 chromatography analysis Methods 0.000 abstract description 4
- 238000003317 immunochromatography Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000338 in vitro Methods 0.000 abstract description 2
- 210000000582 semen Anatomy 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 3
- 206010003883 azoospermia Diseases 0.000 description 15
- 230000000414 obstructive effect Effects 0.000 description 11
- NQTADLQHYWFPDB-UHFFFAOYSA-N N-Hydroxysuccinimide Chemical compound ON1C(=O)CCC1=O NQTADLQHYWFPDB-UHFFFAOYSA-N 0.000 description 2
- MUMGGOZAMZWBJJ-DYKIIFRCSA-N Testostosterone Chemical compound O=C1CC[C@]2(C)[C@H]3CC[C@](C)([C@H](CC4)O)[C@@H]4[C@@H]3CCC2=C1 MUMGGOZAMZWBJJ-DYKIIFRCSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000035558 fertility Effects 0.000 description 2
- 229930004094 glycosylphosphatidylinositol Natural products 0.000 description 2
- 239000003163 gonadal steroid hormone Substances 0.000 description 2
- 238000009612 semen analysis Methods 0.000 description 2
- ZMYKITJYWFYRFJ-UHFFFAOYSA-N 4-oxo-4-(2-phenylethylamino)butanoic acid Chemical compound OC(=O)CCC(=O)NCCC1=CC=CC=C1 ZMYKITJYWFYRFJ-UHFFFAOYSA-N 0.000 description 1
- 108090000288 Glycoproteins Proteins 0.000 description 1
- 102000003886 Glycoproteins Human genes 0.000 description 1
- 208000007466 Male Infertility Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 238000001917 fluorescence detection Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 108010067479 inhibin B Proteins 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000101 novel biomarker Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- 239000013558 reference substance Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000405 serological effect Effects 0.000 description 1
- 210000000130 stem cell Anatomy 0.000 description 1
- 210000001550 testis Anatomy 0.000 description 1
- 229960003604 testosterone Drugs 0.000 description 1
Images
Classifications
-
- 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
- G01N33/577—Immunoassay; Biospecific binding assay; Materials therefor involving monoclonal antibodies binding reaction mechanisms characterised by the use of monoclonal antibodies; monoclonal antibodies per se are classified with their corresponding antigens
-
- 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
- G01N33/531—Production of immunochemical test materials
- G01N33/532—Production of labelled immunochemicals
- G01N33/533—Production of labelled immunochemicals with fluorescent label
-
- 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
- G01N33/54313—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being characterised by its particulate form
-
- 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
- G01N33/558—Immunoassay; Biospecific binding assay; Materials therefor using diffusion or migration of antigen or antibody
-
- 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
- G01N33/689—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids related to pregnancy or the gonads
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2800/00—Detection or diagnosis of diseases
- G01N2800/36—Gynecology or obstetrics
- G01N2800/367—Infertility, e.g. sperm disorder, ovulatory dysfunction
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Urology & Nephrology (AREA)
- Food Science & Technology (AREA)
- General Physics & Mathematics (AREA)
- Cell Biology (AREA)
- Biotechnology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Pathology (AREA)
- Gynecology & Obstetrics (AREA)
- Pregnancy & Childbirth (AREA)
- Reproductive Health (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
本发明公开了一种定量检测TEX101浓度的荧光试剂条的制备方法及其应用,属于体外诊断试剂领域,本发明将荧光免疫层析技术引入TEX101的检测中,制备所得的TEX101的免疫层析试纸条的采用双抗体夹心法,样本垫中的TEX101抗原在层析作用下与标记垫上荧光微球标记的TEX101抗体结合形成复合物,该复合物在层析作用下移动至包被膜的检测线,由于包被膜检测线上包被有识别TEX101抗原的另一表位的抗体,形成双抗体夹心复合物;可检测精液样本中TEX101的浓度,通过免疫荧光分析仪即可得读取检测结果,无需专业操作人员,实现了TEX101的单人份定量检测,具有方便快捷、操作简单、灵敏度高、操作简单、检测成本低等优点。
Description
技术领域
本发明涉及体外诊断试剂领域,具体涉及一种定量检测TEX101浓度的荧光试剂条的制备方法及其应用。
背景技术
无精子症是指在射精过程中完全没有精子,它占男性不育病例的10〜15%,占所有无精子症病例的60%,无精子症分为阻塞性无精子症OA和非阻塞性无精子症NOA,阻塞性无精子症OA和非阻塞性无精子症NOA的治疗对应不同的治疗方法。
目前临床上精子质量的评估主要采用:精液分析和性激素血清学检测。精液分析是最常用的检测方法,但是其分析结果受主观因素影响、精密度低、重复性差,对男性生育力评估和临床应用的价值有限;而性激素血清学检测如FSH、睾酮、抑制素B等则无法预测男性辅助生殖PESA/TESE的结果;并且以上两类检测方法都无法区分梗阻性无精症OA和非梗阻性无精症NOA,无法对症治疗,因此,临床上迫切需要新型的生物标记物,用于客观评估男性生育力,鉴别梗阻性无精症OA和非梗阻性无精症NOA,预测辅助生殖的结局。
发明内容
本发明的目的在于针对现有技术中存在的不足和局限,提供一种操作简单、方便快捷、经济、测定准确的TEX101检测试纸条制备方法及其应用。
本发明的技术方案是:一种定量检测TEX101浓度的荧光试剂条的制备方法,该试剂条包括顺次衔接于PVC底板的样品垫、标记垫、包被膜、吸水纸;
标记垫上喷涂有荧光微球标记的第一TEX101单克隆抗体和荧光微球标记的亲和素;
包被膜包含检测线和质控线:检测线与质控线之间的间隔为4〜8nm,所述检测线包被有与所述荧光微球标记的第一TEX101单克隆抗体处于不同表位的第二TEX101单克隆抗体,质控线包被有特异性识别亲和素的兔抗亲和素抗体。
进一步的技术方案,荧光微球标记的第一TEX101单克隆抗体的浓度为0.1〜1.0mg/mL,稀释比例为5%〜20%;所述荧光微球标记的亲和素的浓度为0.1〜1.0mg/mL,稀释比例为0.5%〜5%。
进一步的技术方案,含荧光微球标记的第一TEX101单克隆抗体和荧光微球标记的亲和素的标记垫处理液的喷量为3〜6 μL/cm。
进一步的技术方案,荧光微球的粒径为100〜500nm;所述荧光微球的激发波长为310〜550nm,发射波长为340〜620nm。
进一步的技术方案,检测线上包被的第二TEX101单克隆抗体的浓度为0.5〜2 mg/mL,喷量 0.1〜0.2μL/cm;所述质控线上包被的兔抗亲和素抗体的浓度为0.5〜2 mg/mL,喷量为0.1〜1.0L/mm。
一种用于制备定量检测TEX101浓度的荧光试剂条的制备方法,包括以下步骤:
(1)制备荧光微球标记蛋白:取一定量的荧光微球,10000〜15000 rpm第一次离心5〜15分钟,第一次离心分离得到的沉淀物用pH为6.0〜7.0的10〜100 mM磷酸盐缓冲液调节至浓度为0.1%〜1%,并超声分散;加入终浓度为0.1〜5 mg/mL的碳二亚胺(EDC),混匀,再加入终浓度为0.1〜5 mg/mL的N-轻基琥珀酰亚胺(NHS),混匀;室温孵育20〜40分钟后10000〜15000 rpm第二次离心5〜15分钟,第二次离心分离得到的沉淀物用pH为6.0〜7.0的10〜100mM磷酸盐缓冲液溶解;
将复溶后的荧光微球超声分散,分为两管并按照含0.1〜1.0 mg/mL荧光微球的比例分别加入第一TEX101单克隆抗体和亲和素,混匀后室温旋转混合反应1.5〜3小时,10000〜15000 rpm第三次离心5〜15分钟,第三次离心分离得到的沉淀物用含10〜40 mM乙醇胺和0.05%〜1%酪蛋白的Tris〜HCl(10〜40mM,pH为7.0〜8.0)复溶,超声分散后旋转混合反应0.5〜1小时;10000〜15000 rpm第四次离心5〜I5分钟,第四次离心分离得到的沉淀物用微球保存液复溶,2〜8℃保存;
(2)预处理样品垫:将样品垫用封闭液浸泡5分钟后,置于湿度小于20%、温度在40〜50℃的烘箱中,烘箱干燥12〜24 小时后于将样品垫放置于2〜30℃的环境中密封保存;其中,封闭液为含0.1〜1%的Tris、0.1〜1%的Tween20、0.1〜1%的酪蛋白、0.1〜2% 的PEG20000、0.005〜0.05%的鼠抗人红细胞;
(3)制备标记垫:将荧光微球标记的第一TEX101单克隆抗体和荧光微球标记的亲和素分别按5%〜20%和0.5%〜5%的稀释比例用标记垫处理液喷涂在标记垫上,喷量为3〜6uL/cm;所述标记垫处理液中含有 0.2〜2%的酪蛋白、5%〜20%的蔗糖、0.1〜1%的Tween-20、0.1〜0.5%的PVP40、0.02〜0.05%的Proclin300、0.01 〜0.05M、7.4的PBS缓冲液;将制备好的标记垫置于湿度小于20%、温度为40〜50℃的烘箱中,烘箱干燥12〜24 h后将标记垫放置于2〜30℃的环境中密封保存;
(4)制备包被膜:分别将检测线包被的第二TEX101单克隆抗体和质控线包被的兔抗亲和素用包被缓冲液调节浓度为0.5〜2 mg/mL,将第二TEX101单克隆抗体喷到包被膜上的检测线,将兔抗亲和素抗体喷到包被膜上的质控线,第二TEX101单克隆抗体和兔抗亲和素抗体的用量按膜包被液量均为0.1〜0.2μL/mm,检测线和质控线间隔4〜8 mm,将包被膜放置于湿度小于20%、温度为40〜50℃的烘箱中,烘箱干燥24〜72 小时后将包被膜放置于2〜30℃的环境中密封保存,备用;
(5)制备试纸条:在PVC底板上顺次相互搭接地黏贴样品垫、标记垫、包被膜和吸水纸得到试纸板,按照切割要求将试纸板切割成3〜4 mm宽度的试纸条。
进一步的技术方案,定量检测TEX101浓度的荧光试剂条的制备方法在精液TEX101的浓度检测中的应用。
本发明的有益效果:
睾丸表达蛋白101(TEX101),一种细胞特异性糖蛋白,以糖基磷脂酰肌醇(GPI)锚定蛋白的形式存在干细胞表面。研究表明通过TEX101浓度这一单一指标的检测能够同时鉴别梗阻性无精症OA和非梗阻性无精症NOA,本发明将荧光免疫层析技术引入TEX101的检测中,可检测精液样本中TEX101的浓度,通过免疫荧光分析仪即可得读取检测结果,无需专业操作人员,实现了TEX101的单人份定量检测,具有方便快捷、操作简单、灵敏度高、操作简单、检测成本低等优点。
附图说明
图1为本发明结构示意图,
其中,1、样品垫,2、标记垫,3、包被膜,4、吸水纸,5、检测线,6、质控线,7、PVC底板。
具体实施方式
下面通过非限制性实施例,进一步阐述本发明,理解本发明。
本发明提供了一种定量检测TEX101浓度的荧光试剂条的制备方法,具体制备方法如下:
(1)制备荧光微球标记蛋白:取0.lmL10%的荧光微球,15000 rpm第一次离心15分钟,沉淀物用pH 6.5的50 mM磷酸盐缓冲液调节浓度为1%,并超声分散;加入终浓度为2 mg/mL的碳二亚胺(EDC),混匀,再加入终浓度为5 mg/mL的N-羟基琥珀酰亚胺(NHS),混匀;室温孵育20分钟后15000 rpm第二次离心15分钟,沉淀物用pH 6.5的50 mM磷酸盐缓冲液溶解;
将复溶后的焚光微球超声分散,并分两管分别加入0.2 mg的第一TEX101单克隆抗体和0.1mg的亲和素,混匀后室温旋转混合反应2小时,15000 rpm第三次离心15分钟,第三次离心得到的沉淀物用含30 mM乙醇胺和0.5%酪蛋白的Tris〜HCl (20 mM,pH 8.0)复溶,超声分散后旋转混合反应1小时,15000 rpm第四次离心15分钟,沉淀用微球保存液复溶,2〜8℃保存;
(2)预处理样品垫1:将样品垫1用封闭液浸泡5分钟后,置于湿度小于20%的50℃的烘箱,干燥12 h后于20〜30℃的环境中TC密封保存;其中,封闭液含0.1%的Tris、1%的Tween20、0.5%的酪蛋白、1%的PEG20000、0.01%的鼠抗人红细胞;
(3)制备标记垫2:将荧光微球标记的第一TEX101单克隆抗体和荧光微球标记的亲和素分别按10%和1%的稀释比例用标记垫2处理液喷涂在标记垫2上,喷量为4 uL/cm,标记垫2处理液中含有0.5%的酪蛋白、5%的蔗糖、1%的Tween-20、0. 5%的PVP40、0. 03%的Proclin300、pH为7.4的0.05M的PBS缓冲液;将制备好的标记垫2置于湿度小于20%的50℃烘箱中,干燥24 h后放置于于20〜30℃环境中密封保存;
(4)制备包被膜3:包被膜3上设置有检测线5与质控线6,检测线5与质控线6之间的间隔为4〜8nm,分别将检测线5包被的第二TEX101单克隆抗体和质控线6包被的兔抗亲和素用包被缓冲液调节浓度为1.0 mg/mL,将第二TEX101单克隆抗体喷到包被膜3上的检测线5,将兔抗亲和素喷到包被膜3上的质控线6,第二TEX101单克隆抗体和兔抗亲和素的用量按膜包被液量均为0.1μL/mm,检测线5和质控线6之间间隔4 mm,将包被膜3放置于湿度小于20%的50℃烘箱,干燥72 h后将包被膜3放置于20〜30℃环境中密封保存备用;
(5)制备试纸条:如图1所示,在PVC底板7上顺次相互搭接地黏贴样品垫1、标记垫2、包被膜3和吸水纸4得到试纸板,按照切割要求将试纸板切割成3〜4 mm宽度的试纸条。
本发明提供的荧光试剂条用于定量检测TEX101浓度的具体工作过程如下:
(1)绘制标准曲线:将TEX101抗原用阴性血配制成25 ng/mL、10 ng/mL、5 ng/mL、1.0 ng/mL、0.5 ng/mL、 0.1 ng/mL、0 ng/mL,采用用同一批次的试纸和试剂,每个浓度点测试6次;利用免疫荧光分析仪,获取检测线5和质控线6的荧光强度数据,分析数据,以检测线5(T带)、质控线6(C 带)的荧光强度比值为纵坐标,TEX101参考品浓度为横坐标,建立方程并拟合成标准曲线,将标准曲线信息用烧录软件写到ID芯片中;
(2)样品的检测:从试剂盒中取出检测条,撕开铝箔袋包装后,平放检测条,平衡5分钟,取100 uL样本加入加样孔中,室温避光反应15分钟;将ID芯片插入免疫荧光分析仪,将检测卡插入免疫荧光分析仪插卡口,点击“测试”,仪器通过分析软件自动计算出待测样本中TEX101的浓度。
综上所述,本发明中提供的TEX101的免疫层析试纸条的采用双抗体夹心法,样本垫中的TEX101抗原在层析作用下与标记垫2上荧光微球标记的TEX101抗体结合形成复合物,该复合物在层析作用下移动至包被膜3的检测线5,由于包被膜3检测线5上包被有识别TEX101抗原的另一表位的抗体,形成双抗体夹心复合物。复合物聚集在包被膜3的检测线5处,受到光源激发释放出相应波长的发射光,样本中抗原浓度越高,检测线5发射光的强度越高。本发明通过荧光检测系统将光信号转化为数字信号,以浓度点为横坐标,检测线5信号值比质控线6信号值(T/C)为纵坐标绘制标准曲线,从而可准确定量的计算出样本中TEX101的浓度;本发明与现有技术相比,有如下优点:本发明检测线5和质控线6采用独立的反应系统,互不干扰和影响,并采用T/C值的方式进行定标,保证了测试结果的准确度。
Claims (7)
1.一种定量检测TEX101浓度的荧光试剂条的制备方法,其特征在于:所述试剂条包括顺次衔接于PVC底板的样品垫、标记垫、包被膜、吸水纸;
所述标记垫上喷涂有荧光微球标记的第一TEX101单克隆抗体和荧光微球标记的亲和素;
所述包被膜包含检测线和质控线:检测线与质控线之间的间隔为4〜8nm,所述检测线包被有与所述荧光微球标记的第一TEX101单克隆抗体处于不同表位的第二TEX101单克隆抗体,所述质控线包被有特异性识别亲和素的兔抗亲和素抗体。
2.根据权利要求1所述的一种定量检测TEX101浓度的荧光试剂条的制备方法,其特征在于:所述荧光微球标记的第一TEX101单克隆抗体的浓度为0.1〜1.0mg/mL,稀释比例为5%〜20%;所述荧光微球标记的亲和素的浓度为0.1〜1.0mg/mL,稀释比例为0.5%〜5%。
3.根据权利要求2所述的一种定量检测TEX101浓度的荧光试剂条的制备方法,其特征在于:所述含荧光微球标记的第一TEX101单克隆抗体和荧光微球标记的亲和素的标记垫处理液的喷量为3〜6μL/cm。
4.根据权利要求1所述的一种定量检测TEX101浓度的荧光试剂条的制备方法,其特征在于:所述荧光微球的粒径为100〜500nm;所述荧光微球的激发波长为310〜550nm,发射波长为340〜620nm。
5.根据权利要求1所述的一种定量检测TEX101浓度的荧光试剂条的制备方法,其特征在于:所述检测线上包被的第二TEX101单克隆抗体的浓度为0.5〜2 mg/mL,喷量 0.1〜0.2μL/cm;所述质控线上包被的兔抗亲和素抗体的浓度为0.5〜2 mg/mL,喷量为0.1〜1.0L/mm。
6.根据权利要求1所述的一种定量检测TEX101浓度的荧光试剂条的制备方法,其特征在于:包括以下步骤:
(1)制备荧光微球标记蛋白:取一定量的荧光微球,10000〜15000 rpm第一次离心5〜15分钟,第一次离心分离得到的沉淀物用pH为6.0〜7.0的10〜100 mM磷酸盐缓冲液调节至浓度为0.1%〜1%,并超声分散;加入终浓度为0.1〜5 mg/mL的碳二亚胺(EDC),混匀,再加入终浓度为0.1〜5 mg/mL的N-轻基琥珀酰亚胺(NHS),混匀;室温孵育20〜40分钟后10000〜15000 rpm第二次离心5〜15分钟,第二次离心分离得到的沉淀物用pH值6.0〜7.0的10〜100mM磷酸盐缓冲液溶解;
将复溶后的荧光微球超声分散,分为两管并按照含0.1〜1.0 mg/mL荧光微球的比例分别加入第一TEX101单克隆抗体和亲和素,混匀后室温旋转混合反应1.5〜3小时,10000〜15000 rpm第三次离心5〜15分钟,第三次离心分离得到的沉淀物用含10〜40 mM乙醇胺和0.05%〜1%酪蛋白的Tris〜HCl(10〜40mM,pH值7.0〜8.0)复溶,超声分散后旋转混合反应0.5〜1小时;10000〜15000 rpm第四次离心5〜I5分钟,第四次离心分离得到的沉淀物用微球保存液复溶,2〜8℃保存;
(2)预处理样品垫:将样品垫用封闭液浸泡5分钟后,置于湿度小于20%、温度在40〜50℃的烘箱中,烘箱干燥12〜24小时后于将样品垫放置于2〜30℃的环境中密封保存;其中,封闭液为含0.1〜1%的Tris、0.1〜1%的Tween20、0.1〜1%的酪蛋白、0.1〜2% 的PEG20000、0.005〜0.05%的鼠抗人红细胞;
(3)制备标记垫:将荧光微球标记的第一TEX101单克隆抗体和荧光微球标记的亲和素分别按5%〜20%和0.5%〜5%的稀释比例用标记垫处理液喷涂在标记垫上,喷量为3〜6 uL/cm;所述标记垫处理液中含有 0.2〜2%的酪蛋白、5%〜20%的蔗糖、0.1〜1%的Tween-20、0.1〜0.5%的PVP40、0.02〜0.05%的Proclin300、0.01 〜0.05M、7.4的PBS缓冲液;将制备好的标记垫置于湿度小于20%、温度为40〜50℃的烘箱中,烘箱干燥12〜24小时后将标记垫放置于2〜30℃的环境中密封保存;
(4)制备包被膜:分别将检测线包被的第二TEX101单克隆抗体和质控线包被的兔抗亲和素用包被缓冲液调节浓度为0.5〜2 mg/mL,将第二TEX101单克隆抗体喷到包被膜上的检测线,将兔抗亲和素抗体喷到包被膜上的质控线,第二TEX101单克隆抗体和兔抗亲和素抗体的用量按膜包被液量均为0.1〜0.2μL/mm,检测线和质控线间隔4〜8mm,将包被膜放置于湿度小于20%、温度为40〜50℃的烘箱中,烘箱干燥24〜72小时后将包被膜放置于2〜30℃的环境中密封保存,备用;
(5)制备试纸条:在PVC底板上顺次相互搭接地黏贴样品垫、标记垫、包被膜和吸水纸得到试纸板,按照切割要求将试纸板切割成3〜4mm宽度的试纸条。
7.根据权利要求1-6任一所述的定量检测TEX101浓度的荧光试剂条的制备方法在精液TEX101的浓度检测中的应用。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110094094.3A CN112630436A (zh) | 2021-01-25 | 2021-01-25 | 一种定量检测tex101浓度的荧光试剂条的制备方法及其应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110094094.3A CN112630436A (zh) | 2021-01-25 | 2021-01-25 | 一种定量检测tex101浓度的荧光试剂条的制备方法及其应用 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112630436A true CN112630436A (zh) | 2021-04-09 |
Family
ID=75294928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110094094.3A Pending CN112630436A (zh) | 2021-01-25 | 2021-01-25 | 一种定量检测tex101浓度的荧光试剂条的制备方法及其应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112630436A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114874309A (zh) * | 2022-06-07 | 2022-08-09 | 普迪特(泰州)生物科技有限公司 | 一种tex101重组蛋白及其在制备单克隆抗体中的应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107167595A (zh) * | 2017-07-13 | 2017-09-15 | 深圳市亚辉龙生物科技股份有限公司 | 一种荧光定量检测inhb的免疫层析试剂条及其制备方法 |
CN108548928A (zh) * | 2018-04-09 | 2018-09-18 | 无锡全策生物科技有限公司 | 一种快速检测精子活性的试剂盒及检测方法 |
US20190125316A1 (en) * | 2016-04-13 | 2019-05-02 | Nextgen Jane, Inc. | Sample collection and preservation devices, systems and methods |
US20200271660A1 (en) * | 2017-09-05 | 2020-08-27 | Igenomix S.L. | Methods and devices for detecting biomarkers associated with preeclampsia |
-
2021
- 2021-01-25 CN CN202110094094.3A patent/CN112630436A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190125316A1 (en) * | 2016-04-13 | 2019-05-02 | Nextgen Jane, Inc. | Sample collection and preservation devices, systems and methods |
CN107167595A (zh) * | 2017-07-13 | 2017-09-15 | 深圳市亚辉龙生物科技股份有限公司 | 一种荧光定量检测inhb的免疫层析试剂条及其制备方法 |
US20200271660A1 (en) * | 2017-09-05 | 2020-08-27 | Igenomix S.L. | Methods and devices for detecting biomarkers associated with preeclampsia |
CN108548928A (zh) * | 2018-04-09 | 2018-09-18 | 无锡全策生物科技有限公司 | 一种快速检测精子活性的试剂盒及检测方法 |
Non-Patent Citations (1)
Title |
---|
DIMITRIOS KORBAKIS ET AL: "Preclinical evaluation of a TEX101 protein ELISA test for the differential diagnosis of male infertility", 《BMC MEDICINE》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114874309A (zh) * | 2022-06-07 | 2022-08-09 | 普迪特(泰州)生物科技有限公司 | 一种tex101重组蛋白及其在制备单克隆抗体中的应用 |
CN114874309B (zh) * | 2022-06-07 | 2023-11-14 | 普迪特(泰州)生物科技有限公司 | 一种tex101重组蛋白及其在制备单克隆抗体中的应用 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106872420B (zh) | 一种时间分辨荧光定量检测尿微量白蛋白的试剂盒及方法 | |
CN111398588A (zh) | 一种用于快速检测新型冠状病毒n蛋白的免疫层析试剂盒的使用方法 | |
CN107167595A (zh) | 一种荧光定量检测inhb的免疫层析试剂条及其制备方法 | |
CA1137410A (en) | Double tagged immunoassay | |
US3999948A (en) | Diagnostic reagent holder and method | |
US20080032281A1 (en) | Method and Device for Rapid Detection and Quantitation of Macro and Micro Matrices | |
WO2009085573A2 (en) | Quality control cell device for immunohistochemistry assay and methods of use thereof | |
AU621310B2 (en) | Immunometric assay kit and method applicable to whole cells | |
CN107192832A (zh) | 一种荧光定量检测amh的免疫层析试剂条及其制备方法 | |
CN111198273A (zh) | 抗磷脂酶a2受体自身抗体的免疫检测试剂盒、其制备方法及使用方法 | |
CN116539886A (zh) | 检测超敏心肌肌钙蛋白i含量的检测卡、试剂盒及检测方法 | |
US7300761B2 (en) | Methods and device for detecting prostate specific antigen (PSA) | |
CN113567666A (zh) | 一种荧光微球标记的免疫层析法新型冠状病毒检测试纸条及其制备方法和应用 | |
CN107167596A (zh) | 一种荧光定量检测fsh的免疫层析试剂条及其制备方法 | |
CN112630436A (zh) | 一种定量检测tex101浓度的荧光试剂条的制备方法及其应用 | |
US6461825B1 (en) | Immunometric assay kit and method applicable to whole cells | |
CN219434848U (zh) | 一种定量联检免疫层析试剂盒 | |
CN112630437A (zh) | 一种定量检测ProAKAP4浓度的荧光试剂条的制备方法及其应用 | |
CN113113079B (zh) | 一种识别定量免疫层析试验中钩状效应的方法 | |
CN109975538A (zh) | 一种检测牛结核病IFN-γ和牛副结核病抗体的试纸条及其制备方法 | |
JPH05126832A (ja) | 免疫分析装置及び免疫分析方法 | |
CN116413444A (zh) | 一种检测总三碘甲状腺原氨酸含量的试剂盒及其检测方法 | |
CN116413445A (zh) | 一种检测总甲状腺素含量的检测卡、试剂盒及其检测方法 | |
CN110174510A (zh) | 一种pcv3的荧光免疫层析检测卡的制备方法 | |
CN112630451A (zh) | 一种定量检测tex101浓度的化学发光检测试剂盒的制备方法及其应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20210924 Address after: 225324 Building 9, north of Chuangye Avenue, Gaogang science and Innovation Park, Gaogang District, Taizhou City, Jiangsu Province Applicant after: Pudite (Taizhou) Biotechnology Co.,Ltd. Address before: Room 20e1, 76 Xianlie Middle Road, Yuexiu District, Guangzhou, Guangdong 510070 Applicant before: Axis (Guangzhou) Medical Technology Co.,Ltd. |
|
TA01 | Transfer of patent application right | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210409 |
|
WD01 | Invention patent application deemed withdrawn after publication |