CN112852963B - 一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒 - Google Patents
一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒 Download PDFInfo
- Publication number
- CN112852963B CN112852963B CN202110202339.XA CN202110202339A CN112852963B CN 112852963 B CN112852963 B CN 112852963B CN 202110202339 A CN202110202339 A CN 202110202339A CN 112852963 B CN112852963 B CN 112852963B
- Authority
- CN
- China
- Prior art keywords
- trf
- liver cancer
- aag
- leu
- specific primer
- 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.)
- Active
Links
- 201000007270 liver cancer Diseases 0.000 title claims abstract description 37
- 208000014018 liver neoplasm Diseases 0.000 title claims abstract description 33
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 239000003147 molecular marker Substances 0.000 title claims abstract description 12
- 239000002773 nucleotide Substances 0.000 claims abstract description 12
- 125000003729 nucleotide group Chemical group 0.000 claims abstract description 12
- 239000003550 marker Substances 0.000 claims abstract description 6
- 108091032973 (ribonucleotides)n+m Proteins 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000011534 incubation Methods 0.000 description 8
- 108020004414 DNA Proteins 0.000 description 7
- 206010028980 Neoplasm Diseases 0.000 description 7
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 238000010520 demethylation reaction Methods 0.000 description 6
- 108090000623 proteins and genes Proteins 0.000 description 6
- 238000010839 reverse transcription Methods 0.000 description 6
- 102000004190 Enzymes Human genes 0.000 description 5
- 108090000790 Enzymes Proteins 0.000 description 5
- 108020004566 Transfer RNA Proteins 0.000 description 5
- 238000003745 diagnosis Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000011535 reaction buffer Substances 0.000 description 5
- 241000282414 Homo sapiens Species 0.000 description 4
- 238000003753 real-time PCR Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 102000053602 DNA Human genes 0.000 description 3
- 108700039887 Essential Genes Proteins 0.000 description 3
- 238000013473 artificial intelligence Methods 0.000 description 3
- 238000003381 deacetylation reaction Methods 0.000 description 3
- 206010073071 hepatocellular carcinoma Diseases 0.000 description 3
- 231100000844 hepatocellular carcinoma Toxicity 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000003161 ribonuclease inhibitor Substances 0.000 description 3
- 201000009030 Carcinoma Diseases 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 102100034343 Integrase Human genes 0.000 description 2
- 238000012408 PCR amplification Methods 0.000 description 2
- 108010092799 RNA-directed DNA polymerase Proteins 0.000 description 2
- 102000013529 alpha-Fetoproteins Human genes 0.000 description 2
- 108010026331 alpha-Fetoproteins Proteins 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 239000002299 complementary DNA Substances 0.000 description 2
- 238000005947 deacylation reaction Methods 0.000 description 2
- 230000017858 demethylation Effects 0.000 description 2
- 238000013399 early diagnosis Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000004393 prognosis Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 102000040650 (ribonucleotides)n+m Human genes 0.000 description 1
- SWWQQSDRUYSMAR-UHFFFAOYSA-N 1-[(4-hydroxyphenyl)methyl]-1,2,3,4-tetrahydroisoquinoline-6,7-diol;hydrochloride Chemical group Cl.C1=CC(O)=CC=C1CC1C2=CC(O)=C(O)C=C2CCN1 SWWQQSDRUYSMAR-UHFFFAOYSA-N 0.000 description 1
- MLDQJTXFUGDVEO-UHFFFAOYSA-N BAY-43-9006 Chemical compound C1=NC(C(=O)NC)=CC(OC=2C=CC(NC(=O)NC=3C=C(C(Cl)=CC=3)C(F)(F)F)=CC=2)=C1 MLDQJTXFUGDVEO-UHFFFAOYSA-N 0.000 description 1
- 108091032955 Bacterial small RNA Proteins 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 102000010956 Glypican Human genes 0.000 description 1
- 108050001154 Glypican Proteins 0.000 description 1
- 108050007237 Glypican-3 Proteins 0.000 description 1
- 241000700721 Hepatitis B virus Species 0.000 description 1
- 101000615488 Homo sapiens Methyl-CpG-binding domain protein 2 Proteins 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 239000005511 L01XE05 - Sorafenib Substances 0.000 description 1
- 102100021299 Methyl-CpG-binding domain protein 2 Human genes 0.000 description 1
- 101100096548 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) trf-3 gene Proteins 0.000 description 1
- 108091007412 Piwi-interacting RNA Proteins 0.000 description 1
- 108020004682 Single-Stranded DNA Proteins 0.000 description 1
- 108091012456 T4 RNA ligase 1 Proteins 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 102000012086 alpha-L-Fucosidase Human genes 0.000 description 1
- 108010061314 alpha-L-Fucosidase Proteins 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000013 bile duct Anatomy 0.000 description 1
- 230000008827 biological function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000090 biomarker Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010804 cDNA synthesis Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 208000006990 cholangiocarcinoma Diseases 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006196 deacetylation Effects 0.000 description 1
- 230000020176 deacylation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000010102 embolization Effects 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 208000014899 intrahepatic bile duct cancer Diseases 0.000 description 1
- 230000002601 intratumoral effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001050 pharmacotherapy Methods 0.000 description 1
- 206010036067 polydipsia Diseases 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 229940039716 prothrombin Drugs 0.000 description 1
- 238000007674 radiofrequency ablation Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920002477 rna polymer Polymers 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 239000004055 small Interfering RNA Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 229960003787 sorafenib Drugs 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000011269 treatment regimen Methods 0.000 description 1
- 210000004881 tumor cell Anatomy 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6876—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
- C12Q1/6883—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material
- C12Q1/6886—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material for cancer
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q2600/00—Oligonucleotides characterized by their use
- C12Q2600/158—Expression markers
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q2600/00—Oligonucleotides characterized by their use
- C12Q2600/178—Oligonucleotides characterized by their use miRNA, siRNA or ncRNA
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Zoology (AREA)
- Genetics & Genomics (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Hospice & Palliative Care (AREA)
- Biophysics (AREA)
- Oncology (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
本发明公开了一种肝癌新型分子标记物tRF‑Leu‑AAG‑007的检测试剂盒,所述的标记物tRF‑Leu‑AAG‑007如SEQ ID NO.1所示,其核苷酸序列为TCCCACCGCTGCCACCA;所述的检测试剂盒中包含PCR特异引物F和PCR特异引物R,所述的PCR特异引物F如SEQ ID NO.2所示,其核苷酸序列为5'ACAGTCCGACGATCTCCCACC 3',所述的PCR特异引物R如SEQ ID NO.3所示,其核苷酸序列为5'GCTCTTCCGATCTTGGTGGC 3'。本发明的优点在于:使用方便,检测准确性好。
Description
技术领域
本发明涉及检测试剂盒技术领域,具体地说是一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒。
背景技术
原发性肝癌是危害人类健康的重大疾病之,在全球范围内,原发性肝癌发病率排名第六,死亡率位列第四。在我国,由于较高的乙肝病毒感染率以及过度饮酒、吸烟等不良生活习惯的影响,肝癌的发病率上升至10.9%,而死亡率更是高达15.0%。原发性肝癌可分为肝细胞癌、肝内胆管癌和肝细胞及胆管混合癌三种类型,其中肝细胞癌占比最高,约为85-90%。目前肝癌的主要治疗方法包括早期的手术切除、经皮穿刺瘤内注射无水乙醇、射频消融术、经动脉血管栓塞术等,有最新研究报道显示,磁热疗法、索拉非尼药物化疗法也逐渐用于肝癌的治疗。
然而,由于缺乏明确的早期诊断标志物、特异性的临床症状等,肝癌患者确诊时通常已是晚期,总的5年生存期很短,因此早期诊断发现对肿瘤患者尤为重要。转运RNA(transfer RNA,tRNA)是可携带并转运氨基酸的一类核糖核酸,在机体蛋白质合成过程中发挥着重要的桥梁作用,对机体遗传信息的传递必不可少。tRFs为衍生自成熟tRNA和pre-tRNA的小RNA片段,按照来源不同可分为:tRF-5、tRF-3和tRF-1。作为调节性RNA,tRFs在肿瘤的发生、发展过程中扮演着重要的角色。研究发现,与正常细胞相比,肿瘤细胞中许多tRFs均有表达差异。tRFs重要的生物学功能预示着其在肿瘤诊断和治疗策略中具有巨大潜力和应用前景,tRFs的异常表达可能成为肿瘤潜在的诊断、预后判断的生物标志物,有望成为肿瘤治疗的新方向。迄今为止,tRFs作为肝癌诊断标记物的研究暂未见报道。
目前,常见的应用于肝癌诊断的肿瘤标志物有血清 AFP(甲胎蛋白)、α-L-岩藻糖苷酶,去饱和-γ-羧基-凝血酶原以及磷脂酰肌醇蛋白聚糖-3等。虽然这些指标可以用于原发性肝癌患者的诊断和预后评估,但仍存在一定的假阳性率和缺陷性。
发明内容
本发明之目的是弥补上述之不足,向社会公开使用方便,检测准确性好的一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒。
本发明的技术方案是这样实现的:
一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒,所述的标记物tRF-Leu-AAG-007如SEQ ID NO.1所示,其核苷酸序列为TCCCACCGCTGCCACCA;所述的检测试剂盒中包含PCR特异引物F和PCR特异引物R,所述的PCR特异引物F如SEQ ID NO.2所示,其核苷酸序列为5' ACAGTCCGACGATCTCCCACC 3',所述的PCR特异引物R如SEQ ID NO.3所示,其核苷酸序列为5' GCTCTTCCGATCTTGGTGGC 3'。
本发明与现有技术相比的优点是:
本发明的一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒,以tRF-Leu-AAG-007作为肝癌的新型分子标记物,由于tRF-Leu-AAG-007在肝癌中具有较高表达水平,将其作为肝癌标记物能够提高检测的准确性。本发明检测试剂盒针对新型分子标记物tRF-Leu-AAG-007设计引物,针对性强,检测准确性好,检测效率高,有助于肝癌的早期发现。
附图说明
图1是肝癌组织和癌旁组织中tRF-Leu-AAG-007和内参RNU6的扩增曲线图;
图2是肝癌组织和癌旁组织中tRF-Leu-AAG-007的差异表达情况表;
图3是检测56例肝癌患者肝癌组织及其癌旁组织tRF-Leu-AAG-007水平,而制作的ROC曲线图。
具体实施方式
下面结合附图进一步详细描述本发明:
一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒,所述的标记物tRF-Leu-AAG-007如SEQ ID NO.1所示,其核苷酸序列为TCCCACCGCTGCCACCA;所述的检测试剂盒中包含PCR特异引物F和PCR特异引物R,所述的PCR特异引物F如SEQ ID NO.2所示,其核苷酸序列为5' ACAGTCCGACGATCTCCCACC 3',所述的PCR特异引物R如SEQ ID NO.3所示,其核苷酸序列为5' GCTCTTCCGATCTTGGTGGC 3'。
下面通过实验证明tRF-Leu-AAG-007在肝癌中具有较高表达水平以及检测试剂盒内引物对于tRF-Leu-AAG-007检测的有效性。
一、组织样板总RNA 的提取
采用市售TRIzol、氯仿等试剂,按照产品说明书提取浓度、纯度较高的RNA,收集20mg肝癌组织即可进行检测。
二、RNA前处理与cDNA合成
1.3’末端去乙酰化处理
a)如下配置去乙酰化反应液:
Input RNA≤5 µg
Deacylation Reaction Buffer (5×) 3 µL
RNase Inhibitor 1 µL
Nuclease-free Water x µL
总体积/样本 15 µL;
b)涡旋混合,37°C孵育40分钟。
c)依次加入19 µL Deacylation Stop Buffer,涡旋混合,室温孵育5分钟,终止去乙酰化反应。
2.去除3’-cP与添加5’-P
d)将上一步骤的反应液置于冰上,依次加入如下试剂:
Terminal Enzyme Reaction Buffer (10×) 5 µL
10 mM ATP 5 µL
Terminal Enzyme Mix 3 U (1 µL)
Nuclease-free water 5 µL
总体积/样本 50 µL;
e)涡旋混合,37°C孵育40分钟。
f)70°C孵育5分钟以终止反应。
g)重新抽提RNA。
3.去甲基化处理
h)融解除Demethylase和Reverse Transcriptase外的所有试剂,涡旋混合,置于冰上。在使用前从冰箱将两种酶取出,简单离心,以待使用。
i)配制去甲基化反应液:
Nuclease-free water x µL
Demethylation Reaction Buffer (5×) 10 µL
Demethylase 5 µL
RNase Inhibitor 1 µL
Input RNA ≤5 µg
总体积/样本 50 µL ;
j)进行去甲基化反应
在37°C水浴锅中孵育2小时,然后加入40 µL Nuclease-free Water与10 µLDemethylation Stop Buffer (5×),终止去甲基化反应。
k)重新抽提RNA。
4.连接3’接头
l)在200 µL无RNA酶的PCR管中依次加入下列试剂:
Nuclease-free Water variable
样本RNA 0.5-3 µL
3’ Adaptor 0.5 µL
RNA Spike-in 0.5 µL
总体积 3.5 μL;
m)在热循环仪中70℃孵育2分钟,然后将PCR管移至冰上。
n)添加下列反应试剂:
3’ Ligation Reaction Buffer (2X) 5 µL
3’ Ligation Enzyme Mix 1.5 µL
总体积10 µL;
o)在热循环仪中25℃孵育1小时。
注意:延长孵育时间和降低孵育温度(18h;16℃)可以增大甲基化修饰RNA比如piRNA的连接效率,但同时也可能形成串联产物。
5.反转录引物(Reverse Transcription Primer)杂交
此步反应对抑制接头二聚体的形成十分关键。反转录引物可与多余的3’接头杂交,从而将单链DNA接头转化为双链DNA分子。而双链DNA分子不是T4 RNA Ligase 1的底物,因此多余的3’接头不会与5’接头连接。
注意:如果总RNA起始量为100 ng,将反转录引物用无酶水1:2稀释。
p)向步骤o的PCR管里加入下列试剂:
Nuclease-Free Water 2.3 µL
Reverse Transcription Primer 0.5 µL
总体积 12.8 µL;
q)在热循环仪中依次75℃孵育5 min,37℃孵育15 min,25℃孵育15 min。
6.连接5’接头
r)在20 µL无酶水中重悬 5’接头。
注意:如果总RNA起始量为100 ng,将5’接头用无酶水1:2稀释。
s)在单独的无核酸酶的200 µL PCR管中加入0.6N µL的5’接头。(N为实验所处理的样本数目)在热循环仪中70°C 孵育2分钟,然后立即在冰上冷却。
注意:将剩余的5’重悬接头储存在-80°C冰箱。为了避免RNA降解,请在接头变性后30分钟内使用接头。
t)向步骤q中的PCR管中依次加入下列反应物,充分混合。
5’ Adaptor (denatured) 0.5 µL
5’Ligation Reaction Buffer0.5 µL
5’Ligation Enzyme Mix 1.2 µL
总体积 15 µL;
u)热循环仪25°C 孵育1小时。
7.反转录反应
v)在无核酸酶的200 µL PCR管加入下列反应物:
Adaptor Ligated RNA 15 µL
First-Strand Synthesis Reaction Buffer 4 µL
RNase Inhibitor 0.5 µL
Reverse Transcriptase 0.5 µL
总体积 20 µL;
w)热循环仪50°C 孵育1小时,然后立即在冰上冷却,反应产物可直接用于PCR扩增反应。
注意:如果未打算立即进行PCR扩增,热循环仪70°C孵育15分钟以终止RT反应。然后将样本置于-20°C冰箱保存。
三、进行Realtime PCR反应
1、将所有cDNA样品分别配置Realtime PCR反应体系。体系配置如下:
2 × Master Mix 5 µL
10uM 的PCR特异引物F:5’ ACAGTCCGACGATCTCCCACC 3' 0.5 µL
10uM 的PCR特异引物R:5’ GCTCTTCCGATCTTGGTGGC 3’ 0.5 µL
加水至总体积为 8 µL;
轻弹管底将溶液混合,5000 rpm短暂离心。
2、加样
a. 将8ul混合液加到384-PCR板对应的每个孔中。
b. 再加入对应的2µl cDNA。
c. 小心粘上Sealing Film 封口膜,并短暂离心混合。
c. 在设置PCR程序前将准备好的PCR板放在冰上。
3、将上述384-PCR板置于Realtime PCR仪上进行PCR反应。
所有的指标均按以下程序进行:
95℃,10min;40个PCR循环(95℃,10秒;60℃,60秒(收集荧光))。
为了建立PCR产物的熔解曲线,扩增反应结束后,按(95℃,10秒;60℃,60秒;95℃,15秒);并从60℃缓慢加热到99℃(仪器自动进行-Ramp Rate为0.05℃/秒)。
四、结果与计算
各样品的目的基因和管家基因分别进行Realtime PCR反应。根据绘制的梯度稀释DNA标准曲线,各样品目的基因和管家基因的浓度结果直接由软件生成。每个样品的目的基因浓度除以其管家基因的浓度,即为此样品此基因的校正后的相对含量。
如图1所示,正常组织(癌旁组织)和肝癌组织中tRF-Leu-AAG-007(图1中的上部图)和内参RNU6(图1的下部图)均得到有效扩增,与基因测序的结果一致。
如图2所示,癌旁组织和肝癌组织中tRF-Leu-AAG-007的表达存在显著差异,肝癌组织的表达水平为癌旁组织的4.113倍。当癌旁组织与癌组织的比值大于等于4时,认为具有统计学意义。
如图3所示,检测56例肝癌患者肝癌组织及其癌旁组织tRF-Leu-AAG-007水平,制作ROC曲线,曲线下AUC 面积为0.714,P<0.001,说明具有较高的诊断价值。
本发明的最佳实施例已被阐明,由本领域普通技术人员做出的各种变化或改型都不会脱离本发明的范围。
序列表
<110> 中国科学院大学宁波华美医院
<120> 一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒
<160> 3
<170> SIPOSequenceListing 1.0
<210> 2
<211> 17
<212> DNA
<213> 人工智能(Homo sapiens)
<400> 2
tcccaccgct gccacca 17
<210> 2
<211> 21
<212> DNA
<213> 人工智能(Homo sapiens)
<400> 2
acagtccgac gatctcccac c 21
<210> 3
<211> 20
<212> DNA
<213> 人工智能(Homo sapiens)
<400> 3
gctcttccga tcttggtggc 20
Claims (1)
1.一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒,其特征是:所述的标记物tRF-Leu-AAG-007如SEQ ID NO.1所示,其核苷酸序列为TCCCACCGCTGCCACCA;所述的检测试剂盒中包含PCR特异引物F和PCR特异引物R,所述的PCR特异引物F如SEQ ID NO.2所示,其核苷酸序列为5' ACAGTCCGACGATCTCCCACC 3',所述的PCR特异引物R如SEQ ID NO.3所示,其核苷酸序列为5' GCTCTTCCGATCTTGGTGGC 3'。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110202339.XA CN112852963B (zh) | 2021-02-20 | 2021-02-20 | 一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110202339.XA CN112852963B (zh) | 2021-02-20 | 2021-02-20 | 一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112852963A CN112852963A (zh) | 2021-05-28 |
CN112852963B true CN112852963B (zh) | 2022-03-18 |
Family
ID=75990308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110202339.XA Active CN112852963B (zh) | 2021-02-20 | 2021-02-20 | 一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112852963B (zh) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009012263A2 (en) * | 2007-07-18 | 2009-01-22 | The Trustees Of Columbia University In The City Of New York | Tissue-specific micrornas and compositions and uses thereof |
CN103866016A (zh) * | 2014-03-07 | 2014-06-18 | 复旦大学附属中山医院 | 一种循环肿瘤细胞检测试剂盒及其应用 |
CN109207581A (zh) * | 2018-09-25 | 2019-01-15 | 深圳市人民医院 | 一种自身免疫性疾病诊断试剂盒和应用 |
CN110468208A (zh) * | 2019-09-03 | 2019-11-19 | 郭伟 | 一种用于结直肠癌诊断的标志物及其制备的试剂盒 |
CN111378747A (zh) * | 2018-12-27 | 2020-07-07 | 北京创新乐土生物科技有限公司 | 一种用于诊断喉癌的试剂盒及其专用生物标志物 |
-
2021
- 2021-02-20 CN CN202110202339.XA patent/CN112852963B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009012263A2 (en) * | 2007-07-18 | 2009-01-22 | The Trustees Of Columbia University In The City Of New York | Tissue-specific micrornas and compositions and uses thereof |
CN103866016A (zh) * | 2014-03-07 | 2014-06-18 | 复旦大学附属中山医院 | 一种循环肿瘤细胞检测试剂盒及其应用 |
CN109207581A (zh) * | 2018-09-25 | 2019-01-15 | 深圳市人民医院 | 一种自身免疫性疾病诊断试剂盒和应用 |
CN111378747A (zh) * | 2018-12-27 | 2020-07-07 | 北京创新乐土生物科技有限公司 | 一种用于诊断喉癌的试剂盒及其专用生物标志物 |
CN110468208A (zh) * | 2019-09-03 | 2019-11-19 | 郭伟 | 一种用于结直肠癌诊断的标志物及其制备的试剂盒 |
Also Published As
Publication number | Publication date |
---|---|
CN112852963A (zh) | 2021-05-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2603815C (en) | A method for providing dna fragments derived from a remote sample | |
US8088577B2 (en) | Assay for methylation in the GST-Pi gene | |
ES2769795T3 (es) | Sistema y método de detección de RNAs alterados por cáncer de pulmón en sangre periférica | |
CN113604564A (zh) | 一种检测外泌体相关microRNA分子的方法 | |
Crocitto et al. | Prostate cancer molecular markers GSTP1 and hTERT in expressed prostatic secretions as predictors of biopsy results | |
JP4495349B2 (ja) | 癌の遺伝マーカーを生物学的サンプルにおいて検出するための核酸配列 | |
AU2020445677A1 (en) | Tumor detection reagent and kit | |
CN112852963B (zh) | 一种肝癌新型分子标记物tRF-Leu-AAG-007的检测试剂盒 | |
CN115851921B (zh) | 引物探针组合产品、试剂盒及其在鼻咽癌甲基化检测中的应用 | |
CN112226507A (zh) | 甲状腺乳头状癌血清标志物及应用 | |
CN114410795A (zh) | 基于miRNA特征标记的肝癌早期检测 | |
WO2020064006A2 (zh) | 乳腺癌分子分型及远处转移风险基因群及诊断产品和应用 | |
CN114277102B (zh) | 用于检测人体液中的HLA-B27基因的RAA引物、CrRNA、试剂盒及检测方法 | |
EP2389450B1 (en) | Methods for determining a prognosis for survival for a patient with breast cancer | |
WO2023145754A1 (ja) | 膀胱癌の存在を検出するためのプライマー及びプローブ | |
KR101860547B1 (ko) | 세포-유리형 dna의 암 질환의 진단 용도 | |
WO2023228174A1 (en) | Useful combinations of restriction enzymes | |
JPH11243995A (ja) | 尿サンプル中の膀胱癌の検出 | |
CN114807373A (zh) | 人bmp3和ndrg4基因甲基化检测试剂盒 | |
EP4294936A1 (en) | Compositions and methods for labeling modified nucleotides in nucleic acids | |
CN117535415A (zh) | 一种用于乳腺癌检测的核酸组合物和试剂盒 | |
CN118421793A (zh) | 检测基因突变的引物组、试剂盒及方法 | |
CN118291630A (zh) | 循环肿瘤细胞中多突变位点的pcr非诊断检测方法及应用 | |
WO2013140339A1 (en) | Positive control for pcr |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |