1
|
Zhou Y, Xu Y, Zhao J, Hu W. A pathogenic germline BRCA1 mutation identified in a patient with non-Hodgkin lymphoma and rectal adenocarcinoma: "Non-classical" hereditary cancer? Asian J Surg 2023; 46:5768-5769. [PMID: 37661479 DOI: 10.1016/j.asjsur.2023.08.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 08/22/2023] [Indexed: 09/05/2023] Open
Affiliation(s)
- You Zhou
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, China; Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, China; Jiangsu Engineering Research Center for Tumor Immunotherapy, Changzhou, China
| | - Yanjie Xu
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Jiemin Zhao
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Wenwei Hu
- Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, China; Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, China; Jiangsu Engineering Research Center for Tumor Immunotherapy, Changzhou, China.
| |
Collapse
|
2
|
Feng D, Su J, He G, Xu Y, Wang C, Zheng M, Qian Q, Mi X. Electrochemical DNA Sensor for Sensitive BRCA1 Detection Based on DNA Tetrahedral-Structured Probe and Poly-Adenine Mediated Gold Nanoparticles. BIOSENSORS-BASEL 2020; 10:bios10070078. [PMID: 32698331 PMCID: PMC7400266 DOI: 10.3390/bios10070078] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/28/2020] [Accepted: 07/08/2020] [Indexed: 01/18/2023]
Abstract
BRCA1 is the biomarker for the early diagnosis of breast cancer. Detection of BRCA1 has great significance for the genetic analysis, early diagnosis and clinical treatment of breast cancer. In this work, we developed a simple electrochemical DNA sensor based on a DNA tetrahedral-structured probe (TSP) and poly-adenine (polyA) mediated gold nanoparticles (AuNPs) for the sensitive detection of BRCA1. A thiol-modified TSP was used as the scaffold on the surface of the screen-printed AuNPs electrode. The capture DNA (TSP) and reporter DNA were hybridized to the target DNA (BRCA1), respectively, to form the typical sandwich system. The nanocomposites of reporter DNA (polyA at the 5′ end) combined with AuNPs were employed for signal amplification which can capture multiple enzymes by the specificity between biotin and streptavidin. Measurements were completed in the electrochemical workstation by cyclic voltammetry and amperometry and we obtained the low limit of detection of 0.1 fM with the linear range from 1 fM to 1 nM. High sensitivity and good specificity of the proposed electrochemical DNA sensor showed potential applications in clinical early diagnosis for breast cancer.
Collapse
Affiliation(s)
- Dezhi Feng
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; (D.F.); (G.H.); (Y.X.); (C.W.); (M.Z.); (Q.Q.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Su
- Institute for Personalized Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China;
| | - Guifang He
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; (D.F.); (G.H.); (Y.X.); (C.W.); (M.Z.); (Q.Q.)
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Yi Xu
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; (D.F.); (G.H.); (Y.X.); (C.W.); (M.Z.); (Q.Q.)
| | - Chenguang Wang
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; (D.F.); (G.H.); (Y.X.); (C.W.); (M.Z.); (Q.Q.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mengmeng Zheng
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; (D.F.); (G.H.); (Y.X.); (C.W.); (M.Z.); (Q.Q.)
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Qiuling Qian
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; (D.F.); (G.H.); (Y.X.); (C.W.); (M.Z.); (Q.Q.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xianqiang Mi
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; (D.F.); (G.H.); (Y.X.); (C.W.); (M.Z.); (Q.Q.)
- University of Chinese Academy of Sciences, Beijing 100049, China
- Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- CAS Center for Excellence in Superconducting Electronics (CENSE), Shanghai 200050, China
- Key Laboratory of Systems Biology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Hangzhou 310024, China
- Correspondence:
| |
Collapse
|
3
|
Rahman S, Zayed H. Breast cancer in the GCC countries: A focus on BRCA1/2 and non-BRCA1/2 genes. Gene 2018; 668:73-76. [DOI: 10.1016/j.gene.2018.05.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 05/13/2018] [Indexed: 10/16/2022]
|
4
|
Prevalence and spectrum of BRCA germline variants in mainland Chinese familial breast and ovarian cancer patients. Oncotarget 2017; 7:9600-12. [PMID: 26848529 PMCID: PMC4891063 DOI: 10.18632/oncotarget.7144] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 01/18/2016] [Indexed: 11/25/2022] Open
Abstract
Germline mutations in BRCA1 and BRCA2 are the most penetrating genetic predispositions for breast and ovarian cancer, and their presence is largely ethnic-specific. Comprehensive information about the prevalence and spectrum of BRCA mutations has been collected in European and North American populations. However, similar information is lacking in other populations, including the mainland Chinese population despite its large size of 1.4 billion accounting for one fifth of the world's population. Herein, we performed an extensive literature analysis to collect BRCA variants identified from mainland Chinese familial breast and ovarian cancer patients. We observed 137 distinct BRCA1 variants in 409 of 3,844 and 80 distinct BRCA2 variants in 157 of 3,024 mainland Chinese patients, with an estimated prevalence of 10.6% for BRCA1 and 5.2% for BRCA2. Of these variants, only 40.3% in BRCA1 and 42.5% in BRCA2 are listed in current Breast Cancer Information Core database. We observed higher frequent variation in BRCA1 exons 11A, 11C, 11D, and 24 and BRCA2 exon 10 in Chinese patients than in the patients of other populations. The most common pathogenic variant in BRCA1 wasc.981_982delAT in exon 11A, and in BRCA2 c.3195_3198delTAAT in exon 11B and c.5576_5579delTTAA in exon 11E; the most common novel variant in BRCA1 was c.919A>G in exon 10A, and in BRCA2 c.7142delC in exon 14. None of the variants overlap with the founder mutations in other populations. Our analysis indicates that the prevalence of BRCA variation in mainland Chinese familial breast and ovarian cancer patients is at a level similar to but the spectrum is substantially different from the ones of other populations.
Collapse
|
5
|
Abstract
Breast cancer is the most common malignancy among women and has a strong genetic background. So far, 13 breast cancer susceptibility genes of high or moderate penetrance have been identified. This review summarizes findings on these genes in Han Chinese. BRCA1 and BRCA2 are the 2 most important susceptibility genes. They have a relatively low mutation rate, and the most frequent sites of mutation are in exon 11. Frameshift mutations are the main type of mutation. Founder mutations may also exist, and BRCA-associated breast cancer has specific clinicopathologic characteristics. TP53 and PALB2 are relatively rare susceptibility genes. The relationship between the other 9 genes and breast cancer has not been fully elucidated. At present, the mutation spectrum for these susceptibility genes is not well understood in the Chinese population, and there are few reports on prognosis and clinical intervention in high-risk populations. Therefore, the true value of genetic counseling for breast cancer has yet to be realized. This article reviews studies of hereditary breast cancer in the Han Chinese population, highlights potential inadequacies, and provides a foundation for genetic counseling for breast cancer in China.
Collapse
Affiliation(s)
- Wenming Cao
- Institute of Cell Biology, Zhejiang University, Hangzhou, China
| | | | | |
Collapse
|
6
|
Ang P, Lim IH, Lee TC, Luo JT, Ong DC, Tan PH, Lee AS. BRCA1 and BRCA2 Mutations in an Asian Clinic-based Population Detected Using a Comprehensive Strategy. Cancer Epidemiol Biomarkers Prev 2007; 16:2276-84. [DOI: 10.1158/1055-9965.epi-07-0403] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|