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Qian J, Peng M, Li Y, Liu W, Zou X, Chen H, Zhou S, Xiao S, Zhou J. Case report: A germline CHEK1 c.613 + 2T>C leads to a splicing error in a family with multiple cancer patients. Front Oncol 2024; 14:1380093. [PMID: 38686193 PMCID: PMC11056527 DOI: 10.3389/fonc.2024.1380093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 03/21/2024] [Indexed: 05/02/2024] Open
Abstract
Background Genome instability plays a crucial role in promoting tumor development. Germline mutations in genes responsible for DNA repair are often associated with familial cancer syndromes. A noticeable exception is the CHEK1 gene. Despite its well-established role in homologous recombination, germline mutations in CHEK1 are rarely reported. Case presentation In this report, we present a patient diagnosed with ovarian clear cell carcinoma who has a family history of cancer. Her relatives include a grandfather with esophageal cancer, a father with gastric cancer, and an uncle with a brain tumor. The patient carried a typical genomic profile of clear cell carcinoma including mutations in KRAS, PPP2R1A, and PIK3R1. Importantly, her paired peripheral blood cells harbored a germline CHEK1 mutation, CHEK1 exon 6 c.613 + 2T>C, which was also found in her father. Unfortunately, the CHEK1 status of her grandfather and uncle remains unknown due to the unavailability of their specimens. Further evaluation via RT-PCR confirmed a splicing error in the CHEK1 gene, resulting in truncation at the kinase domain region, indicative of a loss-of-function mutation. Conclusion This case highlights a rare germline CHEK1 mutation within a family with a history of cancer. The confirmed splicing error at the mRNA level underscores the functional consequences of this mutation. Documenting such cases is vital for future evaluation of inheritance patterns, clinical penetrance of the mutation, and its association with specific cancer types.
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Affiliation(s)
- Jun Qian
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Min Peng
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yanan Li
- Molecular Genetics Laboratory, Suzhou Sano Precision Medicine Ltd., Suzhou, China
| | - Wei Liu
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xinwei Zou
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Huafei Chen
- Molecular Genetics Laboratory, Suzhou Sano Precision Medicine Ltd., Suzhou, China
| | - Sujuan Zhou
- Molecular Genetics Laboratory, Suzhou Sano Precision Medicine Ltd., Suzhou, China
| | - Sheng Xiao
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Jinhua Zhou
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Soochow University, Suzhou, China
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Pantaleo A, Forte G, Fasano C, Lepore Signorile M, Sanese P, De Marco K, Di Nicola E, Latrofa M, Grossi V, Disciglio V, Simone C. Understanding the Genetic Landscape of Pancreatic Ductal Adenocarcinoma to Support Personalized Medicine: A Systematic Review. Cancers (Basel) 2023; 16:56. [PMID: 38201484 PMCID: PMC10778202 DOI: 10.3390/cancers16010056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most fatal malignancies worldwide. While population-wide screening recommendations for PDAC in asymptomatic individuals are not achievable due to its relatively low incidence, pancreatic cancer surveillance programs are recommended for patients with germline causative variants in PDAC susceptibility genes or a strong family history. In this study, we sought to determine the prevalence and significance of germline alterations in major genes (ATM, BRCA1, BRCA2, CDKN2A, EPCAM, MLH1, MSH2, MSH6, PALB2, PMS2, STK11, TP53) involved in PDAC susceptibility. We performed a systematic review of PubMed publications reporting germline variants identified in these genes in PDAC patients. Overall, the retrieved articles included 1493 PDAC patients. A high proportion of these patients (n = 1225/1493, 82%) were found to harbor alterations in genes (ATM, BRCA1, BRCA2, PALB2) involved in the homologous recombination repair (HRR) pathway. Specifically, the remaining PDAC patients were reported to carry alterations in genes playing a role in other cancer pathways (CDKN2A, STK11, TP53; n = 181/1493, 12.1%) or in the mismatch repair (MMR) pathway (MLH1, MSH2, MSH6, PMS2; n = 87/1493, 5.8%). Our findings highlight the importance of germline genetic characterization in PDAC patients for better personalized targeted therapies, clinical management, and surveillance.
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Affiliation(s)
- Antonino Pantaleo
- Medical Genetics, National Institute of Gastroenterology-IRCCS “Saverio de Bellis” Research Hospital, 70013 Bari, Italy; (A.P.); (G.F.); (C.F.); (M.L.S.); (P.S.); (K.D.M.); (E.D.N.); (M.L.); (V.G.)
| | - Giovanna Forte
- Medical Genetics, National Institute of Gastroenterology-IRCCS “Saverio de Bellis” Research Hospital, 70013 Bari, Italy; (A.P.); (G.F.); (C.F.); (M.L.S.); (P.S.); (K.D.M.); (E.D.N.); (M.L.); (V.G.)
| | - Candida Fasano
- Medical Genetics, National Institute of Gastroenterology-IRCCS “Saverio de Bellis” Research Hospital, 70013 Bari, Italy; (A.P.); (G.F.); (C.F.); (M.L.S.); (P.S.); (K.D.M.); (E.D.N.); (M.L.); (V.G.)
| | - Martina Lepore Signorile
- Medical Genetics, National Institute of Gastroenterology-IRCCS “Saverio de Bellis” Research Hospital, 70013 Bari, Italy; (A.P.); (G.F.); (C.F.); (M.L.S.); (P.S.); (K.D.M.); (E.D.N.); (M.L.); (V.G.)
| | - Paola Sanese
- Medical Genetics, National Institute of Gastroenterology-IRCCS “Saverio de Bellis” Research Hospital, 70013 Bari, Italy; (A.P.); (G.F.); (C.F.); (M.L.S.); (P.S.); (K.D.M.); (E.D.N.); (M.L.); (V.G.)
| | - Katia De Marco
- Medical Genetics, National Institute of Gastroenterology-IRCCS “Saverio de Bellis” Research Hospital, 70013 Bari, Italy; (A.P.); (G.F.); (C.F.); (M.L.S.); (P.S.); (K.D.M.); (E.D.N.); (M.L.); (V.G.)
| | - Elisabetta Di Nicola
- Medical Genetics, National Institute of Gastroenterology-IRCCS “Saverio de Bellis” Research Hospital, 70013 Bari, Italy; (A.P.); (G.F.); (C.F.); (M.L.S.); (P.S.); (K.D.M.); (E.D.N.); (M.L.); (V.G.)
| | - Marialaura Latrofa
- Medical Genetics, National Institute of Gastroenterology-IRCCS “Saverio de Bellis” Research Hospital, 70013 Bari, Italy; (A.P.); (G.F.); (C.F.); (M.L.S.); (P.S.); (K.D.M.); (E.D.N.); (M.L.); (V.G.)
| | - Valentina Grossi
- Medical Genetics, National Institute of Gastroenterology-IRCCS “Saverio de Bellis” Research Hospital, 70013 Bari, Italy; (A.P.); (G.F.); (C.F.); (M.L.S.); (P.S.); (K.D.M.); (E.D.N.); (M.L.); (V.G.)
| | - Vittoria Disciglio
- Medical Genetics, National Institute of Gastroenterology-IRCCS “Saverio de Bellis” Research Hospital, 70013 Bari, Italy; (A.P.); (G.F.); (C.F.); (M.L.S.); (P.S.); (K.D.M.); (E.D.N.); (M.L.); (V.G.)
| | - Cristiano Simone
- Medical Genetics, National Institute of Gastroenterology-IRCCS “Saverio de Bellis” Research Hospital, 70013 Bari, Italy; (A.P.); (G.F.); (C.F.); (M.L.S.); (P.S.); (K.D.M.); (E.D.N.); (M.L.); (V.G.)
- Medical Genetics, Department of Precision and Regenerative Medicine and Jonic Area (DiMePRe-J), University of Bari Aldo Moro, 70124 Bari, Italy
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Dragojlovic N, Borle K, Kopac N, Nisselle A, Nuk J, Jevon M, Friedman JM, Elliott AM, Lynd LD. Workforce Implications of Increased Referrals to Hereditary Cancer Services in Canada: A Scenario-Based Analysis. Curr Oncol 2023; 30:7241-7251. [PMID: 37623006 PMCID: PMC10453026 DOI: 10.3390/curroncol30080525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 07/19/2023] [Accepted: 07/27/2023] [Indexed: 08/26/2023] Open
Abstract
Over the last decade, utilization of clinical genetics services has grown rapidly, putting increasing pressure on the workforce available to deliver genetic healthcare. To highlight the policy challenges facing Canadian health systems, a needs-based workforce requirements model was developed to determine the number of Canadian patients in 2030 for whom an assessment of hereditary cancer risk would be indicated according to current standards and the numbers of genetic counsellors, clinical geneticists and other physicians with expertise in genetics needed to provide care under a diverse set of scenarios. Our model projects that by 2030, a total of 90 specialist physicians and 326 genetic counsellors (1.7-fold and 1.6-fold increases from 2020, respectively) will be required to provide Canadians with indicated hereditary cancer services if current growth trends and care models remain unchanged. However, if the expansion in eligibility for hereditary cancer assessment accelerates, the need for healthcare providers with expertise in genetics would increase dramatically unless alternative care models are widely adopted. Increasing capacity through service delivery innovation, as well as mainstreaming of cancer genetics care, will be critical to Canadian health systems' ability to meet this challenge.
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Affiliation(s)
- Nick Dragojlovic
- Collaboration for Outcomes Research and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 1Z3, Canada; (N.D.)
| | - Kennedy Borle
- Collaboration for Outcomes Research and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 1Z3, Canada; (N.D.)
| | - Nicola Kopac
- Collaboration for Outcomes Research and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 1Z3, Canada; (N.D.)
| | - Amy Nisselle
- Australian Genomics Health Alliance, Parkville, VIC 3052, Australia
- Murdoch Children’s Research Institute, Department of Pediatrics, The University of Melbourne, Parkville, VIC 3052, Australia
| | - Jennifer Nuk
- Hereditary Cancer Program, BC Cancer, Vancouver, BC V5Z 1J2, Canada
- Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, BC V6H 3N1, Canada
| | - Mandy Jevon
- Hereditary Cancer Program, BC Cancer, Vancouver, BC V5Z 1J2, Canada
| | - Jan M. Friedman
- Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, BC V6H 3N1, Canada
- BC Children’s Hospital Research Institute, Vancouver, BC V5Z 4H4, Canada
| | - Alison M. Elliott
- Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, BC V6H 3N1, Canada
- BC Children’s Hospital Research Institute, Vancouver, BC V5Z 4H4, Canada
- Women’s Health Research Institute, Vancouver, BC V6H 3N1, Canada
| | - Larry D. Lynd
- Collaboration for Outcomes Research and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 1Z3, Canada; (N.D.)
- Centre for Health Evaluation & Outcome Sciences, Providence Health, Vancouver, BC V6Z IY6, Canada
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