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Pires C, Marques IJ, Saramago A, Moura MM, Pojo M, Cabrera R, Santos C, Rosário F, Lousa D, Vicente JB, Bandeiras TM, Teixeira MR, Leite V, Cavaco BM. Identification of novel candidate predisposing genes in familial nonmedullary thyroid carcinoma implicating DNA damage repair pathways. Int J Cancer 2024. [PMID: 39251783 DOI: 10.1002/ijc.35159] [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: 03/11/2024] [Revised: 07/08/2024] [Accepted: 08/05/2024] [Indexed: 09/11/2024]
Abstract
The genetic basis of nonsyndromic familial nonmedullary thyroid carcinoma (FNMTC) is still poorly understood, as the susceptibility genes identified so far only account for a small percentage of the genetic burden. Recently, germline mutations in DNA repair-related genes have been reported in cases with thyroid cancer. In order to clarify the genetic basis of FNMTC, 94 genes involved in hereditary cancer predisposition, including DNA repair genes, were analyzed in 48 probands from FNMTC families, through targeted next-generation sequencing (NGS). Genetic variants were selected upon bioinformatics analysis and in silico studies. Structural modeling and network analysis were also performed. In silico results of NGS data unveiled likely pathogenic germline variants in 15 families with FNMTC, in genes encoding proteins involved in DNA repair (ATM, CHEK2, ERCC2, BRCA2, ERCC4, FANCA, FANCD2, FANCF, and PALB2) and in the DICER1, FLCN, PTCH1, BUB1B, and RHBDF2 genes. Structural modeling predicted that most missense variants resulted in the disruption of networks of interactions between residues, with implications for local secondary and tertiary structure elements. Functional annotation and network analyses showed that the involved DNA repair proteins functionally interact with each other, within the same DNA repair pathway and across different pathways. MAPK activation was a common event in tumor progression. This study supports that rare germline variants in DNA repair genes may be accountable for FNMTC susceptibility, with potential future utility in patients' clinical management, and reinforces the relevance of DICER1 in disease etiology.
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Affiliation(s)
- Carolina Pires
- Unidade de Investigação em Patobiologia Molecular, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal
- NOVA Medical School/Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Inês J Marques
- Unidade de Investigação em Patobiologia Molecular, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal
- NOVA Medical School/Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Ana Saramago
- Unidade de Investigação em Patobiologia Molecular, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal
| | - Margarida M Moura
- Unidade de Investigação em Patobiologia Molecular, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal
| | - Marta Pojo
- Unidade de Investigação em Patobiologia Molecular, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal
| | - Rafael Cabrera
- Serviço de Anatomia Patológica, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal
| | - Catarina Santos
- Serviço de Genética, Instituto Português de Oncologia do Porto Francisco Gentil, Porto, Portugal
| | | | - Diana Lousa
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB), Universidade Nova de Lisboa, Oeiras, Portugal
| | - João B Vicente
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB), Universidade Nova de Lisboa, Oeiras, Portugal
| | - Tiago M Bandeiras
- Instituto de Biologia Experimental e Tecnológica (iBET), Oeiras, Portugal
| | - Manuel R Teixeira
- Serviço de Genética, Instituto Português de Oncologia do Porto Francisco Gentil, Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Valeriano Leite
- NOVA Medical School/Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
- Serviço de Endocrinologia, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal
| | - Branca M Cavaco
- Unidade de Investigação em Patobiologia Molecular, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal
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Iacobas DA, Iacobas S. Papillary Thyroid Cancer Remodels the Genetic Information Processing Pathways. Genes (Basel) 2024; 15:621. [PMID: 38790250 PMCID: PMC11120757 DOI: 10.3390/genes15050621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/10/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
The genetic causes of the differentiated, highly treatable, and mostly non-fatal papillary thyroid cancer (PTC) are not yet fully understood. The mostly accepted PTC etiology blames the altered sequence or/and expression level of certain biomarker genes. However, tumor heterogeneity and the patient's unique set of favoring factors question the fit-for-all gene biomarkers. Publicly accessible gene expression profiles of the cancer nodule and the surrounding normal tissue from a surgically removed PTC tumor were re-analyzed to determine the cancer-induced alterations of the genomic fabrics responsible for major functional pathways. Tumor data were compared with those of standard papillary and anaplastic thyroid cancer cell lines. We found that PTC regulated numerous genes associated with DNA replication, repair, and transcription. Results further indicated that changes of the gene networking in functional pathways and the homeostatic control of transcript abundances also had major contributions to the PTC phenotype occurrence. The purpose to proliferate and invade the entire gland may explain the substantial transcriptomic differences we detected between the cells of the cancer nodule and those spread in homo-cellular cultures (where they need only to survive). In conclusion, the PTC etiology should include the complex molecular mechanisms involved in the remodeling of the genetic information processing pathways.
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Affiliation(s)
- Dumitru Andrei Iacobas
- Personalized Genomics Laboratory, Undergraduate Medical Academy, Prairie View A&M University, Prairie View, TX 77446, USA
| | - Sanda Iacobas
- Department of Pathology, New York Medical College, Valhalla, NY 10595, USA;
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Kalarani IB, Sivamani G, Veerabathiran R. Identification of crucial genes involved in thyroid cancer development. J Egypt Natl Canc Inst 2023; 35:15. [PMID: 37211566 DOI: 10.1186/s43046-023-00177-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/10/2023] [Indexed: 05/23/2023] Open
Abstract
BACKGROUND A malignancy of the endocrine system, one of the most common types, is thyroid cancer. It is proven that children who receive radiation treatment for leukemia or lymphoma are at a heightened risk of thyroid cancer due to low-dose radiation exposure throughout childhood. Several factors can increase the risk of thyroid cancer (ThyCa), such as chromosomal and genetic mutations, iodine intake, TSH levels, autoimmune thyroid disorders, estrogen, obesity, lifestyle changes, and environmental contaminants. OBJECTIVES The study aimed to identify a specific gene as an essential candidate for thyroid cancer progression. We might be able to focus on developing a better understanding of how thyroid cancer is inherited. METHODS The review article uses electronic databases such as PubMed, Google Scholar, Ovid MEDLINE, Embase, and Cochrane Central. The most frequently associated genes with thyroid cancer found on PubMed were BAX, XRCC1, XRCC3, XPO5, IL-10, BRAF, RET, and K-RAS. To perform an electronic literature search, genes derived from DisGeNET: a database of gene-disease associations, including PRKAR1A, BRAF, RET, NRAS, and KRAS, are used. CONCLUSION Examining the genetics of thyroid cancer explicitly emphasizes the primary genes associated with the pathophysiology of young and older people with thyroid cancer. Developing such gene investigations at the beginning of the thyroid cancer development process can identify better outcomes and the most aggressive thyroid cancers.
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Affiliation(s)
- Iyshwarya Bhaskar Kalarani
- Human Cytogenetics and Genomics Laboratory, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Tamilnadu, 603103, India
| | - Ganesan Sivamani
- PG & Research Department of Zoology and Biotechnology, AVVM Sri Pushpam College, Poondi, Thanjavur, 613 503, Tamil Nadu, India
| | - Ramakrishnan Veerabathiran
- Human Cytogenetics and Genomics Laboratory, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, Tamilnadu, 603103, India.
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Paladino L, Santonocito R, Graceffa G, Cipolla C, Pitruzzella A, Cabibi D, Cappello F, Conway de Macario E, Macario AJL, Bucchieri F, Rappa F. Immunomorphological Patterns of Chaperone System Components in Rare Thyroid Tumors with Promise as Biomarkers for Differential Diagnosis and Providing Clues on Molecular Mechanisms of Carcinogenesis. Cancers (Basel) 2023; 15:2403. [PMID: 37190332 PMCID: PMC10136750 DOI: 10.3390/cancers15082403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/10/2023] [Accepted: 04/19/2023] [Indexed: 05/17/2023] Open
Abstract
Hurthle cell (HC), anaplastic (AC), and medullary (MC) carcinomas are low frequency thyroid tumors that pose several challenges for physicians and pathologists due to the scarcity of cases, information, and histopathological images, especially in the many areas around the world in which sophisticated molecular and genetic diagnostic facilities are unavailable. It is, therefore, cogent to provide tools for microscopists to achieve accurate diagnosis, such as histopathological images with reliable biomarkers, which can help them to reach a differential diagnosis. We are investigating whether components of the chaperone system (CS), such as the molecular chaperones, can be considered dependable biomarkers, whose levels and distribution inside and outside cells in the tumor tissue could present a distinctive histopathological pattern for each tumor type. Here, we report data on the chaperones Hsp27, Hsp60, and Hsp90. They presented quantitative levels and distribution patterns that were different for each tumor and differed from those of a benign thyroid pathology, goiter (BG). Therefore, the reported methodology can be beneficial when the microscopist must differentiate between HC, AC, MC, and BG.
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Affiliation(s)
- Letizia Paladino
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Human Anatomy and Histology, University of Palermo, 90127 Palermo, Italy; (L.P.); (R.S.); (A.P.); (F.C.)
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy; (E.C.d.M.); (A.J.L.M.)
| | - Radha Santonocito
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Human Anatomy and Histology, University of Palermo, 90127 Palermo, Italy; (L.P.); (R.S.); (A.P.); (F.C.)
| | - Giuseppa Graceffa
- Department of Surgical Oncology and Oral Sciences, University of Palermo, 90127 Palermo, Italy; (G.G.); (C.C.)
| | - Calogero Cipolla
- Department of Surgical Oncology and Oral Sciences, University of Palermo, 90127 Palermo, Italy; (G.G.); (C.C.)
| | - Alessandro Pitruzzella
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Human Anatomy and Histology, University of Palermo, 90127 Palermo, Italy; (L.P.); (R.S.); (A.P.); (F.C.)
- Consortium of Caltanissetta, University of Palermo, 93100 Caltanissetta, Italy
| | - Daniela Cabibi
- Department of Sciences for the Promotion of Health and Mother and Child Care, “G. D’Alessandro”, Pathology Institute, University of Palermo, 90127 Palermo, Italy;
| | - Francesco Cappello
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Human Anatomy and Histology, University of Palermo, 90127 Palermo, Italy; (L.P.); (R.S.); (A.P.); (F.C.)
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy; (E.C.d.M.); (A.J.L.M.)
| | - Everly Conway de Macario
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy; (E.C.d.M.); (A.J.L.M.)
- Department of Microbiology and Immunology, School of Medicine, University of Maryland at Baltimore-Institute of Marine and Environmental Technology (IMET), Baltimore, MD 21202, USA
| | - Alberto J. L. Macario
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy; (E.C.d.M.); (A.J.L.M.)
- Department of Microbiology and Immunology, School of Medicine, University of Maryland at Baltimore-Institute of Marine and Environmental Technology (IMET), Baltimore, MD 21202, USA
| | - Fabio Bucchieri
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Human Anatomy and Histology, University of Palermo, 90127 Palermo, Italy; (L.P.); (R.S.); (A.P.); (F.C.)
| | - Francesca Rappa
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), Institute of Human Anatomy and Histology, University of Palermo, 90127 Palermo, Italy; (L.P.); (R.S.); (A.P.); (F.C.)
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Shen Z, Sun Y, Niu G. Variants in TPO rs2048722, PTCSC2 rs925489 and SEMA4G rs4919510 affect thyroid carcinoma susceptibility risk. BMC Med Genomics 2023; 16:19. [PMID: 36737753 PMCID: PMC9898984 DOI: 10.1186/s12920-023-01447-5] [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: 06/23/2022] [Accepted: 01/27/2023] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Thyroid carcinoma (THCA) is a malignant endocrine tumor all around the world, which is influenced by genetic and environmental factors. OBJECTIVE To explore the association between TPO rs2048722, PTCSC2 rs925489, SEMA4G rs4919510 polymorphisms and THCA susceptibility in Chinese population. METHODS We recruited 365 THCA patients and 498 normal controls for the study. Logistic regression analysis was used to evaluate the association between TPO rs2048722, PTCSC2 rs925489, SEMA4G rs4919510 polymorphisms and THCA susceptibility. MDR was used to assess the genetic interactions among the three SNPs. RESULTS Overall analysis demonstrated that rs925489 of PTCSC2 was evidently associated with increased risk of THCA in multiple genetic models (OR = 1.59, 95%CI = 1.12-2.24, p = 0.009). The results of stratified analysis illustrated that rs2048722 of TPO can significantly increase the THCA susceptibility of participants less than or equal to 44 years old and smokers. Similarly, rs925489 of PTCSC2 obviously improved the risk of THCA among participants older than 44 years, males, smokers and drinkers. However, rs4919510 of SEMA4G has a protective effect on the development of THCA among participants with less than or equal to 44 years old and non-drinkers. Interestingly, there was a strong genetic interaction among the three SNPs in the occurrence of THCA risk. CONCLUSION TPO rs2048722, PTCSC2 rs925489 and SEMA4G rs4919510 polymorphisms were evidently associated with the risk of THCA in the Chinese population, which was affected by age, gender, smoking and drinking consumption.
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Affiliation(s)
- Zhen Shen
- grid.452438.c0000 0004 1760 8119Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, No. 277, Yanta West Road, Xi’an, 710000 Shaanxi China
| | - Yingjun Sun
- Department of Otolaryngology, Yaozhou Zone People’s Hospital, North side of the middle of Huayuan Road, Yaozhou Zone, Tongchuan, 727100 Shaanxi China
| | - Guohua Niu
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277, Yanta West Road, Xi'an, 710000, Shaanxi, China. .,Department of Otolaryngology, Yaozhou Zone People's Hospital, North side of the middle of Huayuan Road, Yaozhou Zone, Tongchuan, 727100, Shaanxi, China.
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6
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Zhang Q, Zhang X, Ma F, Zhang CY. Advances in quantum dot-based biosensors for DNA-modifying enzymes assay. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Qiao PP, Tian KS, Han LT, Ma B, Shen CK, Zhao RY, Zhang Y, Wei WJ, Chen XP. Correlation of mismatch repair deficiency with clinicopathological features and programmed death-ligand 1 expression in thyroid carcinoma. Endocrine 2022; 76:660-670. [PMID: 35366156 DOI: 10.1007/s12020-022-03031-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 02/24/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Mutations in DNA mismatch repair (MMR) genes associated with thyroid carcinoma (TC) have rarely been reported, especially in East Asian populations. METHODS We examined tumor tissue from a cohort of 241 patients diagnosed with TC between 2008 and 2020. MMR proteins were detected using tissue microarray-based immunohistochemistry in order to identify MMR-protein-deficient (MMR-D) and MMR-protein-intact (MMR-I) tumors. We retrospectively summarized the clinicopathologic characteristics of patients with MMR-D TC, measured the expression of PD-L1, and recorded overall survival (OS) and other clinical outcomes. RESULTS In our cohort, there were 18 (7.5%) MMR-D (MLH1, MSH2, MSH6, and PMS2) patients, including 12 with papillary TC (PTC) (6.7%), 2 with poorly differentiated TC (PDTC) (4.7%), and 4 with anaplastic TC (ATC) (22.2%). Half of them (9/18) showed a specific deletion in MSH6, and 6 of them also carried variants in the MSH6 and PMS2 gene. Survival was significantly better in patients with MMR-D ATC than in those with MMR-I tumors (p = 0.033). Four of the 18 MMR-D patients (22%) were found to be PD-L1 positive. Their OS was much shorter than that of PD-L1-negative patients. CONCLUSIONS MMR-D and PD-L1 positivity appear to be associated with clinicopathological characteristics and prognosis in TC. The results indicate that MMR status may have important prognostic significance in TC. Therefore, immune checkpoint inhibitors that target the PD-1/PD-L1 pathway may be a treatment option for TCs.
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Affiliation(s)
- Pei-Pei Qiao
- Ningxia Medical University, Yinchuan, 750004, China
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
| | - Kai-Sai Tian
- Ningxia Medical University, Yinchuan, 750004, China
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
| | - Li-Tao Han
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Ben Ma
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Cen-Kai Shen
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Run-Yu Zhao
- Ningxia Medical University, Yinchuan, 750004, China
| | - Yi Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Pudong New Area Gongli Hospital, Shanghai, 200135, China
| | - Wen-Jun Wei
- Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| | - Xiao-Ping Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Pudong New Area Gongli Hospital, Shanghai, 200135, China.
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Mio C, Verrienti A, Pecce V, Sponziello M, Damante G. Rare germline variants in DNA repair-related genes are accountable for papillary thyroid cancer susceptibility. Endocrine 2021; 73:648-657. [PMID: 33821390 PMCID: PMC8325654 DOI: 10.1007/s12020-021-02705-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 03/19/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Understanding the molecular mechanisms underlying papillary thyroid cancer (PTC) proved to be vital not only for diagnostic purposes but also for tailored treatments. Despite the strong evidence of heritability, only a small subset of alterations has been implicated in PTC pathogenesis. To this reason, we used targeted next-generation sequencing (NGS) to identify candidate variants implicated in PTC pathogenesis, progression, and invasiveness. METHODS A total of 42 primary PTC tissues were investigated using a targeted next-generation sequencing (NGS) panel enlisting 47 genes involved in DNA repair and tumor progression. RESULTS We identified 57 point mutations in 78.5% of samples (n = 32). Thirty-two somatic mutations were identified exclusively in known thyroid cancer genes (BRAF, KRAS, NRAS, and TERT). Unpredictably, 45% of the all identified mutations (n = 25) resulted to be germline, most affecting DNA repair genes. Interestingly, none of the latter variants was in the main population databases. Following ACMG classification, 20% of pathogenic/likely pathogenic and 68% of variant of unknown significance were identified. CONCLUSIONS Overall, our results support the hypothesis that rare germline variants in DNA repair genes are accountable for PTC susceptibility. More data, including the segregation analysis in affected families, should be collected before definitely annotate these alterations and to establish their potential prognostic and treatment implications.
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Affiliation(s)
- Catia Mio
- Department of Medicine, University of Udine, 33100, Udine, Italy.
| | - Antonella Verrienti
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Valeria Pecce
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Marialuisa Sponziello
- Department of Translational and Precision Medicine, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Giuseppe Damante
- Department of Medicine, University of Udine, 33100, Udine, Italy
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de Almeida LC, Calil FA, Machado-Neto JA, Costa-Lotufo LV. DNA damaging agents and DNA repair: From carcinogenesis to cancer therapy. Cancer Genet 2021; 252-253:6-24. [DOI: 10.1016/j.cancergen.2020.12.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/30/2020] [Accepted: 12/02/2020] [Indexed: 02/09/2023]
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Micronuclei Formation upon Radioiodine Therapy for Well-Differentiated Thyroid Cancer: The Influence of DNA Repair Genes Variants. Genes (Basel) 2020; 11:genes11091083. [PMID: 32957448 PMCID: PMC7565468 DOI: 10.3390/genes11091083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/07/2020] [Accepted: 09/15/2020] [Indexed: 12/13/2022] Open
Abstract
Radioiodine therapy with 131I remains the mainstay of standard treatment for well-differentiated thyroid cancer (DTC). Prognosis is good but concern exists that 131I-emitted ionizing radiation may induce double-strand breaks in extra-thyroidal tissues, increasing the risk of secondary malignancies. We, therefore, sought to evaluate the induction and 2-year persistence of micronuclei (MN) in lymphocytes from 26 131I-treated DTC patients and the potential impact of nine homologous recombination (HR), non-homologous end-joining (NHEJ), and mismatch repair (MMR) polymorphisms on MN levels. MN frequency was determined by the cytokinesis-blocked micronucleus assay while genotyping was performed through pre-designed TaqMan® Assays or conventional PCR-restriction fragment length polymorphism (RFLP). MN levels increased significantly one month after therapy and remained persistently higher than baseline for 2 years. A marked reduction in lymphocyte proliferation capacity was also apparent 2 years after therapy. MLH1 rs1799977 was associated with MN frequency (absolute or net variation) one month after therapy, in two independent groups. Significant associations were also observed for MSH3 rs26279, MSH4 rs5745325, NBN rs1805794, and tumor histotype. Overall, our results suggest that 131I therapy may pose a long-term challenge to cells other than thyrocytes and that the individual genetic profile may influence 131I sensitivity, hence its risk-benefit ratio. Further studies are warranted to confirm the potential utility of these single nucleotide polymorphisms (SNPs) as radiogenomic biomarkers in the personalization of radioiodine therapy.
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Orois A, Badenas C, Reverter JL, López V, Potrony M, Mora M, Halperin I, Oriola J. Lack of Mutations in POT1 Gene in Selected Families with Familial Non-Medullary Thyroid Cancer. Discov Oncol 2020; 11:111-116. [PMID: 32172474 DOI: 10.1007/s12672-020-00383-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 03/04/2020] [Indexed: 12/16/2022] Open
Abstract
To date, the genes involved in familial non-medullary thyroid cancer (FNMTC) remain poorly understood, with the exception of syndromic cases of FNMTC. It has been proposed that germline mutations in telomere-related genes, such as POT1, described in familial melanoma might also predispose individuals to thyroid cancer, requiring further research. We aimed to identify germline mutations in POT1 in selected FNMTC families (with at least three affected members) without a history of other cancers or other features, and to describe the clinical characteristics of these families. Sequencing of the 5'UTR and coding regions of POT1 was performed in seven affected people (index cases) from seven families with FNMTC. In addition, we performed whole-exome sequencing (WES) of DNA from 10 affected individuals belonging to four of these families. We did not find germline variants of interest in POT1 by Sanger sequencing or WES. We neither found putative causative mutations in genes previously described as candidate genes for FNMTC in the 4 families studied by WES. In our study, no germline potentially pathogenic mutations were detected in POT1, minimizing the possibilities that this gene could be substantially involved in non-syndromic FNMTC.
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Affiliation(s)
- Aida Orois
- Department of Endocrinology and Nutrition, ICMDM, Hospital Clinic de Barcelona, C/Villarroel 170, 08036, Barcelona, Spain. .,Department of Endocrinology and Nutrition, Hospital Universitari Mútua de Terrassa, 08221, Terrassa, Spain.
| | - Celia Badenas
- Department of Biochemistry and Molecular Genetics, CDB, Hospital Clínic de Barcelona, 08036, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Jordi L Reverter
- Department of Endocrinology and Nutrition, Germans Trias i Pujol Health Science Research Institute and Hospital, Universitat Autònoma de Barcelona, 08196, Badalona, Spain
| | - Verónica López
- Department of Biochemistry and Molecular Genetics, CDB, Hospital Clínic de Barcelona, 08036, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Miriam Potrony
- Department of Biochemistry and Molecular Genetics, CDB, Hospital Clínic de Barcelona, 08036, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Mireia Mora
- Department of Endocrinology and Nutrition, ICMDM, Hospital Clinic de Barcelona, C/Villarroel 170, 08036, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036, Barcelona, Spain.,Faculty of Medicine, University of Barcelona, 08007, Barcelona, Spain.,Centro de Investigación Biomédica en Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Irene Halperin
- Department of Endocrinology and Nutrition, ICMDM, Hospital Clinic de Barcelona, C/Villarroel 170, 08036, Barcelona, Spain
| | - Josep Oriola
- Department of Biochemistry and Molecular Genetics, CDB, Hospital Clínic de Barcelona, 08036, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036, Barcelona, Spain.,Faculty of Medicine, University of Barcelona, 08007, Barcelona, Spain
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