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Savad S, Modarressi MH, Younesi S, Seifi-Alan M, Samadaian N, Masoomy M, Dianatpour M, Norouzi S, Amidi S, Boroumand A, Ashrafi MR, Ronagh A, Eslami M, Hashemnejad M, Nourian S, Mohammadi S, Taheri Amin MM, Heidari M, Seifi-Alan M, Shojaaldini Ardakani H, Aghamahdi F, Khalilian S, Ghafouri-Fard S. A Comprehensive Overview of NF1 Mutations in Iranian Patients. Neuromolecular Med 2024; 26:28. [PMID: 38954284 DOI: 10.1007/s12017-024-08790-5] [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: 03/16/2024] [Accepted: 04/30/2024] [Indexed: 07/04/2024]
Abstract
Neurofibromatosis type 1 (NF1) is a genetic disorder caused by mutations in the NF1 gene. This disorder shows nearly complete penetrance and high phenotypic variability. We used the whole-exome sequencing technique to identify mutations in 32 NF1 cases from 22 Iranian families. A total of 31 variants, including 30 point mutations and one large deletion, were detected. In eight cases, variants were inherited, while they were sporadic in the remaining. Seven novel variants, including c.5576 T > G, c.6658_6659insC, c.2322dupT, c.92_93insAA, c.4360C > T, c.3814C > T, and c.4565_4566delinsC, were identified. The current study is the largest in terms of the sample size of Iranian NF1 cases with identified mutations. The results can broaden the spectrum of NF1 mutations and facilitate the process of genetic counseling in the affected families.
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Affiliation(s)
| | | | - Sarang Younesi
- Prenatal Screening Department, Nilou Laboratory, Tehran, Iran
| | - Mahnaz Seifi-Alan
- Cardiovascular Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | | | - Mona Masoomy
- Applied Biotechnology Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mehdi Dianatpour
- Stem Cell and Transgenic Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Human Genetic, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | | | | | - Mahmoud Reza Ashrafi
- Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Ataxia Clinic, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Ronagh
- Department of Pediatrics Neurologists, Shahid Bahonar Hospital, Alborz University of Medical Sciences, Karaj, Iran
| | - Maryam Eslami
- Applied Biotechnology Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Department of Genetics, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Maryam Hashemnejad
- Department of Obstetrics and Gynecology, School of Medicine, Kamali Hospital, Alborz University of Medical Sciences, Karaj, Iran
| | - Shahab Nourian
- Department of Pediatrics Endocrinology and Metabolisms, Emam Ali Hospital, Alborz University of Medical Sciences and Health Services, Karaj, Iran
| | - Sanaz Mohammadi
- Comprehensive Medical Genetics Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Morteza Heidari
- Pediatric Neurology Division, Children's Medical Center, Pediatrics Center of Excellence, Ataxia Clinic, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahin Seifi-Alan
- Cardiovascular Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | | | - Fatemeh Aghamahdi
- Department of Pediatrics, Alborz University of Medical Sciences, Karaj, Iran
| | - Sheyda Khalilian
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Gao M, Liu H, Sun Q, Yang G. The gene diagnosis of neurofibromatosis type I with headache as the main symptom: A case report and review of the literature. Front Neurol 2022; 13:874613. [PMID: 35979058 PMCID: PMC9376313 DOI: 10.3389/fneur.2022.874613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
Neurofibromatosis type I (NF1) is an autosomal dominant disease. Some NF1 patients experience atypical clinical manifestations, genetic testing is not widely available, and the types of mutations vary; thus, they are prone to misdiagnosis and missed diagnosis. Although headache is not included in the diagnostic criteria for NF1, the incidence of headache in NF1 patients is not low. We report an NF1 family in which the proband presented with prominent headache and atypical clinical presentation, with limited skin pigmentation. We identified a frameshift mutation (c.1541_1542del, p. Q514Rfs*) in the NF1 gene by whole-exome sequencing of this family, and the patients were diagnosed with NF1. We hope to attract the attention of clinicians to these patients and improve genetic testing as soon as possible to increase the diagnosis rate.
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Affiliation(s)
- Ming Gao
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, China
| | - Haokun Liu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
| | - Qiying Sun
- Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, China
| | - Guang Yang
- Department of General Medicine, Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Guang Yang
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Suarez-Kelly LP, Yu L, Kline D, Schneider EB, Agnese DM, Carson WE. Increased breast cancer risk in women with neurofibromatosis type 1: a meta-analysis and systematic review of the literature. Hered Cancer Clin Pract 2019; 17:12. [PMID: 30962859 PMCID: PMC6434896 DOI: 10.1186/s13053-019-0110-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 03/08/2019] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Neurofibromatosis type 1 (NF1) is a cancer predisposing syndrome. Studies suggest that women < 50 years old (y.o.) with NF1 have an increased breast cancer (BC) incidence and BC associated mortality. However, this has not been widely recognized secondary to small study populations. METHODS A systematic literature review was conducted through database searches for BC and NF1: 3456 articles identified, 166 reviewed, 58 used for descriptive analysis and 4 utilized for meta-analysis. Fisher's exact tests, Kaplan-Meier curves and random-effects meta-analysis models were used for analysis. RESULTS Two hundred eighty-six cases of NF1 and female BC were identified with a median age of 46 years at diagnosis; 53% were < 50. Peak age of BC diagnosis was between 34 to 44 years. Women < 50 y.o. presented with more advanced disease vs. those ≥50 (56% vs. 22% stage III-IV, respectively; p = 0.005). Median survival for the entire cohort was 5 years vs. the reported median BC survival of over 20 years in the general population using the SEER database. Median age at BC death was 48.5 years; 64% of deceased patients were < 50. Meta-analysis of a total of 4178 women with NF1 revealed a BC standardized incidence ratio (SIR) of 3.07 (95%CI 2.16-4.38) for women with NF1 vs. the general population. Women < 50 y.o. demonstrated a higher SIR of 5.08 (95%CI 3.77-6.81) compared to 1.92 (95%CI 1.40-2.63) if ≥50 y.o. CONCLUSIONS This systematic literature review and meta-analysis suggests that women with NF1 < 50 y.o. have a five-fold increased risk of BC, present with more advanced disease, and may have an increased BC related mortality. Increased awareness and implementation of recent National Comprehensive Cancer Network early BC screening guidelines for this high-risk patient population is essential. Additional evaluation on the influence of NF1 gene mutations identified in patients undergoing hereditary cancer genetic testing on breast cancer risk in individuals without clinical evidence of NF1 is needed.
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Affiliation(s)
- Lorena P. Suarez-Kelly
- Division of Surgical Oncology, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210 USA
| | - Lianbo Yu
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210 USA
| | - David Kline
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210 USA
| | - Eric B. Schneider
- Division of Critical Care, Trauma & Burn, Department of Surgery, The Ohio State University, Columbus, OH 43210 USA
| | - Doreen M. Agnese
- Division of Surgical Oncology, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210 USA
| | - William E. Carson
- Division of Surgical Oncology, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210 USA
- The Arthur G. James Comprehensive Cancer Center and Richard J. Solove Research Institute, The Ohio State University, N924 Doan Hall 410 W. 10th Ave, Columbus, OH 43210-1228 USA
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Lopez T, Paolino G, Miraglia E, Iacovino C, De Luca A, Donati P, Calvieri S, Giustini S. Shagreen-patch in a NF1 patient with a new missense mutation. GIORN ITAL DERMAT V 2018; 154:223-224. [PMID: 29368848 DOI: 10.23736/s0392-0488.18.05724-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Teresa Lopez
- Department of Dermatology and Venereology, Policlinico Umberto I, Sapienza University, Rome, Italy
| | - Giovanni Paolino
- Department of Dermatology and Venereology, Policlinico Umberto I, Sapienza University, Rome, Italy
| | - Emanuele Miraglia
- Department of Dermatology and Venereology, Policlinico Umberto I, Sapienza University, Rome, Italy -
| | - Chiara Iacovino
- Department of Dermatology and Venereology, Policlinico Umberto I, Sapienza University, Rome, Italy
| | - Alessandro De Luca
- Unit of Molecular Genetics, IRCCS Casa Sollievo della Sofferenza Foundation, San Giovanni Rotondo, Foggia, Italy
| | - Pietro Donati
- Dermatopathological Laboratory, San Gallicano Dermatologic Institute, IRCCS, Rome, Italy
| | - Stefano Calvieri
- Department of Dermatology and Venereology, Policlinico Umberto I, Sapienza University, Rome, Italy
| | - Sandra Giustini
- Department of Dermatology and Venereology, Policlinico Umberto I, Sapienza University, Rome, Italy
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