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Balinisteanu I, Caba L, Florea A, Popescu R, Florea L, Ungureanu MC, Leustean L, Gorduza EV, Preda C. Unlocking the Genetic Secrets of Acromegaly: Exploring the Role of Genetics in a Rare Disorder. Curr Issues Mol Biol 2024; 46:9093-9121. [PMID: 39194755 DOI: 10.3390/cimb46080538] [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: 07/16/2024] [Revised: 08/14/2024] [Accepted: 08/18/2024] [Indexed: 08/29/2024] Open
Abstract
Acromegaly is a rare endocrine disorder characterized by the excessive production of growth hormone (GH) in adulthood. Currently, it is understood that certain pituitary neuroendocrine tumors (PitNETs) exhibit a hereditary predisposition. These tumors' genetic patterns fall into two categories: isolated and syndromic tumors. The isolated forms are characterized by molecular defects that predispose exclusively to PitNETs, including familial isolated pituitary adenomas (FIPAs) and sporadic genetic defects not characterized by hereditary predisposition. All the categories involve either germline or somatic mutations, or both, each associated with varying levels of penetrance and different phenotypes. This highlights the importance of genetic testing and the need for a more comprehensive view of the whole disease. Despite the availability of multiple treatment options, diagnosis often occurs after several years, and management is still difficult. Early detection and intervention are crucial for preventing complications and enhancing the quality of life for affected individuals. This review aims to elucidate the molecular, clinical, and histological characteristics of GH-secreting PitNETs, providing insights into their prevalence, treatment nuances, and the benefits of genetic testing for each type of genetic disorder associated with acromegaly.
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Affiliation(s)
- Ioana Balinisteanu
- Endocrinology Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Lavinia Caba
- Medical Genetics Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Andreea Florea
- Medical Genetics Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Roxana Popescu
- Medical Genetics Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Laura Florea
- Nephrology-Internal Medicine Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Maria-Christina Ungureanu
- Endocrinology Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Letitia Leustean
- Endocrinology Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Eusebiu Vlad Gorduza
- Medical Genetics Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Cristina Preda
- Endocrinology Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania
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Zhou J, Su X, Hu D, Zhang L, Chen C, Sun K, Zhang H, Liu Z. Molecular confirmation that fibrocartilaginous dysplasia is a variant of fibrous dysplasia. J Clin Pathol 2024:jcp-2024-209626. [PMID: 39153849 DOI: 10.1136/jcp-2024-209626] [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: 05/01/2024] [Accepted: 07/29/2024] [Indexed: 08/19/2024]
Abstract
AIMS Fibrocartilaginous dysplasia (FCD) is a subvariant of fibrous dysplasia (FD). This study aims to retrospectively elucidate the clinicopathological and separate genetic features of the cartilaginous and fibro-osseous components of FCD. METHODS In total, 24 patients (14 men and 10 women) with FCD were included in our cohort. The diagnosis was confirmed morphologically and immunohistochemically, and genetic features were determined via Sanger sequencing. RESULTS Five patients were polyostotic, and 19 were monostotic, predominantly concerning the femur. Radiography revealed a well-demarcated ground glass appearance with ring-like or scattered calcification. Histologically, the lesions were characterised by proliferative fibroblasts, immature woven bone and highly differentiated hyaline cartilage. The fibro-osseous components exhibited positive immunoreaction with SATB2 and a low Ki-67 proliferation index. The fibro-osseous and cartilaginous components shared mutations at codon 201 in exon 8 of the guanine nucleotide-binding protein/a-subunit (GNAS) gene, specifically CGT>CAT (p.R201H) in four patients and the wild-type isocitrate dehydrogenase (IDH)1/IDH2 gene. Telomerase reverse transcriptase (TERT) promoter mutations (C288T and C229G) occurred in both fibro-osseous and cartilaginous components in two patients. CONCLUSIONS FCD encompasses areas of conventional FD with additional cartilage. Importantly, the presence or absence of mutations in the GNAS gene and/or the TERT promoter is common between the fibro-osseous and cartilaginous components of the disease. These results further confirmed FCD as a variant of FD.
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Affiliation(s)
- Juan Zhou
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Comprehensive Oncology Center of Bone and Soft Tissue, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, Shanghai, China
| | - Xuling Su
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Comprehensive Oncology Center of Bone and Soft Tissue, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, Shanghai, China
| | - Dingjun Hu
- Department of Radiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Zhang
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Comprehensive Oncology Center of Bone and Soft Tissue, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, Shanghai, China
| | - Chunyan Chen
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Comprehensive Oncology Center of Bone and Soft Tissue, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, Shanghai, China
| | - Keyang Sun
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Comprehensive Oncology Center of Bone and Soft Tissue, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, Shanghai, China
| | - Huizhen Zhang
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Comprehensive Oncology Center of Bone and Soft Tissue, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, Shanghai, China
| | - Zhiyan Liu
- Department of Pathology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Comprehensive Oncology Center of Bone and Soft Tissue, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, Shanghai, China
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Zhang AB, Zhang JY, Xue J, Wu ZC, Xu ZX, Sun LS, Li TJ. The prevalence, diagnostic accuracy and genotype-phenotype correlation of GNAS mutations in fibrous dysplasia: a meta-analysis. Front Genet 2024; 15:1377716. [PMID: 39135681 PMCID: PMC11317392 DOI: 10.3389/fgene.2024.1377716] [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: 02/05/2024] [Accepted: 05/17/2024] [Indexed: 08/15/2024] Open
Abstract
Background There is inconsistent evidence regarding the accuracy of GNAS mutations identification for the diagnosis of FD/MAS. This study was performed to estimate the prevalence and diagnostic accuracy of GNAS mutations detection and to preliminarily investigate the genotype-phenotype correlation in FD patients. Methods Five electronic databases were searched from 1995 to 2024 using search terms related to GNAS and fibrous dysplasia. Observational studies of FD patients undergoing GNAS mutation detection in FD were included. Results A total of 878 FD patients were included. The pooled prevalence of GNAS mutations in FD based on the random effects model was 74% (95% CI = 64%-83%). Regarding diagnostic accuracy, a sensitivity of 0.83 (95% CI, 0.65-0.96), specificity of 0.99 (95% CI, 0.98-1.00) and the area under the receiver operating characteristic curve of 98.38% were found. Additionally, meta-analysis and Fisher's test showed the GNAS mutation types were significantly associated with FD types (OR = 3.51, 95% CI = 1.05 to 11.72; p < 0.05). Conclusion A high detection rate of GNAS mutations occurred in FD, and its detection is reliable for diagnosing FD. Additionally, GNAS mutation type was types were significantly associated with FD type. Systematic Review Registration Identifier CRD42024553469.
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Affiliation(s)
- Ao-Bo Zhang
- Department of Oral Pathology, Peking University School and Hospital of Stomatology and National Center of Stomatology and National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences (2019RU034), Beijing, China
| | - Jian-Yun Zhang
- Department of Oral Pathology, Peking University School and Hospital of Stomatology and National Center of Stomatology and National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences (2019RU034), Beijing, China
| | - Jiang Xue
- Department of Oral Pathology, Peking University School and Hospital of Stomatology and National Center of Stomatology and National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences (2019RU034), Beijing, China
| | - Zhen-Chao Wu
- Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Zhi-Xiu Xu
- Department of Oral Pathology, Peking University School and Hospital of Stomatology and National Center of Stomatology and National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
| | - Li-Sha Sun
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
- National Clinical Research Center for Oral Diseases and National Engineering Laboratory for Digital and Material Technology of Stomatology and Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Tie-Jun Li
- Department of Oral Pathology, Peking University School and Hospital of Stomatology and National Center of Stomatology and National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences (2019RU034), Beijing, China
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Puente Ruiz N, Valero Díaz de Lamadrid MC, Riancho JA. Etiology of hypophosphatemia in adults. Med Clin (Barc) 2024:S0025-7753(24)00392-0. [PMID: 39025772 DOI: 10.1016/j.medcli.2024.05.017] [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: 01/23/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 07/20/2024]
Abstract
Long-term hypophosphatemia, defined by serum phosphorus (P) levels <2.5mg/dL, impairs the development and quality of mineralized tissue of the skeletal, dental, and auditory systems. P homeostasis depends mainly on intestinal absorption and renal excretion. Hypophosphatemia may be due to the redistribution of P to the intracellular space, increased renal losses, or decreased intestinal absorption. Hypophosphatemia can be categorized as acute or chronic, depending on the time course. Most cases, either acute or chronic, are due to acquired causes. However, some chronic cases may have a genetic origin. Accurate and early diagnosis, followed by adequate treatment, is essential to limit its negative effects on the body.
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Affiliation(s)
- Nuria Puente Ruiz
- Servicio de Medicina Interna, Hospital Universitario Marqués de Valdecilla; Departamento de Medicina y Psiquiatría, Universidad de Cantabria; Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, España; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, ISCIII), Madrid, España.
| | - M Carmen Valero Díaz de Lamadrid
- Servicio de Medicina Interna, Hospital Universitario Marqués de Valdecilla; Departamento de Medicina y Psiquiatría, Universidad de Cantabria; Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, España
| | - José A Riancho
- Servicio de Medicina Interna, Hospital Universitario Marqués de Valdecilla; Departamento de Medicina y Psiquiatría, Universidad de Cantabria; Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, España; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, ISCIII), Madrid, España
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Puente N, Solis P, Riancho JA. Genetic causes of hypophosphatemia. Minerva Med 2024; 115:320-336. [PMID: 38727708 DOI: 10.23736/s0026-4806.24.09198-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Phosphate is a key component of mineralized tissues and is also part of many organic compounds. Phosphorus homeostasis depends especially upon intestinal absorption, and renal excretion, which are regulated by various hormones, such as PTH, 1,25-dihydroxyvitamin D, and fibroblast growth factor 23. In this review we provide an update of several genetic disorders that affect phosphate transporters through cell membranes or the phosphate-regulating hormones, and, consequently, result in hypophosphatemia.
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Affiliation(s)
- Nuria Puente
- Service of Internal Medicine, Hospital U. M. Valdecilla, University of Cantabria, Santander, Spain
- Department of Medicine and Psychiatry, University of Cantabria, Santander, Spain
- Valdecilla Research Institute, Santander, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, ISCIII), Madrid, Spain
| | - Pablo Solis
- Service of Internal Medicine, Hospital U. M. Valdecilla, University of Cantabria, Santander, Spain
| | - Jose A Riancho
- Service of Internal Medicine, Hospital U. M. Valdecilla, University of Cantabria, Santander, Spain -
- Department of Medicine and Psychiatry, University of Cantabria, Santander, Spain
- Valdecilla Research Institute, Santander, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, ISCIII), Madrid, Spain
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Ramírez-Rentería C, Hernández-Ramírez LC. Genetic diagnosis in acromegaly and gigantism: From research to clinical practice. Best Pract Res Clin Endocrinol Metab 2024; 38:101892. [PMID: 38521632 DOI: 10.1016/j.beem.2024.101892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/25/2024]
Abstract
It is usually considered that only 5% of all pituitary neuroendocrine tumours are due to inheritable causes. Since this estimate was reported, however, multiple genetic defects driving syndromic and nonsyndromic somatotrophinomas have been unveiled. This heterogeneous genetic background results in overlapping phenotypes of GH excess. Genetic tests should be part of the approach to patients with acromegaly and gigantism because they can refine the clinical diagnoses, opening the possibility to tailor the clinical conduct to each patient. Even more, genetic testing and clinical screening of at-risk individuals have a positive impact on disease outcomes, by allowing for the timely detection and treatment of somatotrophinomas at early stages. Future research should focus on determining the actual frequency of novel genetic drivers of somatotrophinomas in the general population, developing up-to-date disease-specific multi-gene panels for clinical use, and finding strategies to improve access to modern genetic testing worldwide.
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Affiliation(s)
- Claudia Ramírez-Rentería
- Unidad de Investigación Médica en Enfermedades Endocrinas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Laura C Hernández-Ramírez
- Red de Apoyo a la Investigación, Universidad Nacional Autónoma de México, e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
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张 余, 罗 飞. [Recent advances in the genetic etiology of central precocious puberty]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2024; 26:302-307. [PMID: 38557384 PMCID: PMC10986386 DOI: 10.7499/j.issn.1008-8830.2309098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 01/29/2024] [Indexed: 04/04/2024]
Abstract
Central precocious puberty (CPP) is a developmental disorder caused by early activation of the hypothalamic-pituitary-gonadal axis. The incidence of CPP is rapidly increasing, but the underlying mechanisms are not fully understood. Previous studies have shown that gain-of-function mutations in the KISS1R and KISS1 genes and loss-of-function mutations in the MKRN3, LIN28, and DLK1 genes may lead to early initiation of pubertal development. Recent research has also revealed the significant role of epigenetic factors such as DNA methylation and microRNAs in the regulation of gonadotropin-releasing hormone neurons, as well as the modulating effect of gene networks involving multiple variant genes on pubertal initiation. This review summarizes the genetic etiology and pathogenic mechanisms underlying CPP.
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Song K, Shrestha R, Delaney H, Vijjhalwar R, Turner A, Sanchez M, Javaid MK. Diagnostic journey for individuals with fibrous dysplasia / McCune albright syndrome (FD/MAS). Orphanet J Rare Dis 2024; 19:50. [PMID: 38326833 PMCID: PMC10851567 DOI: 10.1186/s13023-024-03036-w] [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: 07/03/2023] [Accepted: 01/19/2024] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND Reducing delayed diagnosis is a significant healthcare priority for individuals with rare diseases. Fibrous Dysplasia/ McCune Albright Syndrome (FD/MAS) is a rare bone disease caused by somatic activation mutations of NASA. FD/MAS has a broad clinical phenotype reflecting variable involvement of bone, endocrine and other tissues, distribution and severity. The variable phenotype is likely to prolong the diagnostic journey for patients further. AIM To describe the time from symptom onset to final diagnosis in individuals living with FDMAS. METHODS We used the UK-based RUDY research database ( www.rudystudy.org ), where patients self-report their diagnosis of FD/MAS. Participants are invited to complete the diagnostic journey based on the EPIRARE criteria. RESULTS 51 individuals diagnosed with FD/MAS were included in this analysis. Among them, 70% were female, and the median age was 51.0 years (IQR 34.5-57.5]. 12 (35%) individuals reported McCune Albright Syndrome, 11 (21.6%) craniofacial and 11(21.6%) for each of poly- and mono-ostotic FD and 6 (11.8%) did not know their type of FD/MAS. Pain was the commonest first symptom (58.8%), and 47.1% received another diagnosis before the diagnosis of FD/MAS. The median time to final diagnosis from the first symptom was two years with a wide IQR (1,18) and range (0-59 years). Only 12 (23.5%) of individuals were diagnosed within 12 months of their first symptoms. The type of FD/MAS was not associated with the reported time to diagnosis. Significant independent predictors of longer time to final diagnosis included older current age, younger age at first symptom and diagnosis after 2010. CONCLUSION Individuals with FDMAS have a variable time to diagnosis that can span decades. This study highlights the need for further research on how to improve diagnostic pathways within Orthopaedic and Ear, Nose and Throat (ENT)/Maxillofacial services. Our data provides a baseline to assess the impact of novel NHS diagnostic networks on reducing the diagnostic odyssey.
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Affiliation(s)
- Kaiyang Song
- Medical Sciences Division, University of Oxford, Headley Way, OX3 9DU, Oxford, USA.
| | | | | | - Rohit Vijjhalwar
- Medical Sciences Division, University of Oxford, Headley Way, OX3 9DU, Oxford, USA
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Vado Y, Manero-Azua A, Pereda A, Perez de Nanclares G. Choosing the Best Tissue and Technique to Detect Mosaicism in Fibrous Dysplasia/McCune-Albright Syndrome (FD/MAS). Genes (Basel) 2024; 15:120. [PMID: 38255009 PMCID: PMC10815810 DOI: 10.3390/genes15010120] [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: 12/15/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 01/24/2024] Open
Abstract
GNAS-activating somatic mutations give rise to Fibrous Dysplasia/McCune-Albright syndrome (FD/MAS). The low specificity of extra-skeletal signs of MAS and the mosaic status of the mutations generate some difficulties for a proper diagnosis. We studied the clinical and molecular statuses of 40 patients referred with a clinical suspicion of FD/MAS to provide some clues. GNAS was sequenced using both Sanger and Next-Generation Sequencing (NGS). We were able to identify the pathogenic variants in 25% of the patients. Most of them were identified in the affected tissue, but not in blood. Additionally, NGS demonstrated the ability to detect more patients with mosaicism (8/34) than Sanger sequencing (4/39). Even if in some cases, the clinical information was not complete, we confirmed that, as in previous works, when the patients were young children with a single manifestation, such as hyperpigmented skin macules or precocious puberty, the molecular diagnosis was usually negative. In conclusion, as FD/MAS is caused by mosaic variants, it is essential to use sensitive techniques that allow for the detection of low percentages and to choose the right tissue to study. When not possible, and due to the low positive genetic rate, patients with FD/MAS should only be genetically tested when the clinical diagnosis is really uncertain.
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Affiliation(s)
| | | | | | - Guiomar Perez de Nanclares
- Rare Disease Research Group, Molecular (Epi) Genetics Laboratory, Bioaraba Health Research Institute, Araba University Hospital, 01009 Vitoria-Gasteiz, Spain; (Y.V.); (A.M.-A.); (A.P.)
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