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Hozhabrpour A, Mojbafan M, Palizban F, Vahidnezhad F, Talebi S, Amani M, Garshasbi M, Naghavi A, Khalesi R, Mansouri P, Sotoudeh S, Mahmoudi H, Varghaei A, Daneshpazhooh M, Karimi F, Zeinali S, Kalamati E, Uitto J, Youssefian L, Vahidnezhad H. DNA repair-related heritable photosensitivity syndromes: Mutation landscape in a multiethnic cohort of 17 multigenerational families with high degree of consanguinity. DNA Repair (Amst) 2024; 136:103633. [PMID: 38422792 DOI: 10.1016/j.dnarep.2024.103633] [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: 03/27/2023] [Revised: 12/30/2023] [Accepted: 01/19/2024] [Indexed: 03/02/2024]
Abstract
Inherited photosensitivity syndromes are a heterogeneous group of genetic skin disorders with tremendous phenotypic variability, characterized by photosensitivity and defective DNA repair, especially nucleotide excision repair. A cohort of 17 Iranian families with heritable photosensitivity syndromes was evaluated to identify their genetic defect. The patients' DNA was analyzed with either whole-exome sequencing or RNA sequencing (RNA-Seq). The interpretations of the genomic results were guided by genome-wide homozygosity mapping. Haplotype analysis was performed for cases with recurrent mutations. RNA-Seq, in addition to mutation detection, was also utilized to confirm the pathogenicity. Thirteen sequence variants, including six previously unreported pathogenic variants, were disclosed in 17 Iranian families, with XPC as the most common mutated gene in 10 families (59%). In one patient, RNA-Seq, as a first-tier diagnostic approach, revealed a non-canonical homozygous germline variant: XPC:c.413-9 T > A. The Sashimi plot showed skipping of exon 4 with dramatic XPC down-expression. Haplotype analysis of XPC:c.2251-1 G>C and XPC:1243 C>T in four families showed common haplotypes of 1.7 Mb and 2.6 Mb, respectively, denoting a founder effect. Lastly, two extremely rare cases were presented in this report: a homozygous UVSSA:c .1990 C>T was disclosed, and ERCC2-related cerebro-oculo-facio-skeletal (COFS) syndrome with an early childhood death. A direct comparison of our data with the results of previously reported cohorts demonstrates the international mutation landscape of DNA repair-related photosensitivity disorders, although population-specific differences were observed.
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Affiliation(s)
- Amir Hozhabrpour
- Department of Medical Genetics, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Marzieh Mojbafan
- Department of Medical Genetics, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Fahimeh Palizban
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | | | - Saeed Talebi
- Department of Medical Genetics, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Maliheh Amani
- Clinical Research Development Unit of Allameh Bohlool Gonabadi Hospital, Gonabad University of Medical Sciences, Gonabad, Iran; Department of Dermatology, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Masoud Garshasbi
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Anoosh Naghavi
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Raziyeh Khalesi
- Department of Medical Genetics, DeNA Laboratory, Tehran, Iran
| | - Parvin Mansouri
- Skin and Stem Cell Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Soheila Sotoudeh
- Department of Dermatology, Children's Medical Center, Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamidreza Mahmoudi
- Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Aida Varghaei
- Department of Dermatology, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Maryam Daneshpazhooh
- Department of Dermatology, Autoimmune Bullous Diseases Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | | | - Elnaz Kalamati
- Department of Obstetrics and Gynecology, Imam Zaman Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA; Department of Dermatology and Cutaneous Biology, Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA
| | - Leila Youssefian
- Department of Pathology and Laboratory Medicine, UCLA Clinical Genomics Center, University of California, Los Angeles, David Geffen School of Medicine, Los Angeles, CA, USA.
| | - Hassan Vahidnezhad
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA; Department of Dermatology and Cutaneous Biology, Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA; Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, USA; Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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2
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Park JS, Saeidian AH, Youssefian L, Kondratuk KE, Pride HB, Vahidnezhad H, Uitto J. Inherited ichthyosis as a paradigm of rare skin disorders: Genomic medicine, pathogenesis, and management. J Am Acad Dermatol 2023; 89:1215-1226. [PMID: 35963288 DOI: 10.1016/j.jaad.2022.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 08/02/2022] [Accepted: 08/05/2022] [Indexed: 11/26/2022]
Abstract
Great advances have been made in the field of heritable skin disorders using next-generation sequencing (NGS) technologies (ie, whole-genome sequencing, whole-exome sequencing, whole-transcriptome sequencing, and disease-targeted multigene panels). When NGS first became available, the cost and lack of access to these technologies were limiting factors; however, with decreasing sequencing costs and the expanding knowledge base of genetic skin diseases, fundamental awareness of NGS has become prudent. The heritable ichthyoses comprise a genotypically and phenotypically heterogeneous group of monogenic keratinization disorders characterized by persistent scaling, with at least 55 distinct genes currently implicated in causing nonsyndromic and syndromic forms of the disease. By providing a simplified overview of available NGS techniques and applying them in the context of ichthyosis, one of the most common genodermatoses, we hope to encourage dermatologists to offer, when appropriate, genetic testing earlier in patients with unsolved presentations. With the aid of NGS, dermatologists can provide diagnostic certainty in cases of suspected genodermatoses and offer potentially life-changing genome-guided and targeted therapies as they become available.
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Affiliation(s)
- Jason S Park
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Geisinger Commonwealth School of Medicine, Scranton, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Amir Hossein Saeidian
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Leila Youssefian
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | | | - Howard B Pride
- Department of Dermatology, Geisinger Medical Center, Danville, Pennsylvania
| | - Hassan Vahidnezhad
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania.
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania.
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3
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Aliazami F, Gilani S, Farhud D, Naraghi M, Afshari M, Eslami M. Epidemiology, etiology, genetic variants in non- syndromic hearing loss in Iran: A systematic review and meta-analysis. Int J Pediatr Otorhinolaryngol 2023; 168:111512. [PMID: 37086676 DOI: 10.1016/j.ijporl.2023.111512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 02/27/2023] [Accepted: 03/11/2023] [Indexed: 04/24/2023]
Abstract
OBJECTIVES Hearing loss is one of the most common heterogeneous complicated disorders worldwide. We previously analyzed the results of published data on non-syndromic hearing loss in the Iranian population systematically. A broad range of genes is a challenge for molecular screening and clinical diagnosis in our populations on the ground of distinct genetics. The aim of this study was to analyze the role and frequency of the variants accountable for non-syndromic hearing loss (NSHL) in the Iranian population. These were identified with different methods including whole exome sequencing (WES), next-generation sequencing (NGS), targeted genomic enrichment and massively parallel sequencing (TGE + MPS), autozygosity mapping, STR markers, linkage analysis, and direct sequencing. This is the comprehensively study focusing on classifying 13 common NSHL genes according to their frequencies. Previous studies have not studied different regions and the Iranian population, and this is the definitive study on the topic. METHODS We searched Scopus, PubMed, Science Direct databases, and Google Scholar. After a systematic review of the evidence 95 studies were considered then 31 studies were eligible for meta-analysis. In total, 6995 families, 358 variants, and 117 novel variants were included. Statistical analyses were conducted using Stata SE version 11 software. The inverse variance method enjoyed combining data. Heterogeneity of the preliminary results was assessed using Q (Cochrane test), and I square index. Random effects or fixed models were applied to combine the results, relying on the degree of heterogeneity. Point and pooled prevalence of variants acting on different regions were illustrated by forest plots. RESULTS The total prevalence of at least one variant of GJB2 and SLC26A genes was estimated at 26% and 5%, respectively. Variant c.35delG accounted for 18% of the GJB2 variants while 1% of these variants were novel ones. The next most common variants in the GJB2 gene were c.109G>A at 3.5% and c.-23+1G>A at 2.3%. Moreover, the prevalence of GJB2 gene variants varied on average 0.002% from one region to another in Iran (p=0.849). Our meta-analysis also showed that the frequency of at least one variant of MYO15A varied between 1.2% and 12.5%. Corresponding prevalences for the other variants were as follows: ILDR1 (3.5%-3.7%), CDH23 (2%-10%), PJVK (1.4%-33%), TECTA (1.3%-6.7%), MYO6 (2%-4.8%), TMC1 (1.8%-2%), MYO7A (0.7%-5%), MARVELD2 (0.7-5%), OTOF (0.7%-4%), LRTOMT (0.7%-2.5%). Finally, we did not find any relationship between geographic area and the presence of these variants. CONCLUSION GJB2 gene variants were the most common cause of NSHL in Iran. Understanding the prevalence of NSHL gene frequency in Iran may be the foundation for future studies in an Iranian population which may lead to future NSHL therapy.
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Affiliation(s)
- Farnoush Aliazami
- Department of Genetics, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Applied Biotechnology Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Sapideh Gilani
- Department of Surgery, Division of Otolaryngology, University of California, San Diego, 200 West Arbor Drive, MC 8654, San Diego, CA, 92103, United States.
| | - Dariush Farhud
- School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Department of Basic Sciences, Iranian Academy of Medical Sciences, Valiasr Sq., 22 Keshavarz Blvd, Tehran, 14, Iran.
| | - Mohsen Naraghi
- Department of Otorhinolaryngology-Head and Neck Surgery, TUMS School of Medicine, Rhinology Research Society, Orphans World Wide, 4411 Sunbeam Rd., Jacksonville, FL, 32257, United States.
| | - Mahdi Afshari
- Department of Community Medicine, School of Medicine, Zabol University of Medical Sciences, Rajaee Street, Zabol, Iran.
| | - Maryam Eslami
- Department of Genetics, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Applied Biotechnology Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
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4
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Xiang J, Sun X, Song N, Ramaswamy S, Abou Tayoun AN, Peng Z. Comprehensive interpretation of single-nucleotide substitutions in GJB2 reveals the genetic and phenotypic landscape of GJB2-related hearing loss. Hum Genet 2023; 142:33-43. [PMID: 36048236 DOI: 10.1007/s00439-022-02479-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 08/16/2022] [Indexed: 01/18/2023]
Abstract
Genetic variants in GJB2 are the most frequent cause of congenital and childhood hearing loss worldwide. The purpose of this study was to delineate the genetic and phenotypic landscape of GJB2 SNV variants. All possible single-nucleotide substitution variants of the coding region of GJB2 (N = 2043) were manually curated following the ACMG/AMP hearing loss guidelines. As a result, 60 (2.9%), 177 (8.7%), 1499 (73.4%), 301 (14.7%) and 6 (0.3%) of the variants were classified as pathogenic, likely pathogenic, variant of uncertain significance, likely benign, and benign, respectively. 53% (84/158) of the pathogenic/likely pathogenic missense variants were not present in ClinVar. The second transmembrane domain and the 310 helix were highly enriched for pathogenic missense variants, while the intracellular loops were tolerant to variation. The N-terminal tail and the extracellular loop showed high clustering of variants that are associated with syndromic or dominant non-syndromic hearing loss. In conclusion, our study interpreted all possible single-nucleotide substitution coding variants, characterized novel clinically significant variants in GJB2, and revealed significant genotype-phenotype correlations at this common hearing loss locus. Our work provides a prototype for other genes with similarly high genetic and phenotypic heterogeneity.
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Affiliation(s)
- Jiale Xiang
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.,BGI Genomics, BGI-Shenzhen, Shenzhen, 518083, China
| | | | - Nana Song
- BGI Genomics, BGI-Shenzhen, Shenzhen, 518083, China
| | - Sathishkumar Ramaswamy
- Al Jalila Genomics Center, Al Jalila Children's Specialty Hospital, Dubai, United Arab Emirates
| | - Ahmad N Abou Tayoun
- Al Jalila Genomics Center, Al Jalila Children's Specialty Hospital, Dubai, United Arab Emirates. .,Center for Genomic Discovery, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates.
| | - Zhiyu Peng
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China. .,BGI Genomics, BGI-Shenzhen, Shenzhen, 518083, China.
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5
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Youssefian L, Saeidian AH, Tavasoli AR, Kalamati E, Naghipoor K, Hozhabrpour A, Mesdaghi M, Saffarian Z, Mahmoudi H, Nabavi M, Shokri S, Zeinali S, Béziat V, Casanova JL, Jouanguy E, Uitto J, Vahidnezhad H. Recalcitrant Cutaneous Warts in a Family with Inherited ICOS Deficiency. J Invest Dermatol 2022; 142:2435-2445. [PMID: 35276224 PMCID: PMC9391267 DOI: 10.1016/j.jid.2022.02.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/16/2022] [Accepted: 02/23/2022] [Indexed: 10/18/2022]
Abstract
Recalcitrant warts, caused by human papillomaviruses (HPVs), can be a cutaneous manifestation of inborn error of immunity. This study investigated the clinical manifestations, immunodeficiency, single-gene susceptibility, and HPV repertoire in a consanguineous family with severe sinopulmonary infections and recalcitrant warts. Clinical and immunologic evaluations, including FACS and lymphocyte transformation test, provided evidence for immunodeficiency. Combined whole-exome sequencing and genome-wide homozygosity mapping were utilized to disclose candidate sequence variants. Whole-transcriptome sequencing was used to concomitantly investigate the HPV genotypes and the consequences of detected sequence variants in the host. The proband, a male aged 41 years, was found to be homozygous for the c.6delG, p.Lys2Asnfs∗17 variant in ICOS, encoding the inducible T-cell costimulator. This variant was located inside the 5 megabase of runs of homozygosity on 2q33.2. RNA sequencing confirmed the deleteriousness of the ICOS variant in three skin biopsies revealing significant downregulation of ICOS and its ligand, ICOSLG. Reads unaligned to the human genome were applied to 926 different viruses, and α-HPV57, β-HPV107, β-HPV14, and β-HPV17 were detected. Collectively, we describe a previously unrecognized inborn error of T-cell immunity to HPVs, indicating that autosomal recessive ICOS deficiency can underlie recalcitrant warts, emphasizing the immunologic underpinnings of recalcitrant warts at the nexus of human and viral genomic variation.
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Affiliation(s)
- Leila Youssefian
- Department of Dermatology & Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Amir Hossein Saeidian
- Department of Dermatology & Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Genetics, Genomics & Cancer Biology PhD Program, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Ali Reza Tavasoli
- Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Pediatric Neurology Division, Children's Medical Center, Pediatric Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Elnaz Kalamati
- Department of Obstetrics and Gynecology, Imam Zaman Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Karim Naghipoor
- Student Research Committee, Golestan University of Medical Sciences, Gorgan, Iran
| | - Amir Hozhabrpour
- Department of Medical Genetics and Molecular Biology, Faculty of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Mehrnaz Mesdaghi
- Department of Allergy and Clinical Immunology, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Saffarian
- Imam Khomeini Hospital, Tehran University of Medical Science, Tehran, Iran; Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamidreza Mahmoudi
- Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Nabavi
- Department of Allergy and Clinical Immunology, Rasool-E-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Sima Shokri
- Department of Allergy and Clinical Immunology, Rasool-E-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Sirous Zeinali
- Kawsar Human Genetics Research Center, Tehran, Iran; Department of Molecular Medicine, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Vivien Béziat
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, Rockefeller University, New York, New York, USA; Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Inserm U1163, Necker Hospital for Sick Children, Paris, France; Imagine Institute, Paris University, France
| | - Jean-Laurent Casanova
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, Rockefeller University, New York, New York, USA; Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Inserm U1163, Necker Hospital for Sick Children, Paris, France; Imagine Institute, Paris University, France; Pediatric Hematology and Immunology Unit, Necker Hospital for Sick Children, AP-HP, Paris, France; Howard Hughes Medical Institute, New York, New York, USA
| | - Emmanuelle Jouanguy
- St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, Rockefeller University, New York, New York, USA; Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Inserm U1163, Necker Hospital for Sick Children, Paris, France; Imagine Institute, Paris University, France
| | - Jouni Uitto
- Department of Dermatology & Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Hassan Vahidnezhad
- Department of Dermatology & Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
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6
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Youssefian L, Naji M, Park JS, Rajabi F, Abdollahimajd F, Mahmoudi H, Kamyab-Hesari K, Ghalamkarpour F, Zabihi M, Teimoorian M, Youssefian L, Zeinali S, Vahidnezhad H, Uitto J. Ichthyosis follicularis syndromes in patients with germline mutations in GJB2. Clin Exp Dermatol 2022; 47:1561-1566. [PMID: 35396755 DOI: 10.1111/ced.15217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2022] [Indexed: 11/29/2022]
Abstract
Ichthyosis follicularis (IF) manifests as generalized spiny follicular projections found in syndromic diseases secondary to SREBF1 and MBTPS2 mutations. We sought the genetic cause of IF in two distinct families from a cohort of 180 ichthyosis patients. In Family 1, the proband presented with IF, bilateral sensorineural hearing loss (SNHL) and punctate palmoplantar keratoderma, and compound heterozygous GJB2 mutations were discovered in DNA from peripheral blood lymphocytes: GJB2:c.526A>G and c.35delG. In Family 2, the proband presented with a previously unreported IF phenotype in the context of KID syndrome, and whole-exome sequencing found a de novo heterozygous GJB2:c.148G>A mutation. Histopathology was consistent with porokeratotic eccrine ostial and dermal duct nevus (PEODDN) and IF in Probands 1 and 2, respectively. Our findings add to the clinical and histopathological spectrum of IF and emphasize the association of PEODDN-like entities with GJB2 variants.
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Affiliation(s)
- Leila Youssefian
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.,Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Mahtab Naji
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Jason S Park
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.,Geisinger Commonwealth School of Medicine, Scranton, Pennsylvania, USA
| | - Fatemeh Rajabi
- Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Hamidreza Mahmoudi
- Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Kambiz Kamyab-Hesari
- Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Fariba Ghalamkarpour
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Zabihi
- Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mehrdad Teimoorian
- Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Laya Youssefian
- ENT and Head & Neck Research Center, The Five Senses Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Sirous Zeinali
- Kawsar Human Genetics Research Center, Tehran, Iran.,Department of Molecular Medicine, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Hassan Vahidnezhad
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.,Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.,Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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7
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Abstract
It is well known that electrical signals are deeply associated with living entities. Much of our understanding of excitable tissues is derived from studies of specialized cells of neurons or myocytes. However, electric potential is present in all cell types and results from the differential partitioning of ions across membranes. This electrical potential correlates with cell behavior and tissue organization. In recent years, there has been exciting, and broadly unexpected, evidence linking the regulation of development to bioelectric signals. However, experimental modulation of electrical potential can have multifaceted and pleiotropic effects, which makes dissecting the role of electrical signals in development difficult. Here, I review evidence that bioelectric cues play defined instructional roles in orchestrating development and regeneration, and further outline key areas in which to refine our understanding of this signaling mechanism.
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Affiliation(s)
- Matthew P. Harris
- Department of Genetics, Harvard Medical School, Department of Orthopaedics, Boston Children's Hospital, 300 Longwood Avenue Enders 260, Boston MA 02115, USA
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8
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Irurzun I, Natale MI, Agostinelli ML, Lamberti M, Montero D, Granda C, Mássimo JA, Manzur GB, Valinotto LE. Ichthyosis follicularis, atrichia and photophobia (IFAP) and hereditary mucoepithelial dysplasia: Two syndromes that share a common clinical spectrum. Pediatr Dermatol 2021; 38:568-574. [PMID: 33742461 DOI: 10.1111/pde.14560] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Ichthyosis follicularis, atrichia and photophobia syndrome (IFAP) is an X-linked inherited disease caused by pathogenic variants in the gene encoding the membrane-bound transcription factor peptidase, site 2 (MBTPS2). Clinical presentation includes ichthyosis follicularis, alopecia, photophobia and developmental delay. Hereditary mucoepithelial dysplasia (HMD) is a dominantly inherited disease characterized by keratitis, non-scarring alopecia, skin lesions including follicular keratosis, perineal erythema, and mucosal involvement. Recently, variants in SREBF1, a gene coding for a transcription factor related to cholesterol and fatty acid synthesis, have been associated with the disease. These two syndromes share a common clinical spectrum. Here, we describe an IFAP syndrome patient with a novel variant in the MBTPS2 gene and an HMD patient with a previously reported variant in the SREBF1 gene. In addition, we present a review of the literature describing the triad characterized by non-scarring alopecia, keratosis follicularis, and ocular symptoms common in both IFAP and HMD patients to raise awareness of these underdiagnosed diseases. We also highlight the subtle differences in clinical presentation between the two disorders to better enable differentiation.
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Affiliation(s)
- Inés Irurzun
- Dermatology Unit, Hospital de Niños Dr. Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Mónica I Natale
- Center in Investigation of Genodermatosis and Epidermolysis Bullosa (CEDIGEA), University of Buenos Aires, Buenos Aires, Argentina
| | | | - Magdalena Lamberti
- Dermatology Unit, Hospital de Niños Dr. Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Dolores Montero
- Dermatology Unit, Hospital de Niños Dr. Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Cecilia Granda
- Pathological Anatomy, Hospital de Niños Dr. Ricardo Gutiérrez, Buenos Aires, Argentina
| | - José A Mássimo
- Dermatology Unit, Hospital de Niños Dr. Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Graciela B Manzur
- Dermatology Unit, Hospital de Niños Dr. Ricardo Gutiérrez, Buenos Aires, Argentina.,Center in Investigation of Genodermatosis and Epidermolysis Bullosa (CEDIGEA), University of Buenos Aires, Buenos Aires, Argentina
| | - Laura E Valinotto
- Center in Investigation of Genodermatosis and Epidermolysis Bullosa (CEDIGEA), University of Buenos Aires, Buenos Aires, Argentina.,National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
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9
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Vahidnezhad H, Youssefian L, Faghankhani M, Mozafari N, Saeidian AH, Niaziorimi F, Abdollahimajd F, Sotoudeh S, Rajabi F, Mirsafaei L, Sani ZA, Liu L, Guy A, Zeinali S, Kariminejad A, Ho RT, McGrath JA, Uitto J. Arrhythmogenic right ventricular cardiomyopathy in patients with biallelic JUP-associated skin fragility. Sci Rep 2020; 10:21622. [PMID: 33303784 PMCID: PMC7729882 DOI: 10.1038/s41598-020-78344-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 11/09/2020] [Indexed: 12/04/2022] Open
Abstract
Arrhythmogenic right ventricular cardiomyopathy (ARVC), with skin manifestations, has been associated with mutations in JUP encoding plakoglobin. Genotype–phenotype correlations regarding the penetrance of cardiac involvement, and age of onset have not been well established. We examined a cohort of 362 families with skin fragility to screen for genetic mutations with next-generation sequencing-based methods. In two unrelated families, a previously unreported biallelic mutation, JUP: c.201delC; p.Ser68Alafs*92, was disclosed. The consequences of this mutation were determined by expression profiling both at tissue and ultrastructural levels, and the patients were evaluated by cardiac and cutaneous work-up. Whole-transcriptome sequencing by RNA-Seq revealed JUP as the most down-regulated gene among 21 skin fragility-associated genes. Immunofluorescence showed the lack of plakoglobin in the epidermis. Two probands, 2.5 and 22-year-old, with the same homozygous mutation, allowed us to study the cross-sectional progression of cardiac involvements in relation to age. The older patient had anterior T wave inversions, prolonged terminal activation duration (TAD), and RV enlargement by echocardiogram, and together with JUP mutation met definite ARVC diagnosis. The younger patient had no evidence of cardiac disease, but met possible ARVC diagnosis with one major criterion (the JUP mutation). In conclusion, we identified the same biallelic homozygous JUP mutation in two unrelated families with skin fragility, but cardiac findings highlighted age-dependent penetrance of ARVC. Thus, young, phenotypically normal patients with biallelic JUP mutations should be monitored for development of ARVC.
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Affiliation(s)
- Hassan Vahidnezhad
- Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA.,Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, 233 S. 10th Street, Suite 450 BLSB, Philadelphia, PA, 19107, USA.,Molecular Medicine Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Leila Youssefian
- Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA.,Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, 233 S. 10th Street, Suite 450 BLSB, Philadelphia, PA, 19107, USA.,Genetics, Genomics and Cancer Biology PhD Program, Thomas Jefferson University, Philadelphia, PA, USA.,Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoomeh Faghankhani
- Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA.,Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, 233 S. 10th Street, Suite 450 BLSB, Philadelphia, PA, 19107, USA
| | - Nikoo Mozafari
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir Hossein Saeidian
- Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA.,Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, 233 S. 10th Street, Suite 450 BLSB, Philadelphia, PA, 19107, USA.,Genetics, Genomics and Cancer Biology PhD Program, Thomas Jefferson University, Philadelphia, PA, USA
| | - Fatemeh Niaziorimi
- Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA.,Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, 233 S. 10th Street, Suite 450 BLSB, Philadelphia, PA, 19107, USA
| | | | - Soheila Sotoudeh
- Department of Dermatology, Children's Medical Center, Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran
| | - Fateme Rajabi
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Liaosadat Mirsafaei
- Cardiology Ward, Imam Sajjad Hospital, Mazandaran University of Medical Sciences, Mazandaran, Iran
| | - Zahra Alizadeh Sani
- CMR Department, Rajaei Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Lu Liu
- Viapath, St Thomas' Hospital, London, UK
| | - Alyson Guy
- Viapath, St Thomas' Hospital, London, UK
| | - Sirous Zeinali
- Molecular Medicine Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.,Kawsar Human Genetics Research Center, Tehran, Iran
| | | | - Reginald T Ho
- Division of Cardiology, Department of Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - John A McGrath
- St John's Institute of Dermatology, King's College London, Guy's Campus, London, UK
| | - Jouni Uitto
- Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA, USA. .,Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, 233 S. 10th Street, Suite 450 BLSB, Philadelphia, PA, 19107, USA.
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Asgari T, Naji M, Mansouri P, Mahmoudi H, Zabihi M, Youssefian L, Mahdavi M, Naraghi ZS, Zeinali S, Vahidnezhad H, Uitto J. Keratitis-ichthyosis-deafness syndrome: Phenotypic heterogeneity and treatment perspective of patients with p.Asp50Asn GJB2 mutation. Dermatol Ther 2020; 33:e14493. [PMID: 33136289 DOI: 10.1111/dth.14493] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 10/26/2020] [Indexed: 11/29/2022]
Abstract
Keratitis-ichthyosis-deafness (KID) syndrome is caused by mutations in the GJB2 gene encoding connexin 26, a component of transmembrane hemichannels which form gap junction channels, critical for cell-cell communication. Here, we report two patients from two distinct families with KID syndrome with the same GJB2 mutation (p.Asp50Asn); in both cases the mutation was de novo, as the parents depicted the wild-type allele only. The patients' cutaneous manifestations were strikingly different illustrating the wide spectrum of phenotype of these patients, even with the same GJB2 mutation. One of the patients was treated with acitretin with dramatic improvement in his skin findings, illustrating the role of oral acitretin in treatment of patients with KID syndrome. Collectively, these patients attest to the phenotypic spectrum of KID syndrome, with therapeutic perspective.
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Affiliation(s)
- Tina Asgari
- Department of Biology, Science, and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mahtab Naji
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.,Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Parvin Mansouri
- Skin and Stem Cell Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamidreza Mahmoudi
- Department of Dermatology, Tehran University of Medical Sciences, Razi Hospital, Tehran, Iran
| | | | - Leila Youssefian
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.,Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Mohammadreza Mahdavi
- Thalassemia Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Zahra Safaei Naraghi
- Departments of Dermatology and Pathology, Tehran University of Medical Sciences, Razi Hospital, Tehran, Iran
| | - Sirous Zeinali
- Kawsar Human Genetics Research Center, Tehran, Iran.,Department of Molecular Medicine, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Hassan Vahidnezhad
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.,Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.,Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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