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Akiyama M. Isolated autosomal recessive woolly hair/hypotrichosis: genetics, pathogenesis and therapies. J Eur Acad Dermatol Venereol 2021; 35:1788-1796. [PMID: 33988877 DOI: 10.1111/jdv.17350] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/16/2021] [Indexed: 01/05/2023]
Abstract
Isolated autosomal recessive woolly hair/hypotrichosis (ARWH) is a rare hereditary hair disease characterized by tightly curled sparse hair at birth or in early infancy. Patients with ARWH consist of genetically heterogeneous groups. Woolly hair autosomal recessive 1 (ARWH1) (MIM #278150), woolly hair autosomal recessive 2 (ARWH2) (MIM #604379) and woolly hair autosomal recessive 3 (ARWH3) (MIM #616760) are caused by mutations in LPAR6, LIPH and KRT25, respectively. In addition, nonsense variants in C3ORF52 (*611956) were identified in ARWH patients. The frequencies of the mutations in the causative genes in ARWH patients are thought to differ by ethnicity and country/geographical area. Large numbers of ARWH families with LIPH mutations have been described only in populations from Japan, Pakistan and the Volga-Ural region of Russia. In that region of Russia, most ARWH families have an extremely prevalent founder mutation, the deletion of exon 4, in LIPH. In the Pakistani population, 47.2% of ARWH families had the disease due to LIPH mutations and 52.8% of them carried LPAR6 mutations. The prevalent, recurrent LIPH mutation c.659_660delTA (p.Ile220Argfs*29) was found in more than half of Pakistani ARWH families with LIPH mutations. Most Japanese ARWH families (98.7%) harbour LIPH mutations, including the two highly prevalent, recurrent LIPH mutations c.736T>A (p.Cys246Ser) and c.742C>A (p.His248Asn). In ARWH patients whose disease was due to LIPH, LPAR6 or C3ORF52 mutations, the loss of function of LIPH, LPAR6 or C3ORF52 leads to reduced LIPH-LPA-LPAR6 signalling, resulting in the decreased transactivation of EGFR signalling and the phenotype of underdeveloped hairs. Our recent prospective interventional study suggests that topical minoxidil might be a promising treatment for ARWH due to LIPH mutations, although sufficiently effective treatments have not been established for ARWH yet.
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Affiliation(s)
- M Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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2
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Lv H, Li M, Cheng R. Novel small-insertion mutation in the LIPH gene in a patient with autosomal recessive woolly hair/hypotrichosis. J Dermatol 2020; 47:1445-1449. [PMID: 32901930 DOI: 10.1111/1346-8138.15581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 01/07/2023]
Abstract
Autosomal recessive woolly hair/hypotrichosis (ARWH/H) is a rare form of congenital alopecia, which can be caused by mutations in lipase H (LIPH), lysophosphatidic acid receptor 6 (LPAR6/P2RY5) or keratin 25 (KRT25) genes. We present a 32-year-old woman with typical clinical features of ARWH. Hair microscopy was performed to observe differences between the patient's hair and a normal sample. Next-generation sequencing was used to detect pathogenic mutations. Sanger sequencing was used to further confirm the mutations. Abnormal hair appearance was found by hair microscopy. A novel frame-shift mutation (NM_139248: c.686delinsGTAGAACCCAACCTGGCT: p.Asp229fs37X) and a reported mutation (NM_139248: exon6:c.T736A: p.C246S) in LIPH were identified in the patient. All reported mutations related to ARWH of various races were reviewed. Our study provides further evidence of the similarity of ARWH between the Chinese and Japanese population. A novel small-insertion mutation also expands the LIPH mutation spectrum.
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Affiliation(s)
- Hongli Lv
- Department of Dermatology, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Ming Li
- Department of Dermatology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Institute of Dermatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruhong Cheng
- Department of Dermatology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Institute of Dermatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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3
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Yanagida K, Valentine WJ. Druggable Lysophospholipid Signaling Pathways. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1274:137-176. [DOI: 10.1007/978-3-030-50621-6_7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Khan GM, Hassan N, Khan N, Humayun M, Khan K, Khaliq S, Rehman FU, Ahmed S, Shah K, Khan SA, Muhammad N, Wali A, Khan S, Basit S, Ayub M. Biallelic mutations in the
LPAR
6
gene causing autosomal recessive wooly hair/hypotrichosis phenotype in five Pakistani families. Int J Dermatol 2019; 58:946-952. [DOI: 10.1111/ijd.14480] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 02/25/2019] [Accepted: 04/11/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Ghulam M. Khan
- Institute of Biochemistry University of Balochistan Quetta Pakistan
| | - Noor Hassan
- Institute of Biochemistry University of Balochistan Quetta Pakistan
| | - Niamatullah Khan
- Department of Biotechnology & Genetic Engineering Kohat University of Science & Technology Kohat Khyber Pakhtunkhwa Pakistan
| | - Muhammad Humayun
- Department of Biotechnology & Genetic Engineering Kohat University of Science & Technology Kohat Khyber Pakhtunkhwa Pakistan
| | - Kafaitullah Khan
- Department of Microbiology University of Balochistan Quetta Pakistan
| | - Samira Khaliq
- Institute of Biochemistry University of Balochistan Quetta Pakistan
| | - Fazal U. Rehman
- Department of Microbiology University of Balochistan Quetta Pakistan
| | - Sheikh Ahmed
- Institute of Biochemistry University of Balochistan Quetta Pakistan
| | - Khadim Shah
- Department of Biotechnology COMSATS University Islamabad Abbottabad Campus Pakistan
| | - Sher A. Khan
- Department of Biotechnology & Genetic Engineering Kohat University of Science & Technology Kohat Khyber Pakhtunkhwa Pakistan
| | - Noor Muhammad
- Department of Biotechnology & Genetic Engineering Kohat University of Science & Technology Kohat Khyber Pakhtunkhwa Pakistan
| | - Abdul Wali
- Department of Biotechnology Faculty of Life Sciences & Informatics BUITEMS Quetta Pakistan
| | - Saadullah Khan
- Department of Biotechnology & Genetic Engineering Kohat University of Science & Technology Kohat Khyber Pakhtunkhwa Pakistan
| | - Sulman Basit
- Center for Genetics and Inherited Diseases Taibah University Almadinah Almadinah Saudi Arabia
| | - Muhammad Ayub
- Institute of Biochemistry University of Balochistan Quetta Pakistan
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5
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Ahmad F, Sharif S, Furqan Ubaid M, Shah K, Khan MN, Umair M, Azeem Z, Ahmad W. Novel sequence variants in the LIPH and LPAR6 genes underlies autosomal recessive woolly hair/hypotrichosis in consanguineous families. Congenit Anom (Kyoto) 2018; 58:24-28. [PMID: 28425126 DOI: 10.1111/cga.12226] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/18/2017] [Accepted: 04/16/2017] [Indexed: 11/29/2022]
Abstract
Autosomal-recessive woolly hair/hypotrichosis (ARWH/H) is a rare genetic disorder of hair caused by variants in the LIPH and LPAR6 genes. The disease is characterized by congenital tightly curled hair leading to sparse hair later in life. In the present report genetic characterization of three consanguineous families of Pakistani origin, displaying clinical features of ARWH/H, was performed. Haplotype and DNA sequence analysis of the LIPH gene revealed a novel homozygous nonsense variant (c.688C > T; p.Gln230*) in family A. In two other families, B and C, sequence analysis of the LPAR6 gene revealed a novel homozygous frameshift variant (c.68_69dupGCAT; p.Phe24Hisfs*29) and a previously reported missense variant (c.188A > T; p.Asp63Val), respectively. Taken together, our findings will expand the spectrum of variants reported in the LIPH and LPAR6 genes.
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Affiliation(s)
- Farooq Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - Salma Sharif
- Department of Zoology, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | | | - Khadim Shah
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - Muhammad Nasim Khan
- Department of Zoology, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | - Muhammad Umair
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - Zahid Azeem
- Azad Jammu and Kashmir Medical College, Muzaffarabad, Pakistan
| | - Wasim Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
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Mehmood S, Shah SH, Jan A, Younus M, Ahmad F, Ayub M, Ahmad W. Frameshift Sequence Variants in the Human Lipase-H Gene Causing Hypotrichosis. Pediatr Dermatol 2016; 33:e40-2. [PMID: 26645693 DOI: 10.1111/pde.12727] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Hypotrichosis is a condition of abnormal hair pattern characterized by sparse to absent hair on different parts of the body, including the scalp. The condition is often characterized by tightly curled woolly hairs, discoloration of hair, and development of multiple keratin filled cysts or papules on the body. Sequence analysis of the lipase H (LIPH) gene, mapped on chromosome 3q27.3, led to the identification of a novel frameshift deletion variant (c.932delC, p.Pro311Leufs*3) in one family and previously reported 2-bp deletion (c.659_660delTA) in five other families, inherited hypotrichosis, and woolly hair in an autosomal recessive pattern. The study further extends the body of evidence that sequence variants in the LIPH gene result in hypotrichosis and woolly hair phenotype.
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Affiliation(s)
- Sabba Mehmood
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University Islamabad, Islamabad, Pakistan
| | - Sayed Hajan Shah
- Center for Human Genetics and Molecular Medicine, Sindh Institute of Urology and Transplantation, Karachi, Pakistan
| | - Abid Jan
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University Islamabad, Islamabad, Pakistan
| | - Muhammad Younus
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University Islamabad, Islamabad, Pakistan
| | - Farooq Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University Islamabad, Islamabad, Pakistan
| | - Muhammad Ayub
- Institute of Biochemistry, University of Baluchistan, Quetta, Pakistan
| | - Wasim Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University Islamabad, Islamabad, Pakistan
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Ahmad F, Ansar M, Mehmood S, Izoduwa A, Lee K, Nasir A, Abrar M, Mehmood S, Ullah A, Aziz A, Smith JD, Shendure J, Bamshad MJ, Nicekrson DA, Santos-Cortez RLP, Leal SM, Ahmad W. A novel missense variant in the PNPLA1 gene underlies congenital ichthyosis in three consanguineous families. J Eur Acad Dermatol Venereol 2015; 30:e210-e213. [PMID: 26691440 DOI: 10.1111/jdv.13540] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- F Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - M Ansar
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - S Mehmood
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - A Izoduwa
- Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - K Lee
- Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - A Nasir
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - M Abrar
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - S Mehmood
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - A Ullah
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - A Aziz
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan
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- Department of Genome Sciences, University of Washington, Seattle, Washington, USA
| | - J D Smith
- Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - J Shendure
- Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - M J Bamshad
- Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - D A Nicekrson
- Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - R L P Santos-Cortez
- Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - S M Leal
- Department of Molecular and Human Genetics, Center for Statistical Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - W Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University (QAU), Islamabad, Pakistan.,Pakistan Academy of Sciences (PAS), Islamabad, Pakistan
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8
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Jan A, Basit S, Wakil SM, Ramzan K, Ahmad W. A novel homozygous variant in the dsp gene underlies the first case of non-syndromic form of alopecia. Arch Dermatol Res 2015; 307:793-801. [DOI: 10.1007/s00403-015-1590-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Revised: 05/31/2015] [Accepted: 06/29/2015] [Indexed: 02/04/2023]
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9
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Hayashi R, Inui S, Farooq M, Ito M, Shimomura Y. Expression studies of a novel splice site mutation in theLIPHgene identified in a Japanese patient with autosomal recessive woolly hair. J Dermatol 2014; 41:890-4. [DOI: 10.1111/1346-8138.12623] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 08/08/2014] [Indexed: 12/11/2022]
Affiliation(s)
- Ryota Hayashi
- Division of Dermatology; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
- Laboratory of Genetic Skin Diseases; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - Shigeki Inui
- Department of Regenerative Dermatology; Osaka University Graduate School of Medicine; Suita Japan
| | - Muhammad Farooq
- Laboratory of Genetic Skin Diseases; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - Masaaki Ito
- Division of Dermatology; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - Yutaka Shimomura
- Laboratory of Genetic Skin Diseases; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
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