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Yu H, He X, Liu X, Zhang H, Shen Z, Shi Y, Liu X. A novel missense variant in cathepsin C gene leads to PLS in a Chinese patient: A case report and literature review. Mol Genet Genomic Med 2021; 9:e1686. [PMID: 33949806 PMCID: PMC8372118 DOI: 10.1002/mgg3.1686] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 03/01/2021] [Accepted: 03/23/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Papilon-Lefevre syndrome (PLS; OMIM 245000) is a rare autosomal recessive disease characterized by aggressive periodontitis and palmoplantar keratoderma. The prevalence of PLS in the general population is one to four cases per million. Although the etiology and pathogenic mechanisms underlying PLS remain largely unclear, existing evidence shows loss-of-function mutations of the cathepsin C gene (CTSC; OMIM 602365) could cause PLS. Here we found a novel variant of the CTSC gene in a Chinese PLS family and predicted the effect of the variant on the physic-chemical characters and tertiary structure of the protein. METHODS The 1-7 coding exons and exon-intron boundaries of CTSC gene of the proband and her family were amplified and sequenced directly, and Chromas was used to read sequencing files. Furthermore, the PolyPhen-2, PROVEAN, and Mutation Taster were utilized to predict the pathogenicity of the variant. Besides, the physic-chemical and structural characters of the protein were analyzed by ProtParam, ProtScale, and SWISS-MODEL. RESULTS Our study identified a novel homozygous variant c.763T>C (p.Cys255Arg) in exon 6 of the CTSC gene, and it was a likely pathogenic variant as predicted by PolyPhen-2, PROVEAN, and Mutation Taster. Moreover, ProtParam and Protscale revealed the variant increased the isoelectric point and hydrophilicity of the protein, and the SWISS-MODEL analysis suggested the variant was located in a critical domain for protein activity. CONCLUSION Our study analyzed a Chinese family with PLS and identified a novel missense variant in the CTSC gene. Besides, this study retrospectively summarized 113 variants of CTSC in the world and highlighted the features of 27 CTSC variants in Chinese PLS patients. In addition, this study paid much particular attention to the relationship between CTSC variants and different phenotypes.
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Affiliation(s)
- Hui Yu
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Jiangyou People's Hospital, Jiangyou, China
| | - Xun He
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.,Sichuan Provincial Institute of Dermatology and Venereology, Chengdu, China.,Department of Dermatology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Xiangqin Liu
- Department of Laboratory Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Houbin Zhang
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.,Department of Laboratory Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China.,Sichuan Provincial Key Laboratory for Human Disease Gene Study, Research Unit for Blindness Prevention of Chinese Academy of Medical Sciences (2019RU026), Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Zhu Shen
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.,Sichuan Provincial Institute of Dermatology and Venereology, Chengdu, China.,Department of Dermatology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Yi Shi
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.,Department of Laboratory Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China.,Sichuan Provincial Key Laboratory for Human Disease Gene Study, Research Unit for Blindness Prevention of Chinese Academy of Medical Sciences (2019RU026), Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Xiaoqi Liu
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.,Department of Laboratory Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China.,Sichuan Provincial Key Laboratory for Human Disease Gene Study, Research Unit for Blindness Prevention of Chinese Academy of Medical Sciences (2019RU026), Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
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Patil SM, Metkari SB, Shetty S, Thakkannavar S, Sarode SC, Sarode GS, Sengupta N, Patil S. Dental prosthetic rehabilitation of Papillon-Lefèvre syndrome: a case report. Clin Pract 2020; 10:1285. [PMID: 33042508 PMCID: PMC7520704 DOI: 10.4081/cp.2020.1285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/07/2020] [Indexed: 11/23/2022] Open
Abstract
Papillon-Lefèvre syndrome (PLS) is a rare disorder characterized by palmar plantar hyperkeratosis and rapidly progressive periodontitis with loss of deciduous and permanent dentition at an early age. It is reported to occur in 1 to 4 individuals per million people. This case report presents highlighting features of the rare PLS in a 17-year old male who complained of discomfort while mastication and it was accompanied with symmetrical, sharply demarcated erythematous plaques involving the skin of the palms and soles, which extended to the finger joints, elbows, and knees. Along with the rough and dry skin, hyperhidrosis of lesion with a foul odor and transverse grooving of nails were noted. The past dental history revealed normal eruption of deciduous teeth followed by pre-mature mobility and shedding in 4-6 months. Permanent teeth also showed normal eruption and early shedding in the next 4-5 years. Complete edentulous maxillary and mandibular arches led to a decrease in alveolar bone and facial heights. There was no similar disorder in the patient’s family but family history revealed the consanguineous marriage of the patient’s parents.
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Affiliation(s)
- Shweta M Patil
- Department of Prosthodontics, Tatyasaheb Kore Dental College and Research Center, Kolhapur, Maharashtra, India
| | - Suryakant B Metkari
- Department of Oral Pathology and Microbiology, Tatyasaheb Kore Dental College and Research Center, Kolhapur, Maharashtra, India
| | - Shilpa Shetty
- Department of Conservative Dentistry, Tatyasaheb Kore Dental College and Research Center, Kolhapur, Maharashtra, India
| | - Savita Thakkannavar
- Department of Oral Pathology and Microbiology, Tatyasaheb Kore Dental College and Research Center, Kolhapur, Maharashtra, India
| | - Sachin C Sarode
- Department of Oral Pathology and Microbiology, Dr. D.Y. Patil Dental College and Hospital, Dr. D.Y. Patil Vidyapeeth, Pimpri, Pune, India
| | - Gargi S Sarode
- Department of Oral Pathology and Microbiology, Dr. D.Y. Patil Dental College and Hospital, Dr. D.Y. Patil Vidyapeeth, Pimpri, Pune, India
| | - Namrata Sengupta
- Department of Oral Pathology and Microbiology, Dr. D.Y. Patil Dental College and Hospital, Dr. D.Y. Patil Vidyapeeth, Pimpri, Pune, India
| | - Shankargouda Patil
- Department of Maxillofacial Surgery and Diagnostic Sciences, Division of Oral Pathology, College of Dentistry, Jazan University, Jazan, Saudi Arabia
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