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Li S, Su Y, Tian J, Wang K, Wang X, Ding L, Li C. The downregulation of SASH1 expression promotes breast cancer occurrence and invasion accompanied by the activation of PI3K-Akt-mTOR signaling pathway. Sci Rep 2024; 14:21914. [PMID: 39300116 PMCID: PMC11413226 DOI: 10.1038/s41598-024-72562-1] [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: 07/01/2024] [Accepted: 09/09/2024] [Indexed: 09/22/2024] Open
Abstract
SASH1 (SAM and SH3 domain containing 1) has been increasingly reported as a tumor suppressor gene. However, there is limited research on the role of SASH1 in breast cancer. This manuscript aims to investigate the mechanism of SASH1 in the occurrence, development, and prognosis of breast cancer. Firstly, we obtained RNA-sequencing data of the tumors from the Genomic Data Commons data portal website, along with the corresponding clinical information of patients. Pan-cancer analysis was performed to analyze the expression of SASH1 across all tumors. Univariate Cox regression analysis was used to assess the correlation between SASH1 expression and the prognosis of breast cancer patients. Then, immunohistochemistry was utilized to evaluate the expression levels of SASH1, p-Akt, p-PI3K, and p-mTOR in breast cancer tissue. Finally, a cell assay was employed to analyze the impact of SASH1 on the proliferation and invasion of breast cancer cells (MDA-MB-231). The results revealed that SASH1 expression is decreased in BRCA, LUSC, LUAD, CESC, ESCA, and COAD. Meta-analysis also found that SASH1 is downregulated in most tumor tissues, and the expression level of SASH1 in breast cancer was significantly lower than that in the control group (OR = 0.14, 95% CI = 0.08-0.25; P < 0.001). Further experimental validation showed that SASH1 expression is significantly downregulated in breast cancer tissue (38.33%, 23/60), and the overexpression of SASH1 can inhibit the proliferation and invasion of breast cancer cells accompanied by the suppression of PI3K-Akt-mTOR signaling pathway. Additionally, SASH1 overexpression can improve OS and RFS of breast cancer patients.
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Affiliation(s)
- Shu Li
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing, 401174, China
- Department of Clinical Laboratory, Chongqing Health Center for Women and Children, Chongqing, 401174, China
| | - Yan Su
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing, 401174, China
- Department of Clinical Laboratory, Chongqing Health Center for Women and Children, Chongqing, 401174, China
| | - Jun Tian
- Department of Clinical Laboratory, Yongchuan People's Hospital of Chongqing, Chongqing, 402160, China
| | - Ke Wang
- Department of Clinical Laboratory, Yongchuan People's Hospital of Chongqing, Chongqing, 402160, China
| | - Xiaotong Wang
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing, 401174, China
- Department of Obstetrics and Gynecology, Chongqing Health Center for Women and Children, Chongqing, 401174, China
| | - Lin Ding
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing, 401174, China
- Department of Clinical Laboratory, Chongqing Health Center for Women and Children, Chongqing, 401174, China
| | - Chunli Li
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing, 401174, China.
- Department of Clinical Laboratory, Chongqing Health Center for Women and Children, Chongqing, 401174, China.
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Xiong Y, Zeng Z, Liang T, Yang P, Lu Q, Yang J, Zhang J, Fang W, Luo P, Hu Y, Zhang M, Zhou D. Unequal crossing over between CYP11B2 and CYP11B1 causes 11 β -hydroxylase deficiency in a consanguineous family. J Steroid Biochem Mol Biol 2023; 233:106375. [PMID: 37572761 DOI: 10.1016/j.jsbmb.2023.106375] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/14/2023] [Accepted: 08/08/2023] [Indexed: 08/14/2023]
Abstract
Cytochrome P450 (CYP) family CYP11B2/CYP11B1 chimeric genes have been shown to arise from unequal crossing over of the genes encoding aldosterone synthase (CYP11B2) and 11β-hydroxylase (CYP11B1) during meiosis. The activity deficiency or impaired activity of aldosterone synthase and 11β-hydroxylase resulting from these chimeric genes are important reasons for 11β-hydroxylase deficiency (11β-OHD). Here,two patients with pseudoprecocious puberty and hypokalemia hypertension and three carriers in a consanguineous marriage family were studied. A single CYP11B2/CYP11B1 chimera consisting of the promoter and exons 1 through 5 of CYP11B2, exons 8 and 9 of CYP11B1, and a breakpoint consisting of part of exon 6 of CYP11B2 and part of exon 6, intron 6, and exon 7 of CYP11B1 were detected in the patients and carriers. At the breakpoint of the chimera, a c 0.1086 G > C ( p.Leu.362 =) synonymous mutation in exon 6 of CYP11B2, a c 0.1157 C>G(p. A386V) missense mutation in exon 7 of CYP11B1, and an intronic mutation in intron 6 were detected. The allele model of the CYP11B2/CYP11B1 chimera demonstrated homozygosity and heterozygosity in the patients and the carriers, respectively. Molecular docking and enzymatic activity analyses indicated that the CYP11B2/CYP11B1 chimeric protein interacted with the catalytic substrate of aldosterone synthase and had similar enzymatic activity to aldosterone synthase. Our study indicated that deletion of CYP11B1 and CYP11B2 abolished the enzymatic activity of 11 β-hydroxylase and aldosterone synthase; however, the compensation of the enzymatic activity of aldosterone synthase by the CYP11B2/CYP11B1 chimeric protein maintained normal aldosterone levels in vitro. All of the above findings explained the 11β-OHD phenotypes of the proband and patients in the family.
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Affiliation(s)
- Yu Xiong
- School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China
| | - Zhen Zeng
- School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China
| | - Tingting Liang
- Clinical College, Guizhou Medical University, Guiyang, Guizhou 550004, PR China; Endocrine Metabolism Department, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China
| | - Pingping Yang
- School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China
| | - Qingxiang Lu
- School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China
| | - Jingye Yang
- School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China; Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China
| | - Jing Zhang
- Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China
| | - Wen Fang
- School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou, 550004, PR China
| | - Panyu Luo
- Endocrine Metabolism Department, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China
| | - Ying Hu
- Endocrine Metabolism Department, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China
| | - Miao Zhang
- Endocrine Metabolism Department, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China.
| | - Ding'an Zhou
- Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China; Key Laboratory of Medical Molecular Biology,Guizhou province; Key Laboratory of Eedimic and Ethnic Disease, Ministry of Education; Key Laboratory of Medical Molecular Biology, Guizhou Medical University, PR China.
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3
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Zhou D, Yang P, Chen H. Retyping and molecular pathology diagnosis of dyschromatosis universalis hereditaria. Exp Dermatol 2023; 32:1334-1343. [PMID: 37353900 DOI: 10.1111/exd.14860] [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: 03/03/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 06/25/2023]
Abstract
Dyschromatosis universalis hereditaria (DUH) is characterized by diffuse symmetrically distributed hypopigmented macules mixed with hyperpigmentation. DUH is divided into three types by Online Mendelian inheritance in man (OMIM) that is, DUH1 (OMIM 127500), DUH2 (OMIM 612715) and DUH3 (OMIM 615402) according to the different linkage regions. Although each condition possesses corresponding phenotypic characteristics and the prognosis for each is somewhat different, these disorders are highly overlapped and difficult to differentiate in the clinical setting. Our latest study reveals a novel DUH subtype that presents a mild phenotype of pigmentation anomalies and is named PER3rs772027021 SNP related DUH or DUH4 by us, which make the DUH subtype can be further retyped. Heterozygous distribution or mosaic-like distribution of melanin is a newly discovered pathological features that is uniquely demonstrated in the affected layers of DUH1 and DUH4 patients. In this review, DUH is further divided into four subtypes according the causative genes and their mutational sites, and the mutation regions described in the previous reports. To make an accurate diagnosis, we suggest that Sanger sequencing or the target region sequencing (TRS) to the candidate causative genes related melanogenesis may be the most effective and convenient method of clinical diagnosis or/and prenatal diagnosis for DUH and DUH-like patients. More importantly, heterozygous distribution or mosaic-like distribution of melanin can be utilized for differential diagnosis of DUH. We also investigate the underlying molecular mechanism to form mosaic-like melanin in the affected layers of hyper- and/or hypo-pigmented macules from DUH1 and DUH4 patients. This review provides a molecular and pathological delineation of four types of DUH and aims to establish a concise diagnostic strategy to allow clinical dermatologists to make an accurate diagnosis.
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Affiliation(s)
- Ding'an Zhou
- Clinical Research Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, People's Republic of China
| | - Pingping Yang
- School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, People's Republic of China
| | - Hongyu Chen
- School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, People's Republic of China
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Yang Y, Jiang N, Mai JQ, Yang S, Xiao Y, Liu S. Uncovering a new SASH1 mutation associated with dyschromatosis universalis hereditaria using whole-exome-sequencing: A case report. Medicine (Baltimore) 2023; 102:e34448. [PMID: 37543808 PMCID: PMC10402963 DOI: 10.1097/md.0000000000034448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/07/2023] Open
Abstract
RATIONALE Dyschromatosis universalis hereditaria (DUH) is an uncommon form of pigmented genodermatosis that is typically inherited autosomally and dominantly. In the previous study, the pathogenic genes of DUH have been identified in ATP-binding cassette subfamily B, member 6 and SASH1. However, the mutational screening of the causative gene remains incomplete and still lacks sufficient proof in the etiology. PATIENT CONCERNS A 2-generation Chinese family clinically diagnosed with DUH were enrolled. They showed pigmented spots from their childhood and came to the hospital for medical advice and genetic analysis. We found a novel mutation c.1757T > C (p.I586T) of SASH1 in 3 affected family members by whole-exome sequencing. DIAGNOSES Genetic outcomes and clinical examinations confirmed the diagnosis of DUH in 3 family members with lentiginous syndrome. INTERVENTIONS AND OUTCOMES Using whole-exome sequencing and sanger sequencing technologies, we identified a novel mutation c.1757T > C (p.I586T) of SASH1 that co-segregated in 3 afflicted family members but not in the normal individuals. Significantly, c.1757T > C (p.I586T) is a novel mutation which had not been previously reported. The same codon position in SASH1 (c.1758C > G, p.I586M) has been reported in a Japanese man, and he showed identical phenotype compared to our study participants. LESSONS Our study broadens the spectrum of DUH mutations and provides more genetic characteristics of DUH in understanding its etiology. Furthermore, we demonstrated the diagnostic accuracy of whole-exome sequencing for inherited skin diseases and provided new information for etiological study.
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Affiliation(s)
- Yue Yang
- Department of Obstetrics and Gynecology, West China Second Hospital of Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Nan Jiang
- Department of Liver Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China
- West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Jing Qun Mai
- Department of Obstetrics and Gynecology, West China Second Hospital of Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Shuo Yang
- Department of Obstetrics and Gynecology, West China Second Hospital of Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Yuanyuan Xiao
- Department of Obstetrics and Gynecology, West China Second Hospital of Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
| | - Shanling Liu
- Department of Obstetrics and Gynecology, West China Second Hospital of Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China
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Chen H, Yang P, Yang D, Wang D, Lu M, Li Y, Zhong Z, Zhang J, Zeng Z, Liu Z, Zeng X, Jia X, Xing Q, Zhou D. The PER3 rs772027021 SNP induces pigmentation phenotypes of dyschromatosis universalis hereditaria. J Mol Med (Berl) 2023; 101:279-294. [PMID: 36790533 DOI: 10.1007/s00109-023-02288-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 01/02/2023] [Accepted: 01/17/2023] [Indexed: 02/16/2023]
Abstract
Dyschromatosis universalis hereditaria (DUH) is a pigmentary genodermatosis characterized by a mixture of hyperpigmented and hypopigmented macules distributed randomly over the body. Although Sterile Alpha motif- and SH3 domain-containing protein 1 (SASH1) and ATP-binding cassette subfamily B, member 6 (ABCB6) have been identified as causative genes for this disorder, some cases involve unknown pathogenic genes. In this study, whole-exome sequencing, data analysis, and Sanger sequencing were utilized for a four-generation extended Chinese family with DUH. A single-nucleotide polymorphism (SNP) (c. 517C > T (p.P173S), rs772027021) variant in exon 5 of Period Circadian Regulator 3 (PER3) (NM_001289861) was detected in each affected individual of the DUH family; the c. 517C > T SNP of PER3 (PER3rs772027021 SNP) and a novel mutation in exon 14 of SASH1 (c. 1574C > G (p.T525R)) were both found in the proband. The affected individuals carrying PER3rs772027021 SNP in this family demonstrated mild-pigmented phenotypes compared to those of the proband carrying PER3rs772027021 SNP and SASH1 T525R mutation. Increased melanin synthesis was induced by PER3rs772027021 SNP in the melanocytes of affected epithelial tissues. Mutated SASH1 or PER3rs772027021 SNP alone or cooperation of mutation of SASH1 and PER3rs772027021 SNP synergistically led to increased melanin synthesis and enhanced proliferation of melanoma cells in vitro. We also phenotypically characterized a commercially available zebrafish mutant line harboring the PER3rs772027021 SNP to induce melanocyte proliferation in vivo. Our results are the first to reveal that this PER3 SNP may be pathogenic for a novel DUH subtype with mild hyperpigmented and/or hypopigmented phenotypes and that mutation of SASH1 and PER3 cooperatively promotes hyperpigmentation phenotypes. KEY MESSAGES: PER3 rs772027021 SNP is identified to be associated with hyperpigmentation and/or hypopigmentation phenotype and the novel pathogenic variant of PER3 rs772027021 SNP probably contributed the pathogenesis of DUH. SASH1T525R mutation is confirmed to associate with DUH. A novel autosomal dominant inheritance DUH subtype with mild pigmentated phenotypes is caused by the PER3rs772027021 SNP.
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Affiliation(s)
- Hongyu Chen
- School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou, 550004, People's Republic of China
- Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, No.9 Beijing Road, Guiyang, Guizhou, 550004, People's Republic of China
| | - Pingping Yang
- School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou, 550004, People's Republic of China
- Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, No.9 Beijing Road, Guiyang, Guizhou, 550004, People's Republic of China
| | - Dan Yang
- Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, No.9 Beijing Road, Guiyang, Guizhou, 550004, People's Republic of China
| | - Dongsheng Wang
- Department of Laboratory Medicine, Sichuan Cancer Hospital and Institute, Chengdu, 610041, People's Republic of China
| | - Mao Lu
- Department of Dermatovenereology, the First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, 610500, People's Republic of China
| | - Yadong Li
- Clinical College, Guizhou Medical University, Guiyang, Guizhou, 550004, People's Republic of China
| | - Zhiqiang Zhong
- School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou, 550004, People's Republic of China
| | - Jing Zhang
- Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, No.9 Beijing Road, Guiyang, Guizhou, 550004, People's Republic of China
| | - Zhen Zeng
- School of Clinical Laboratory Science, Guizhou Medical University, Guiyang, Guizhou, 550004, People's Republic of China
- Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, No.9 Beijing Road, Guiyang, Guizhou, 550004, People's Republic of China
| | - Zhi Liu
- Department of Dermatovenereology, the Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, People's Republic of China
| | - Xiaohua Zeng
- Department of Breast Cancer Center, Chongqing Key Laboratory for Intelligent Oncology in Breast Cancer (iCQBC), Chongqing University Cancer Hospital, Chongqing, People's Republic of China
| | - Xu Jia
- Non-Coding RNA and Drug Discovery Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu, Sichuan, People's Republic of China
| | - Qinghe Xing
- Children's Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, People's Republic of China
| | - Ding'an Zhou
- Clinical Research Center, the Affiliated Hospital of Guizhou Medical University, No.9 Beijing Road, Guiyang, Guizhou, 550004, People's Republic of China.
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Jaufmann J, Franke FC, Sperlich A, Blumendeller C, Kloos I, Schneider B, Sasaki D, Janssen KP, Beer-Hammer S. The emerging and diverse roles of the SLy/SASH1-protein family in health and disease-Overview of three multifunctional proteins. FASEB J 2021; 35:e21470. [PMID: 33710696 DOI: 10.1096/fj.202002495r] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/22/2021] [Accepted: 02/08/2021] [Indexed: 12/12/2022]
Abstract
Intracellular adaptor proteins are indispensable for the transduction of receptor-derived signals, as they recruit and connect essential downstream effectors. The SLy/SASH1-adaptor family comprises three highly homologous proteins, all of them sharing conserved structural motifs. The initial characterization of the first member SLy1/SASH3 (SH3 protein expressed in lymphocytes 1) in 2001 was rapidly followed by identification of SLy2/HACS1 (hematopoietic adaptor containing SH3 and SAM domains 1) and SASH1/SLy3 (SAM and SH3 domain containing 1). Based on their pronounced sequence similarity, they were subsequently classified as one family of intracellular scaffold proteins. Despite their obvious homology, the three SLy/SASH1-members fundamentally differ with regard to their expression and function in intracellular signaling. On the contrary, growing evidence clearly demonstrates an important role of all three proteins in human health and disease. In this review, we systematically summarize what is known about the SLy/SASH1-adaptors in the field of molecular cell biology and immunology. To this end, we recapitulate current research about SLy1/SASH3, SLy2/HACS1, and SASH1/SLy3, with an emphasis on their similarities and differences.
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Affiliation(s)
- Jennifer Jaufmann
- Department of Pharmacology, Experimental Therapy and Toxicology, Institute of Experimental and Clinical Pharmacology and Pharmacogenomik and ICePhA, University of Tuebingen, Tuebingen, Germany
| | - Fabian Christoph Franke
- Department of Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Andreas Sperlich
- Department of Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Carolin Blumendeller
- Department of Pharmacology, Experimental Therapy and Toxicology, Institute of Experimental and Clinical Pharmacology and Pharmacogenomik and ICePhA, University of Tuebingen, Tuebingen, Germany
| | - Isabel Kloos
- Department of Pharmacology, Experimental Therapy and Toxicology, Institute of Experimental and Clinical Pharmacology and Pharmacogenomik and ICePhA, University of Tuebingen, Tuebingen, Germany
| | - Barbara Schneider
- Department of Pharmacology, Experimental Therapy and Toxicology, Institute of Experimental and Clinical Pharmacology and Pharmacogenomik and ICePhA, University of Tuebingen, Tuebingen, Germany
| | - Daisuke Sasaki
- Department of Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany.,Medical SC New Technology Strategy Office, General Research Institute, Nitto Boseki, Co., Ltd, Tokyo, Japan
| | - Klaus-Peter Janssen
- Department of Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Sandra Beer-Hammer
- Department of Pharmacology, Experimental Therapy and Toxicology, Institute of Experimental and Clinical Pharmacology and Pharmacogenomik and ICePhA, University of Tuebingen, Tuebingen, Germany
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7
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Cao L, Zhang R, Yong L, Chen S, Zhang H, Chen W, Xu Q, Ge H, Mao Y, Zhen Q, Yu Y, Hu X, Sun L. Novel missense mutation of SASH1 in a Chinese family with dyschromatosis universalis hereditaria. BMC Med Genomics 2021; 14:168. [PMID: 34174894 PMCID: PMC8236144 DOI: 10.1186/s12920-021-01014-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 06/11/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Dyschromatosis universalis hereditaria (DUH) is a pigmentary dermatosis characterized by generalized mottled macules with hypopigmention and hyperpigmention. ABCB6 and SASH1 are recently reported pathogenic genes related to DUH, and the aim of this study was to identify the causative mutations in a Chinese family with DUH. METHODS Sanger sequencing was performed to investigate the clinical manifestation and molecular genetic basis of these familial cases of DUH, bioinformatics tools and multiple sequence alignment were used to analyse the pathogenicity of mutations. RESULTS A novel missense mutation, c.1529G>A, in the SASH1 gene was identified, and this mutation was not found in the National Center for Biotechnology Information Database of Short Genetic Variation, Online Mendelian Inheritance in Man, ClinVar, or 1000 Genomes Project databases. All in silico predictors suggested that the observed substitution mutation was deleterious. Furthermore, multiple sequence alignment of SASH1 revealed that the p.S510N mutation was highly conserved during evolution. In addition, we reviewed the previously reported DUH-related gene mutations in SASH1 and ABCB6. CONCLUSION Although the affected family members had identical mutations, differences in the clinical manifestations of these family members were observed, which reveals the complexity of the phenotype-influencing factors in DUH. Our findings reveal the mutation responsible for DUH in this family and broaden the mutational spectrum of the SASH1 gene.
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Affiliation(s)
- Lu Cao
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Dermatology, Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
- Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Ruixue Zhang
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Dermatology, Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
- Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Liang Yong
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Dermatology, Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
- Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Shirui Chen
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Dermatology, Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
- Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Hui Zhang
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Dermatology, Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
- Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Weiwei Chen
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Dermatology, Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
- Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Qiongqiong Xu
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Dermatology, Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
- Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Huiyao Ge
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Dermatology, Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
- Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Yiwen Mao
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Dermatology, Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
- Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Qi Zhen
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Dermatology, Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
- Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Yafen Yu
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Dermatology, Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
- Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Xia Hu
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Dermatology, Anhui Medical University, Hefei, China
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China
- Anhui Provincial Institute of Translational Medicine, Hefei, China
| | - Liangdan Sun
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.
- Institute of Dermatology, Anhui Medical University, Hefei, China.
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China.
- Anhui Provincial Institute of Translational Medicine, Hefei, China.
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8
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Liu JW, Habulieti X, Wang RR, Ma DL, Zhang X. Two novel SASH1 mutations in Chinese families with dyschromatosis universalis hereditaria. J Clin Lab Anal 2021; 35:e23803. [PMID: 34028087 PMCID: PMC8183922 DOI: 10.1002/jcla.23803] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 03/14/2021] [Accepted: 04/04/2021] [Indexed: 11/12/2022] Open
Abstract
Background Dyschromatosis universalis hereditaria (DUH) is a rare genodermatosis characterized by hyper‐ and hypo‐pigmented macules on the face, trunk, and extremities. The condition causes severe cosmetic problem which can lead to significant psychological distress to the patients and bear a negative impact on society. DUH is a condition with genetic heterogeneity. The SASH1 gene was recently identified as pathogenic genes in DUH patients. Methods Two families clinically diagnosed with dyschromatosis universalis hereditaria were enrolled. Whole‐exome sequencing combined with Sanger sequencing and bioinformatics analysis was performed in the probands. MutationTaster, CADD, SIFT, PolyPhen‐2, and LRT software, and The American College of Medical Genetics and Genomics Standards and Guidelines were employed to assess the pathogenicity of detected missense mutations. One hundred healthy unrelated Chinese individuals were used as controls. All participants signed an informed consent form. Results Genetic screening revealed a heterozygous SASH1 c.1547G>A (p.Ser516Asn) mutation for patients in family 1, and SASH1 c.1547G>T (p.Ser516Ile) for family 2. Both such de novo mutations are located in a highly conserved SLY domain in SASH1, have not been previously reported in any publication, and were not detected in any control databases. Conclusions The novel heterozygous mutations, SASH1 c.1547G>A and c.1547G>T, are likely responsible for the DUH phenotype in these two families. Our study expands the mutation spectrum of DUH. Whole‐exome sequencing showed its efficiency in the diagnostic of hereditary skin disorders.
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Affiliation(s)
- Jia-Wei Liu
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - Xiaerbati Habulieti
- Mckusick-Zhang Center for Genetic Medicine, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Rong-Rong Wang
- Mckusick-Zhang Center for Genetic Medicine, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dong-Lai Ma
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Skin and Immune Diseases, Beijing, China
| | - Xue Zhang
- Mckusick-Zhang Center for Genetic Medicine, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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9
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Burgess JT, Bolderson E, Adams MN, Duijf PHG, Zhang SD, Gray SG, Wright G, Richard DJ, O'Byrne KJ. SASH1 is a prognostic indicator and potential therapeutic target in non-small cell lung cancer. Sci Rep 2020; 10:18605. [PMID: 33122723 PMCID: PMC7596716 DOI: 10.1038/s41598-020-75625-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 10/16/2020] [Indexed: 12/17/2022] Open
Abstract
SASH1 (SAM and SH3 domain-containing protein 1) is a tumor suppressor protein that has roles in key cellular processes including apoptosis and cellular proliferation. As these cellular processes are frequently disrupted in human tumours and little is known about the role of SASH1 in the pathogenesis of the disease, we analysed the prognostic value of SASH1 in non-small cell lung cancers using publicly available datasets. Here, we show that low SASH1 mRNA expression is associated with poor survival in adenocarcinoma. Supporting this, modulation of SASH1 levels in a panel of lung cancer cell lines mediated changes in cellular proliferation and sensitivity to cisplatin. The treatment of lung cancer cells with chloropyramine, a compound that increases SASH1 protein concentrations, reduced cellular proliferation and increased sensitivity to cisplatin in a SASH1-dependent manner. In summary, compounds that increase SASH1 protein levels could represent a novel approach to treat NSCLC and warrant further study.
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Affiliation(s)
- Joshua T Burgess
- Cancer and Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Queensland University of Technology, 37 Kent Street Woolloongabba, Brisbane, 4102, Australia.
| | - Emma Bolderson
- Cancer and Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Queensland University of Technology, 37 Kent Street Woolloongabba, Brisbane, 4102, Australia.
- Princess Alexandra Hospital, Ipswich Road, Woolloongabba, Brisbane, QLD, 4102, Australia.
| | - Mark N Adams
- Cancer and Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Queensland University of Technology, 37 Kent Street Woolloongabba, Brisbane, 4102, Australia
| | - Pascal H G Duijf
- Cancer and Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Queensland University of Technology, 37 Kent Street Woolloongabba, Brisbane, 4102, Australia
- University of Queensland Diamantina Institute, The University of Queensland, Translational Research Institute (TRI), Brisbane, Australia
| | - Shu-Dong Zhang
- Northern Ireland Centre for Stratified Medicine, University of Ulster, C-TRIC Building, Altnagelvin Hospital Campus, Glenshane Road, Londonderry, BT47 6SB, UK
- Center for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, UK
| | - Steven G Gray
- Thoracic Oncology Research Group, Institute of Molecular Medicine, Trinity College Dublin, Dublin, Ireland
- HOPE Directorate, St. James Hospital, Dublin 8, Ireland
| | - Gavin Wright
- Department of Surgery, St Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia
| | - Derek J Richard
- Cancer and Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Queensland University of Technology, 37 Kent Street Woolloongabba, Brisbane, 4102, Australia
| | - Kenneth J O'Byrne
- Cancer and Ageing Research Program, Centre for Genomics and Personalised Health at the Translational Research Institute (TRI), Queensland University of Technology, 37 Kent Street Woolloongabba, Brisbane, 4102, Australia.
- Princess Alexandra Hospital, Ipswich Road, Woolloongabba, Brisbane, QLD, 4102, Australia.
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10
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Wu N, Tang L, Li X, Dai Y, Zheng X, Gao M, Wang P. Identification of a Novel Mutation in SASH1 Gene in a Chinese Family With Dyschromatosis Universalis Hereditaria and Genotype-Phenotype Correlation Analysis. Front Genet 2020; 11:841. [PMID: 32849825 PMCID: PMC7417341 DOI: 10.3389/fgene.2020.00841] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/13/2020] [Indexed: 01/08/2023] Open
Abstract
Dyschromatosis universalis hereditaria (DUH) is a rare genodermatosis characterized by mottled hyperpigmented and hypopigmented macules. SASH1 and ABCB6 have been identified as the causative genes for this disorder. We performed whole exome sequencing on a Chinese family with DUH and genotype-phenotype correlation analysis in DUH and lentiginous phenotype patients. A novel heterozygous missense mutation p.Q518P in SASH1 gene was detected in this family. A majority of patients with SASH1 mutations presented as a distinct clinical phenotype clearly different from that in patients with ABCB6 mutations. Our findings further enrich the reservoir of SASH1 mutations in DUH. The clinical phenotypic difference between SASH1 and ABCB6 variants is suggestive of a close phenotype-genotype link in DUH.
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Affiliation(s)
- Nan Wu
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Provincial Laboratory of Inflammatory and Immune Mediated Diseases, Hefei, China
| | - Lili Tang
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Provincial Laboratory of Inflammatory and Immune Mediated Diseases, Hefei, China
| | - Xiuxiu Li
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Provincial Laboratory of Inflammatory and Immune Mediated Diseases, Hefei, China
| | - Yuwei Dai
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Provincial Laboratory of Inflammatory and Immune Mediated Diseases, Hefei, China
| | - Xiaodong Zheng
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Provincial Laboratory of Inflammatory and Immune Mediated Diseases, Hefei, China
| | - Min Gao
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Provincial Laboratory of Inflammatory and Immune Mediated Diseases, Hefei, China
| | - Peiguang Wang
- Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei, China.,Institute of Dermatology, Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, China.,Provincial Laboratory of Inflammatory and Immune Mediated Diseases, Hefei, China
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11
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Xu Z, Li Y, Wang D, Wu D, Wang J, Chen L, Deng Y, Zhang J, Wu Z, Wan X, Liu Q, Huang H, Hu P, Zeng J, Zhou D. Mutated SASH1 promotes Mitf expression in a heterozygous mutated SASH1 knock‑in mouse model. Int J Mol Med 2020; 46:1118-1134. [PMID: 32582980 PMCID: PMC7387086 DOI: 10.3892/ijmm.2020.4652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 06/03/2020] [Indexed: 01/12/2023] Open
Abstract
The SAM and SH3 domain‑containing 1 (SASH1) genes have been identified as the causal genes of dyschromatosis universalis hereditaria (DUH); these genes cause the pathological phenotypes of DUH, and SASH1 variants have been shown to regulate the abnormal pigmentation phenotype in human skin in various genodermatoses. However, investigations into the mutated SASH1 gene have been limited to in vitro studies. In the present study, to recapitulate the molecular pathological phenotypes of individuals with DUH induced by SASH1 mutations, a heterozygous BALB/c mouse model, in which the human SASH1 c.1654 T>G (p. Tyr 551Asp, Y551D) mutation was knocked in was first generated. The in vivo functional experiments on Y551D SASH1 indicated that the increased expression of microphthalmia‑associated transcription factor (Mitf) was uniformly induced in the tails of heterozygous BALB/c mice, and an increased quantity of Mitf‑positive epithelial cells was also detected. An increased expression of Mitf‑ and Mitf‑positive cells was also demonstrated in the epithelial tissues of Y551D‑SASH1 affected individuals. In the present study, Mitf expression was also found to be increased by Y551D SASH1 in vitro. Taken together, these findings indicate that the upregulation of Mitf is the bona fide effector of the Y551D SASH1‑mediated melanogenesis signaling pathway in vivo. SASH1 may function as a scaffold molecule for the assembly of a SASH1‑Mitf molecular complex to regulate Mitf expression in the cell nucleus and thus to promote the hyperpigmented phenotype in the pathogenesis of DUH and other genodermatoses related to pigment abnormalities.
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Affiliation(s)
- Zexi Xu
- Clinical Research Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Yadong Li
- Clinical College, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Dahong Wang
- Clinical Research Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Daoqiu Wu
- School of Clinical Laboratory Sciences, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Jinyun Wang
- School of Biology and Engineering, Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China
| | - Lian Chen
- Clinical College, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Yinqian Deng
- Clinical College, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Jing Zhang
- Clinical Research Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Zhixiong Wu
- Clinical College, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Xin Wan
- Clinical College, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Qianfan Liu
- Clinical College, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Hai Huang
- School of Clinical Laboratory Sciences, Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Pingsheng Hu
- Clinical Research Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Jiawei Zeng
- Department of Clinical Laboratory, Mianyang Central Hospital, Mianyang, Sichuan 621000, P.R. China
| | - Ding'an Zhou
- Clinical Research Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
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12
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Jia Q, Hu S, Jiao D, Li X, Qi S, Fan R. Synaptotagmin-4 promotes dendrite extension and melanogenesis in alpaca melanocytes by regulating Ca 2+ influx via TRPM1 channels. Cell Biochem Funct 2020; 38:275-282. [PMID: 31743468 PMCID: PMC7318172 DOI: 10.1002/cbf.3465] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 10/10/2019] [Accepted: 10/30/2019] [Indexed: 02/03/2023]
Abstract
Synaptotagmin-4 (SYT4) is a membrane protein that regulates membrane traffic in neurons in a calcium-dependent or calcium-independent manner. In melanocytes, the intracellular free calcium ion (Ca2+ ) may be important for dendrite growth and melanogenesis. Mammalian melanocytes originating from neural crest cells produce melanins. Therefore, we predicted that SYT4 might play a role in melanogenesis and the dendrite morphology of melanocytes. To investigate whether SYT4 is involved in melanocyte physiology, SYT4 was overexpressed in alpaca melanocytes and B16-F10 cells. The results showed that SYT4 overexpression resulted in a phenotype consistent with melanogenesis and dendrite extension. At the molecular level, SYT4 interacted with extracellular regulated MAP kinase (ERK) to decrease p-ERK activity, which negatively regulated CREB expression. Furthermore, cyclic AMP-responsive element-binding protein (CREB) was upregulated and caused the downregulation of the expression of melanogenic regulatory proteins, including microphthalmia-associated transcription factor (MITF), tyrosinase (TYR), tyrosinase-related protein-1 (TYRP1), dopachrome tautomerase (DCT), and transient receptor potential melastatin 1 (TRPM1). Intracellular free Ca2+ promoted the upregulation of calcium/calmodulin dependent protein kinase IV (CAMK4) expression, which phosphorylated CREB (p-CREB). In turn, p-CREB participated in the transcription of MITF. These results demonstrated that SYT4 promoted melanogenesis through dendrite extension and tyrosinase activity, during which the regulation of Ca2+ influx via the TRPM1 channel was a key factor. SIGNIFICANCE OF THE STUDY: Intracellular Ca2+ is important for the function and survival of melanocytes and melanoma cells. SYT4 stimulated melanogenesis through calcium. These results provide evidence that SYT4 regulates Ca2+ influx through TRPM1 to cause melanogenesis and axonal elongation in alpaca melanocytes and further suggesting that the growth and metastasis of melanoma is controlled by the inhibited expression of SYT4 in melanoma cells.
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Affiliation(s)
- Qiong Jia
- College of Animal Science and Veterinary MedicineShanxi Agricultural UniversityTaiguChina
| | - Shixiong Hu
- College of Animal Science and Veterinary MedicineShanxi Agricultural UniversityTaiguChina
| | - Dingxing Jiao
- College of Animal Science and Veterinary MedicineShanxi Agricultural UniversityTaiguChina
| | - Xiuqing Li
- College of Animal Science and Veterinary MedicineShanxi Agricultural UniversityTaiguChina
| | - Shuhui Qi
- College of Animal Science and Veterinary MedicineShanxi Agricultural UniversityTaiguChina
| | - Ruiwen Fan
- College of Animal Science and Veterinary MedicineShanxi Agricultural UniversityTaiguChina
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13
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Wei X, Zhang Y, Li C, Ai K, Li K, Li H, Yang J. The evolutionarily conserved MAPK/Erk signaling promotes ancestral T-cell immunity in fish via c-Myc-mediated glycolysis. J Biol Chem 2020; 295:3000-3016. [PMID: 31996375 DOI: 10.1074/jbc.ra119.012231] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 01/23/2020] [Indexed: 01/02/2023] Open
Abstract
The mitogen-activated protein kinase (MAPK) cascade is an ancient and evolutionarily conserved signaling pathway involved in numerous physiological processes. Despite great advances in understanding MAPK-mediated regulation of adaptive immune responses in mammals, its contribution to T-cell immunity in early vertebrates remains unclear. Herein, we used Nile tilapia (Oreochromis niloticus) to investigate the regulatory roles of MAPK/extracellular signal-regulated kinase (Erk) signaling in ancestral T-cell immunity of jawed fish. We found that Nile tilapia possesses an evolutionarily conserved MAPK/Erk axis that is activated through a classical three-tier kinase cascade, involving sequential phosphorylation of RAF proto-oncogene serine/threonine-protein kinase (Raf), MAPK/Erk kinase 1/2 (Mek1/2), and Erk1/2. In Nile tilapia, MAPK/Erk signaling participates in adaptive immune responses during bacterial infection. Upon T-cell activation, the MAPK/Erk axis is robustly activated, and MAPK/Erk blockade by specific inhibitors severely impairs T-cell activation. Furthermore, signals from MAPK/Erk were indispensable for primordial T cells to proliferate and exert their effector functions. Mechanistically, activation of the MAPK/Erk axis promoted glycolysis via induction of the transcriptional regulator proto-oncogene c-Myc (c-Myc), to ensure the proper activation and proliferation of fish T cells. Our results reveal the regulatory mechanisms of MAPK/Erk signaling in T-cell immunity in fish and highlight a close link between immune signals and metabolic programs. We propose that regulation of T-cell immunity by MAPK/Erk is a basic and sophisticated strategy that evolved before the emergence of the tetrapod lineage. These findings shed light on the evolution of the adaptive immune system.
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Affiliation(s)
- Xiumei Wei
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Yu Zhang
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Cheng Li
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Kete Ai
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Kang Li
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Huiying Li
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Jialong Yang
- State Key Laboratory of Estuarine and Coastal Research, School of Life Sciences, East China Normal University, Shanghai 200241, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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14
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Zhou D, Zeng J, Zeng X, Li Y, Wu Z, Wan X, Hu P, Su X. A Novel P53/POMC/Gas/SASH1 Autoregulatory Feedback Loop and Pathologic Hyperpigmentation. Mol Med 2019. [DOI: 10.5772/intechopen.81567] [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] Open
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15
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Guerra L, Castori M, Didona B, Castiglia D, Zambruno G. Hereditary palmoplantar keratodermas. Part I. Non-syndromic palmoplantar keratodermas: classification, clinical and genetic features. J Eur Acad Dermatol Venereol 2018; 32:704-719. [PMID: 29489036 DOI: 10.1111/jdv.14902] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 02/09/2018] [Indexed: 12/15/2022]
Abstract
The term palmoplantar keratoderma (PPK) indicates any form of persistent thickening of the epidermis of palms and soles and includes genetic as well as acquired conditions. We review the nosology of hereditary PPKs that comprise an increasing number of entities with different prognoses, and a multitude of associated cutaneous and extracutaneous features. On the basis of the phenotypic consequences of the underlying genetic defect, hereditary PPKs may be divided into the following: (i) non-syndromic, isolated PPKs, which are characterized by a unique or predominant palmoplantar involvement; (ii) non-syndromic PPKs with additional distinctive cutaneous and adnexal manifestations, here named complex PPKs; (iii) syndromic PPKs, in which PPK is associated with specific extracutaneous manifestations. To date, the diagnosis of the different hereditary PPKs is based mainly on clinical history and features combined with histopathological findings. In recent years, the exponentially increasing use of next-generation sequencing technologies has led to the identification of several novel disease genes, and thus substantially contributed to elucidate the molecular basis of such a heterogeneous group of disorders. Here, we focus on hereditary non-syndromic isolated and complex PPKs. Syndromic PPKs are reviewed in the second part of this 2-part article, where other well-defined genetic diseases, which may present PPK among their phenotypic manifestations, are also listed and diagnostic and therapeutic approaches for PPKs are summarized.
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Affiliation(s)
- L Guerra
- Laboratory of Molecular and Cell Biology, Istituto Dermopatico dell'Immacolata-IRCCS, Rome, Italy
| | - M Castori
- Division of Medical Genetics, Casa Sollievo della Sofferenza-IRCCS, San Giovanni Rotondo, Foggia, Italy
| | - B Didona
- Rare Skin Disease Center, Istituto Dermopatico dell'Immacolata-IRCCS, Rome, Italy
| | - D Castiglia
- Laboratory of Molecular and Cell Biology, Istituto Dermopatico dell'Immacolata-IRCCS, Rome, Italy
| | - G Zambruno
- Genetic and Rare Diseases Research Area and Dermatology Unit, Bambino Gesù Children's Hospital-IRCCS, Rome, Italy
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