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Arrabal L, Muñoz-Pujol G, Medina Martínez I, Gort L, García-Villoria J, Roldán S, Tort F, Ribes A. Functional Evidence of CCDC186 as a New Disease-Associated Gene with Endocrine and Central Nervous System Alterations. Int J Mol Sci 2023; 24:12319. [PMID: 37569695 PMCID: PMC10419233 DOI: 10.3390/ijms241512319] [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: 07/05/2023] [Revised: 07/29/2023] [Accepted: 07/30/2023] [Indexed: 08/13/2023] Open
Abstract
CCDC186 protein is involved in the maturation of dense-core vesicles (DCVs) in the trans-Golgi network in neurons and endocrine cells. Mutations in genes involved in DCV regulation, other than CCDC186, have been described in patients with neurodevelopmental disorders. To date, only one patient, within a large sequencing study of 1000 cases, and a single case report with variants in CCDC186, had previously been described. However, no functional studies in any of these two cases had been performed. We identified three patients from two gypsy families, unrelated to each other, with mutations in the CCDC186 gene. Clinically, all patients presented with seizures, frontotemporal atrophy, hypomyelination, recurrent infections, and endocrine disturbances such as severe non-ketotic hypoglycemia. Low levels of cortisol, insulin, or growth hormone could only be verified in one patient. All of them had a neonatal onset and died between 7 months and 4 years of age. Whole exome sequencing identified a homozygous variant in the CCDC186 gene (c.2215C>T, p.Arg739Ter) in the index patients of both families. Protein expression studies demonstrated that CCDC186 was almost undetectable in fibroblasts and muscle tissue. These observations correlated with the transcriptomic analysis performed in fibroblasts in one of the patients, which showed a significant reduction of CCDC186 mRNA levels. Our study provides functional evidence that mutations in this gene have a pathogenic effect on the protein and reinforces CCDC186 as a new disease-associated gene. In addition, mutations in CCDC186 could explain the combined endocrine and neurologic alterations detected in our patients.
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Affiliation(s)
- Luisa Arrabal
- Pediatric Neurology Department, Hospital Virgen de las Nieves, 18014 Granada, Spain; (L.A.); (I.M.M.); (S.R.)
| | - Gerard Muñoz-Pujol
- Section of Inborn Errors of Metabolism-IBC, Department of Biochemistry and Molecular Genetics, Hospital Clínic Barcelona, IDIBAPS, CIBERER, 08028 Barcelona, Spain; (G.M.-P.); (L.G.); (J.G.-V.)
| | - Inmaculada Medina Martínez
- Pediatric Neurology Department, Hospital Virgen de las Nieves, 18014 Granada, Spain; (L.A.); (I.M.M.); (S.R.)
| | - Laura Gort
- Section of Inborn Errors of Metabolism-IBC, Department of Biochemistry and Molecular Genetics, Hospital Clínic Barcelona, IDIBAPS, CIBERER, 08028 Barcelona, Spain; (G.M.-P.); (L.G.); (J.G.-V.)
| | - Judit García-Villoria
- Section of Inborn Errors of Metabolism-IBC, Department of Biochemistry and Molecular Genetics, Hospital Clínic Barcelona, IDIBAPS, CIBERER, 08028 Barcelona, Spain; (G.M.-P.); (L.G.); (J.G.-V.)
| | - Susana Roldán
- Pediatric Neurology Department, Hospital Virgen de las Nieves, 18014 Granada, Spain; (L.A.); (I.M.M.); (S.R.)
| | - Frederic Tort
- Section of Inborn Errors of Metabolism-IBC, Department of Biochemistry and Molecular Genetics, Hospital Clínic Barcelona, IDIBAPS, CIBERER, 08028 Barcelona, Spain; (G.M.-P.); (L.G.); (J.G.-V.)
| | - Antonia Ribes
- Section of Inborn Errors of Metabolism-IBC, Department of Biochemistry and Molecular Genetics, Hospital Clínic Barcelona, IDIBAPS, CIBERER, 08028 Barcelona, Spain; (G.M.-P.); (L.G.); (J.G.-V.)
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Liu Z, Yan W, Liu S, Liu Z, Xu P, Fang W. Regulatory network and targeted interventions for CCDC family in tumor pathogenesis. Cancer Lett 2023; 565:216225. [PMID: 37182638 DOI: 10.1016/j.canlet.2023.216225] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/03/2023] [Accepted: 05/10/2023] [Indexed: 05/16/2023]
Abstract
CCDC (coiled-coil domain-containing) is a coiled helix domain that exists in natural proteins. There are about 180 CCDC family genes, encoding proteins that are involved in intercellular transmembrane signal transduction and genetic signal transcription, among other functions. Alterations in expression, mutation, and DNA promoter methylation of CCDC family genes have been shown to be associated with the pathogenesis of many diseases, including primary ciliary dyskinesia, infertility, and tumors. In recent studies, CCDC family genes have been found to be involved in regulation of growth, invasion, metastasis, chemosensitivity, and other biological behaviors of malignant tumor cells in various cancer types, including nasopharyngeal carcinoma, lung cancer, colorectal cancer, and thyroid cancer. In this review, we summarize the involvement of CCDC family genes in tumor pathogenesis and the relevant upstream and downstream molecular mechanisms. In addition, we summarize the potential of CCDC family genes as tumor therapy targets. The findings discussed here help us to further understand the role and the therapeutic applications of CCDC family genes in tumors.
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Affiliation(s)
- Zhen Liu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315, Guangzhou, China.
| | - Weiwei Yan
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315, Guangzhou, China
| | - Shaohua Liu
- Department of General Surgery, Pingxiang People's Hospital, Pingxiang, Jiangxi, 337000, China
| | - Zhan Liu
- Department of Gastroenterology and Clinical Nutrition, The First Affiliated Hospital (People's Hospital of Hunan Province), Hunan Normal University, Changsha, 410002, China
| | - Ping Xu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315, Guangzhou, China; Respiratory Department, Peking University Shenzhen Hospital, Shenzhen, 518034, China.
| | - Weiyi Fang
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315, Guangzhou, China.
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Priyanka PP, Yenugu S. Coiled-Coil Domain-Containing (CCDC) Proteins: Functional Roles in General and Male Reproductive Physiology. Reprod Sci 2021; 28:2725-2734. [PMID: 33942254 DOI: 10.1007/s43032-021-00595-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 04/22/2021] [Indexed: 01/10/2023]
Abstract
The coiled-coil domain-containing (CCDC) proteins have been implicated in a variety of physiological and pathological processes. Their functional roles vary from their interaction with molecular components of signaling pathways to determining the physiological functions at the cellular and organ level. Thus, they govern important functions like gametogenesis, embryonic development, hematopoiesis, angiogenesis, and ciliary development. Further, they are implicated in the pathogenesis of a large number of cancers. Polymorphisms in CCDC genes are associated with the risk of lifetime diseases. Because of their role in many biological processes, they have been extensively studied. This review concisely presents the functional role of CCDC proteins that have been studied in the last decade. Studies on CCDC proteins continue to be an active area of investigation because of their indispensable functions. However, there is ample opportunity to further understand the involvement of CCDC proteins in many more functions. It is anticipated that basing on the available literature, the functional role of CCDC proteins will be explored much further.
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Affiliation(s)
| | - Suresh Yenugu
- Department of Animal Biology, University of Hyderabad, Hyderabad, 500046, India.
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