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Li J, Lu D, Liu H, Williams BO, Overbeek PA, Lee B, Zheng L, Yang T. Sclt1 deficiency causes cystic kidney by activating ERK and STAT3 signaling. Hum Mol Genet 2018; 26:2949-2960. [PMID: 28486600 DOI: 10.1093/hmg/ddx183] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 05/03/2017] [Indexed: 12/31/2022] Open
Abstract
Ciliopathies form a group of inherited disorders sharing several clinical manifestations because of abnormal cilia formation or function, and few treatments have been successful against these disorders. Here, we report a mouse model with mutated Sclt1 gene, which encodes a centriole distal appendage protein important for ciliogenesis. Sodium channel and clathrin linker 1 (SCLT1) mutations were associated with the oral-facial-digital syndrome (OFD), an autosomal recessive ciliopathy. The Sclt1-/- mice exhibit typical ciliopathy phenotypes, including cystic kidney, cleft palate and polydactyly. Sclt1-loss decreases the number of cilia in kidney; increases proliferation and apoptosis of renal tubule epithelial cells; elevates protein kinase A, extracellular signal-regulated kinases, SMAD and signal transducer and activator of transcription 3 (STAT3) pathways; and enhances pro-inflammation and pro-fibrosis pathways with disease progression. Embryonic kidney cyst formation of Sclt1-/- mice was effectively reduced by an anti-STAT3 treatment using pyrimethamine. Overall, we reported a new mouse model for the OFD; and our data suggest that STAT3 inhibition may be a promising treatment for SCLT1-associated cystic kidney.
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Affiliation(s)
- Jianshuang Li
- Hubei Key Laboratory of Cell Homeostasis, Department of Cell Biology, College of Life Sciences, Wuhan University, Wuhan, Hubei 430072, P.R. China.,Program for Skeletal Disease and Tumor Metastasis, Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, MI 49503, USA
| | - Di Lu
- Program for Skeletal Disease and Tumor Metastasis, Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, MI 49503, USA
| | - Huadie Liu
- Program for Skeletal Disease and Tumor Metastasis, Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, MI 49503, USA
| | - Bart O Williams
- Program for Skeletal Disease and Tumor Metastasis, Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, MI 49503, USA
| | | | - Brendan Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ling Zheng
- Hubei Key Laboratory of Cell Homeostasis, Department of Cell Biology, College of Life Sciences, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Tao Yang
- Program for Skeletal Disease and Tumor Metastasis, Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, MI 49503, USA
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Vogel I, Lyngbye T, Nielsen A, Pedersen S, Hertz JM. Pallister-Killian syndrome in a girl with mild developmental delay and mosaicism for hexasomy 12p. Am J Med Genet A 2009; 149A:510-4. [PMID: 19215056 DOI: 10.1002/ajmg.a.32681] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We report on a 5-year-old girl with Pallister-Killian syndrome (OMIM #601803) due to mosaicism of two supernumerary isochromosomes (hexasomy 12p). Hexasomy 12p was found in 20% of the cells by chromosome analysis of cultured skin fibroblasts and confirmed by FISH- and arrayCGH analysis. The girl has woolly and sparse hair, absence of lateral eyebrows, dry skin, brittle nails, hypopigmented patches, frontal bossing, hearing loss, hypertrophic dilated cardiomyopathy, polydactyly, and mild developmental delay. This is the second live case of mosaicism for hexasomy 12p to be reported. A gene-dosage hypothesis has previously suggested that cases with hexasomy 12p would have a worse phenotype than cases with tetrasomy 12p. The relatively mild symptoms found in the current girl with hexasomy 12p may to contradict this hypothesis.
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Affiliation(s)
- Ida Vogel
- Department of Clinical Genetics, Aarhus University Hospital, Aarhus C, Denmark.
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Huang XL, Isabel de Michelena M, Leon E, Maher TA, McClure R, Milunsky A. Pallister-Killian syndrome: tetrasomy of 12pter→12p11.22 in a boy with an analphoid, inverted duplicated marker chromosome. Clin Genet 2007; 72:434-40. [PMID: 17894838 DOI: 10.1111/j.1399-0004.2007.00894.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Supernumerary marker chromosomes (SMCs) without detectable alphoid DNA are predicted to have a neocentromere and have been referred to as mitotically stable neocentromere marker chromosomes (NMCs). Here we report the molecular cytogenetic characterization of a new case of Pallister-Killian syndrome (PKS) in a boy with an analphoid, inverted duplicated NMC derived from 12pter-->12p11.22 in his fibroblasts by using high-resolution comparative genetic hybridization (HR-CGH), multiplex fluorescent in situ hybridization (FISH) and bacterial artificial chromosome (BAC)-FISH mapping analyses with various alpha-satellite DNA probes, subtelomere probes and BAC-DNA probes. Precise identification of SMCs and NMCs is of essential importance in genetic counseling. HR-CGH is a more informative and often a faster way of precisely identifying the origin of SMCs. This case is the third report of PKS with an NMC containing an inverted duplication of partial 12p with available clinical data. These observations may help to determine the critical region for PKS and the mechanisms leading to the origin of the NMC derived from 12pter-->12p11.22 - a region that appears to be susceptible to the formation of neocentromeres. The use of subtelomeric probe PCP12p in buccal cells appears superior to the use of the centromere probe D12Z3 for the diagnosis of the PKS.
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Affiliation(s)
- X-L Huang
- Center for Human Genetics, Boston University School of Medicine, Boston, MA, USA
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Guareschi E, Garavelli L, Pedori S, Di Lernia V, Grenzi L, Franchi F, Marinelli M, Croci GF, Pedretti E, Amarri S, Banchini G, Albertini G. Dermatologic features in Pallister-Killian syndrome and their importance to the diagnosis. Pediatr Dermatol 2007; 24:426-8. [PMID: 17845177 DOI: 10.1111/j.1525-1470.2007.00469.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- E Guareschi
- Department of Dermatology, S. Maria Nuova Hospital, Reggio Emilia, Italy
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