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Αλέξανδρος Γ. Σφακιανάκης

Wednesday, July 7, 2021

Alport syndrome combined with lupus nephritis in a Chinese family: A case report

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World J Clin Cases. 2021 Jun 26;9(18):4721-4727. doi: 10.12998/wjcc.v9.i18.4721.

ABSTRACT

BACKGROUND: Alport syndrome (ATS) is a rare hereditary disease caused by mutations in genes such as COL4A3, COL4A4, and COL4A5. ATS involves a spectrum of phenotypes ranging from isolated hematuria that is nonprogressive to progressive renal disease with extrarenal abnormalities. Although ATS can be combined with other diseases or syndromes, ATS combined with lupus nephritis has not been reported before.

CASE SUMMARY: A Chinese family with ATS was recruited for the current study. Clinical characteristics (including findings from renal biopsy) of ATS patients were collected from medical records, and potential causative genes were explored by whole-exome sequencing. A heterozygous substitution in intron 22 of COL4A3 (NM_000091 c.2657-1G>A) was found in the patients, which was further confirmed by quantitative polymerase chain reaction.

CONCLUSION: Heterozygous substitution of a COL4A3 gene splice site was identified by whole-exome sequencing, revealing the molecular pathogenic basis of this disorder. In general, identification of pathogenic genes can help to fully understand the molecular mechanism of disease and facilitate precise treatment.

PMID:34222438 | PMC:PMC8223833 | DOI:10.12998/wjcc.v9.i18.4721

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