Deepa Selvi Rani

CSIR-Centre for Cellular and Molecular Biology, India

Title: Novel MYBPC3 Mutations in Indian Inherited Cardiomyopathies

Abstract

Background: Mutations in Myosin Binding Protein C (MYBPC3) are one of the most frequent causes of cardiomyopathies in the world but not much data is available in India.

Methods: We carried out targeted direct sequencing of MYBPC3 in 115 Hypertrophic (HCM), and 127 Dilated (DCM) Cardiomyopathies against 197 ethnically matched healthy controls from India.

Results: We detected 33 single nucleotide variations in MYBPC3, of which 19 were novel. We found a splice site mutation [(IVS6+2T) T>G] and 16 missense mutations in Indian cardiomyopathies; [5 in HCM; E258K, T262S, H287L, R408M, V483A: 4 in DCM; T146N, V321L, A392T, E393K and 7 in both HCM and DCM; L104M, V158M, S236G, R272C, T290A, G522E, A626V], but those were absent in 197 normal healthy controls. Interestingly, we found 7 out of 16 missense mutations (V158M, E258K, R272C, A392T, V483A, G522E, and A626V) in MYBPC3 were altering the evolutionarily conserved native amino acids, accounted for 8.7% and 6.3% in HCM and DCM, respectively. The bioinformatic tools predicted that those 7 missense mutations were pathogenic. Moreover, the co-segregation of those 7 mutations in families further confirmed their pathogenicity. Remarkably, we also identified compound mutations within the MYBPC3 gene of 6 cardiomyopathy patients (5%) with more severe disease phenotype; of which 3 were HCM (2.6%), [(1. K244K + E258K + (IVS6+2T) T>G); (2. L104M + G522E + A626V); (3. P186P + G522E + A626V]; and 3 were DCM (2.4%), [(1. 5'UTR + A392T; 2. V158M+G522E; and 3.V158M + T262T + A626V].

Conclusion: The present comprehensive study on MYBPC3 has revealed both single and compound mutations in MYBPC3 and their association with disease in Indian Population with Cardiomyopathies. Our findings in the future may perhaps help in initiating diagnostic strategies and eventually recognizing the targets for therapeutic interventions.

Biography

Deepa Selvi Rani is from CCMB-CSIR, India. She is interested in understanding the Genetic basis of Cardiovascular Diseases, Male infertility, Mitochondrial disorders, and the Origin of Modern Humans. She has two master's degrees, M.Sc. in Biochemistry and M.Sc. in Biotechnology. She did her Ph.D. on "Molecular Studies in Cardiomyopathies and Noonan Syndrome." Dr. Rani is an enthusiastic, dedicated, outstanding researcher and published 50 papers in peer-reviewed International Journals. She has a 23 h-index with a total of 1802 citations. WIN CARS has recently awarded her "Servier Women Researchers Award" in 2019.

2nd World Congress on Heart and Cardiovascular Diseases

Deepa Selvi Rani

Title: Novel MYBPC3 Mutations in Indian Inherited Cardiomyopathies

Abstract

Biography

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