Intercalated disc protein Xinβ is required for Hippo-YAP signaling in the heart

Basic data
OCA1. Surname awarded to the assessed personKyselovič
OCA2. Name awarded to the assessed personJán
OCA3. Degrees awarded to the assessed personProf. , Pharm.D., CSc.
OCA4. Hyperlink to the entry of the person in the Register of university staffhttps://www.portalvs.sk/regzam/detail/3738
OCA5. Area of assessmentstudy programme pharmacy (joint study programme) · I. + II. degree
OCA6. Category of the research/artistic/other output
OCA7. Year of publication of the research/artistic/other output2020
OCA8. ID of the record in the Central Registry of Publication Activity (CRPA) or the Central Registry of Artistic Activity (CRAA)216126
OCA9. Hyperlink to the record in CRPA or CRAAhttps://app.crepc.sk/?fn=detailBiblioForm&sid=E4662E652762CF0C11672E6DEF
Characteristics of the output that is not registered in CRPA or CRAA
OCA10. Hyperlink to the record in another publicly accessible register, catalogue of research/ artistic/other outputs
OCA11. Characteristics of the output in the format of the CRPA or the CRAA bibliographic record, if the output is not available in a publicly accessible register or catalogue of outputsIntercalated disc protein Xinβ is required for Hippo-YAP signaling in the heart
OCA12. Type of the output (if the output is not registered in CRPA or CRAA) article
OCA13. Hyperlink to the webpage where the output is available (full text, other documentation, etc.)
OCA14. Characteristics of the author's contributionmember of the international scientific team
OCA15. Annotation of the output with contextual information concerning the description of creative process and the content of the research/artistic/other activity, etc.Intercalated discs (ICD), specific cell-to-cell contacts that connect adjacent cardiomyocytes, ensure mechanical and electrochemical coupling during contraction of the heart. Mutations in genes encoding ICD components are linked to cardiovascular diseases. Here, we show that loss of Xinβ, a newly-identified component of ICDs, results in cardiomyocyte proliferation defects and cardiomyopathy. We uncovered a role for Xinβ in signaling via the Hippo-YAP pathway by recruiting NF2 to the ICD to modulate cardiac function. In Xinβ mutant hearts levels of phosphorylated NF2 are substantially reduced, suggesting an impairment of Hippo-YAP signaling. Cardiac-specific overexpression of YAP rescues cardiac defects in Xinβ knock-out mice—indicating a functional and genetic interaction between Xinβ and YAP. Our study reveals a molecular mechanism by which cardiac-expressed intercalated disc protein Xinβ modulates Hippo-YAP signaling to control heart development and cardiac function in a tissue specific manner. Consequently, this pathway may represent a therapeutic target for the treatment of cardiovascular diseases.
Other data
OCA16. Annotation of the output in EnglishIntercalated discs (ICD), specific cell-to-cell contacts that connect adjacent cardiomyocytes, ensure mechanical and electrochemical coupling during contraction of the heart. Mutations in genes encoding ICD components are linked to cardiovascular diseases. Here, we show that loss of Xinβ, a newly-identified component of ICDs, results in cardiomyocyte proliferation defects and cardiomyopathy. We uncovered a role for Xinβ in signaling via the Hippo-YAP pathway by recruiting NF2 to the ICD to modulate cardiac function. In Xinβ mutant hearts levels of phosphorylated NF2 are substantially reduced, suggesting an impairment of Hippo-YAP signaling. Cardiac-specific overexpression of YAP rescues cardiac defects in Xinβ knock-out mice—indicating a functional and genetic interaction between Xinβ and YAP. Our study reveals a molecular mechanism by which cardiac-expressed intercalated disc protein Xinβ modulates Hippo-YAP signaling to control heart development and cardiac function in a tissue specific manner. Consequently, this pathway may represent a therapeutic target for the treatment of cardiovascular diseases.
OCA17. List of maximum 5 most significant citations corresponding to the output2023: van Kampen, S.J. - Han, S.J. - van Ham, W.B. - Kyriakopoulou, E. - Stouthart, E.W. - Goversen, B. - Monshouwer-Kloots, J. - Perini, I. - de Ruiter, H. - van der Kraak, P. - Vink, A. - van Laake, L.W. - Groeneweg, J.A. - de Boer,T.P. - Tsui, H. - Boogerd, C.J. - van Veen, T.A.B. - van Rooij, E.: PITX2 induction leads to impaired cardiomyocyte function in arrhythmogenic cardiomyopathy. In: Stem Cell Reports, vol. 18, no. 3, 2023, s. 749-764 -- SCI ; SCOPUS 2023: Amoni, M. - Vermoortele, D. - Ekhteraei- Tousi, S. - Donate Puertas, R. - Gilbert, G. - Youness, M. - Thienpont, B. - Willems, R. - Roderick, H.L. - Claus, P. - Sipido, K.R.: Heterogeneity of Repolarization and Cell- CellVariability of Cardiomyocyte Remodeling Within the Myocardial Infarction Border Zone Contribute to Arrhythmia Susceptibility. In: Circulation: Arrhythmia and Electrophysiology, vol. 16, no. 5, 2023, art. no. e011677 -- SCI ; SCOPUS 2023: Pang, P. - Si, W. - Wu, H. - Wang, C. - Liu, K. - Jia, Y. - Zhang, Z. - Zhang, F. - Kong, X. - Yang, Y. - Jiang, W. - Song, J. - Zeng, L. - Xiong, Y. - Lian, J. - Wang, N. - Bian, Y. - Yang, B.: The circular RNA circHelzenhances cardiac fibrosis by facilitating the nuclear translocation of YAP1. In: Translational Research, vol. 257, 2023, s. 30-42 - - SCI ; SCOPUS 2024: Leng, J. - Wang, C. - Liang, Z. - Qiu, F. - Zhang, S. - Yang, Y.: An updated review of YAP: A promising therapeutic target against cardiac aging?. In: International Journal of Biological Macromolecules, vol. 254, 2024, art. no.127670 -- SCI ; SCOPUS 2023: Luo, A. - Jia, Y. - Hao, R. - Zhou, X. - Bao, C. - Yang, L. - Gu, C. - Tang, H. - Chu, A.A.: Proteomic and Phosphoproteomic Analysis of Right Ventricular Hypertrophy in the Pulmonary Hypertension Rat Model. In: Journal ofProteome Research, vol. 23, no. 1, 2024, s. 264- 276 -- SCI ; SCOPUS
OCA18. Characteristics of the output's impact on socio-economic practicecontribution of new knowledge to the issue
OCA19. Characteristics of the output and related activities' impact on the educational processresearch in the field

Last updated: 28.10.2026

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