{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T19:31:34Z","timestamp":1790105494396,"version":"4.0.1"},"reference-count":45,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"14","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circulation"],"published-print":{"date-parts":[[2018,4,3]]},"abstract":"<jats:sec>\n            <jats:title>Background:<\/jats:title>\n            <jats:p>Cardiac hypertrophy and its resultant heart failure are among the most common causes of mortality worldwide. Abnormal protein degradation, especially the impaired lysosomal degradation of large organelles and membrane proteins, is involved in the progression of cardiac hypertrophy. However, the underlying mechanisms have not been fully elucidated.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods:<\/jats:title>\n            <jats:p>\n              We investigated cardiac transmembrane BAX inhibitor motif containing 1 (TMBIM1) mRNA and protein expression levels in samples from patients with heart failure and mice with aortic banding (AB)\u2013induced cardiac hypertrophy. We generated cardiac-specific\n              <jats:italic>Tmbim1<\/jats:italic>\n              knockout mice and cardiac-specific\n              <jats:italic>Tmbim1<\/jats:italic>\n              -overexpressing transgenic mice and then challenged them with AB surgery. We used microarray, confocal image, and coimmunoprecipitation analyses to identify the downstream targets of TMBIM1 in cardiac hypertrophy.\n              <jats:italic>Tmbim1<\/jats:italic>\n              \/\n              <jats:italic>Tlr4<\/jats:italic>\n              double-knockout mice were generated to investigate whether the effects of TMBIM1 on cardiac hypertrophy were Toll-like receptor 4 (TLR4) dependent. Finally, lentivirus-mediated\n              <jats:italic>TMBIM1<\/jats:italic>\n              overexpression in a monkey AB model was performed to evaluate the therapeutic potential of TMBIM1.\n            <\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results:<\/jats:title>\n            <jats:p>\n              TMBIM1 expression was significantly downregulated on hypertrophic stimuli in both human and mice heart samples. Silencing cardiac\n              <jats:italic>Tmbim1<\/jats:italic>\n              aggravated AB-induced cardiac hypertrophy. This effect was blunted by\n              <jats:italic>Tmbim1<\/jats:italic>\n              overexpression. Transcriptome profiling revealed that the TLR4 signaling pathway was disrupted dramatically by manipulation of\n              <jats:italic>Tmbim1<\/jats:italic>\n              . The effects of TMBIM1 on cardiac hypertrophy were shown to be dependent on TLR4 in double-knockout mice. Fluorescent staining indicated that TMBIM1 promoted the lysosome-mediated degradation of activated TLR4. Coimmunoprecipitation assays confirmed that TMBIM1 directly interacted with tumor susceptibility gene 101 via a PTAP motif and accelerated the formation of multivesicular bodies that delivered TLR4 to the lysosomes. Finally, lentivirus-mediated\n              <jats:italic>TMBIM1<\/jats:italic>\n              overexpression reversed AB-induced cardiac hypertrophy in monkeys.\n            <\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions:<\/jats:title>\n            <jats:p>TMBIM1 protects against pathological cardiac hypertrophy through promoting the lysosomal degradation of activated TLR4. Our findings reveal the central role of TMBIM1 as a multivesicular body regulator in the progression of pathological cardiac hypertrophy, as well as the role of vesicle trafficking in signaling regulation during cardiac hypertrophy. Moreover, targeting TMBIM1 could be a novel therapeutic strategy for treating cardiac hypertrophy and heart failure.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1161\/circulationaha.117.031659","type":"journal-article","created":{"date-parts":[[2017,12,11]],"date-time":"2017-12-11T10:30:12Z","timestamp":1512988212000},"page":"1486-1504","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":45,"title":["Targeting Transmembrane BAX Inhibitor Motif Containing 1 Alleviates Pathological Cardiac Hypertrophy"],"prefix":"10.1161","volume":"137","author":[{"given":"Ke-Qiong","family":"Deng","sequence":"first","affiliation":[{"name":"Department of Cardiology, Renmin Hospital of Wuhan University, China (K.-Q.D., Z.W., P.Z., Z.-G.S., H.L.)"},{"name":"School of Basic Medical Sciences (K.-Q.D., G.-N.Z., Z.W., Z.J., J.G., F.-J.Y., X.-Y.Z., P.Z., Z.-G.S., H.L.)"},{"name":"Medical Research Institute, School of Medicine (K.-Q.D., G.-N.Z., Z.W., Z.J., J.G., F.-J.Y., X.-Y.Z., P.Z., Z.-G.S., H.L.)"},{"name":"Institute of Model Animal (K.-Q.D., G.-N.Z., Z.W., Z.J., J.G., F.-J.Y., X.-Y.Z., P.Z., Z.-G.S., H.L.), Wuhan University, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guang-Nian","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Basic Medical Sciences (K.-Q.D., G.-N.Z., Z.W., Z.J., J.G., F.-J.Y., X.-Y.Z., P.Z., Z.-G.S., H.L.)"},{"name":"Medical Research Institute, School of Medicine (K.-Q.D., G.-N.Z., Z.W., Z.J., J.G., F.-J.Y., X.-Y.Z., P.Z., Z.-G.S., H.L.)"},{"name":"College of Life Sciences (G.-N.Z., Z.J., J.G., F.-J.Y.)"},{"name":"Institute of Model Animal (K.-Q.D., G.-N.Z., Z.W., Z.J., J.G., F.-J.Y., X.-Y.Z., P.Z., Z.-G.S., H.L.), Wuhan University, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhihua","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Renmin Hospital of Wuhan University, China (K.-Q.D., Z.W., P.Z., 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