{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T21:55:44Z","timestamp":1790805344417,"version":"4.1.0"},"reference-count":24,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"4","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circulation Research"],"published-print":{"date-parts":[[2013,2,15]]},"abstract":"<jats:sec>\n            <jats:title>\n              <jats:underline>Rationale:<\/jats:underline>\n            <\/jats:title>\n            <jats:p>Oxidation of cysteine residues in class II histone deacetylases (HDACs), including HDAC4, causes nuclear exit, thereby inducing cardiac hypertrophy. The cellular source of reactive oxygen species responsible for oxidation of HDAC4 remains unknown.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>\n              <jats:underline>Objective:<\/jats:underline>\n            <\/jats:title>\n            <jats:p>We investigated whether nicotinamide adenine dinucleotide phosphate oxidase 4 (Nox4), a major nicotinamide adenine dinucleotide phosphate oxidase, mediates cysteine oxidation of HDAC4.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>\n              <jats:underline>Methods and Results:<\/jats:underline>\n            <\/jats:title>\n            <jats:p>\n              Phenylephrine (100 \u03bcmol\/L), an \u03b11 adrenergic agonist, induced upregulation of Nox4 (1.5-fold;\n              <jats:italic>P<\/jats:italic>\n              &lt;0.05) within 5 minutes, accompanied by increases in O\n              <jats:sub>2<\/jats:sub>\n              <jats:sup>\u2212<\/jats:sup>\n              (3.5-fold;\n              <jats:italic>P<\/jats:italic>\n              &lt;0.01) from the nuclear membrane and nuclear exit of HDAC4 in cardiomyocytes. Knockdown of Nox4, but not Nox2, attenuated O\n              <jats:sub>2<\/jats:sub>\n              <jats:sup>\u2212<\/jats:sup>\n              production in the nucleus and prevented phenylephrine-induced oxidation and nuclear exit of HDAC4. After continuous infusion of phenylephrine (20 mg\/kg per day) for 14 days, wild-type and cardiac-specific Nox4 knockout mice exhibited similar aortic pressures. Left ventricular weight\/tibial length (5.7\u00b10.2 versus 6.4\u00b10.2 mg\/mm;\n              <jats:italic>P<\/jats:italic>\n              &lt;0.05) and cardiomyocytes cross-sectional area (223\u00b113 versus 258\u00b112 \u03bcm\n              <jats:sup>2<\/jats:sup>\n              ;\n              <jats:italic>P<\/jats:italic>\n              &lt;0.05) were significantly smaller in cardiac-specific Nox4 knockout than in wild-type mice. Nuclear O\n              <jats:sub>2<\/jats:sub>\n              <jats:sup>\u2212<\/jats:sup>\n              production in the heart was significantly lower in cardiac-specific Nox4 knockout than in wild-type mice (4116\u00b1314 versus 7057\u00b11710 relative light unit;\n              <jats:italic>P<\/jats:italic>\n              &lt;0.05), and cysteine oxidation of HDAC4 was decreased. HDAC4 oxidation and cardiac hypertrophy were also attenuated in cardiac-specific Nox4 knockout mice 2 weeks after transverse aortic constriction.\n            <\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>\n              <jats:underline>Conclusions:<\/jats:underline>\n            <\/jats:title>\n            <jats:p>Nox4 plays an essential role in mediating cysteine oxidation and nuclear exit of HDAC4, thereby mediating cardiac hypertrophy in response to phenylephrine and pressure overload.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1161\/circresaha.112.279760","type":"journal-article","created":{"date-parts":[[2012,12,28]],"date-time":"2012-12-28T03:48:43Z","timestamp":1356666523000},"page":"651-663","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":179,"title":["Increased Oxidative Stress in the Nucleus Caused by Nox4 Mediates Oxidation of HDAC4 and Cardiac Hypertrophy"],"prefix":"10.1161","volume":"112","author":[{"given":"Shouji","family":"Matsushima","sequence":"first","affiliation":[{"name":"From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute (S.M., J.K., T.A., P.Z., L.-H.X., J.S.), and Department of Biochemistry and Molecular Biology (J.Y.P., B.T.), University of Medicine and Dentistry of New Jersey, Newark, NJ."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junya","family":"Kuroda","sequence":"additional","affiliation":[{"name":"From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute (S.M., J.K., T.A., P.Z., L.-H.X., J.S.), and Department of Biochemistry and Molecular Biology (J.Y.P., B.T.), University of Medicine and Dentistry of New Jersey, Newark, NJ."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tetsuro","family":"Ago","sequence":"additional","affiliation":[{"name":"From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute (S.M., J.K., T.A., P.Z., L.-H.X., J.S.), and Department of Biochemistry and Molecular Biology (J.Y.P., B.T.), University of Medicine and Dentistry of New Jersey, Newark, NJ."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peiyong","family":"Zhai","sequence":"additional","affiliation":[{"name":"From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute (S.M., J.K., T.A., P.Z., L.-H.X., J.S.), and Department of Biochemistry and Molecular Biology (J.Y.P., B.T.), University of Medicine and Dentistry of New Jersey, Newark, NJ."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ji Yeon","family":"Park","sequence":"additional","affiliation":[{"name":"From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute (S.M., J.K., T.A., P.Z., L.-H.X., J.S.), and Department of Biochemistry and Molecular Biology (J.Y.P., B.T.), University of Medicine and Dentistry of New Jersey, Newark, NJ."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lai-Hua","family":"Xie","sequence":"additional","affiliation":[{"name":"From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute (S.M., J.K., T.A., P.Z., L.-H.X., J.S.), and Department of Biochemistry and Molecular Biology (J.Y.P., B.T.), University of Medicine and Dentistry of New Jersey, Newark, NJ."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bin","family":"Tian","sequence":"additional","affiliation":[{"name":"From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute (S.M., J.K., T.A., P.Z., L.-H.X., J.S.), and Department of Biochemistry and Molecular Biology (J.Y.P., B.T.), University of Medicine and Dentistry of New Jersey, Newark, NJ."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junichi","family":"Sadoshima","sequence":"additional","affiliation":[{"name":"From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute (S.M., J.K., T.A., P.Z., L.-H.X., J.S.), and Department of Biochemistry and Molecular Biology (J.Y.P., B.T.), University of Medicine and Dentistry of New Jersey, Newark, 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