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Transient receptor potential melastatin 2–mediated heme oxygenase-1 has a role for bacterial clearance by regulating autophagy in peritoneal macrophages during polymicrobial sepsis

Identifieur interne : 000A35 ( Ncbi/Merge ); précédent : 000A34; suivant : 000A36

Transient receptor potential melastatin 2–mediated heme oxygenase-1 has a role for bacterial clearance by regulating autophagy in peritoneal macrophages during polymicrobial sepsis

Auteurs : Xiaowei Qian [République populaire de Chine] ; Hao Cheng [République populaire de Chine] ; Xinzhong Chen [République populaire de Chine]

Source :

RBID : PMC:6900664

Abstract

Our previous study indicated an important protective role of transient receptor potential melastatin 2 (TRPM2) in controlling bacterial clearance in macrophages during polymicrobial sepsis by regulating heme oxygenase-1. Autophagy is necessary for macrophages to kill invasive bacteria. In the present study, TRPM2 knockout (KO) mice show decreased heme oxygenase-1 and autophagy in peritoneal macrophages after caecal ligation and puncture surgery. Caecal ligation and puncture-induced autophagy in peritoneal macrophages is dependent on heme oxygenase-1. TRPM2 KO mice treated with heme oxygenase-1 inducer before caecal ligation and puncture significantly increase autophagy of peritoneal macrophages, bacterial clearance rate and survival rate. In addition, TRPM2 KO mice treated with heme oxygenase-1 inducer before caecal ligation and puncture significantly attenuate organ injury and systemic inflammation. These improvements are reversed by autophagy inhibitor. Therefore, our findings suggest that TRPM2-mediated heme oxygenase-1 has a role for bacterial clearance possibly by regulating autophagy in peritoneal macrophages during polymicrobial sepsis.


Url:
DOI: 10.1177/1753425919875796
PubMed: 31533549
PubMed Central: 6900664

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PMC:6900664

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<contrib-id contrib-id-type="orcid" authenticated="false">https://orcid.org/0000-0001-9553-1098</contrib-id>
<name>
<surname>Qian</surname>
<given-names>XiaoWei</given-names>
</name>
<xref ref-type="aff" rid="aff1-1753425919875796">1</xref>
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<contrib contrib-type="author">
<name>
<surname>Cheng</surname>
<given-names>Hao</given-names>
</name>
<xref ref-type="aff" rid="aff1-1753425919875796">1</xref>
<xref ref-type="aff" rid="aff2-1753425919875796">2</xref>
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<contrib contrib-type="author">
<name>
<surname>Chen</surname>
<given-names>XinZhong</given-names>
</name>
<xref ref-type="aff" rid="aff1-1753425919875796">1</xref>
<xref ref-type="corresp" rid="corresp1-1753425919875796"></xref>
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<aff id="aff1-1753425919875796">
<label>1</label>
Department of Anaesthesia, Women’s Hospital, Zhejiang University School of Medicine, PR China</aff>
<aff id="aff2-1753425919875796">
<label>2</label>
Department of Anaesthesia, Lishui Municipal Central Hospital, PR China</aff>
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<author-notes>
<corresp id="corresp1-1753425919875796">XinZhong Chen, Department of Anaesthesia, Women’s Hospital, Zhejiang University School of Medicine, Xueshi Road 1, Hangzhou 310006, PR China. Email:
<email>chenxinz@zju.edu.cn</email>
</corresp>
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<pub-date pub-type="epub">
<day>19</day>
<month>9</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="ppub">
<month>11</month>
<year>2019</year>
</pub-date>
<volume>25</volume>
<issue>8</issue>
<fpage>530</fpage>
<lpage>538</lpage>
<history>
<date date-type="received">
<day>3</day>
<month>4</month>
<year>2019</year>
</date>
<date date-type="accepted">
<day>21</day>
<month>8</month>
<year>2019</year>
</date>
</history>
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<copyright-statement>© The Author(s) 2019</copyright-statement>
<copyright-year>2019</copyright-year>
<copyright-holder content-type="society">SAGE Publications Ltd unless otherwise noted. Manuscript content on this site is licensed under Creative Commons Licenses</copyright-holder>
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</permissions>
<abstract abstract-type="short">
<p>Our previous study indicated an important protective role of transient receptor potential melastatin 2 (TRPM2) in controlling bacterial clearance in macrophages during polymicrobial sepsis by regulating heme oxygenase-1. Autophagy is necessary for macrophages to kill invasive bacteria. In the present study, TRPM2 knockout (KO) mice show decreased heme oxygenase-1 and autophagy in peritoneal macrophages after caecal ligation and puncture surgery. Caecal ligation and puncture-induced autophagy in peritoneal macrophages is dependent on heme oxygenase-1. TRPM2 KO mice treated with heme oxygenase-1 inducer before caecal ligation and puncture significantly increase autophagy of peritoneal macrophages, bacterial clearance rate and survival rate. In addition, TRPM2 KO mice treated with heme oxygenase-1 inducer before caecal ligation and puncture significantly attenuate organ injury and systemic inflammation. These improvements are reversed by autophagy inhibitor. Therefore, our findings suggest that TRPM2-mediated heme oxygenase-1 has a role for bacterial clearance possibly by regulating autophagy in peritoneal macrophages during polymicrobial sepsis.</p>
</abstract>
<kwd-group>
<kwd>Transient receptor potential melastatin 2</kwd>
<kwd>heme oxygenase-1</kwd>
<kwd>autophagy</kwd>
<kwd>macrophage</kwd>
<kwd>sepsis</kwd>
</kwd-group>
<funding-group>
<award-group id="award1-1753425919875796">
<funding-source id="funding1-1753425919875796">
<institution-wrap>
<institution>National Natural Science Foundation of China</institution>
<institution-id institution-id-type="FundRef">http://doi.org/10.13039/501100001809</institution-id>
</institution-wrap>
</funding-source>
<award-id rid="funding1-1753425919875796">81501702</award-id>
</award-group>
<award-group id="award2-1753425919875796">
<funding-source id="funding2-1753425919875796">
<institution-wrap>
<institution>Natural Science Foundation of Zhejiang Province</institution>
<institution-id institution-id-type="FundRef">http://doi.org/10.13039/501100004731</institution-id>
</institution-wrap>
</funding-source>
<award-id rid="funding2-1753425919875796">LY15H150007</award-id>
</award-group>
</funding-group>
</article-meta>
</front>
</pmc>
<affiliations>
<list>
<country>
<li>République populaire de Chine</li>
</country>
</list>
<tree>
<country name="République populaire de Chine">
<noRegion>
<name sortKey="Qian, Xiaowei" sort="Qian, Xiaowei" uniqKey="Qian X" first="Xiaowei" last="Qian">Xiaowei Qian</name>
</noRegion>
<name sortKey="Chen, Xinzhong" sort="Chen, Xinzhong" uniqKey="Chen X" first="Xinzhong" last="Chen">Xinzhong Chen</name>
<name sortKey="Cheng, Hao" sort="Cheng, Hao" uniqKey="Cheng H" first="Hao" last="Cheng">Hao Cheng</name>
<name sortKey="Cheng, Hao" sort="Cheng, Hao" uniqKey="Cheng H" first="Hao" last="Cheng">Hao Cheng</name>
</country>
</tree>
</affiliations>
</record>

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