
浏览全部资源
扫码关注微信
1.陆军特色医学中心(第三军医大学大坪医院):,麻醉科,重庆
2.陆军特色医学中心(第三军医大学大坪医院):,野战外科研究部战伤休克与输血研究室,重庆
毛庆祥,E-mail: qxmao@tmmu.edu.cn
收稿日期:2025-04-28,
修回日期:2025-07-04,
录用日期:2025-07-05,
纸质出版日期:2025-08-15
移动端阅览
王维飞,邓皓月,杜云霞,等.瑞马唑仑对脓毒症小鼠肠道屏障功能的保护作用[J].陆军军医大学学报,2025,47(15):1806-1814.DOI:10.16016/j.2097-0927.202504115.
WANG W F,DENG H Y,DU Y X,et al.Protective effect of remimazolam on intestinal barrier function in septic mice[J].J Army Med Univ,2025,47(15):1806-1814.DOI:10.16016/j.2097-0927.202504115.
王维飞,邓皓月,杜云霞,等.瑞马唑仑对脓毒症小鼠肠道屏障功能的保护作用[J].陆军军医大学学报,2025,47(15):1806-1814.DOI:10.16016/j.2097-0927.202504115. DOI:
WANG W F,DENG H Y,DU Y X,et al.Protective effect of remimazolam on intestinal barrier function in septic mice[J].J Army Med Univ,2025,47(15):1806-1814.DOI:10.16016/j.2097-0927.202504115. DOI:
目的
2
探讨新型苯二氮䓬类镇静药瑞马唑仑(remimazolam,Remi)对脓毒症小鼠肠道屏障功能的保护作用。
方法
2
采用盲肠结扎穿孔 (cecal ligation and puncture,CLP)构建脓毒症模型,将96只成年雄性SPF级C57BL/6小鼠按随机数字表法分为假手术(Sham)组、脓毒症(Sepsis)组、脓毒症+瑞马唑仑(Sepsis+Remi)组,记录各组小鼠72 h存活情况和存活时间,观察小鼠肠道病理结构、肠道屏障功能指标、肠道ZO-1蛋白表达及肠道巨噬细胞极化变化来评估Remi对肠道屏障功能的影响。采取脂多糖(lipopolysaccharide,LPS)刺激RAW264.7细胞24 h构建脓毒症体外模型,分为对照(Control)组、LPS组、瑞马唑仑干预(LPS+Remi)组,免疫荧光染色观察巨噬细胞表型、线粒体形态及线粒体活性氧(mitochondrial reactive oxygen species,MtROS),Western blot检测诱导型一氧化碳合酶(inducible nitric oxide synthase, iNOS)和甘露糖受体(cluster of differentiation 206,CD206)蛋白表达。
结果
2
与Sepsis组相比,Remi干预后脓毒症小鼠的存活率从12.50%提升至68.75%,存活时间显著延长(
P
<
0.05),肠道绒毛结构部分恢复,间质水肿程度减轻,炎症细胞浸润减少,功能性指标显著改善。同时,体内外实验均发现,相较于Sham组和Control组,Sepsis组和LPS组巨噬细胞iNOS表达增加、CD206表达减少(
P
<
0.05),而Sepsis+Remi组和LPS+Remi组可部分逆转此现象(
P
<
0.05)。LPS组巨噬细胞线粒体呈明显碎片化,且相较于Control组,MtROS显著增加(
P
<
0.05);而相较于LPS组,LPS+Remi组巨噬细胞线粒体碎片化显著改善,MtROS也明显减少(
P
<
0.05)。
结论
2
Remi可通过调控线粒体动力失衡诱导的氧化损伤,改善巨噬细胞炎性活化,进而在保护脓毒症小鼠肠道屏障功能中发挥作用。
Objective To investigate the protective effects of remimazolam (Remi)
a novel benzodiazepine sedative
on intestinal barrier function in septic mice. Methods A mouse model of sepsis was established using cecal ligation and puncture (CLP). A total of 96 SPF-grade adult male C57BL/6 mice were randomized into sham operation (Sham)
sepsis (Sepsis)
and sepsis with Remi intervention (Sepsis+Remi) groups. Survival rate and survival time were recorded within 72 h after modeling. Intestinal pathological alterations
barrier functional indicators
ZO-1 expression
and macrophage polarization status were observed and detected to evaluate the effects of Remi. Lipopolysaccharide (LPS) was used to treat RAW264.7 cells for 24 h to simulate
in vitro
sepsis model. The cells were divided into control (Control)
LPS
and LPS+Remi groups. Immunofluorescence staining was performed to assess macrophage phenotype
mitochondrial morphology
and mitochondrial reactive oxygen species (MtROS)
and Western blotting was applied to detect the protein expression of iNOS and CD206. Results Compared with the sepsis group
Remi intervention s
ignificantly improved the survival rate of septic mice from 12.50% to 68.75% and markedly prolonged survival duration (
P
<
0.05). Histopathological analysis demonstrated partial restoration of intestinal villus architecture
accompanied with attenuated interstitial edema and reduced inflammatory cell infiltration after Remi intervention. Furthermore
the intervention group demonstrated significant improvement in functional indicators. Both
in vivo
and
in vitro
experiments demonstrated elevated iNOS and decreased CD206 expression in the septic mice and LPS-stimulated macrophages(
P
<
0.05)
which were partially reversed after Remi intervention. Furthermore
LPS-stimulated macrophages exhibited fragmented mitochondria and elevated MtROS level
whereas Remi intervention ameliorated these conditions(
P
<
0.05). Conclusion Remi protects intestinal barrier function in septic mice by mitigating mitochondrial dynamics imbalance-induced oxidative damage and ameliorating inflammatory macrophage activation.
MEYER N J , PRESCOTT H C . Sepsis and septic shock [J]. N Engl J Med , 2024 , 391 ( 22 ): 2133 - 2146 . DOI: 10.1056/nejmra2403213 http://dx.doi.org/10.1056/nejmra2403213 .
RUDD K E , JOHNSON S C , AGESA K M , et al . Global, regional, and national sepsis incidence and mortality, 1990-2017: analysis for the Global Burden of Disease Study [J]. Lancet , 2020 , 395 ( 10219 ): 200 - 211 . DOI: 10.1016/S0140-6736(19)32989-7 http://dx.doi.org/10.1016/S0140-6736(19)32989-7 .
MITTAL R , COOPERSMITH C M . Redefining the gut as the motor of critical illness [J]. Trends Mol Med , 2014 , 20 ( 4 ): 214 - 223 . DOI: 10.1016/j.molmed.2013.08.004 http://dx.doi.org/10.1016/j.molmed.2013.08.004 .
SNEYD J R , RIGBY-JONES A E . Remimazolam for anaesthesia or sedation [J]. Curr Opin Anaesthesiol , 2020 , 33 ( 4 ): 506 - 511 . DOI: 10.1097/ACO.0000000000000877 http://dx.doi.org/10.1097/ACO.0000000000000877 .
KIM K M . Remimazolam: pharmacological characteristics and clinical applications in anesthesiology [J]. Anesth Pain Med (Seoul) , 2022 , 17 ( 1 ): 1 - 11 . DOI: 10.17085/apm.21115 http://dx.doi.org/10.17085/apm.21115 .
FANG H H , ZHANG Y D , WANG J C , et al . Remimazolam reduces sepsis-associated acute liver injury by activation of peripheral benzodiazepine receptors and p38 inhibition of macrophages [J]. Int Immunopharmacol , 2021 , 101 ( Pt B ): 108331 . DOI: 10.1016/j.intimp.2021.108331 http://dx.doi.org/10.1016/j.intimp.2021.108331 .
LIU X L , LIN S P , ZHONG Y Y , et al . Remimazolam protects against LPS-induced endotoxicity improving survival of endotoxemia mice [J]. Front Pharmacol , 2021 , 12 : 739603 . DOI: 10.3389/fphar.2021.739603 http://dx.doi.org/10.3389/fphar.2021.739603 .
LIU X R , SHUI G J , WANG Y , et al . Remimazolam alleviates myocardial ischemia/reperfusion injury and inflammation via inhibition of the NLRP3/IL-1β pathway in mice [J]. Int J Mol Med , 2025 , 55 ( 4 ): 57 . DOI: 10.3892/ijmm.2025.5498 http://dx.doi.org/10.3892/ijmm.2025.5498 .
YANG M M , ZHU H R , PENG L , et al . Neuronal HIPK2-HDAC3 axis regulates mitochondrial fragmentation to participate in stroke injury and post-stroke anxiety like behavior [J]. Exp Neurol , 2024 , 380 : 114906 . DOI: 10.1016/j.expneurol.2024.114906 http://dx.doi.org/10.1016/j.expneurol.2024.114906 .
MAZUMDER S , BINDU S , DE R , et al . Emerging role of mitochondrial DAMPs, aberrant mitochondrial dynamics and anomalous mitophagy in gut mucosal pathogenesis [J]. Life Sci , 2022 , 305 : 120753 . DOI: 10.1016/j.lfs.2022.120753 http://dx.doi.org/10.1016/j.lfs.2022.120753 .
LIAO S S , LUO J , KADIER T , et al . Mitochondrial DNA release contributes to intestinal ischemia/reperfusion injury [J]. Front Pharmacol , 2022 , 13 : 854994 . DOI: 10.3389/fphar.2022.854994 http://dx.doi.org/10.3389/fphar.2022.854994 .
RITTIRSCH D , HUBER-LANG M S , FLIERL M A , et al . Immunodesign of experimental sepsis by cecal ligation and puncture [J]. Nat Protoc , 2009 , 4 ( 1 ): 31 - 36 . DOI: 10.1038/nprot.2008.214 http://dx.doi.org/10.1038/nprot.2008.214 .
中华医学会消化病学分会炎症性肠病学组病理分组 , 叶子茵 , 肖书渊 , 等 . 中国炎症性肠病病理诊断专家指导意见 [J]. 中华炎性肠病杂志 , 2021 , 05 ( 01 ): 5 - 20 . DOI: 10.3760/cma.j.cn101480-20200731-00086 http://dx.doi.org/10.3760/cma.j.cn101480-20200731-00086 .
Pathology Subgroup of Inflammatory Bowel Disease Group from Chinese Society of Gastroenterology , YE Z Y , XIAO S Y , et al . Experts guideline on pathological assessment of inflammatory bowel disease in China [J]. Chin J Inflamm Bowel Dis , 2021 ( 1 ): 5 - 20 . DOI: 10.3760/cma.j.cn101480-20200731-00086 http://dx.doi.org/10.3760/cma.j.cn101480-20200731-00086 .
MEFTAHI G H , BAHARI Z , ZAREI MAHMOUDABADI A , et al . Applications of Western blot technique: From bench to bedside [J]. Biochem Mol Biol Educ , 2021 , 49 ( 4 ): 509 - 517 . DOI: 10.1002/bmb.21516 http://dx.doi.org/10.1002/bmb.21516 .
RHEE C , JONES T M , HAMAD Y , et al . Prevalence, underlying causes, and preventability of sepsis-associated mortality in US acute care hospitals [J]. JAMA Netw Open , 2019 , 2 ( 2 ): e187571 . DOI: 10.1001/jamanetworkopen. 2018.7571 http://dx.doi.org/10.1001/jamanetworkopen.2018.7571 .
NAIR S , SOBOTKA K S , JOSHI P , et al . Lipopolysaccharide-induced alteration of mitochondrial morphology induces a metabolic shift in microglia modulating the inflammatory response in vitro and in vivo [J]. Glia , 2019 , 67 ( 6 ): 1047 - 1061 . DOI: 10.1002/glia.23587 http://dx.doi.org/10.1002/glia.23587 .
ZHANG L X , MA C , WANG X Y , et al . Lipopolysaccharide-induced proliferation and glycolysis in airway smooth muscle cells via activation of Drp1 [J]. J Cell Physiol , 2019 , 234 ( 6 ): 9255 - 9263 . DOI: 10.1002/jcp.27605 http://dx.doi.org/10.1002/jcp.27605 .
MANCINI N L , GOUDIE L K , XU W , et al . Perturbed mitochondrial dynamics is a novel feature of colitis that can be targeted to lessen disease [J]. Cell Mol Gastroenterol Hepatol , 2020 , 10 ( 2 ): 287 - 307 . DOI: 10.1016/j.jcmgh.2020.04.004 http://dx.doi.org/10.1016/j.jcmgh.2020.04.004 .
SHARMA J , KHAN S , SINGH N C , et al . ORMDL3 regulates NLRP3 inflammasome activation by maintaining ER-mitochondria contacts in human macrophages and dictates ulcerative colitis patient outcome [J]. J Biol Chem , 2024 , 300 ( 4 ): 107120 . DOI: 10.1016/j.jbc.2024.107120 http://dx.doi.org/10.1016/j.jbc.2024.107120 .
SUN M M , ZENG Z H , XU G G , et al . Promoting mitochondrial dynamic equilibrium attenuates sepsis-induced acute lung injury by inhibiting proinflammatory polarization of alveolar macrophages [J]. Shock , 2023 , 60 ( 4 ): 603 - 612 . DOI: 10.1097/SHK.0000000000002206 http://dx.doi.org/10.1097/SHK.0000000000002206 .
0
浏览量
0
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621