1. Pancreatology. 2019 Jun;19(4):557-565. doi: 10....
創建於:2025年11月25日
創建於:2025年11月25日
miR-148a suppresses autophagy by down-regulation of IL-6/STAT3 signaling in
cerulein-induced acute pancreatitis.
Miao B(1), Qi WJ(2), Zhang SW(1), Wang H(1), Wang C(1), Hu L(1), Huang GW(1), Li
SR(1), Wang H(1).
Author information:
(1)Department of Infectious Disease, Beijing Friendship Hospital, Beijing,
100010, China.
(2)Department of Infectious Disease, Beijing Friendship Hospital, Beijing,
100010, China. Electronic address: [email protected].
Acute pancreatitis (AP) is a type of sterile inflammation of the pancreas,
potentially leading to systemic inflammatory response syndrome or multiple organ
failure. An emerging evidence that dysfunction of miRNA expression may alter
pivotal physiological functions and lead to inflammation infiltration and
complication of multiple diseases, including AP. Here, the AP model was
successfully replicated using cerulein in聽vitro and in聽vivo. RT-qPCR was used to
detect low expression of miR-148a in AP. This study verified that IL-6 was a
direct target of miR-148a. Over-expression of miR-148a decreased the mRNA and
protein levels of IL-6 by RT-qPCR and Elisa. Moreover, over-expression of
miR-148a improved the pathological state of AP through H&E and MPO staining and
transmission electron microscopy. After over-expressing miR-148a, Western blot
and immunohistochemical method were used to confirm the reduction of
autophagosomes and autolysosomes, blockade of the levels of p-STAT3, LC3-II,
ATG7, ATG4c, Beclin1 and the increased p62 expression in AP. The expression of
LAMP-2 was not significantly different. In addition, IL-6 and AG490, the
IL-6/STAT3 signaling inhibitor, were used to verify the role of IL-6/STAT3
signaling in the regulation of miR-148a on autophagy in cerulein-induced AP
in聽vitro and in聽vivo. Taken together, our findings indicate that miR-148a
suppresses autophagy via regulating IL-6/STAT3 signaling in cerulein-induced AP
in聽vitro and in聽vivo. The miR-148a appears to be a promising candidate for the
gene therapy of AP.
Copyright 漏 2019 IAP and EPC. Published by Elsevier B.V. All rights reserved.
DOI: 10.1016/j.pan.2019.04.014
PMID: 31122822 [Indexed for MEDLINE]
Efficacy and safety of Tongfu powder in acute pancreatitis patients with
gastrointestinal dysfunction: a clinical trial.
Miao B(1), Li FW(1), Zhang SW(1), Wang H(1), Qi WJ(1), Wang C(1).
Author information:
(1)Department of Infectious Disease, Beijing Friendship Hospital, Capital
Medical University, Beijing, People's Republic of China, [email protected].
OBJECTIVE: To evaluate the efficacy and safety of Tongfu powder for external
application on Sh茅nqu猫 (the umbilicus, hereafter, Tongfu powder) versus
mosapride in acute pancreatitis (AP) patients with gastrointestinal dysfunction.
METHODS: A total of 102 AP patients were diagnosed using the latest Atlanta
Criterion and recruited at the Department of Infectious Disease, Beijing
Friendship Hospital (Beijing, People's Republic of China) from August 2014 to
December 2016. Patients were randomized into the Tongfu powder group and
mosapride group using the random table. Information on scores (eg, the
gastrointestinal function score) on days 1 and 7 of hospitalization, biochemical
indicators (eg, interleukin [IL]-2 and IL-6), indicators for curative effects
(eg, first defecation time, bowel sound recovery time, hospitalization costs,
and duration) were collected and compared between the 2 groups.
RESULTS: The gastrointestinal function score decreased significantly after
treatment, and the changes were significantly different between the Tongfu
powder group and the mosapride group (P<0.05). Significantly shorter time to
first defecation and bowel sound recovery was observed in the Tongfu powder
group versus the mosapride group (P<0.05). The improvements of IL-2, IL-4,
intestinal fatty acid binding protein, motilin, and vasoactive intestinal
peptide in the Tongfu powder group were higher than those in the mosapride group
(P<0.05). There were no significant differences in hospital cost and length of
hospital stay between the 2 groups.
CONCLUSION: This study suggested that Tongfu powder for external application may
improve gastrointestinal function for AP patients compared with mosapride.
DOI: 10.2147/DDDT.S163645
PMCID: PMC6217005
PMID: 30464398 [Indexed for MEDLINE]
Conflict of interest statement: Disclosure The authors report no conflicts of
interest in this work.
Splenic abscess caused by Streptococcus gallolyticus subsp. pasteurianus as
presentation of a pancreatic cancer.
Su Y(1), Miao B, Wang H, Wang C, Zhang S.
Author information:
(1)Department of Infection and Critical Care Medicine, Beijing Friendship
Hospital, Capital University of Medical Sciences, Beijing, China.
Splenic abscesses caused by Streptococcus bovis are rarely reported in the
literature and are mainly seen in patients with endocarditis and associated
colonic neoplasia/carcinoma. We report the first case of splenic abscess caused
by Streptococcus gallolyticus subsp. pasteurianus (Streptococcus bovis biotype
II/2) as presentation of a pancreatic cancer.
DOI: 10.1128/JCM.01709-13
PMCID: PMC3838054
PMID: 24025909 [Indexed for MEDLINE]
Magnolol pretreatment prevents sepsis-induced intestinal dysmotility by
maintaining functional interstitial cells of Cajal.
Miao B(1), Zhang S, Wang H, Yang T, Zhou D, Wang BE.
Author information:
(1)Department of Infection, Beijing Friendship Hospital, Capital Medical
University, Beijing 100050, China.
The purpose of this study was to investigate the mechanism by which magnolol
treatment prevents lipopolysaccharide (LPS)-induced septic dysmotility in mice.
Sepsis was induced by intravenous tail vein injection of LPS (4 mg/kg body
weight). Animals were divided into three groups: the magnolol-treated septic
group, the placebo-treated septic group, and the control group. Intestinal
transit and circular smooth muscle contraction were measured 12 h after LPS
injection, and immunocytochemisty was performed to study the morphology of
interstitial cells of Cajal (ICCs). Stem cell factor (SCF) expression and c-kit
phosphorylation were determined by Western blot analysis, and the mRNA levels of
inducible NO synthase (iNOS) were determined by RT-PCR. Nitric oxide (NO)
content, superoxide dismutase (SOD) activity, and malondialdehyde (MDA)
concentration were detected using commercial kits. Intestinal transit and
muscular contractility were significantly lower in the LPS-treated group than in
the control group. Immunocytochemical experiments showed that the total number
of ICCs, and the total and average lengths of the ICC processes were
significantly decreased in the LPS-treated group compared with those in the
control group. In LPS-treated animals, magnolol pretreatment significantly
accelerated intestinal transit, increased circular muscle contraction, and
prevented ICC morphology changes. Phosphorylation of c-kit and expression of SCF
were significantly downregulated in LPS-treated animals compared with control
animals. Magnolol pretreatment prevented sepsis-induced decreases in c-kit
phosphorylation and SCF expression in LPS-treated animals. Magnolol pretreatment
prevented the sepsis-induced increase in NO concentration, iNOS expression, and
MDA concentration, and decrease in SOD activity in LPS-treated animals. Our
results suggest that magnolol treatment prevents sepsis-induced intestinal
dysmotility by regulating SCF/c-kit and NO signaling to maintain functional
ICCs.
DOI: 10.1007/s10753-013-9617-z
PMID: 23436158 [Indexed for MEDLINE]
基于苗彬目前发表的论文(好像近5年没有文章),现有课题(关于厚朴酚的基础课题:厚朴酚通过调控巨噬细胞代谢重编程途径抑制SAP肺损伤的机制研究和基于肺与大肠相表里理论研究厚朴酚对重症急性胰腺炎肺损伤的作用机理和TLR4/AKT与SCF/c-kit信号通路串话的分子机制(18年已结题)),设计博士研究计划书
下面给出一份围绕“厚朴酚‑巨噬细胞代谢重编程‑miR‑148a/IL‑6/STAT3‑自噬‑肺肠轴”主线、并承接您团队既往工作基础的博士研究计划书(可直接用于申请材料/开题报告的框架与内容要点)。文末附参考文献(限于您提供的4篇代表作)。如需,我也可以把它排版成可下载的Word版本。
中文:
厚朴酚通过调控巨噬细胞代谢重编程与 miR‑148a–IL‑6/STAT3–自噬通路,重塑“肺‑肠轴”微环境以缓解重症急性胰腺炎相关肺损伤的机制研究
英文:
Magnolol Attenuates Severe Acute Pancreatitis–Associated Lung Injury by Reprogramming Macrophage Immunometabolism and Modulating the miR‑148a–IL‑6/STAT3–Autophagy Axis Along the Gut–Lung Axis
重症急性胰腺炎(SAP)常并发急性肺损伤/ARDS,是决定预后的关键并发症。其病理生理具有“肺‑肠轴”特征:肠屏障破坏与蠕动障碍 → 菌群和内毒素经门静脉/淋巴转位 → 全身炎症与肺泡‑毛细血管屏障受损;其中先天免疫细胞(尤其巨噬细胞)的代谢状态、炎症因子级联与自噬稳态互相牵制,塑造损伤结局。
本团队在相关通路与干预方面具备系统积累:
核心科学问题:
总体目标: 阐明厚朴酚通过巨噬细胞代谢‑炎症‑自噬联动与肺‑肠轴跨器官调控多通路协同,缓解 SAP‑ALI 的系统机制,并提出可转化的分子与功能性标志物。
中心假设: 厚朴酚通过抑制 TLR4/AKT‑mTOR/HIF‑1α 轴所驱动的促炎性糖酵解,促使巨噬细胞向炎症分辨/修复表型转化;同时上调 miR‑148a,抑制 IL‑6/STAT3‑异常自噬;在外周组织保全 SCF/c‑kit‑ICC 功能、恢复肠动力,减轻肠源性促炎负荷,最终改善 SAP‑ALI。
动物建模(双模型并行) → 厚朴酚干预 ± 通路抑制/遗传/代谢药理学 →
肺损伤综合表型评估 ↔ 巨噬细胞代谢‑表型‑信号(Aim1) ↔ miR‑148a/IL‑6/STAT3/自噬网络(Aim2) ↔
肠动力‑ICC‑屏障‑菌群与肺表型联动(Aim3) → 机制整合与关键节点验证 → 小型临床关联
[1] Miao B, Qi WJ, Zhang SW, et al. miR‑148a suppresses autophagy by down‑regulation of IL‑6/STAT3 signaling in cerulein‑induced acute pancreatitis. Pancreatology. 2019;19(4):557‑565. doi:10.1016/j.pan.2019.04.014.
[2] Miao B, Li FW, Zhang SW, et al. Efficacy and safety of Tongfu powder in acute pancreatitis patients with gastrointestinal dysfunction: a clinical trial. Drug Des Devel Ther. 2018;12:3665‑3673. doi:10.2147/DDDT.S163645.
[3] Su Y, Miao B, Wang H, et al. Splenic abscess caused by Streptococcus gallolyticus subsp. pasteurianus as presentation of a pancreatic cancer. J Clin Microbiol. 2013;51(12):4249‑4251. doi:10.1128/JCM.01709‑13.
[4] Miao B, Zhang S, Wang H, et al. Magnolol pretreatment prevents sepsis‑induced intestinal dysmotility by maintaining functional interstitial cells of Cajal. Inflammation. 2013;36(4):897‑906. doi:10.1007/s10753‑013‑9617‑z.
本研究拟在团队“miR‑148a‑IL‑6/STAT3‑自噬轴”与“厚朴酚‑SCF/c‑kit‑ICC”两大前期成果基础上,构建“巨噬细胞免疫代谢‑炎症‑自噬‑肺肠轴”统一机制模型。通过双动物模型、代谢流与自噬通量测定、miRNA 操作及通路干预,阐明厚朴酚缓解 SAP‑ALI 的系统机制,并以血浆 miR‑148a 等作为转化标志物开展临床关联验证。研究将为 SAP‑ALI 提供可行的分子靶点与中药单体干预证据,兼具机制深度与转化前景。
如果需要,我可以把上述内容精炼成国家/省部级博士课题申请书版式(含摘要、立项依据、研究基础、研究方案、进度安排、经费概算表格等),或根据贵院模板进行逐项对齐与字数控制。