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Li C, Wang L, Xie W, Chen E, Chen Y, Li H, Can D, Lei A, Wang Y, Zhang J. TGR5 deficiency in excitatory neurons ameliorates Alzheimer's pathology by regulating APP processing. SCIENCE ADVANCES 2024; 10:eado1855. [PMID: 38941459 PMCID: PMC11212731 DOI: 10.1126/sciadv.ado1855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 05/23/2024] [Indexed: 06/30/2024]
Abstract
Bile acids (BAs) metabolism has a significant impact on the pathogenesis of Alzheimer's disease (AD). We found that deoxycholic acid (DCA) increased in brains of AD mice at an early stage. The enhanced production of DCA induces the up-regulation of the bile acid receptor Takeda G protein-coupled receptor (TGR5), which is also specifically increased in neurons of AD mouse brains at an early stage. The accumulation of exogenous DCA impairs cognitive function in wild-type mice, but not in TGR5 knockout mice. This suggests that TGR5 is the primary receptor mediating these effects of DCA. Furthermore, excitatory neuron-specific knockout of TGR5 ameliorates Aβ pathology and cognition impairments in AD mice. The underlying mechanism linking TGR5 and AD pathology relies on the downstream effectors of TGR5 and the APP production, which is succinctly concluded as a "p-STAT3-APH1-γ-secretase" signaling pathway. Our studies identified the critical role of TGR5 in the pathological development of AD.
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Affiliation(s)
- Chenli Li
- Institute of Neuroscience, Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Xiamen University, Xiamen, Fujian 361005, China
| | - Liangjie Wang
- Institute of Neuroscience, Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Xiamen University, Xiamen, Fujian 361005, China
| | - Wenting Xie
- Institute of Neuroscience, Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Xiamen University, Xiamen, Fujian 361005, China
| | - Erqu Chen
- Institute of Neuroscience, Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Xiamen University, Xiamen, Fujian 361005, China
| | - Yanbing Chen
- Institute of Neuroscience, Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Xiamen University, Xiamen, Fujian 361005, China
| | - Huifang Li
- Institute of Neuroscience, Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Xiamen University, Xiamen, Fujian 361005, China
| | - Dan Can
- Institute of Neuroscience, Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Xiamen University, Xiamen, Fujian 361005, China
| | - Aiyu Lei
- Institute of Neuroscience, Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Xiamen University, Xiamen, Fujian 361005, China
| | - Yue Wang
- Department of Cell Biology and Genetics, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350122, China
| | - Jie Zhang
- Institute of Neuroscience, Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Xiamen University, Xiamen, Fujian 361005, China
- Department of Cell Biology and Genetics, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350122, China
- Institute of Neuroscience, Fujian Medical University, Fuzhou, Fujian, 350122, China
- The Key Laboratory of Neural and Vascular Biology, Ministry of Education, College of Basic Medicine, Hebei Medical University, Shijiazhuang, China
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Song M, Tang Y, Cao K, Qi L, Xie K. Unveiling the role of interleukin-6 in pancreatic cancer occurrence and progression. Front Endocrinol (Lausanne) 2024; 15:1408312. [PMID: 38828409 PMCID: PMC11140100 DOI: 10.3389/fendo.2024.1408312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 05/06/2024] [Indexed: 06/05/2024] Open
Abstract
Pancreatic cancer is difficult to diagnose early and progresses rapidly. Researchers have found that a cytokine called Interleukin-6 (IL-6) is involved in the entire course of pancreatic cancer, promoting its occurrence and development. From the earliest stages of pancreatic intraepithelial neoplasia to the invasion and metastasis of pancreatic cancer cells and the appearance of tumor cachexia, IL-6 drives oncogenic signal transduction pathways and immune escape that accelerate disease progression. IL-6 is considered a biomarker for pancreatic cancer diagnosis and prognosis, as well as a potential target for treatment. IL-6 antibodies are currently being explored as a hot topic in oncology. This article aims to systematically explain how IL-6 induces the deterioration of normal pancreatic cells, with the goal of finding a breakthrough in pancreatic cancer diagnosis and treatment.
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Affiliation(s)
- Meihui Song
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
- Division of Gastroenterology, Institute of Digestive Disease, Qingyuan People’s Hospital, The Affiliated Qingyuan Hospital of Guangzhou Medical University, Qingyuan, Guangdong, China
| | - Ying Tang
- Department of Gastroenterology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Kaimei Cao
- Division of Gastroenterology, Institute of Digestive Disease, Qingyuan People’s Hospital, The Affiliated Qingyuan Hospital of Guangzhou Medical University, Qingyuan, Guangdong, China
- School of Pharmaceutical Sciences, Dali University, Dali, Yunnan, China
| | - Ling Qi
- Division of Gastroenterology, Institute of Digestive Disease, Qingyuan People’s Hospital, The Affiliated Qingyuan Hospital of Guangzhou Medical University, Qingyuan, Guangdong, China
| | - Keping Xie
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
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Jia Z, Lv D, Chen T, Shi Z, Li X, Ma J, Gao Z, Zhong C. Network pharmacology and in vivo experiment-based strategy for investigating the mechanism of chronic prostatitis/chronic pelvic pain syndrome in QianLieJinDan tablets. Heliyon 2024; 10:e29975. [PMID: 38726171 PMCID: PMC11078777 DOI: 10.1016/j.heliyon.2024.e29975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 05/12/2024] Open
Abstract
Background Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) is a common urinary system disease that is prone to recurrence. It typically leads to varying degrees of pelvic pain and discomfort, as well as symptoms related to the urinary system in affected patients. QianLieJinDan tablets (QLJD), a traditional Chinese medicine, have shown promising therapeutic effects on CP/CPPS in clinical practice, but the underlying mechanisms of QLJD in treating CP/CPPS have not been determined. Objective To reveal the phytochemical characterization and multitarget mechanism of QLJD on CP/CPPS. Methods The concentrations of the components of QLJD were determined using UHPLC-Q Exactive Orbitrap-MS. Utilizing network pharmacology approaches, the potential components, targets, and pathways involved in the treatment of CP/CPPS caused by QLJD were screened. Molecular docking calculations were employed to assess the affinity between the components of the QLJD and potential targets, revealing the optimal molecular conformation and binding site. Finally, the therapeutic efficacy and potential underlying mechanisms of QLJD were investigated through pharmacological experiments. Results In this study, a total of 35 components targeting 29 CP-related genes were identified, among which quercetin, baicalin, icariin, luteolin, and gallic acid were the major constituents. Enrichment analysis revealed that the potential targets were involved mainly in the regulation of cytokines, cell proliferation and apoptosis, and the oxidative stress response and were primarily associated with the cytokine‒cytokine receptor interaction pathway, the IL-17 signaling pathway, the Th17 cell differentiation pathway, and the JAK-STAT signaling pathway. In vivo experiments demonstrated that QLJD effectively attenuated the infiltration of CD3+ T cells and the expression of ROS in a CP/CPPS model rat prostate tissue. Furthermore, through the inhibition of IL-6 and STAT3 expression, QLJD reduced the differentiation of Th17 cells, thereby ameliorating pathological injury and prostatic index in prostate tissue. Conclusion The potential of QLJD as an anti-CP/CPPS agent lies in its ability to interfere with the expression of IL-6 and STAT3, inhibit Th17 cell differentiation, reduce inflammatory cell infiltration in rat prostate tissue, and alleviate oxidative stress damage through its multi-component, multi-target, and multi-pathway effects.
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Affiliation(s)
- Zhichao Jia
- Shandong University of Traditional Chinese Medicine, Shandong Jinan 250000, China
| | - Dongfang Lv
- Shandong University of Traditional Chinese Medicine, Shandong Jinan 250000, China
| | - Tengfei Chen
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong Jinan 250000, China
| | - Zhuozhuo Shi
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong Jinan 250000, China
| | - Xiaolin Li
- Shandong University of Traditional Chinese Medicine, Shandong Jinan 250000, China
| | - Junguo Ma
- Shandong Zhongda Pharmaceutical Company Ltd., Shandong Jinan 250000, China
| | - Zhaowang Gao
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong Jinan 250000, China
| | - Chongfu Zhong
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Shandong Jinan 250000, China
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Gao J, Rouzi MRY, Zhang H, Cai X, Xu B, Lu J, Lei T. Association of serum CTRP4 levels with vascular endothelial function in patients with type 2 diabetes mellitus: CTRP4 ameliorating inflammation, proliferation and migration in human umbilical vein endothelial cells. Acta Diabetol 2024; 61:565-575. [PMID: 38286878 PMCID: PMC11055794 DOI: 10.1007/s00592-023-02228-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/18/2023] [Indexed: 01/31/2024]
Abstract
OBJECTIVE We investigated the correlation between serum C1q/TNF-related protein 4 (CTRP4) level and flow-mediated dilation (FMD) in patients with type 2 diabetes mellitus (T2DM), and evaluated the biological effects of CTRP4 on human umbilical vein endothelial cells (HUVECs). METHODS A group of 165 patients diagnosed with T2DM were included in this study. Endothelial function was measured with the examination of brachial artery FMD. ELISA kit was used to measure the levels of CTRP4 in serum. HUVECs were stimulated with recombinant CTRP4 protein to assess its biological functions. RESULTS The levels of CTRP4 showed a significant variation among three groups based on FMD tertiles (p = 0.001). What's more, FMD had a significant difference among three CTRP4 tertile groups (p < 0.05) and was negatively related to serum CTRP4 levels (r = -0.270, p < 0.001). In T2DM patients, logistic regression analysis demonstrated that CTRP4 was the primary influence factor of low FMD (p < 0.01). In receiver operating characteristic curve analysis, the area under the curve of CTRP4 for predicting low FMD was 0.66 (95%CI 0.58-0.75). When stimulated HUVECs with recombinant CTRP4 protein, we found that CTRP4 could concentration-dependently ameliorate proliferation and migration of HUVECs in wounding healing and transwell assay. This protein could also decrease the expression of IL-6 and TNF-α and promote the release of NO in HUVEC supernatants, with suppression of NF-κB and STAT3 phosphorylation. CONCLUSIONS Serum CTRP4 concentrations were negatively associated with FMD. CTRP4 alleviated proliferation, migration and inflammation in HUVECs through the suppression of NF-κB and STAT3 signaling pathways.
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Affiliation(s)
- Jie Gao
- Department of Endocrinology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, 164 LanXi Road, Shanghai, 200062, China
| | - Mai Re YanMu Rouzi
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Huihui Zhang
- School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xinghua Cai
- Shanghai Putuo Center School of Clinical Medicine, Anhui Medical University, Hefei, Anhui, China
| | - Bilin Xu
- Department of Endocrinology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, 164 LanXi Road, Shanghai, 200062, China
| | - Jun Lu
- Department of Endocrinology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, 164 LanXi Road, Shanghai, 200062, China
| | - Tao Lei
- Department of Endocrinology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, 164 LanXi Road, Shanghai, 200062, China.
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