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Huang Z, Teng W, Yao L, Xie K, Hang S, He R, Li Y. mTOR signaling pathway regulation HIF-1 α effects on LPS induced intestinal mucosal epithelial model damage. BMC Mol Cell Biol 2024; 25:13. [PMID: 38654163 PMCID: PMC11036631 DOI: 10.1186/s12860-024-00509-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 04/05/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Sepsis-induced small-intestinal injury is associated with increased morbidity and mortality. Our previous study and other papers have shown that HIF-1α has a protective effect on intestinal mucosal injury in septic rats. The purpose of this study is to further verify the protective effect of HIF-1α on intestinal mucosa and its molecular mechanism in vitro experiments. METHODS Caco-2 cells were selected and experiment was divided into 2 parts. Part I: HIF-1α activator and inhibitor were used to treat lipopolysacchrides (LPS)-stimulated Caco-2 cells respectively, to explore the effect of HIF-1α on LPS induced Caco-2 cell epithelial model; Part II: mTOR activator or inhibitor combined with or without HIF-1α activator, inhibitor to treat LPS-stimulated Caco-2 cells respectively, and then the molecular mechanism of HIF-1α reducing LPS induced Caco-2 cell epithelial model damage was detected. RESULTS The results showed that HIF-1α activator decreased the permeability and up regulated tight junction (TJ) expression, while HIF-1α inhibitor had the opposite effect with the HIF-1α activator. mTOR activation increased, while mTOR inhibition decreased HIF-1α protein and expression of its downstream target molecules, which can be attenuated by HIF-1α activator or inhibitor. CONCLUSION This study once again confirmed that HIF-1α alleviates LPS-induced mucosal epithelial model damage through P70S6K signalling pathway. It is of great value to explore whether HIF-2α plays crucial roles in the regulation of mucosal epithelial model functions in the future.
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Affiliation(s)
- Zeyong Huang
- Department of Anesthesiology, Shulan (Hangzhou) Hospital, Shulan International Medical College, Zhejiang Shuren College, 310015, Hangzhou, China
| | - Wenbin Teng
- Department of Anesthesiology, the First Affiliated Hospital, College of Medicine, Zhejiang University, 310001, Hangzhou, China
| | - Liuxu Yao
- Rehabilitation Medicine Center, Department of Anesthesiology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, 310014, Hangzhou, China
| | - Kai Xie
- Department of Anesthesiology, Shaoxing People's Hospital, Zhejiang University, 312000, Shaoxing, China
| | - Suqin Hang
- Department of Anesthesiology, Shulan (Hangzhou) Hospital, Shulan International Medical College, Zhejiang Shuren College, 310015, Hangzhou, China
| | - Rui He
- Department of Anesthesiology, Shaoxing People's Hospital, Zhejiang University, 312000, Shaoxing, China.
| | - Yuhong Li
- Department of Anesthesiology, Shulan (Hangzhou) Hospital, Shulan International Medical College, Zhejiang Shuren College, 310015, Hangzhou, China.
- Department of Anesthesiology, Shulan (Hangzhou) Hospital, Shulan International Medical College, Shuren University, 848 Dongxin Road, Xiacheng District, 310004, Hangzhou, Zhejiang, China.
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Liu D, Yan B, Yin Y, Chen F, Guo C, Li Q, Liu J, Pu L, Wu W, Luo J. PI3Kδ Mediates Fibrosis by Patient-Derived Vitreous. J Transl Med 2024; 104:102026. [PMID: 38307209 DOI: 10.1016/j.labinv.2024.102026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/23/2023] [Accepted: 01/24/2024] [Indexed: 02/04/2024] Open
Abstract
The epithelial-mesenchymal transition (EMT) is a fundamental process in developing fibrotic diseases, including forming epiretinal membranes (ERMs). ERMs can result in irreversible vision loss. Previous research has demonstrated that vitreous (VIT) derived from patients with proliferative diabetic retinopathy can stimulate angiogenesis through the Axl/PI3K/Akt pathway. Building upon this knowledge, we aimed to explore the influence of VIT from patients with macular membranes in ARPE-19 cells. Our findings reveal that patient-derived VIT from individuals with macular membranes promotes EMT and phosphoinositide 3-kinase-delta (PI3Kδ) expression in ARPE-19 cells. To elucidate the function of PI3Kδ in the ERM, we conducted experiments involving the knockout of p110δ, a key subunit of PI3Kδ, and observed that its absence hinders EMT induced by patient-derived VIT. Moreover, p110δ depletion reduces cell proliferation and migration in ARPE-19 cells. Remarkably, these effects were further corroborated by applying the p110δ inhibitor idelalisib, which blocks fibrosis in the laser-induced fibrosis model. Collectively, our results propose that p110δ plays a critical role in the progression of ERMs. Consequently, targeting p110δ emerges as a promising therapeutic approach for mitigating fibrosis. These findings contribute to a better understanding of the underlying mechanisms involved in ERM formation and highlight the potential for p110δ-directed antifibrotic therapy in retinal diseases.
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Affiliation(s)
- Dan Liu
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Ophthalmology, Hunan Key Laboratory of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Bin Yan
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yiwei Yin
- Department of Ophthalmology, Hunan Key Laboratory of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fang Chen
- Hunan Key Laboratory of Molecular Precision Medicine, Xiangya Hospital and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, Hunan, China
| | - Cao Guo
- Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qin Li
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jia Liu
- School of Medicine, Hunan University of Medicine, Huaihua, Hunan, China
| | - Li Pu
- Department of Ophthalmology, Hunan Key Laboratory of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wenyi Wu
- Department of Ophthalmology, Hunan Key Laboratory of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Jing Luo
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
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Şenol H, Ghaffari-Moghaddam M, Bulut Ş, Akbaş F, Köse A, Topçu G. Synthesis and Anticancer Activity of Novel Derivatives of α,β-Unsaturated Ketones Based on Oleanolic Acid: in Vitro and in Silico Studies against Prostate Cancer Cells. Chem Biodivers 2023; 20:e202301089. [PMID: 37596247 DOI: 10.1002/cbdv.202301089] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/16/2023] [Accepted: 08/18/2023] [Indexed: 08/20/2023]
Abstract
Herein, new derivatives of α,β-unsaturated ketones based on oleanolic acid (4 a-i) were designed, synthesized, characterized, and tested against human prostate cancer (PC3). According to the in vitro cytotoxic study, title compounds (4 a-i) showed significantly lower toxicity toward healthy cells (HUVEC) in comparison with the reference drug doxorubicin. The compounds with the lowest IC50 values on PC3 cell lines were 4 b (7.785 μM), 4 c (8.869 μM), and 4 e (8.765 μM). The results of the ADME calculations showed that the drug-likeness parameters were within the defined ranges according to Lipinski's and Jorgensen's rules. For the most potent compounds 4 b, 4 c, and 4 e, a molecular docking analysis using the induced fit docking (IFD) protocol was performed against three protein targets (PARP, PI3K, and mTOR). Based on the IFD scores, compound 4 b had the highest calculated affinity for PARP1, while compound 4 c had higher affinities for mTOR and PI3K. The MM-GBSA calculations showed that the most potent compounds had high binding affinities and formed stable complexes with the protein targets. Finally, a 50 ns molecular dynamics simulation was performed to study the behavior of protein target complexes under in silico physiological conditions.
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Affiliation(s)
- Halil Şenol
- Bezmialem Vakif University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, 34093 Fatih, Istanbul, Türkiye
| | - Mansour Ghaffari-Moghaddam
- Bezmialem Vakif University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, 34093 Fatih, Istanbul, Türkiye
- University of Zabol, Faculty of Science, Department of Chemistry, Zabol, 98615-538, Iran
| | - Şeyma Bulut
- Bezmialem Vakif University, Institute of Health Sciences, Department of Biotechnology, 34093 Fatih, Istanbul, Türkiye
- Bezmialem Vakif University, Faculty of Medicine, Department of Medical Biology, 34093 Fatih, Istanbul, Türkiye
| | - Fahri Akbaş
- Bezmialem Vakif University, Faculty of Medicine, Department of Medical Biology, 34093 Fatih, Istanbul, Türkiye
| | - Aytekin Köse
- Aksaray University, Faculty of Science and Letters, Department of Chemistry, 68100, Aksaray, Türkiye
| | - Gülaçtı Topçu
- Bezmialem Vakif University, Faculty of Pharmacy, Department of Pharmacognosy & Phytochemistry Chemistry, 34093 Fatih, Istanbul, Türkiye
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Wang C, Zhu M, Long X, Wang Q, Wang Z, Ouyang G. Design, Synthesis and Antitumor Activity of 1 H-indazole-3-amine Derivatives. Int J Mol Sci 2023; 24:ijms24108686. [PMID: 37240028 DOI: 10.3390/ijms24108686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
A series of indazole derivatives were designed and synthesized by molecular hybridization strategy, and these compounds were evaluated the inhibitory activities against human cancer cell lines of lung (A549), chronic myeloid leukemia (K562), prostate (PC-3), and hepatoma (Hep-G2) by methyl thiazolyl tetrazolium (MTT) colorimetric assay. Among these, compound 6o exhibited a promising inhibitory effect against the K562 cell line with the IC50 (50% inhibition concentration) value of 5.15 µM, and this compound showed great selectivity for normal cell (HEK-293, IC50 = 33.2 µM). Moreover, compound 6o was confirmed to affect apoptosis and cell cycle possibly by inhibiting Bcl2 family members and the p53/MDM2 pathway in a concentration-dependent manner. Overall, this study indicates that compound 6o could be a promising scaffold to develop an effective and low-toxic anticancer agent.
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Affiliation(s)
- Congyu Wang
- College of Pharmacy, Guizhou University, Guiyang 550025, China
- Guizhou Engineering Laboratory for Synthetic Drugs, Guizhou University, Guiyang 550025, China
| | - Mei Zhu
- Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, China
| | - Xuesha Long
- College of Pharmacy, Guizhou University, Guiyang 550025, China
- Guizhou Engineering Laboratory for Synthetic Drugs, Guizhou University, Guiyang 550025, China
| | - Qin Wang
- College of Pharmacy, Guizhou University, Guiyang 550025, China
- Guizhou Engineering Laboratory for Synthetic Drugs, Guizhou University, Guiyang 550025, China
| | - Zhenchao Wang
- College of Pharmacy, Guizhou University, Guiyang 550025, China
- Guizhou Engineering Laboratory for Synthetic Drugs, Guizhou University, Guiyang 550025, China
- Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, China
| | - Guiping Ouyang
- College of Pharmacy, Guizhou University, Guiyang 550025, China
- Guizhou Engineering Laboratory for Synthetic Drugs, Guizhou University, Guiyang 550025, China
- Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, China
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Chen X, Song QL, Wang JY, Ji R, Li ZH, Cao ML, Mu XF, Guo DY, Zhang Y, Yang J. Profilin1 regulates trophoblast invasion and macrophage differentiation. THE AMERICAN JOURNAL OF PATHOLOGY 2023:S0002-9440(23)00165-7. [PMID: 37164274 DOI: 10.1016/j.ajpath.2023.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/08/2023] [Accepted: 04/18/2023] [Indexed: 05/12/2023]
Abstract
Unexplained recurrent spontaneous abortion (URSA) has been associated with the dysfunction of trophoblasts and decidual macrophages. Current evidence suggests that profilin1 (PFN1) plays an important role in many biological processes. However, little is currently known on whether PFN1 is related to URSA. The location of PFN1 was detected by immunohistochemistry. The level of PFN1 were detected by qRT-PCR, western blot and immunohistochemistry. The proliferation of trophoblasts was detected by CCK8 and EdU assays. Apoptosis of trophoblasts was detected by TUNEL assays. The migration and invasion ability of trophoblasts were assessed by the wound-healing test and transwell test. Macrophages were cultured in trophoblast conditioned medium and the polarization of macrophages was detected. PFN1 expression was observed in in cytotrophoblasts, syncytiotrophoblasts, and extravillous trophoblasts and decreased in the villous tissue of URSA patients. The migration and invasion ability and cell viability of trophoblastic cell lines that underwent PFN1 knockdown significantly decreased, and apoptosis increased. Opposite findings were observed following the overexpression of PFN1 in trophoblastic cells. In addition, PFN1 could regulate trophoblast function through PI3K/AKT signal transduction rather than MAPK signaling pathways. In addition, this study also found that knockdown of PFN1 in trophoblast promotes TNF-α secretion to induce macrophage polarization to M1 phenotype, mediated by the NF- κ B signaling pathway.
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Affiliation(s)
- Xin Chen
- Reproductive Medical Center, Renmin Hospital of Wuhan University and Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei, China
| | - Qian Lin Song
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Jia Yu Wang
- Reproductive Medical Center, Renmin Hospital of Wuhan University and Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei, China
| | - Rui Ji
- Reproductive Medical Center, Renmin Hospital of Wuhan University and Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei, China
| | - Ze Hong Li
- Reproductive Medical Center, Renmin Hospital of Wuhan University and Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei, China
| | - Ming Liang Cao
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xue Feng Mu
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Duan Ying Guo
- Longgang District People's Hospital of Shenzhen, Shenzhen, China
| | - Yan Zhang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, China.
| | - Jing Yang
- Reproductive Medical Center, Renmin Hospital of Wuhan University and Hubei Clinic Research Center for Assisted Reproductive Technology and Embryonic Development, Wuhan, Hubei, China.
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