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Li L, Xin J, Wang H, Wang Y, Peng W, Sun N, Huang H, Zhou Y, Liu X, Lin Y, Fang J, Jing B, Pan K, Zeng Y, Zeng D, Qin X, Bai Y, Ni X. Fluoride disrupts intestinal epithelial tight junction integrity through intracellular calcium-mediated RhoA/ROCK signaling and myosin light chain kinase. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 257:114940. [PMID: 37099960 DOI: 10.1016/j.ecoenv.2023.114940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/12/2023] [Accepted: 04/18/2023] [Indexed: 05/08/2023]
Abstract
Fluoride is a common contaminant of groundwater and agricultural commodity, which poses challenges to animal and human health. A wealth of research has demonstrated its detrimental effects on intestinal mucosal integrity; however, the underlying mechanisms remain obscure. This study aimed to investigate the role of the cytoskeleton in fluoride-induced barrier dysfunction. After sodium fluoride (NaF) treatment of the cultured Caco-2 cells, both cytotoxicity and cytomorphological changes (internal vacuoles or massive ablation) were observed. NaF lowered transepithelial electrical resistance (TEER) and enhanced paracellular permeation of fluorescein isothiocyanate dextran 4 (FD-4), indicating Caco-2 monolayers hyperpermeability. In the meantime, NaF treatment altered both the expression and distribution of the tight junction protein ZO-1. Fluoride exposure increased myosin light chain II (MLC2) phosphorylation and triggered actin filament (F-actin) remodeling. While inhibition of myosin II by Blebbistatin blocked NaF-induced barrier failure and ZO-1 discontinuity, the corresponding agonist Ionomycin had effects comparable to those of fluoride, suggesting that MLC2 serves as an effector. Given the mechanisms upstream of p-MLC2 regulation, further studies demonstrated that NaF activated RhoA/ROCK signaling pathway and myosin light chain kinase (MLCK), strikingly increasing the expression of both. Pharmacological inhibitors (Rhosin, Y-27632 and ML-7) reversed NaF-induced barrier breakdown and stress fiber formation. The role of intracellular calcium ions ([Ca2+]i) in NaF effects on Rho/ROCK pathway and MLCK was investigated. We found that NaF elevated [Ca2+]i, whereas chelator BAPTA-AM attenuated increased RhoA and MLCK expression as well as ZO-1 rupture, thus, restoring barrier function. Collectively, abovementioned results suggest that NaF induces barrier impairment via Ca2+-dependent RhoA/ROCK pathway and MLCK, which in turn triggers MLC2 phosphorylation and rearrangement of ZO-1 and F-actin. These results provide potential therapeutic targets for fluoride-induced intestinal injury.
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Affiliation(s)
- Lianxin Li
- Animal Microecology Institute, College of Veterinary, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Jinge Xin
- Animal Microecology Institute, College of Veterinary, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Hesong Wang
- Baiyun Branch, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yadong Wang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Weiqi Peng
- Baiyun Branch, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ning Sun
- Animal Microecology Institute, College of Veterinary, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Haonan Huang
- Animal Microecology Institute, College of Veterinary, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yanxi Zhou
- Animal Microecology Institute, College of Veterinary, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xingmei Liu
- Animal Microecology Institute, College of Veterinary, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yu Lin
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jing Fang
- Animal Microecology Institute, College of Veterinary, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Bo Jing
- Animal Microecology Institute, College of Veterinary, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Kangcheng Pan
- Animal Microecology Institute, College of Veterinary, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yan Zeng
- Animal Microecology Institute, College of Veterinary, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Dong Zeng
- Animal Microecology Institute, College of Veterinary, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xiang Qin
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China.
| | - Yang Bai
- Baiyun Branch, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Institute of Gastroenterology of Guangdong Province, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Xueqin Ni
- Animal Microecology Institute, College of Veterinary, Sichuan Agricultural University, Chengdu, Sichuan, China.
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Yu Q, Wang D, Fan S, Tang X, He J, Peng J, Qi D. Protective effects of adipose-derived biogenic nanoparticles on the pulmonary microvascular endothelial barrier in mice with ventilator-induced lung injury via the TRPV4/ROCK1 signalling pathway. Pulm Pharmacol Ther 2022; 73-74:102123. [PMID: 35306165 DOI: 10.1016/j.pupt.2022.102123] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 03/05/2022] [Accepted: 03/09/2022] [Indexed: 12/12/2022]
Abstract
PURPOSE The "obesity paradox" phenomenon occurs in critically ill patients who receive mechanical ventilation. Our previous studies found that the adipose-derived exosomes secreted by obese mice have a protective effect on the pulmonary microvascular endothelial barrier. However, the extraction of exosomes is cumbersome, their yield is low, and their storage is difficult. After further research, we discovered a new type of adipose-derived bioactive material called: lipoaspirate nanoparticles (Lipo-NPs). METHODS Lipo-NPs were extracted and identified using a tangential flow filtration system. The Lipo-NPs were used as an intervention in ventilator-induced lung injury (VILI) models in vivo and in vitro to investigate whether they have a protective effect on lung tissue damage (haematoxylin and eosin staining), lung barrier function (lung wet/dry [W/D] weight ratio, protein concentration in bronchoalveolar lavage fluid (BALF), and Vascular endothelial (VE)-expression), as well as their related mechanisms. RESULTS In both in vivo and in vitro studies, Lipo-NPs can attenuate lung injury, reduce lung W/D ratio and protein concentration in BALF, and augment the expression of the adhesion link-protein VE-cadherin, thus playing a protective role in lung barrier function. This protective effect involves the activation of the transient receptor potential vanilloid 4 (TRPV4)/Rho-associated kinase1 (ROCK1) signalling pathway. We further verified the role of this signalling pathway via activation and inhibition of TRPV4 and ROCK1. Moreover, phosphorylation of myosin light chain 2 (MLC2) regulates F-actin and is a target of the ROCK pathway. CONCLUSION Lipo-NPs can enhance the expression of VE-cadherin by inhibiting the TRPV4/ROCK1/pMLC2 signalling pathway in the mechanical ventilation model, thereby exerting a protective effect on the VILI pulmonary microvascular endothelial barrier.
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Affiliation(s)
- Qian Yu
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Daoxin Wang
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shulei Fan
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xumao Tang
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jing He
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Junnan Peng
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Di Qi
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Yan Y, Bao G, Pei J, Cao Y, Zhang C, Zhao P, Zhang Y, Damirin A. NF-κB and EGFR participate in S1PR3-mediated human renal cell carcinomas progression. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166401. [PMID: 35346818 DOI: 10.1016/j.bbadis.2022.166401] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 03/13/2022] [Accepted: 03/20/2022] [Indexed: 11/24/2022]
Abstract
The bioactive lipid sphingosine 1-phosphate (S1P) is implicated in many pivotal processes for the physiological and pathological actions via activating five types of G-protein-coupled S1P receptors (S1PR1-5). The role of S1P in renal cell carcinoma (RCC) and its receptor subtype specific mediating mechanism are poorly studied. So we focus on the regulatory role of S1P in RCC progression and the receptor subtypes involved in S1P-induced actions, intending to further clarify a novel therapeutic target for RCC. Analysis of The Cancer Genome Atlas (TCGA) databases showed that the patients with high expression of S1PR3 had significantly worse overall than with low expression. We further demonstrated that S1P could promote proliferation, migration, and epithelial-mesenchymal transition (EMT) of renal cancer cells in vitro, and the actions were enhanced with the increase of S1PR3 expression. Meanwhile, the results in animal experiments also showed that S1PR3 could accelerate tumorigenesis and metastasis of RCC. Our study also clarified the mechanism for S1P induced cell proliferation is mediated by S1PR3/Gi/p38/Akt/p65/cyclin D1-CDK4 pathway and the main pathway for migration is S1PR3/Gi/q/ERK/p38/p65. In addition, S1PR3 was involved in epidermal growth factor (EGF)-induced actions by enhancing protein expression, not by transactivation of epidermal growth factor receptor (EGFR). These results also further supported our conclusion that the carcinogenic role of S1P/S1PR3 axis. Thus, our findings provide that S1PR3 may be a promising small molecular therapeutic target for S1PR3 expressed cancers.
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Affiliation(s)
- Yali Yan
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Gegentuya Bao
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Jingyuan Pei
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Ying Cao
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Chenyu Zhang
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Pengfei Zhao
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Yantao Zhang
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China
| | - Alatangaole Damirin
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia, China.
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Deng R, Bu Y, Li F, Wu H, Wang Y, Wei W. The interplay between fibroblast-like synovial and vascular endothelial cells leads to angiogenesis via the sphingosine-1-phosphate-induced RhoA-F-Actin and Ras-Erk1/2 pathways and the intervention of geniposide. Phytother Res 2021; 35:5305-5317. [PMID: 34327764 DOI: 10.1002/ptr.7211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 05/31/2021] [Accepted: 06/17/2021] [Indexed: 12/16/2022]
Abstract
The changes of fibroblast-like synoviocytes (FLSs) and vascular endothelial cells (VECs) biological functions are closely related to angiogenesis in rheumatoid arthritis (RA). Nevertheless, how the crosstalk between FLSs and VECs interferes with RA is far from being clarified. Herein, we studied the effect of the reciprocal interactions between FLSs and VECs on angiogenesis and mechanism of geniposide (GE). After administration of GE, improvement of synovial hyperplasia in adjuvant arthritis rats was accompanied by downregulation of SphK1 and p-Erk1/2. The dynamic interaction between FLSs and VECs triggers the release of S1P by activating p-Erk1/2 and SphK1, then activating RhoA-F-actin and Ras-Erk1/2 pathways. When exposed to the inflammatory microenvironment mediated by FLSs-VECs crosstalk, proliferation, migration, and permeability of VECs were enhanced, the angiogenic factors were imbalanced. Meanwhile, the proliferation and secretory ability of FLSs increased. Interestingly, depletion of S1P or blocking of the activation of SphK1 by GE and PF-543 prevented the changes. In conclusion, S1P released during FLSs-VECs crosstalk changed their biological functions by activating RhoA-F-actin and Ras-Erk1/2 pathways. GE acted on p-Erk1/2 and SphK1, inhibited the secretion of S1P, and blocked the interplay between FLSs and VECs. These results provide new insights into the mechanism of angiogenesis in RA.
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Affiliation(s)
- Ran Deng
- Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei, China.,College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Yanhong Bu
- Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei, China.,College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Feng Li
- Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei, China.,College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Hong Wu
- Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei, China.,College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Yan Wang
- Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei, China.,College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Wei Wei
- Anhui Medical University, Key Laboratory of Antiinflammatory and Immune Medicine (Anhui Medical University), Ministry of Education, Institute of Clinical Pharmacology, Antiinflammatory Immune Drugs Collaborative Innovation Center, Hefei, China
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Malvandi AM, Shahba S, Mohammadipour A, Rastegar-Moghaddam SH, Abudayyak M. Cell and molecular toxicity of lanthanum nanoparticles: are there possible risks to humans? Nanotoxicology 2021; 15:951-972. [PMID: 34143944 DOI: 10.1080/17435390.2021.1940340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Lanthanum nanoparticles are widely used in industry, agriculture, and biomedicine. Over 900 kg of lanthanum is annually released into the environment only in Europe, 50 times higher than the metals, mercury, and cadmium's environmental spread. Human health risk associated with long-term exposure to the abundant lanthanum nanoparticles is a concerning environmental issue. Due to lanthanum's ability to disrupt the main biological barriers and interrupt various cells' hemostasis, they seem to cause severe disruptions to various tissues. This review opens a new perspective regarding the cellular and molecular interaction of nanosized and ionic lanthanum with the possible toxicity on the nervous system and other tissues that would show lanthanum nanoparticles' potential danger to follow in toxicological science.
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Affiliation(s)
| | - Sara Shahba
- Medical Biotechnology Research Center, School of Paramedicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Abbas Mohammadipour
- Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Mahmoud Abudayyak
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Istanbul University, Istanbul, Turkey
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