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Khalifa MO, Yan C, Chai Y, Ito K, Zhang SH, Li TS. Hydrostatic pressure mediates epithelial-mesenchymal transition of cholangiocytes through RhoA/ROCK and TGF-β/smad pathways. PLoS One 2024; 19:e0300548. [PMID: 38578740 PMCID: PMC10997127 DOI: 10.1371/journal.pone.0300548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 02/28/2024] [Indexed: 04/07/2024] Open
Abstract
Biomechanical cue within the tissue microenvironment is known to play a critical role in regulating cell behaviors and maintaining tissue homeostasis. As hydrostatic pressure often increases in biliary system under pathological states, we investigated the effect of the moderate elevation of the hydrostatic pressure on biliary epithelial cells, especially on the epithelial-mesenchymal transition (EMT). Human intrahepatic biliary epithelial cells were loaded to hydrostatic pressure using a commercial device. We found that loading the cells to 50 mmHg hydrostatic pressure induced obvious morphological changes and significantly upregulated vimentin, ZEB1, and pSmad2/3, fibronectin, and collagen 1α. All changes induced by hydrostatic pressure loading were effectively mitigated by either ROCK inhibitor (Y-27632) or ALK5 inhibitor (SB-431542). Our in vitro experimental data suggests that hydrostatic pressure loading induces EMT of cholangiocytes through RhoA/ROCK and TGF-β/Smad pathways. Elevated hydrostatic pressure in biliary duct system under pathological states may promote the biliary epithelial cells shifting to profibrotic and mesenchymal characteristics.
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Affiliation(s)
- Mahmoud Osman Khalifa
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
- Department of Molecular Bone Biology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- Department of Anatomy and Embryology, Veterinary Medicine, Aswan University, Aswan, Egypt
| | - Chen Yan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Yong Chai
- Department of General Surgery, Jiangxi Provincial Children’s Hospital, Nanchang, Jiangxi, China
| | - Kosei Ito
- Department of Molecular Bone Biology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Shou-Hua Zhang
- Department of General Surgery, Jiangxi Provincial Children’s Hospital, Nanchang, Jiangxi, China
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
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Emeish WFA, Abd-ElHafeez HH, Alghamdi AAA, Ahmed M, Khalifa MO, El-Mansi AA, Abou-Elhamd AS, Khormi MM, Alkashif K, Soliman SA. Morphological changes in intraepithelial and stromal telocytes in Cyprinus carpio in response to salinity stress. Sci Rep 2023; 13:19987. [PMID: 37968439 PMCID: PMC10651833 DOI: 10.1038/s41598-023-43279-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 09/21/2023] [Indexed: 11/17/2023] Open
Abstract
Telocytes establish connections and communicate with various types of cells and structures. Few experimental studies have been performed on telocytes. In this study, we investigated the effect of salinity stress on telocytes in relation to osmoregulatory, immune, and stem cells. After exposing the common carp to 0.2 (control), 6, 10, or 14 ppt salinity, we extracted and fixed gill samples in glutaraldehyde, processed and embedded the samples in resin, and prepared semi-thin and ultrathin sections. Two types of telocytes were identified: intraepithelial and stromal telocytes. Intraepithelial telocytes were found to form part of the cellular lining of the lymphatic space and shed secretory vesicles into this space. Stromal telocytes were observed to shed their secretory vesicles into the secondary circulatory vessels. Both intraepithelial and stromal telocytes were enlarged and exhibited increased secretory activities as salinity increased. They exerted their effects via direct contact and paracrine signaling. The following changes were observed in samples from fish exposed to high salinity levels: chloride cells underwent hypertrophy, and their mitochondria became cigar-shaped; pavement cells were enlarged, and their micro-ridges became thin and elongated; stromal telocytes established contact with stem cells and skeletal myoblasts; skeletal muscle cells underwent hypertrophy; and macrophages and rodlet cells increased in number. In conclusion, our findings indicate that intraepithelial and stromal telocytes respond to salinity stress by activating cellular signaling and that they play major roles in osmoregulation, immunity, and regeneration.
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Affiliation(s)
- Walaa F A Emeish
- Department of Fish Diseases, Faculty of Veterinary Medicine, South Valley University, Qena, 83523, Egypt
| | - Hanan H Abd-ElHafeez
- Department of Cell and Tissues, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt.
| | | | - Madeha Ahmed
- Department of Histology, Faculty of Veterinary Medicine, Sohag University, Sohagt, 82524, Egypt
| | - Mahmoud Osman Khalifa
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Aswan University, Aswan, Egypt
- Department of Molecular Bone Biology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Ahmed A El-Mansi
- Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Alaa S Abou-Elhamd
- Department of Cell and Tissues, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt
- Department of Respiratory Therapy, Faculty of Applied Medical Sciences, Jazan University, Jazan, Saudi Arabia
| | - Mohsen M Khormi
- Department of Biology, College of Science, Jazan University, Jazan, Saudi Arabia
| | - Khalid Alkashif
- Physiology Department, faculty of Medicine, Merit University, Sohage, Egypt
| | - Soha A Soliman
- Department of Histology, Faculty of Veterinary Medicine, South Valley University, Qena, 83523, Egypt.
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Khalifa MO, Moriwaki T, Zhang S, Zhou W, Ito K, Li TS. Negative pressure induces dedifferentiation of hepatocytes via RhoA/ROCK pathway. Biochem Biophys Res Commun 2023; 667:104-110. [PMID: 37210870 DOI: 10.1016/j.bbrc.2023.05.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/08/2023] [Accepted: 05/13/2023] [Indexed: 05/23/2023]
Abstract
Biomechanical forces are known to regulate the biological behaviors of cells. Although negative pressure has been used for wound healing, it is still unknown about its role in regulating cell plasticity. We investigated whether negative pressure could induce the dedifferentiation of hepatocytes. Using a commercial device, we found that the exposure of primary human hepatocytes to -50 mmHg quickly induced the formation of stress fibers and obviously changed cell morphology in 72 h. Moreover, the exposure of hepatocytes to -50 mmHg significantly upregulated RhoA, ROCK1, and ROCK2 in 1-6 h, and dramatically enhanced the expression of marker molecules on "stemness", such as OCT4, SOX2, KLF4, MYC, NANOG, and CD133 in 6-72 h. However, all these changes in hepatocytes induced by -50 mmHg stimulation were almost abrogated by ROCK inhibitor Y27623. Our data suggest that an appropriate force of negative pressure stimulation can effectively induce the dedifferentiation of hepatocytes via RhoA/ROCK pathway activation.
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Affiliation(s)
- Mahmoud Osman Khalifa
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan; Department of Anatomy and Embryology, Veterinary Medicine, Aswan University, Aswan, Egypt; Department of Molecular Bone Biology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Takahito Moriwaki
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Shouhua Zhang
- Department of General Surgery, Jiangxi Provincial Children's Hospital, Nanchang, Jiangxi, China
| | - Wei Zhou
- Department of Gastrointestinal Surgery, Jiangxi Provincial Cancer Hospital Nanchang, Jiangxi Province, China
| | - Kosei Ito
- Department of Molecular Bone Biology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
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Huang Z, Khalifa MO, Li P, Huang Y, Gu W, Li TS. Angiotensin receptor blocker alleviates liver fibrosis by altering the mechanotransduction properties of hepatic stellate cells. Am J Physiol Gastrointest Liver Physiol 2022; 322:G446-G456. [PMID: 35138187 DOI: 10.1152/ajpgi.00238.2021] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Angiotensin receptor blockers have been reported to be beneficial to liver fibrosis, but the relevant molecular and cellular mechanisms remain unclear. We herein investigated whether low-dose angiotensin receptor blocker alleviated liver fibrosis through mechanotransduction regulation. Hydrostatic pressure-induced liver fibrosis model was established in mice by ligating partially the inferior vena cava, and then randomly received a very low dose of losartan (0.5 mg/kg) or placebo treatment for 8 weeks. We found that losartan administration interfered the expression of several mechanotransductive molecules, and effectively alleviated liver fibrosis. Using a commercial device, we further confirmed that ex vivo loading of hepatic stellate cells to 50 mmHg hydrostatic pressure for 24 h significantly upregulated RhoA, ROCK, AT1R, and p-MLC2, which was effectively attenuated by adding 10 nM losartan in medium. Our in vivo and ex vivo experimental data suggest that low-dose angiotensin receptor blockers may alleviate hydrostatic pressure-induced liver fibrosis by altering the mechanotransduction properties of hepatic stellate cells.NEW & NOTEWORTHY Our ex vivo and in vivo experiments clearly indicated that low-dose losartan alleviated liver fibrosis, likely by modulating the mechanotransduction properties of HSCs. Uncovering the biomechanical signaling pathway of ARB treatment on liver fibrosis will be helpful to develop novel molecular targeting therapy for liver diseases.
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Affiliation(s)
- Zisheng Huang
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mahmoud Osman Khalifa
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Peilin Li
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou, Guangdong, China
| | - Yu Huang
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou, Guangdong, China
| | - Weili Gu
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou, Guangdong, China
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Huang Z, Khalifa MO, Gu W, Li TS. Hydrostatic pressure induces pro-fibrotic properties in hepatic stellate cells via the RhoA/ROCK signaling pathway. FEBS Open Bio 2022; 12:1230-1240. [PMID: 35357779 PMCID: PMC9157409 DOI: 10.1002/2211-5463.13405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 02/28/2022] [Accepted: 03/29/2022] [Indexed: 11/11/2022] Open
Abstract
Elevated interstitial fluid hydrostatic pressure is commonly observed in diseased livers. We herein examined the hypothesis that hydrostatic pressure induces hepatic stellate cells to acquire pro-fibrotic properties under pathological conditions. Human hepatic stellate cells were exposed to 50 mmHg pressure for 24 hours. Although we observed few changes of cell growth and morphology, PCR array data on the expression of fibrosis-associated genes suggested the acquisition of pro-fibrotic properties. The exposure of hepatic stellate cells to 50 mmHg pressure for 24 hours also significantly enhanced the expression of RhoA, ROCK1, α-SMA, TGF-β1 , p-MLC and p-Smad2, and this was effectively attenuated by ROCK inhibitor Y-27632. Our ex vivo experimental data suggests that elevated interstitial fluid hydrostatic pressure under pathological conditions may promote liver fibrosis by inducing acquisition of pro-fibrotic properties of hepatic stellate cells through the RhoA/ROCK signaling pathway.
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Affiliation(s)
- Zisheng Huang
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Mahmoud Osman Khalifa
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Weili Gu
- Department of Hepatopancreatobiliary Surgery, Guangzhou First People's Hospital, Guangzhou, 510180, China
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, 852-8523, Japan.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
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Khalifa MO, Abd-Elkareem M, Gaber W, Li TS, Saleh AM. Developmental morphological analyses on the preglottal salivary gland in Japanese quails (Coturnix japonica). Microsc Res Tech 2021; 85:156-168. [PMID: 34343385 DOI: 10.1002/jemt.23892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 05/20/2021] [Accepted: 07/17/2021] [Indexed: 11/12/2022]
Abstract
To understand the development of the mucous preglottal salivary gland in Coturnix japonica (Japanese quail), morphological and histochemical studies were performed on 20 healthy Japanese quail embryos (aging from 10th to 17th incubation days) and 25 healthy quail chicks (aging from 0th to 60th days). The primordia of preglottal salivary gland were observed as an epithelial bud at the early embryonic stage, which then elongated and differentiated into secretory units by the end of this stage. In Japanese quails, the preglottal salivary gland was a mucous polystomatic tubuloalveolar unpaired gland composed of two lateral portions and a middle one embedded into the submucosa of the lingual root. The gland openings accompanied taste pore (8.17 μm) of taste buds associated salivary glands type; some skeletal muscle fibers embedded among secretory lobules extended from muscle cricohyoideus at 14th day-old quail chick. Also, both herbts corpuscles and secretory motor plexus could be detected among secretory lobules. Based on our investigations, the development of the preglottal salivary gland could clearly be distinguished in the embryonic stage into pre bud and bud stages at 10th day old, cord and branching stages ended by cavitation at 11th day old, canalization stage at 13th day old, lobulation and secretory stages by the 17th day old. The secretory materials showed different histochemical reactions ended with highly alcinophilic mucous indicated highly sialomucin (acidic) content. Myoepithelial cells could be demonstrated at a 17-day old quail embryo and thereafter surrounded the secretory endpieces of the preglottal salivary gland.
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Affiliation(s)
- Mahmoud Osman Khalifa
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Aswan University, Aswan, Egypt.,Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mahmoud Abd-Elkareem
- Department of Anatomy, Histology, and Embryology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Wafaa Gaber
- Department of Anatomy, Histology, and Embryology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Abdelmohaimen Mostafa Saleh
- Department of Anatomy, Histology, and Embryology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
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Khalifa MO, Abd-elkareem M, Gaber W, Li T, Saleh AM. Developmental Morphological Analyses on the Preglottal Salivary Gland in Japanese Quails (Coturnix Japonica).. [DOI: 10.21203/rs.3.rs-255124/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Abstract
To understand the development of the mucous preglottal salivary gland in Coturnix japonica (Japanese quail), morphological and histochemical studies were performed on 20 healthy Japanese quail embryos (aging from 10 th to 17 th incubation days) and 25 healthy quail chicks (aging from 0 th to 60 th days). The primordia of preglottal salivary gland was observed as an epithelial bud at the early embryonic stage, which then elongated and differentiated into secretory units by the end of this stage. In Japanese quails, the preglottal salivary gland was a mucous polystomatic tubulo-alveolar unpaired gland composed of two lateral portions and a middle one embedded into submucosa of the lingual root. The gland openings accompanied taste pore (8.17 μm) of taste buds associated salivary glands type; some skeletal muscle fibers embedded among secretory lobules extended from muscle cricohyoideus at 14 th day old quail chick. Also, both herbts corpuscles and secretory motor plexus could be detected among secretory lobules. Based on our investigations, the development of preglottal salivary gland could clearly be distinguished in the embryonic stage into prebud and bud stages at 10 th day old, cord and branching stages ended by cavitation at 11 th day old, canalization stage at 13 th day old, lobulation and secretory stages by the 17 th day old. This mucous secretion showed different histochemical reactions ended with highly alcinophilic mucous indicated highly sialomucin (acidic) content. Myoepithelial cells could be demonstrated at 17-day old quail embryo and there after, surrounded the secretory endpieces of the preglottal salivary gland.
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