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Ambattu LA, Yeo LY. Sonomechanobiology: Vibrational stimulation of cells and its therapeutic implications. BIOPHYSICS REVIEWS 2023; 4:021301. [PMID: 38504927 PMCID: PMC10903386 DOI: 10.1063/5.0127122] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 02/27/2023] [Indexed: 03/21/2024]
Abstract
All cells possess an innate ability to respond to a range of mechanical stimuli through their complex internal machinery. This comprises various mechanosensory elements that detect these mechanical cues and diverse cytoskeletal structures that transmit the force to different parts of the cell, where they are transcribed into complex transcriptomic and signaling events that determine their response and fate. In contrast to static (or steady) mechanostimuli primarily involving constant-force loading such as compression, tension, and shear (or forces applied at very low oscillatory frequencies (≤ 1 Hz) that essentially render their effects quasi-static), dynamic mechanostimuli comprising more complex vibrational forms (e.g., time-dependent, i.e., periodic, forcing) at higher frequencies are less well understood in comparison. We review the mechanotransductive processes associated with such acoustic forcing, typically at ultrasonic frequencies (> 20 kHz), and discuss the various applications that arise from the cellular responses that are generated, particularly for regenerative therapeutics, such as exosome biogenesis, stem cell differentiation, and endothelial barrier modulation. Finally, we offer perspectives on the possible existence of a universal mechanism that is common across all forms of acoustically driven mechanostimuli that underscores the central role of the cell membrane as the key effector, and calcium as the dominant second messenger, in the mechanotransduction process.
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Affiliation(s)
- Lizebona August Ambattu
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne VIC 3000, Australia
| | - Leslie Y. Yeo
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne VIC 3000, Australia
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Jiang W, Takeshita N, Maeda T, Sogi C, Oyanagi T, Kimura S, Yoshida M, Sasaki K, Ito A, Takano-Yamamoto T. Connective tissue growth factor promotes chemotaxis of preosteoblasts through integrin α5 and Ras during tensile force-induced intramembranous osteogenesis. Sci Rep 2021; 11:2368. [PMID: 33504916 PMCID: PMC7841149 DOI: 10.1038/s41598-021-82246-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 01/18/2021] [Indexed: 02/07/2023] Open
Abstract
In vertebrates, new bone formation via intramembranous osteogenesis is a critical biological event for development, remodeling, and fracture healing of bones. Chemotaxis of osteoblast lineage cells is an essential cellular process in new bone formation. Connective tissue growth factor (CTGF) is known to exert chemotactic properties on various cells; however, details of CTGF function in the chemotaxis of osteoblast lineage cells and underlying molecular biological mechanisms have not been clarified. The aim of the present study was to evaluate the chemotactic properties of CTGF and its underlying mechanisms during active bone formation through intramembranous osteogenesis. In our mouse tensile force-induced bone formation model, preosteoblasts were aggregated at the osteogenic front of calvarial bones. CTGF was expressed at the osteogenic front, and functional inhibition of CTGF using a neutralizing antibody suppressed the aggregation of preosteoblasts. In vitro experiments using μ-slide chemotaxis chambers showed that a gradient of CTGF induced chemotaxis of preosteoblastic MC3T3-E1 cells, while a neutralizing integrin α5 antibody and a Ras inhibitor inhibited the CTGF-induced chemotaxis of MC3T3-E1 cells. These findings suggest that the CTGF-integrin α5-Ras axis is an essential molecular mechanism to promote chemotaxis of preosteoblasts during new bone formation through intramembranous osteogenesis.
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Affiliation(s)
- Wei Jiang
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, 980-8575, Japan
| | - Nobuo Takeshita
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, 980-8575, Japan
| | - Toshihiro Maeda
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, 980-8575, Japan
| | - Chisumi Sogi
- Department of Pediatrics, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, 980-8574, Japan
| | - Toshihito Oyanagi
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, 980-8575, Japan
| | - Seiji Kimura
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, 980-8575, Japan
| | - Michiko Yoshida
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, 980-8575, Japan
| | - Kiyo Sasaki
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, 980-8575, Japan
| | - Arata Ito
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, 980-8575, Japan
| | - Teruko Takano-Yamamoto
- Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, 980-8575, Japan. .,Department of Biomaterials and Bioengineering, Faculty of Dental Medicine, Hokkaido University, Sapporo, Hokkaido, 060-8586, Japan.
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Kai W, Lin C, Jin Y, Ping-Lin H, Xun L, Bastian A, Arnulf S, Sha-Sha X, Xu L, Shu C. Urethral meatus stricture BOO stimulates bladder smooth muscle cell proliferation and pyroptosis via IL‑1β and the SGK1‑NFAT2 signaling pathway. Mol Med Rep 2020; 22:219-226. [PMID: 32468047 PMCID: PMC7248470 DOI: 10.3892/mmr.2020.11092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 03/25/2020] [Indexed: 11/29/2022] Open
Abstract
Bladder outlet obstruction (BOO), which is primarily caused by benign prostatic hyperplasia, is a common chronic disease. However, previous studies have most commonly investigated BOO using the acute obstruction model. In the present study, a chronic obstruction model was established to investigate the different pathological alterations in the bladder between acute and chronic obstruction. Compared with chronic obstruction, acute obstruction led to increased expression of proliferating cell nuclear antigen and interleukin-1β, which are markers of proliferation and inflammation, respectively. Furthermore, increased fibrosis in the bladder at week 2 was observed. Low pressure promoted mice bladder smooth muscle cell (MBSMC) proliferation, and pressure overload inhibited cell proliferation and increased the proportion of dead MBSMCs. Further investigation using serum/glucocorticoid regulated kinase 1 (SGK1) small interfering RNAs indicated that low pressure may promote MBSMC proliferation by upregulating SGK1 and nuclear factor of activated T-cell expression levels. Therefore, the present study suggested that acute obstruction led to faster decompensation of bladder function and chronic bladder obstruction displayed an enhanced ability to progress to BOO.
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Affiliation(s)
- Wang Kai
- Department of Urology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan 610041, P.R. China
| | - Chen Lin
- Department of Urology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan 610041, P.R. China
| | - Yang Jin
- Department of Urology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan 610041, P.R. China
| | - He Ping-Lin
- Department of Urology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan 610041, P.R. China
| | - Liu Xun
- Department of Urology, Affiliated Hospital of Chengdu University, Chengdu, Sichuan 610041, P.R. China
| | - Amend Bastian
- Department of Urology, University of Tübingen, D‑72070 Tübingen, Baden‑Württemberg, Germany
| | - Stenzl Arnulf
- Department of Urology, University of Tübingen, D‑72070 Tübingen, Baden‑Württemberg, Germany
| | - Xing Sha-Sha
- Central Laboratory, Affiliated Hospital of Chengdu University, Chengdu, Sichuan 610000, P.R. China
| | - Luo Xu
- Department of Urology, Zunyi Medical University, Guiyang, Guizhou 563000, P.R. China
| | - Cui Shu
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
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Zhang Y, Wang F, Bao L, Li J, Shi Z, Wang J. Cyclic hydrostatic compress force regulates apoptosis of meniscus fibrochondrocytes via integrin α5β1. Physiol Res 2019; 68:639-649. [DOI: 10.33549/physiolres.934088] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Meniscus is a semilunar fibrocartilaginous tissue, serving important roles in load buffering, stability, lubrication, proprioception, and nutrition of the knee joint. The degeneration and damage of meniscus has been proved to be a risk factor of knee osteoarthritis. Mechanical stimulus is a critical factor of the development, maintenance and repair of the meniscus fibrochondrocytes. However, the mechanism of the mechano-transduction process remains elusive. Here we reported that cyclic hydrostatic compress force (CHCF) treatment promotes proliferation and inhibits apoptosis of the isolated primary meniscus fibrochondrocytes (PMFs), via upregulating the expression level of integrin α5β1. Consequently, increased phosphorylated-ERK1/2 and phosphorylated-PI3K, and decreased caspase-3 were detected. These effects of CHCF treatment can be abolished by integrin α5β1 inhibitor or specific siRNA transfection. These data indicate that CHCF regulates apoptosis of PMFs via integrin α5β1-FAK-PI3K/ERK pathway, which may be an important candidate approach during meniscus degeneration.
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Affiliation(s)
| | | | | | | | | | - J. Wang
- Department of orthopedic surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
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Gao X, Wei T, Chen J, Ai J, Jin T, Cheng L, Liu Y, Xiao K, Zeng X, Wang K. Cyclic hydrostatic pressure promotes uroplakin expression in human urothelial cells through activation of ERK1/2 signaling. Biochem Biophys Res Commun 2018; 503:2499-2503. [PMID: 30208517 DOI: 10.1016/j.bbrc.2018.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 07/02/2018] [Indexed: 02/05/2023]
Abstract
OBJECTIVES To investigate the effect of cyclic hydrostatic pressure on the expression of uroplakins and the role of extracellular regulated protein kinases 1/2 (ERK1/2) in the hydrostatic pressure-induced uroplakin expression of human urothelial cells (UCs). METHODS Human UCs were seeded into a cell culture flask and subjected to cyclic hydrodynamic pressures for 24 h. Pressure parameters were set as follows: static, 100 cm H2O, 200 cm H2O and 300 cm H2O pressure. Real-time polymerase chain reaction (RT-PCR) and western blot were used to detect the expression of uroplakins. The role of the ERK1/2 was investigated using ERK1/2 inhibitor. RESULTS Compared with the 0 cm H2O control group, 200 cm H2O hydrostatic pressure significantly increased the expression of uroplakins, however, 100 cm and 300 cm pressures could not promote uroplakin expression. Hence, ERK1/2 expression was also detected under 200 cm H2O hydrostatic pressure. Western blot showed that 200 cm H2O pressure promoted the expression of ERK1/2. ERK1/2 inhibitor decreased the pressure-induced ERK1/2 activivation and uroplakin expression. CONCLUSIONS Cyclic hydrostatic pressure increases the expression of uroplakins via activating ERK1/2 signaling pathway in human UCs, and 200 cm H2O pressure may be an optimal stress parameter to promote the uroplakin expression.
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Affiliation(s)
- Xiaoshuai Gao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Tangqiang Wei
- Department of Urology, Nanchong Central Hospital, The Second School of Clinical Medicine, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, PR China
| | - Jixiang Chen
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Jianzhong Ai
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Tao Jin
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Liang Cheng
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Yu Liu
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Kaiwen Xiao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Xiongfeng Zeng
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Kunjie Wang
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, PR China.
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Gao X, Wei T, Liao B, Ai J, Zhou L, Gong L, Chen Y, He Q, Cheng L, Wang K. Physiological stretch induced proliferation of human urothelial cells via integrin α6-FAK signaling pathway. Neurourol Urodyn 2018; 37:2114-2120. [PMID: 29953644 DOI: 10.1002/nau.23572] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 02/27/2018] [Indexed: 02/05/2023]
Abstract
AIMS To test a kind of stretch pattern which is the optimum stress parameter to promote human urothelial cells (HUCs) proliferation, and to investigate the roles of integrin subunits and their pathway in the HUCs proliferation induced by physiological stretch. METHODS HUCs were seeded on silicone membrane, and subjected to four kinds of stretch (0,5%,10%,15% elongation) for 24 h, as controlled by a BioDynamic® bioreactor. Cell proliferation, viability and cycle distribution were examined using Cell Counting Kit-8 and flow cytometry, respectively. The gene and protein expression of integrin subunits and focal adhesion kinase (FAK) in each group were assessed by Real-time PCR(RT-PCR) and western blot, respectively. Small interfering RNAs (siRNA) were applied to knockdown integrin α6 and FAK expression in HUCs, and FAK inhibitor was used to validate the role of α6 and FAK in cell proliferation under physiological stretch. RESULTS The proliferation of HUCs were highest in the 5% elongation group compared to static control, 10% and 15% elongation group. RT-PCR and western blot showed that 5% cyclic stretch significantly promoted the expression of integrin α6 and FAK. The stretch-induced cell proliferation and FAK expression was inhibited by siRNA of integrin α6. Further study with FAK inhibitor revealed that elongation promoted proliferation though integrin α6 and FAK signaling pathway. CONCLUSIONS Physiological stretch induced HUCs proliferation via integrin α6-FAK signaling pathway, and 5% elongation may be the optimal stress parameter to promote the cell proliferation.
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Affiliation(s)
- Xiaoshuai Gao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Tangqiang Wei
- Department of Urology, Nanchong Central Hospital, The Second School of Clinical Medicine, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, P.R. China
| | - Banghua Liao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Jianzhong Ai
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Liang Zhou
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Lina Gong
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Yuntian Chen
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Qing He
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Liang Cheng
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Kunjie Wang
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
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