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Milošević N, Rütter M, David A. Endothelial Cell Adhesion Molecules- (un)Attainable Targets for Nanomedicines. FRONTIERS IN MEDICAL TECHNOLOGY 2022; 4:846065. [PMID: 35463298 PMCID: PMC9021548 DOI: 10.3389/fmedt.2022.846065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 02/15/2022] [Indexed: 01/21/2023] Open
Abstract
Endothelial cell adhesion molecules have long been proposed as promising targets in many pathologies. Despite promising preclinical data, several efforts to develop small molecule inhibitors or monoclonal antibodies (mAbs) against cell adhesion molecules (CAMs) ended in clinical-stage failure. In parallel, many well-validated approaches for targeting CAMs with nanomedicine (NM) were reported over the years. A wide range of potential applications has been demonstrated in various preclinical studies, from drug delivery to the tumor vasculature, imaging of the inflamed endothelium, or blocking immune cells infiltration. However, no NM drug candidate emerged further into clinical development. In this review, we will summarize the most advanced examples of CAM-targeted NMs and juxtapose them with known traditional drugs against CAMs, in an attempt to identify important translational hurdles. Most importantly, we will summarize the proposed strategies to enhance endothelial CAM targeting by NMs, in an attempt to offer a catalog of tools for further development.
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Wang X, Lu Y, Qin Z, Guo H, Chen W, Ding T, Tang J, Zhang H. Stereotactic Body Radiotherapy and Conventional Radiotherapy Induce Cytoskeleton Extension and Enlargement of Cell Morphology in Non-Small Cell Lung Cancer. Dose Response 2022; 19:15593258211064499. [PMID: 34987340 PMCID: PMC8725237 DOI: 10.1177/15593258211064499] [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] [Indexed: 11/15/2022]
Abstract
Stereotactic body radiotherapy (SBRT) is now widely used in cancer therapy. However, the biological effects of SBRT compared with conventional radiotherapy (CRT) are not clear. The cytoskeleton plays an important role in many biological processes and cellular life activities. The effects of SBRT or CRT on the morphology and cytoskeletal structure of non-small cell lung cancer (NSCLC) cells remain unknown. Based on the biologically equivalent dose (BED) formula, we designed SBRT and CRT fractionation regimens with the same BED. The morphology was captured during radiation, and rhodamine-phalloidin immunofluorescence was used to study the cytoskeleton. A lactate dehydrogenase assay kit was used to determine the cell membrane permeability, and western blot was used to detect the cytoskeleton protein expression levels. The morphology and cytoskeleton expanded after SBRT or CRT, with an increase in cell membrane permeability and stable cytoskeleton protein levels. Besides, different dose of SBRT (10,20,30 Gy) induce similar morphology and cytoskeleton enlargement. Our findings indicate that SBRT and CRT can induce cytoskeleton reorganization and the enlargement of cell morphology (at different rates) in NSCLC. The morphology and cytoskeleton enlargement after SBRT are dose independence.
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Affiliation(s)
- Xiao Wang
- Oncology Center, Department of Medical Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Yanwei Lu
- Oncology Center, Department of Radiation Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Zhiquan Qin
- Oncology Center, Department of Medical Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Haiwei Guo
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Wenjuan Chen
- Department of Psychiatry, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ting Ding
- Department of Endocrinology, Yiyang Central Hospital, Yiyang, China
| | - Jianming Tang
- Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Haibo Zhang
- Oncology Center, Department of Radiation Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
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Cytoskeleton Response to Ionizing Radiation: A Brief Review on Adhesion and Migration Effects. Biomedicines 2021; 9:biomedicines9091102. [PMID: 34572287 PMCID: PMC8465203 DOI: 10.3390/biomedicines9091102] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/18/2021] [Accepted: 08/24/2021] [Indexed: 12/27/2022] Open
Abstract
The cytoskeleton is involved in several biological processes, including adhesion, motility, and intracellular transport. Alterations in the cytoskeletal components (actin filaments, intermediate filaments, and microtubules) are strictly correlated to several diseases, such as cancer. Furthermore, alterations in the cytoskeletal structure can lead to anomalies in cells’ properties and increase their invasiveness. This review aims to analyse several studies which have examined the alteration of the cell cytoskeleton induced by ionizing radiations. In particular, the radiation effects on the actin cytoskeleton, cell adhesion, and migration have been considered to gain a deeper knowledge of the biophysical properties of the cell. In fact, the results found in the analysed works can not only aid in developing new diagnostic tools but also improve the current cancer treatments.
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Merrick M, Mimlitz MJ, Weeder C, Akhter H, Bray A, Walther A, Nwakama C, Bamesberger J, Djam H, Abid K, Ekpenyong A. In vitro radiotherapy and chemotherapy alter migration of brain cancer cells before cell death. Biochem Biophys Rep 2021; 27:101071. [PMID: 34286111 PMCID: PMC8280507 DOI: 10.1016/j.bbrep.2021.101071] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 06/28/2021] [Accepted: 06/29/2021] [Indexed: 11/24/2022] Open
Abstract
Although radiotherapy and most cancer drugs target the proliferation of cancer cells, it is metastasis, the complex process by which cancer cells spread from the primary tumor to other tissues and organs of the body where they form new tumors, that leads to over 90% of all cancer deaths. Thus, there is an urgent need for anti-metastasis strategies alongside chemotherapy and radiotherapy. An important step in the metastatic cascade is migration. It is the first step in metastasis via local invasion. Here we address the question whether ionizing radiation and/or chemotherapy might inadvertently promote metastasis and/or invasiveness by enhancing cell migration. We used a standard laboratory irradiator, Faxitron CellRad, to irradiate both non-cancer (HCN2 neurons) and cancer cells (T98G glioblastoma) with 2 Gy, 10 Gy and 20 Gy of X-rays. Paclitaxel (5 μM) was used for chemotherapy. We then measured the attachment and migration of the cells using an electric cell substrate impedance sensing device. Both the irradiated HCN2 cells and T98G cells showed significantly (p < 0.01) enhanced migration compared to non-irradiated cells, within the first 20–40 h following irradiation with 20 Gy. Our results suggest that cell migration should be a therapeutic target in anti-metastasis/anti-invasion strategies for improved radiotherapy and chemotherapy outcomes.
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Affiliation(s)
- Michael Merrick
- Department of Physics, Creighton University, Omaha, NE, 68178, USA
| | | | - Catherine Weeder
- Department of Biology, Creighton University, Omaha, NE, 68178, USA
| | - Haris Akhter
- Department of Biology, Creighton University, Omaha, NE, 68178, USA
| | - Allie Bray
- Department of Mathematics, Creighton University, Omaha, NE, 68178, USA
| | - Andrew Walther
- Department of Physics, Creighton University, Omaha, NE, 68178, USA
| | - Chisom Nwakama
- Department of Chemistry, Creighton University, Omaha, NE, 68178, USA
| | - Joe Bamesberger
- HCB Pre-health Science, Creighton University, Omaha, NE, 68178, USA
| | - Honour Djam
- Department of Physics, Creighton University, Omaha, NE, 68178, USA
| | - Kaamil Abid
- Department of Biology, Creighton University, Omaha, NE, 68178, USA
| | - Andrew Ekpenyong
- Department of Physics, Creighton University, Omaha, NE, 68178, USA
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Mohammadkarim A, Mokhtari-Dizaji M, Kazemian A, Saberi H, Yazdi NA, Esfehani M. Assessing the short-term effects of radiotherapy on the shear modulus of the common carotid artery as a new biomarker of radiation-induced atherosclerosis. Ultrasonography 2021; 41:114-123. [PMID: 34261210 PMCID: PMC8696146 DOI: 10.14366/usg.21032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 04/26/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose The purpose of this study was to investigate the incidence of short-term atherosclerosis in the common carotid arteries following radiotherapy. Methods The mean radiation dose to the arteries was 49.30±15.83 Gy. A computational ultrasound method was introduced to investigate the elastic modulus. Ultrasonography was performed 2-3 cm inferior to the bifurcation region before and after radiotherapy, and sequential images were extracted from a video of each artery. Instantaneous movement of the arterial wall in the radial and longitudinal directions was extracted by implementing the maximum gradient and block matching algorithms, respectively. Results There was a significant change in systolic blood pressure after radiotherapy (P=0.008). Irradiated arteries had significantly smaller systolic and end-diastolic diameters than non-irradiated arteries (P<0.001). The shear modulus was significantly different between irradiated and non-irradiated arteries (3.10±2.03 kPa vs. 1.38±0.98 kPa, P<0.001). The shear and Young moduli of radiation-induced arteries were 2.25±1.50 and 1.57±0.59 times higher than those of the pre-irradiation arteries. Conclusion The arterial shear modulus can be considered as a new biomarker of radiation-induced atherosclerosis in the common carotid artery.
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Affiliation(s)
- Alireza Mohammadkarim
- Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Manijhe Mokhtari-Dizaji
- Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ali Kazemian
- Radiation Oncology Research Center, Cancer Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hazhir Saberi
- Department of Radiology, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Niloofar Ayoobi Yazdi
- Department of Radiology, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahbod Esfehani
- Department of Radiation Oncology, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran
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Vounotrypidis E, Hillenmayer A, Wertheimer CM, Athanasiou A, Siedlecki J, Orth M, Ohlmann A, Priglinger SG, Wolf A. In vitro evaluation of simulated stereotactic radiotherapy for wet age-related macular degeneration on three different cell lines. Sci Rep 2021; 11:8068. [PMID: 33850228 PMCID: PMC8044105 DOI: 10.1038/s41598-021-87466-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 03/24/2021] [Indexed: 12/24/2022] Open
Abstract
Low energy stereotactic radiotherapy has been proposed for the treatment of neovascular age related macular degeneration. We investigated the in vitro effect of the radiotherapy on pericytes, retinal pigment epithelium and endothelial cells. Primary human retinal pigment epithelium cells, human umbilical vein endothelial cells and human pericytes from Placenta were cultivated. In a pairwise protocol, one plate was irradiated at a dose of 16 Gy, while the second plate served as a non-irradiated control. Thereafter, cells were cultivated either in serum-free (non-permissive) or serum-stimulated (permissive) conditions. A life/dead assay, an XTT and a BrdU assay were performed up to 7 days after irradiation. No cell death occurred at any timepoint in any cell line after treatment nor in the control. Compared to the unirradiated controls, cell viability and metabolic activity were significantly reduced in irradiated cells in the XTT assay, except for non-permissive RPE cells. In the BrdU assay, proliferation was inhibited. While no cell death was detected in vitro, viability and proliferative capacity of all cell lines were significantly reduced. Therefore, it seems that low energy stereotactic radiotherapy inhibits angiogenesis without a direct induction of apoptosis but influencing microvascular function and stability.
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Affiliation(s)
- Efstathios Vounotrypidis
- Department of Ophthalmology, University Hospital Ulm, Prittwitzstrasse 43, 89075, Ulm, Germany.
- Department of Ophthalmology, Ludwig-Maximilians-University Munich, Munich, Germany.
| | - Anna Hillenmayer
- Department of Ophthalmology, University Hospital Ulm, Prittwitzstrasse 43, 89075, Ulm, Germany
- Department of Ophthalmology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Christian M Wertheimer
- Department of Ophthalmology, University Hospital Ulm, Prittwitzstrasse 43, 89075, Ulm, Germany
- Department of Ophthalmology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Alexis Athanasiou
- Department of Ophthalmology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Jakob Siedlecki
- Department of Ophthalmology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Michael Orth
- Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | - Andreas Ohlmann
- Department of Ophthalmology, Ludwig-Maximilians-University Munich, Munich, Germany
| | | | - Armin Wolf
- Department of Ophthalmology, University Hospital Ulm, Prittwitzstrasse 43, 89075, Ulm, Germany
- Department of Ophthalmology, Ludwig-Maximilians-University Munich, Munich, Germany
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Huang Q, Zhou Z, Yan F, Dong Q, Wang L, Sha W, Xu Q, Zhu X, Zhao L. Low-dose X-ray irradiation induces morphological changes and cytoskeleton reorganization in osteoblasts. Exp Ther Med 2020; 20:283. [PMID: 33209127 PMCID: PMC7668146 DOI: 10.3892/etm.2020.9413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 05/15/2020] [Indexed: 01/22/2023] Open
Abstract
Recently, research into the biological effects of low dose X-ray irradiation (LDI) has been a focus of interest. Numerous studies have suggested that cells exhibit different responses and biological effects to LDI compared with high doses. Preliminary studies have demonstrated that LDI may promote osteoblast proliferation and differentiation in vitro, thereby accelerating fracture healing in mice. However, the exact mechanism of action by which LDI exerts its effects remains unclear. Previous studies using microarrays revealed that LDI promoted the expression of genes associated with the cytoskeleton. In the current study, the effect of X-ray irradiation (0.5 and 5 Gy) on the morphology of MC3T3-E1 cells and fiber actin organization was investigated. Osteoblasts were treated with 0, 0.5 and 5 Gy X- ray irradiation, following which changes in the actin cytoskeleton were observed. The levels of RhoA, ROCK, cofilin and phosphorylated-cofilin were measured by reverse transcription-quantitative PCR and western blotting. Subsequently, osteoblasts were pretreated with ROCK specific inhibitor Y27632 to observe the changes of actin skeleton after X-ray irradiation. The results demonstrated that the cellular morphological changes were closely associated with radiation dose and exposure time. Furthermore, the gene expression levels of small GTPase RhoA and its effectors were increased following LDI. These results indicated that the RhoA/Rho-associated kinase pathway may serve a significant role in regulating LDI-induced osteoblast cytoskeleton reorganization.
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Affiliation(s)
- Qun Huang
- Department of Orthopedics, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu 215600, P.R. China
| | - Zhiping Zhou
- Department of Orthopedics, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu 215600, P.R. China
| | - Fei Yan
- Department of Orthopedics, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu 215600, P.R. China
| | - Qirong Dong
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215004, P.R. China
| | - Liming Wang
- Department of Orthopedics, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu 215600, P.R. China
| | - Weiping Sha
- Department of Orthopedics, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu 215600, P.R. China
| | - Qin Xu
- Department of Orthopedics, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu 215600, P.R. China
| | - Xianwei Zhu
- Department of Orthopedics, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu 215600, P.R. China
| | - Lei Zhao
- Department of Orthopedics, The First People's Hospital of Zhangjiagang City, Suzhou, Jiangsu 215600, P.R. China
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Li Y, Li Y, Zhang Q, Wang L, Guo M, Wu X, Guo Y, Chen J, Chen W. Mechanical Properties of Chondrocytes Estimated from Different Models of Micropipette Aspiration. Biophys J 2019; 116:2181-2194. [PMID: 31103225 DOI: 10.1016/j.bpj.2019.04.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 03/29/2019] [Accepted: 04/18/2019] [Indexed: 01/11/2023] Open
Abstract
In this study, two viscoelastic creep expressions for the aspirated length of individual solid-like cells undergoing micropipette aspiration (MPA) were derived based on our previous studies wherein the cell size relative to the micropipette and the cell compressibility were taken into account. Next, three mechanical models of MPA, the half-space model (HSM), incompressible sphere model (ICSM), and compressible sphere model (CSM), were employed to fit the MPA data of chondrocytes. The results indicated that the elastic moduli and viscoelastic parameters of chondrocytes for the ICSM and CSM exhibited significantly higher values than those from the HSM (p < 0.001) because of the considerations of the geometric parameter (ξ) and the compressibility of the cell (ν). For the normal chondrocytes, the elastic moduli obtained from the ICSM and CSM (ν = 0.3) were 47.4 and 78.9% higher than those from the HSM. In the viscoelasticity, the parameters k1, k2, and μ for the ICSM were respectively increased by 37.8, 37.9, and 39.0% compared to those from the HSM, whereas for the CSM (ν = 0.3), the above parameters were 135, 314, and 257% higher compared to those from the HSM. And with the increase of ξ and ν, the above mechanical parameters decreased. Furthermore, the thresholds of ξ varying with ν were obtained for the given values of relative errors caused by the HSM in the elastic and viscoelastic parameters. The above findings obviously indicated that the geometric parameter of MPA and the Poisson's ratio of a cell have marked influences on the determination of cellular mechanical parameters by MPA and thus should be considered in the pursuit of more accurate investigations of the mechanical properties of cells.
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Affiliation(s)
- Yongsheng Li
- Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Yueqin Li
- Shanxi Dayi Hospital, Taiyuan, China; Shanxi Academy of Medical Sciences, Taiyuan, China
| | - Quanyou Zhang
- Institute of Biomedical Engineering, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Lili Wang
- Institute of Biomedical Engineering, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Meiqing Guo
- Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Xiaogang Wu
- Institute of Biomedical Engineering, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Yuan Guo
- Institute of Biomedical Engineering, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China
| | - Jing Chen
- Institute of Biomedical Engineering, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China.
| | - Weiyi Chen
- Institute of Biomedical Engineering, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, China.
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Peng S, Yang B, Duan MY, Liu ZW, Wang WF, Zhang XZ, Ren BX, Tang FR. The Disparity of Impairment of Neurogenesis and Cognition After Acute or Fractionated Radiation Exposure in Adolescent BALB/c Mice. Dose Response 2019; 17:1559325818822574. [PMID: 30670940 PMCID: PMC6327339 DOI: 10.1177/1559325818822574] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 09/20/2018] [Accepted: 09/25/2018] [Indexed: 12/31/2022] Open
Abstract
The effect of acute X-ray irradiation with 2 Gy or fractionated exposure with 0.2 Gy continuously for 10 days (0.2 Gy × 10 = 2 Gy) was evaluated in the postnatal day 21 (P21) BALB/c mouse model. Both acute and fractionated irradiation induced impairment of cell proliferation and neurogenesis in the subgranular zone of the dentate gyrus labeled by Ki67 and doublecortin, respectively. Parvalbumin immunopositive interneurons in the subgranular zone were also reduced significantly. However, the 2 patterns of irradiation did not affect animal weight gain when measured at ages of P90 and P180 or 69 and 159 days after irradiation. Behavioral tests indicated that neither acute nor fractionated irradiation with a total dose of 2 Gy induced deficits in the contextual fear or spatial memory and memory for novel object recognition. Animal motor activity was also not affected in the open-field test. The disparity of the impairment of neurogenesis and unaffected cognition suggests that the severity of impairment of neurogenesis induced by acute or fractionated irradiation with a total dose of 2 Gy at P21 may not be worse enough to induce the deficit of cognition.
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Affiliation(s)
- Shuang Peng
- Health Center of Yangtze University, Jingzhou, Hubei, China
| | - Bo Yang
- Department of Medical Imaging Center, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, People's Republic of China
| | - Meng Yun Duan
- Health Center of Yangtze University, Jingzhou, Hubei, China
| | - Zi Wei Liu
- Health Center of Yangtze University, Jingzhou, Hubei, China
| | - Wei Feng Wang
- Health Center of Yangtze University, Jingzhou, Hubei, China
| | - Xiang Zhi Zhang
- Affiliated Hospital of Yangtze University, Jingzhou, Hubei, People's Republic of China
| | - Bo Xu Ren
- Health Center of Yangtze University, Jingzhou, Hubei, China
| | - Feng Ru Tang
- Radiation Physiology Laboratory, Singapore Nuclear Research and Safety Initiative, National University of Singapore, Singapore
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Parandakh A, Anbarlou A, Tafazzoli-Shadpour M, Ardeshirylajimi A, Khani MM. Substrate topography interacts with substrate stiffness and culture time to regulate mechanical properties and smooth muscle differentiation of mesenchymal stem cells. Colloids Surf B Biointerfaces 2019; 173:194-201. [PMID: 30292932 DOI: 10.1016/j.colsurfb.2018.09.066] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 09/05/2018] [Accepted: 09/25/2018] [Indexed: 02/07/2023]
Abstract
Substrate stiffness and topography are two powerful means by which mesenchymal stem cells (MSCs) activities can be modulated. The effects of substrate stiffness on the MSCs mechanical properties were investigated previously, however, the role of substrate topography in this regard is not yet well understood. Moreover, in vessel wall, these two physical cues act simultaneously to regulate cellular function, hence it is important to investigate their cooperative effects on cellular activity. Herein, we investigated the combined effects of substrate stiffness, substrate topography and culture time on the mechanical behavior of MSCs. The MSCs were cultured on the stiff and soft substrates with or without micro-grooved topography for 10 days and their viscoelastic properties and smooth muscle (SM) gene expression were investigated on days 2, 6 and 10. In general, substrate topography significantly interacted with substrate stiffness as well as culture time in the modulation of cell viscoelastic behavior and SM gene expression. The micro-grooved, stiff substrates resulted in the maximum cell stiffness and gene expression of α-actin and h1-calponin, and these values were detected to be minimum in the smooth, soft substrates. The findings can be helpful in the mechano-regulation of MSCs for vascular tissue engineering applications.
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Affiliation(s)
- Azim Parandakh
- Faculty of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Azadeh Anbarlou
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Abdolreza Ardeshirylajimi
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad-Mehdi Khani
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Parandakh A, Tafazzoli-Shadpour M, Ardeshirylajimi A, Khojasteh A, Khani MM. The effects of short-term uniaxial strain on the mechanical properties of mesenchymal stem cells upon TGF-β1 stimulation. In Vitro Cell Dev Biol Anim 2018; 54:677-686. [DOI: 10.1007/s11626-018-0289-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 08/06/2018] [Indexed: 01/07/2023]
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