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Zheng Y, Chen B, Zhang M, Ma Y, Wang L, Zhang J, Jiang J. Autophagic degradation of LOX-1 is involved in the maintenance of vascular integrity injured by oxLDL and protected by Berberine. Int J Biol Sci 2023; 19:1813-1830. [PMID: 37063419 PMCID: PMC10092756 DOI: 10.7150/ijbs.80958] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 03/07/2023] [Indexed: 04/18/2023] Open
Abstract
Damage to vascular endothelial cells (VECs) and vascular smooth muscle cells (VSMCs) caused by oxidized low-density lipoprotein (oxLDL) contributes to cardiovascular and cerebrovascular diseases. Protection effects of Berberine (BBR) on the cardiovascular system have been reported, however, the molecular mechanism of vascular protection is still unclear. In this study, we established two hyperlipidemia models in zebrafish and VEC-VSMC co-culture using high-cholesterol food (HCF) and oxLDL, respectively. We demonstrated that HCF doubled total cholesterol and total glyceride levels, and BBR decreased these indices in a concentration-dependent manner. Lipid staining and hematoxylin-eosin staining revealed that BBR inhibited oxLDL-induced VSMC bulge-like proliferation and migration toward VECs and prevented the HCF-induced trunk vascular obstruction in zebrafish. Immunoblot analysis, cell immunofluorescence, co-immunoprecipitation assays, and transmission electron microscopy showed that oxLDL/HCF increased lectin-like oxLDL receptor-1 (LOX-1) expression at least 5-fold and significantly inhibited autophagolysosome formation in the blood vessel cells and in zebrafish. These observations were associated with endothelial-to-mesenchymal transition (EMT) in VECs and triggered VE-cadherin ectopic expression in VSMCs, and they were responsible for aberrant VSMC migration and vascular occlusion. However, BBR, by promoting autolysosome formation and degradation of LOX-1, reversed the above events and maintained intracellular homeostasis of vessel cells and vascular integrity. In conclusion, regulation of autophagy may be an effective approach to treating oxLDL-induced cardiovascular diseases by reducing LOX-1 protein level. BBR can protect blood vessels by adjusting the oxLDL-LOX-1-EMT-autophagy axis. This study is a step toward the development of new applications of BBR.
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Affiliation(s)
| | | | | | | | - Lulu Wang
- ✉ Corresponding authors: Lulu Wang, & Jingpu Zhang, ; . Tel.: 0861063186645
| | - Jingpu Zhang
- ✉ Corresponding authors: Lulu Wang, & Jingpu Zhang, ; . Tel.: 0861063186645
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2
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Li P, Cui F, Chen H, Yang Y, Li G, Mao H, Lyu X. A Microfluidic Cell Co-Culture Chip for the Monitoring of Interactions between Macrophages and Fibroblasts. Biosensors (Basel) 2022; 13:bios13010070. [PMID: 36671905 PMCID: PMC9855520 DOI: 10.3390/bios13010070] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/24/2022] [Accepted: 12/25/2022] [Indexed: 05/28/2023]
Abstract
Macrophages and fibroblasts are two types of important cells in wound healing. The development of novel platforms for studying the interrelationship between these two cells is crucial for the exploration of wound-healing mechanisms and drug development. In this study, a microfluidic chip composed of two layers was designed for the co-culturing of these two cells. An air valve was employed to isolate fibroblasts to simulate the wound-healing microenvironment. The confluence rate of fibroblasts in the co-culture system with different macrophages was explored to reflect the role of different macrophages in wound healing. It was demonstrated that M2-type macrophages could promote the activation and migration of fibroblasts and it can be inferred that they could promote the wound-healing process. The proposed microfluidic co-culture system was designed for non-contact cell-cell interactions, which has potential significance for the study of cell-cell interactions in biological processes such as wound healing, tumor microenvironment, and embryonic development.
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Affiliation(s)
- Pengcheng Li
- Department of Orthopedics, West China Hospital, West China School of Nursing, Sichuan University, Chengdu 610041, China
| | - Feiyun Cui
- School of Basic Medical Sciences, Harbin Medical University, Harbin 150081, China
| | - Heying Chen
- The Ministry of Education Key Laboratory of Clinical Diagnostics, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Yao Yang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Gang Li
- Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Defense Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, Chongqing University, Chongqing 400044, China
| | - Hongju Mao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Xiaoyan Lyu
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
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3
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Trossmann VT, Scheibel T. Design of Recombinant Spider Silk Proteins for Cell Type Specific Binding. Adv Healthc Mater 2022; 12:e2202660. [PMID: 36565209 DOI: 10.1002/adhm.202202660] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 10/14/2022] [Revised: 12/19/2022] [Indexed: 12/25/2022]
Abstract
Cytophilic (cell-adhesive) materials are very important for tissue engineering and regenerative medicine. However, for engineering hierarchically organized tissue structures comprising different cell types, cell-specific attachment and guidance are decisive. In this context, materials made of recombinant spider silk proteins are promising scaffolds, since they exhibit high biocompatibility, biodegradability, and the underlying proteins can be genetically functionalized. Here, previously established spider silk variants based on the engineered Araneus diadematus fibroin 4 (eADF4(C16)) are genetically modified with cell adhesive peptide sequences from extracellular matrix proteins, including IKVAV, YIGSR, QHREDGS, and KGD. Interestingly, eADF4(C16)-KGD as one of 18 tested variants is cell-selective for C2C12 mouse myoblasts, one out of 11 tested cell lines. Co-culturing with B50 rat neuronal cells confirms the cell-specificity of eADF4(C16)-KGD material surfaces for C2C12 mouse myoblast adhesion.
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Affiliation(s)
- Vanessa Tanja Trossmann
- Chair of Biomaterials, Engineering Faculty, University of Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447, Bayreuth, Germany
| | - Thomas Scheibel
- Chair of Biomaterials, Engineering Faculty, University of Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447, Bayreuth, Germany.,Bayreuth Center for Colloids and Interfaces (BZKG), Bavarian Polymer Institute (BPI), Bayreuth Center for Molecular Biosciences (BZMB), Bayreuth Center for Material Science (BayMAT), University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
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4
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Hou T, Du M, Gao X, An M. Human Vascular Endothelial Cells Promote the Secretion of Vascularization Factors and Migration of Human Skin Fibroblasts under Co-Culture and Its Preliminary Application. Int J Mol Sci 2022; 23:ijms232213995. [PMID: 36430476 PMCID: PMC9697737 DOI: 10.3390/ijms232213995] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
The good treatment of skin defects has always been a challenge in the medical field, and the emergence of tissue engineering skin provides a new idea for the treatment of injured skin. However, due to the single seed cells, the tissue engineering skin has the problem of slow vascularization at the premonitory site after implantation into the human body. Cell co-culture technology can better simulate the survival and communication environment of cells in the human body. The study of multicellular co-culture hopes to bring a solution to the problem of tissue engineering. In this paper, human skin fibroblasts (HSFs) and human vascular endothelial cells (HVECs) were co-cultured in Transwell. The Cell Counting Kit 8 (CCK8), Transwell migration chamber, immunofluorescence, Western blot (WB), and real time quantitative PCR (RT-qPCR) were used to study the effects of HVECs on cell activity, migration factor (high mobility group protein 1, HMGB1) and vascularization factor (vascular endothelial growth factor A, VEGFA and fibroblast growth factor 2, FGF2) secretion of HSFs after co-cultured with HVECs in the Transwell. The biological behavior of HSFs co-cultured with HVECs was studied. The experimental results are as follows: (1) The results of cck8 showed that HVECS could promote the activity of HSFs. (2) HVECs could significantly promote the migration of HSFs and promote the secretion of HMGB1. (3) HVECs could promote the secretion of VEGFA and FGF2 of HSFs. (4) The HVECs and HSFs were inoculated on tissue engineering scaffolds at the ratio of 1:4 and were co-cultured and detected for 7 days. The results showed that from the third day, the number of HSFs was significantly higher than that of the control group without HVECs.
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Duś-Szachniewicz K, Gdesz-Birula K, Nowosielska E, Ziółkowski P, Drobczyński S. Formation of Lymphoma Hybrid Spheroids and Drug Testing in Real Time with the Use of Fluorescence Optical Tweezers. Cells 2022; 11:cells11132113. [PMID: 35805197 PMCID: PMC9265821 DOI: 10.3390/cells11132113] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/01/2022] [Accepted: 07/03/2022] [Indexed: 11/16/2022] Open
Abstract
Interactions between stromal and lymphoma cells in the bone marrow are closely related to drug resistance and therapy failure. Physiologically relevant pre-clinical three-dimensional (3D) models recapitulating lymphoma microenvironmental complexity do not currently exist. In this study, we proposed a scheme for optically controlled hybrid lymphoma spheroid formation with the use of optical tweezers (OT). Following the preparation of stromal spheroids using agarose hydrogel, two aggressive non-Hodgkin lymphoma B-cell lines, Ri-1 (DLBCL) and Raji (Burkitt lymphoma), were used to conduct multi-cellular spheroid formation driven by in-house-developed fluorescence optical tweezers. Importantly, the newly formed hybrid spheroid preserved the 3D architecture for the next 24 h. Our model was successfully used for the evaluation of the influence of the anticancer agents doxorubicin (DOX), ibrutinib (IBR), and AMD3100 (plerixafor) on the adhesive properties of lymphoma cells. Importantly, our study revealed that a co-treatment of DOX and IBR with AMD3100 affects the adhesion of B-NHL lymphoma cells.
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Affiliation(s)
- Kamila Duś-Szachniewicz
- Department of Clinical and Experimental Pathology, Institute of General and Experimental Pathology, Wrocław Medical University, 50-368 Wrocław, Poland; (K.G.-B.); (P.Z.)
- Correspondence: (K.D.-S.); (S.D.); Tel.: +48-71-784-12-25 (K.D.-S.)
| | - Katarzyna Gdesz-Birula
- Department of Clinical and Experimental Pathology, Institute of General and Experimental Pathology, Wrocław Medical University, 50-368 Wrocław, Poland; (K.G.-B.); (P.Z.)
| | - Emilia Nowosielska
- Department of Optics and Photonics, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, 50-370 Wrocław, Poland;
| | - Piotr Ziółkowski
- Department of Clinical and Experimental Pathology, Institute of General and Experimental Pathology, Wrocław Medical University, 50-368 Wrocław, Poland; (K.G.-B.); (P.Z.)
| | - Sławomir Drobczyński
- Department of Optics and Photonics, Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, 50-370 Wrocław, Poland;
- Correspondence: (K.D.-S.); (S.D.); Tel.: +48-71-784-12-25 (K.D.-S.)
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Chang X, Hao J, Wang X, Liu J, Ni J, Hao L. The Role of AIF-1 in the Aldosterone-Induced Vascular Calcification Related to Chronic Kidney Disease: Evidence From Mice Model and Cell Co-Culture Model. Front Endocrinol (Lausanne) 2022; 13:917356. [PMID: 35937793 PMCID: PMC9347268 DOI: 10.3389/fendo.2022.917356] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 06/20/2022] [Indexed: 11/16/2022] Open
Abstract
Increasing evidence suggests that aldosterone (Aldo) plays an essential role in vascular calcification which is a serious threat to cardiovascular disease (CVD) developed from chronic kidney disease (CKD). However, the exact pathogenesis of vascular calcification is still unclear. First, we established CKD-associated vascular calcification mice model and knockout mice model to investigate the causal relationship between allograft inflammatory factor 1 (AIF-1) and vascular calcification. Then, endothelial cells (ECs) and vascular smooth muscle cells (VSMCs) co-culture experiments were performed to further explore the mechanisms of calcification. The results of the Aldo intervention mice model and transgenic mice model showed that Aldo could cause calcification by increasing the AIF-1 level. The results of in vitro co-culture model of ECs and VSMCs showed that AIF-1 silence in ECs may alleviate Aldo-induced calcification of VSMCs. In conclusion, our study indicated that Aldo may induce vascular calcification related to chronic renal failure via the AIF-1 pathway which may provide a potential therapeutic target.
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Affiliation(s)
- Xueying Chang
- Department of Nephropathy and Hemodialysis, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jianbing Hao
- Department of Nephropathy, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Xingzhi Wang
- Department of Nephropathy and Hemodialysis, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jingwei Liu
- Department of Nephropathy and Hemodialysis, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jie Ni
- Department of Nephropathy and Hemodialysis, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Lirong Hao, ; Jie Ni,
| | - Lirong Hao
- Department of Nephropathy and Hemodialysis, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Lirong Hao, ; Jie Ni,
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7
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Meng DH, Zou JP, Xu QT, Wang JY, Yu JQ, Yuan Y, Chen ZG, Zhang MH, Jiang LB, Zhang J. Endothelial cells promote the proliferation and migration of Schwann cells. Ann Transl Med 2022; 10:78. [PMID: 35282045 PMCID: PMC8848405 DOI: 10.21037/atm-22-81] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/18/2022] [Indexed: 11/23/2022]
Abstract
Background After peripheral nerve injury, Schwann cells proliferate and migrate to the injured site, thereby promoting peripheral nerve regeneration. The process is regulated by various factors. Endothelial cells participate in the process via angiogenesis. However, the effects of endothelial cells on Schwann cells are not yet known. The present study sought to evaluate whether endothelial cells accelerate Schwann cell proliferation and migration. Methods We established a co-culture model of rat Schwann cells (RSC96s) and rat aortic endothelial cells (RAOECs), and studied the effects of endothelial cells on Schwann cells by evaluating changes in Schwann cell proliferation and migration and related multiple genes and their protein expressions in the co-culture model. Results The results showed that increasing the proportion of endothelial cells in the co-culture model enhanced the proliferation. At days 1 and 3 following the co-culturing, the relative growth rates of the co-cultured cells were 122.87% and 127.37%, respectively, which showed a significant increase in the viability compared to that of the RSC96s (P<0.05). In this process, the expression of Ki67 increased. The migration ability of Schwann cells was also enhanced. The migration capacity of Schwann cells was detected by wound-healing and Transwell assays. The results of the group with 15% of endothelial cells was significantly higher than the results of the other groups (P<0.0001 and P<0.05, respectively). Further, neuregulin 1 and glial fibrillary acidic protein increased the process of Schwann cell migration. Conclusions The results showed that endothelial cells can promote the proliferation and migration of Schwann cells and participate in peripheral nerve regeneration.
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Affiliation(s)
- De-Hua Meng
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jia-Peng Zou
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qin-Tong Xu
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jia-Yi Wang
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jie-Qin Yu
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ya Yuan
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zeng-Gan Chen
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ming-He Zhang
- Department of Orthopedics, The 455th Hospital of Chinese People's Liberation Army, Shanghai, China
| | - Li-Bo Jiang
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jian Zhang
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
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Borciani G, Montalbano G, Melo P, Baldini N, Ciapetti G, Vitale-Brovaron C. Assessment of Collagen-Based Nanostructured Biomimetic Systems with a Co-Culture of Human Bone-Derived Cells. Cells 2021; 11:26. [PMID: 35011588 DOI: 10.3390/cells11010026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/03/2021] [Accepted: 12/14/2021] [Indexed: 12/25/2022] Open
Abstract
Osteoporosis is a worldwide disease resulting in the increase of bone fragility and enhanced fracture risk in adults. In the context of osteoporotic fractures, bone tissue engineering (BTE), i.e., the use of bone substitutes combining biomaterials, cells, and other factors, is considered a potential alternative to conventional treatments. Innovative scaffolds need to be tested in in vitro systems where the simultaneous presence of osteoblasts (OBs) and osteoclasts (OCs), the two main players of bone remodeling, is required to mimic their crosstalk and molecular cooperation. To this aim, two composite materials were developed, based on type I collagen, and containing either strontium-enriched mesoporous bioactive glasses or rod-like hydroxyapatite nanoparticles. The developed nanostructured systems underwent genipin chemical crosslinking and were then tested with an indirect co-culture of human trabecular bone-derived OBs and buffy coat-derived OC precursors, for 2–3 weeks. The favorable structural and biological properties of the materials proved to successfully support the viability, adhesion, and differentiation of cells, encouraging a further investigation of the developed bioactive systems as biomaterial inks for the 3D printing of more complex scaffolds for BTE.
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Wang D, Cong Y, Deng Q, Han X, Zhang S, Zhao L, Luo Y, Zhang X. Physiological and Disease Models of Respiratory System Based on Organ-on-a-Chip Technology. Micromachines (Basel) 2021; 12:mi12091106. [PMID: 34577749 PMCID: PMC8467891 DOI: 10.3390/mi12091106] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/09/2021] [Accepted: 06/18/2021] [Indexed: 12/11/2022]
Abstract
The pathogenesis of respiratory diseases is complex, and its occurrence and development also involve a series of pathological processes. The present research methods are have difficulty simulating the natural developing state of the disease in the body, and the results cannot reflect the real growth state and function in vivo. The development of microfluidic chip technology provides a technical platform for better research on respiratory diseases. The size of its microchannel can be similar to the space for cell growth in vivo. In addition, organ-on-a-chip can achieve long-term co-cultivation of multiple cells and produce precisely controllable fluid shear force, periodically changing mechanical force, and perfusate with varying solute concentration gradient. To sum up, the chip can be used to analyze the specific pathophysiological changes of organs meticulously, and it is widely used in scientific research on respiratory diseases. The focus of this review is to describe and discuss current studies of artificial respiratory systems based on organ-on-a-chip technology and to summarize their applications in the real world.
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Affiliation(s)
- Di Wang
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China; (D.W.); (Q.D.); (X.H.)
- Department of Pulmonary and Critical Care Medicine, Second Medical School, China Medical University, Shenyang 110004, China
| | - Ye Cong
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; (Y.C.); (S.Z.)
| | - Quanfeng Deng
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China; (D.W.); (Q.D.); (X.H.)
| | - Xiahe Han
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China; (D.W.); (Q.D.); (X.H.)
| | - Suonan Zhang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; (Y.C.); (S.Z.)
| | - Li Zhao
- Department of Pulmonary and Critical Care Medicine, Second Medical School, China Medical University, Shenyang 110004, China
- Correspondence: (L.Z.); (Y.L.); (X.Z.); Tel.: +86-138-4116-9035 (X.Z.)
| | - Yong Luo
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; (Y.C.); (S.Z.)
- Correspondence: (L.Z.); (Y.L.); (X.Z.); Tel.: +86-138-4116-9035 (X.Z.)
| | - Xiuli Zhang
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, China; (D.W.); (Q.D.); (X.H.)
- Correspondence: (L.Z.); (Y.L.); (X.Z.); Tel.: +86-138-4116-9035 (X.Z.)
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Tasiopoulos CP, Gustafsson L, van der Wijngaart W, Hedhammar M. Fibrillar Nanomembranes of Recombinant Spider Silk Protein Support Cell Co-culture in an In Vitro Blood Vessel Wall Model. ACS Biomater Sci Eng 2021; 7:3332-3339. [PMID: 34169711 PMCID: PMC8290846 DOI: 10.1021/acsbiomaterials.1c00612] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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] [Indexed: 01/09/2023]
Abstract
![]()
Basement membrane
is a thin but dense network of self-assembled
extracellular matrix (ECM) protein fibrils that anchors and physically
separates epithelial/endothelial cells from the underlying connective
tissue. Current replicas of the basement membrane utilize either synthetic
or biological polymers but have not yet recapitulated its geometric
and functional complexity highly enough to yield representative in vitro co-culture tissue models. In an attempt to model
the vessel wall, we seeded endothelial and smooth muscle cells on
either side of 470 ± 110 nm thin, mechanically robust, and nanofibrillar
membranes of recombinant spider silk protein. On the apical side,
a confluent endothelium formed within 4 days, with the ability to
regulate the permeation of representative molecules (3 and 10 kDa
dextran and IgG). On the basolateral side, smooth muscle cells produced
a thicker ECM with enhanced barrier properties compared to conventional
tissue culture inserts. The membranes withstood 520 ± 80 Pa pressure
difference, which is of the same magnitude as capillary blood pressure in vivo. This use of protein nanomembranes with relevant
properties for co-culture opens up for developing advanced in vitro tissue models for drug screening and potent substrates
in organ-on-a-chip systems.
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Affiliation(s)
- Christos Panagiotis Tasiopoulos
- School of Engineering Sciences in Chemistry, Biotechnology, and Health, Department of Protein Science, AlbaNova University Center, KTH-Royal Institute of Technology, Roslagstullsbacken 21, 114 21 Stockholm, Sweden
| | - Linnea Gustafsson
- School of Electrical Engineering and Computer Science, Division of Micro and Nanosystems, KTH-Royal Institute of Technology, Malvinas väg 10, 114 28 Stockholm, Sweden
| | - Wouter van der Wijngaart
- School of Electrical Engineering and Computer Science, Division of Micro and Nanosystems, KTH-Royal Institute of Technology, Malvinas väg 10, 114 28 Stockholm, Sweden
| | - My Hedhammar
- School of Engineering Sciences in Chemistry, Biotechnology, and Health, Department of Protein Science, AlbaNova University Center, KTH-Royal Institute of Technology, Roslagstullsbacken 21, 114 21 Stockholm, Sweden
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Verbruggen SW, Thompson CL, Duffy MP, Lunetto S, Nolan J, Pearce OMT, Jacobs CR, Knight MM. Mechanical Stimulation Modulates Osteocyte Regulation of Cancer Cell Phenotype. Cancers (Basel) 2021; 13:2906. [PMID: 34200761 PMCID: PMC8230361 DOI: 10.3390/cancers13122906] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 12/12/2022] Open
Abstract
Breast and prostate cancers preferentially metastasise to bone tissue, with metastatic lesions forming in the skeletons of most patients. On arriving in bone tissue, disseminated tumour cells enter a mechanical microenvironment that is substantially different to that of the primary tumour and is largely regulated by bone cells. Osteocytes, the most ubiquitous bone cell type, orchestrate healthy bone remodelling in response to physical exercise. However, the effects of mechanical loading of osteocytes on cancer cell behaviour is still poorly understood. The aim of this study was to characterise the effects of osteocyte mechanical stimulation on the behaviour of breast and prostate cancer cells. To replicate an osteocyte-controlled environment, this study treated breast (MDA-MB-231 and MCF-7) and prostate (PC-3 and LNCaP) cancer cell lines with conditioned media from MLO-Y4 osteocyte-like cells exposed to mechanical stimulation in the form of fluid shear stress. We found that osteocyte paracrine signalling acted to inhibit metastatic breast and prostate tumour growth, characterised by reduced proliferation and invasion and increased migration. In breast cancer cells, these effects were largely reversed by mechanical stimulation of osteocytes. In contrast, conditioned media from mechanically stimulated osteocytes had no effect on prostate cancer cells. To further investigate these interactions, we developed a microfluidic organ-chip model using the Emulate platform. This new organ-chip model enabled analysis of cancer cell migration, proliferation and invasion in the presence of mechanical stimulation of osteocytes by fluid shear stress, resulting in increased invasion of breast and prostate cancer cells. These findings demonstrate the importance of osteocytes and mechanical loading in regulating cancer cell behaviour and the need to incorporate these factors into predictive in vitro models of bone metastasis.
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Affiliation(s)
- Stefaan W. Verbruggen
- Department of Biomedical Engineering, Columbia University in the City of New York, New York, NY 10027, USA; (M.P.D.); (C.R.J.)
- Centre for Predictive in vitro Models, School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK; (C.L.T.); (S.L.); (J.N.); (M.M.K.)
- Department of Mechanical Engineering and INSIGNEO Institute for in silico Medicine, University of Sheffield, Sheffield S1 3JD, UK
| | - Clare L. Thompson
- Centre for Predictive in vitro Models, School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK; (C.L.T.); (S.L.); (J.N.); (M.M.K.)
- Queen Mary + Emulate Organs-on-Chips Centre, Queen Mary University of London, London E1 4NS, UK
| | - Michael P. Duffy
- Department of Biomedical Engineering, Columbia University in the City of New York, New York, NY 10027, USA; (M.P.D.); (C.R.J.)
| | - Sophia Lunetto
- Centre for Predictive in vitro Models, School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK; (C.L.T.); (S.L.); (J.N.); (M.M.K.)
| | - Joanne Nolan
- Centre for Predictive in vitro Models, School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK; (C.L.T.); (S.L.); (J.N.); (M.M.K.)
- Queen Mary + Emulate Organs-on-Chips Centre, Queen Mary University of London, London E1 4NS, UK
- Barts Cancer Institute, School of Medicine and Dentistry, Queen Mary University of London, London EC1M 5PZ, UK;
| | - Oliver M. T. Pearce
- Barts Cancer Institute, School of Medicine and Dentistry, Queen Mary University of London, London EC1M 5PZ, UK;
| | - Christopher R. Jacobs
- Department of Biomedical Engineering, Columbia University in the City of New York, New York, NY 10027, USA; (M.P.D.); (C.R.J.)
| | - Martin M. Knight
- Centre for Predictive in vitro Models, School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK; (C.L.T.); (S.L.); (J.N.); (M.M.K.)
- Queen Mary + Emulate Organs-on-Chips Centre, Queen Mary University of London, London E1 4NS, UK
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12
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Ramadan Q, Gourikutty SBN, Zhang Q. OOCHIP: Compartmentalized Microfluidic Perfusion System with Porous Barriers for Enhanced Cell-Cell Crosstalk in Organ-on-a-Chip. Micromachines (Basel) 2020; 11:mi11060565. [PMID: 32486495 PMCID: PMC7344814 DOI: 10.3390/mi11060565] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/30/2020] [Accepted: 05/30/2020] [Indexed: 12/28/2022]
Abstract
Improved in vitro models of human organs for predicting drug efficacy, interactions, and disease modelling are crucially needed to minimize the use of animal models, which inevitably display significant differences from the human disease state and metabolism. Inside the body, cells are organized either in direct contact or in close proximity to other cell types in a tightly controlled architecture that regulates tissue function. To emulate this cellular interface in vitro, an advanced cell culture system is required. In this paper, we describe a set of compartmentalized silicon-based microfluidic chips that enable co-culturing several types of cells in close proximity with enhanced cell–cell interaction. In vivo-like fluid flow into and/or from each compartment, as well as between adjacent compartments, is maintained by micro-engineered porous barriers. This porous structure provides a tool for mimicking the paracrine exchange between cells in the human body. As a demonstrating example, the microfluidic system was tested by culturing human adipose tissue that is infiltrated with immune cells to study the role if the interplay between the two cells in the context of type 2 diabetes. However, the system provides a platform technology for mimicking the structure and function of single- and multi-organ models, which could significantly narrow the gap between in vivo and in vitro conditions.
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Affiliation(s)
- Qasem Ramadan
- Agency for Science, Technology and Research, 2 Fusionopolis Way, #08-02, Innovis Tower, Singapore 138635, Singapore; (S.B.N.G.); (Q.Z.)
- College of Science and General Studies, Alfaisal University, Riyadh 11533, Saudi Arabia
- Correspondence:
| | | | - Qingxin Zhang
- Agency for Science, Technology and Research, 2 Fusionopolis Way, #08-02, Innovis Tower, Singapore 138635, Singapore; (S.B.N.G.); (Q.Z.)
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13
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Chen S, Zhou C, Yu H, Tao L, An Y, Zhang X, Wang Y, Wang Y, Xiao R. 27-Hydroxycholesterol Contributes to Lysosomal Membrane Permeabilization-Mediated Pyroptosis in Co-cultured SH-SY5Y Cells and C6 Cells. Front Mol Neurosci 2019; 12:14. [PMID: 30881285 PMCID: PMC6405519 DOI: 10.3389/fnmol.2019.00014] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [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: 10/23/2018] [Accepted: 01/15/2019] [Indexed: 01/01/2023] Open
Abstract
Purpose: Emerging evidence suggests that 27-Hydroxycholesterol (27-OHC) causes neurodegenerative diseases through the induction of cytotoxicity and cholesterol metabolism disorder. The objective of this study is to determine the impacts of 27-OHC on lysosomal membrane permeabilization (LMP) and pyroptosis in neurons in the development of neural degenerative diseases. Methods: In this study, SH-SY5Y cells and C6 cells were co-cultured in vitro to investigate the influence of 27-OHC on the function of lysosome, LMP and pyroptosis related factors in neuron. Lyso Tracker Red (LTR) was used to detect the changes of lysosome pH, volume and number. Acridine orange (AO) staining was also used to detect the LMP in neurons. Then the morphological changes of cells were observed by a scanning electron microscope (SEM). The content of lysosome function associated proteins [including Cathepsin B (CTSB), Cathepsin D (CTSD), lysosomal-associated membraneprotein-1 (LAMP-1), LAMP-2] and the pyroptosis associated proteins [including nod-like recepto P3 (NLRP3), gasdermin D (GSDMD), caspase-1 and interleukin (IL)-1β] were detected through Western blot. Results: Results showed higher levels of lysosome function associated proteins, such as CTSB (p < 0.05), CTSD (p < 0.05), LAMP-1 (p < 0.01), LAMP-2; p < 0.01) in 27-OHC treated group than that in the control group. AO staining and LTR staining showed that 27-OHC induced lysosome dysfunction with LMP. Content of pyroptosis related factor proteins, such as GSDMD (p < 0.01), NLRP3 (p < 0.001), caspase-1 (p < 0.01) and IL-1β (p < 0.01) were increased in 27-OHC treated neurons. Additionally, CTSB was leaked through LMP into the cytosol and induced pyroptosis. Results from the present study also suggested that the CTSB is involved in activation of pyroptosis. Conclusion: Our data indicate that 27-OHC contributes to the pathogenesis of cell death by inducing LMP and pyroptosis in neurons.
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Affiliation(s)
- Si Chen
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, Beijing, China
| | - Cui Zhou
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, Beijing, China
| | - Huiyan Yu
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, Beijing, China
| | - Lingwei Tao
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, Beijing, China
| | - Yu An
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, Beijing, China
| | - Xiaona Zhang
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, Beijing, China
| | - Ying Wang
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, Beijing, China
| | - Yushan Wang
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, Beijing, China
| | - Rong Xiao
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, Beijing, China
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14
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Wang L, Mehta S, Ahmed Y, Wallace S, Pape MC, Gill SE. Differential Mechanisms of Septic Human Pulmonary Microvascular Endothelial Cell Barrier Dysfunction Depending on the Presence of Neutrophils. Front Immunol 2018; 9:1743. [PMID: 30116240 PMCID: PMC6082932 DOI: 10.3389/fimmu.2018.01743] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 12/09/2017] [Accepted: 07/16/2018] [Indexed: 01/06/2023] Open
Abstract
Sepsis is characterized by injury of pulmonary microvascular endothelial cells (PMVEC) leading to barrier dysfunction. Multiple mechanisms promote septic PMVEC barrier dysfunction, including interaction with circulating leukocytes and PMVEC apoptotic death. Our previous work demonstrated a strong correlation between septic neutrophil (PMN)-dependent PMVEC apoptosis and pulmonary microvascular albumin leak in septic mice in vivo; however, this remains uncertain in human PMVEC. Thus, we hypothesize that human PMVEC apoptosis is required for loss of PMVEC barrier function under septic conditions in vitro. To assess this hypothesis, human PMVECs cultured alone or in coculture with PMN were stimulated with PBS or cytomix (equimolar interferon γ, tumor necrosis factor α, and interleukin 1β) in the absence or presence of a pan-caspase inhibitor, Q-VD, or specific caspase inhibitors. PMVEC barrier function was assessed by transendothelial electrical resistance (TEER), as well as fluoroisothiocyanate-labeled dextran and Evans blue-labeled albumin flux across PMVEC monolayers. PMVEC apoptosis was identified by (1) loss of cell membrane polarity (Annexin V), (2) caspase activation (FLICA), and (3) DNA fragmentation [terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL)]. Septic stimulation of human PMVECs cultured alone resulted in loss of barrier function (decreased TEER and increased macromolecular flux) associated with increased apoptosis (increased Annexin V, FLICA, and TUNEL staining). In addition, treatment of septic PMVEC cultured alone with Q-VD decreased PMVEC apoptosis and prevented septic PMVEC barrier dysfunction. In septic PMN-PMVEC cocultures, there was greater trans-PMVEC macromolecular flux (both dextran and albumin) vs. PMVEC cultured alone. PMN presence also augmented septic PMVEC caspase activation (FLICA staining) vs. PMVEC cultured alone but did not affect septic PMVEC apoptosis. Importantly, pan-caspase inhibition (Q-VD treatment) completely attenuated septic PMN-dependent PMVEC barrier dysfunction. Moreover, inhibition of caspase 3, 8, or 9 in PMN-PMVEC cocultures also reduced septic PMVEC barrier dysfunction whereas inhibition of caspase 1 had no effect. Our data demonstrate that human PMVEC barrier dysfunction under septic conditions in vitro (cytomix stimulation) is clearly caspase-dependent, but the mechanism differs depending on the presence of PMN. In isolated PMVEC, apoptosis contributes to septic barrier dysfunction, whereas PMN presence enhances caspase-dependent septic PMVEC barrier dysfunction independently of PMVEC apoptosis.
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Affiliation(s)
- Lefeng Wang
- Centre for Critical Illness Research, Lawson Health Research Institute, London, ON, Canada.,Department of Medicine, Western University, London, ON, Canada
| | - Sanjay Mehta
- Centre for Critical Illness Research, Lawson Health Research Institute, London, ON, Canada.,Department of Medicine, Western University, London, ON, Canada.,Division of Respirology, Western University, London, ON, Canada
| | - Yousuf Ahmed
- Centre for Critical Illness Research, Lawson Health Research Institute, London, ON, Canada.,Department of Medicine, Western University, London, ON, Canada
| | - Shelby Wallace
- Department of Physiology and Pharmacology, Western University, London, ON, Canada
| | - M Cynthia Pape
- Centre for Critical Illness Research, Lawson Health Research Institute, London, ON, Canada.,Department of Medicine, Western University, London, ON, Canada
| | - Sean E Gill
- Centre for Critical Illness Research, Lawson Health Research Institute, London, ON, Canada.,Department of Medicine, Western University, London, ON, Canada.,Division of Respirology, Western University, London, ON, Canada.,Department of Physiology and Pharmacology, Western University, London, ON, Canada
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15
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Yang X, Xu X, Zhang Y, Wen W, Gao X. 3D Microstructure Inhibits Mesenchymal Stem Cells Homing to the Site of Liver Cancer Cells on a Microchip. Genes (Basel) 2017; 8:E218. [PMID: 28862651 DOI: 10.3390/genes8090218] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 08/28/2017] [Accepted: 08/29/2017] [Indexed: 12/13/2022] Open
Abstract
The cell microenvironment consists of multiple types of biophysical and biochemical factors, and represents a complex integrated system that is variable in both time and space. Studies show that changes in biochemical and biophysical factors in cell microenvironments result in significant changes in cellular forms and functions, especially for stem cells. Mesenchymal stem cells (MSCs) are derived from adult stem cells of the mesoderm and play an important role in tissue engineering, regenerative medicine and even cancer therapy. Furthermore, it is found that MSCs can interact with multiple types of tumor cells. The interaction is reflected as two totally different aspects. The negative aspect is that MSCs manifest as tumor-associated fibroblasts and could induce migration of cancer cells and promote tumor formation. On the other hand, MSCs can home to sites of the tumor microenvironment, directionally migrate toward tumor cells and cause tumor cell apoptosis. In this study, we designed and made a simple microfluidic chip for cell co-culture, and studied stem cell homing behavior in the interaction between MSCs and liver cancer cells. Moreover, by etching a three-dimensional microstructure on the base and adding transforming growth factor-β (TGF-β) in the co-culture environment, we studied the impact of biophysical and biochemical factors on stem cell homing behavior, and the causes of such impact.
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16
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Zhang X, Liu Y, Lu L, Huang S, Ding Y, Zhang Y, Guo Q, Li Z, Zhao L. Oroxyloside A Overcomes Bone Marrow Microenvironment-Mediated Chronic Myelogenous Leukemia Resistance to Imatinib via Suppressing Hedgehog Pathway. Front Pharmacol 2017; 8:526. [PMID: 28848440 PMCID: PMC5554535 DOI: 10.3389/fphar.2017.00526] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 03/21/2017] [Accepted: 07/26/2017] [Indexed: 12/27/2022] Open
Abstract
Imatinib (IM), as first inhibitor of the oncogenic tyrosine kinase BCR-ABL, has been widely used to treat chronic myeloid leukemia (CML) for decades in clinic. However, resistance to IM usually occurs in CML patients. The bone marrow (BM), as the predominant microenvironment of CML, secretes an abundant amount of cytokines, which may contribute to drug resistance. In current study, we utilized in vitro K562 co-culture model with BM stroma to investigate IM resistance. As a result, co-culturing of K562 with BM stroma was sufficient to cause resistance to IM, which was accompanied with the activation of hedgehog (Hh) signaling pathway and upregulation of BCR-ABL as well as its downstream proteins like phosphorylated Akt, Bcl-xL and survivin, etc. On the other hand, oroxyloside A (OAG), a metabolite of oroxylin A from the root of Scutellaria baicalensis Georgi, which had low toxic effect on K562 cells, was able to sensitize K562 cells co-cultured with BM stroma to IM treatment in vitro and in vivo. We observed that OAG suppressed Hh pathway and subsequently nuclear translocation of GLI1, followed by downregulation of BCR-ABL and its downstream effectors, thus facilitating IM to induce apoptosis of K562 cells. Together, BM microenvironment rendered K562 cells drug resistance through activating Hh signaling, however, OAG could overcome IM resistance of CML cells through inhibiting Hh-BCR-ABL axis in vitro and in vivo.
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Affiliation(s)
- Xiaobo Zhang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical UniversityNanjing, China
| | - Yicheng Liu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical UniversityNanjing, China
| | - Lu Lu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical UniversityNanjing, China
| | - Shaoliang Huang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical UniversityNanjing, China
| | - Youxiang Ding
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical UniversityNanjing, China
| | - Yi Zhang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical UniversityNanjing, China
| | - Qinglong Guo
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical UniversityNanjing, China
| | - Zhiyu Li
- Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical UniversityNanjing, China
| | - Li Zhao
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical UniversityNanjing, China
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17
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Strale PO, Azioune A, Bugnicourt G, Lecomte Y, Chahid M, Studer V. Multiprotein Printing by Light-Induced Molecular Adsorption. Adv Mater 2016; 28:2024-9. [PMID: 26689426 DOI: 10.1002/adma.201504154] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 09/29/2015] [Indexed: 05/21/2023]
Abstract
Light-induced molecular adsorption of proteins (LIMAP) allows for quantitative sub-micrometer-resolution printing of multiple biomolecules. Surface-bound gradients are patterned within minutes over an entire glass cover-slip. LIMAP is used to perform selective immuno-assays, to dynamically control the adhesion of individual cells, and to achieve hierarchical co-cultures instrumental for tissue engineering.
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Affiliation(s)
- Pierre-Olivier Strale
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, F-33077, Bordeaux, France
- CNRS UMR 5297, F-33077, Bordeaux, France
| | - Ammar Azioune
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, F-33077, Bordeaux, France
- CNRS UMR 5297, F-33077, Bordeaux, France
- Ecole Nationale Supérieure de Biotechnologie, Université Ali Mendjeli, BP E66, 25100, Constantine, Algeria
| | - Ghislain Bugnicourt
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, F-33077, Bordeaux, France
- CNRS UMR 5297, F-33077, Bordeaux, France
| | - Yohan Lecomte
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, F-33077, Bordeaux, France
- CNRS UMR 5297, F-33077, Bordeaux, France
| | - Makhlad Chahid
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, F-33077, Bordeaux, France
- CNRS UMR 5297, F-33077, Bordeaux, France
| | - Vincent Studer
- Interdisciplinary Institute for Neuroscience, University of Bordeaux, F-33077, Bordeaux, France
- CNRS UMR 5297, F-33077, Bordeaux, France
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18
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Kusuma S, Smith Q, Facklam A, Gerecht S. Micropattern size-dependent endothelial differentiation from a human induced pluripotent stem cell line. J Tissue Eng Regen Med 2015; 11:855-861. [PMID: 25641688 DOI: 10.1002/term.1985] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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: 06/25/2014] [Revised: 11/13/2014] [Accepted: 12/09/2014] [Indexed: 01/02/2023]
Abstract
The multifaceted extracellular milieu presents biochemical and biophysical stimuli that influence stem cell differentiation. Two-dimensional (2D) micropatterned substrates allow the presentation of these cues in spatially defined geometries that have been demonstrated to guide stem cell fate decisions. Leveraging stem cells to reconstruct microvasculature, made up of an inner lining of endothelial cells (ECs) supported by pericytes, is critical to tissue-engineering advances; thus, methods to improve endothelial differentiation efficiency are vital to these efforts. In this study, we examine the hypothesis that the diameter of micropatterned islands influences endothelial differentiation from human induced pluripotent stem cells (hiPSCs). Comparing island diameters of 80, 140, 225 and 500 µm, we found that co-cultures of control ECs and pericytes did not yield variable ratios of cell types; however, when hiPSCs were differentiated toward a bicellular population of ECs and pericytes on these varying micropattern feature sizes, we found that smaller islands promoted EC differentiation efficiency, yielding a derived population composed of 70% ECs, which exhibited a greater sprouting propensity. Differentiation on the largest feature size exhibited a smaller EC yield, similar to that on non-patterned substrates. Taken together, these data demonstrate that micropatterned islands of varying diameters can be used to modulate EC differentiation efficiency. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- Sravanti Kusuma
- Department of Chemical and Biomolecular Engineering, Johns Hopkins Physical Sciences, Oncology Center and Institute for NanoBioTechnology, Baltimore, MD, USA.,Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Quinton Smith
- Department of Chemical and Biomolecular Engineering, Johns Hopkins Physical Sciences, Oncology Center and Institute for NanoBioTechnology, Baltimore, MD, USA
| | - Amanda Facklam
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Sharon Gerecht
- Department of Chemical and Biomolecular Engineering, Johns Hopkins Physical Sciences, Oncology Center and Institute for NanoBioTechnology, Baltimore, MD, USA.,Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, USA
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