1
|
Tan Kwan Zen N, Zeming KK, Teo KL, Loberas M, Lee J, Goh CR, Yang DH, Oh S, Hui Hoi Po J, Cool SM, Hou HW, Han J. Scalable mesenchymal stem cell enrichment from bone marrow aspirate using deterministic lateral displacement (DLD) microfluidic sorting. LAB ON A CHIP 2023; 23:4313-4323. [PMID: 37702123 DOI: 10.1039/d3lc00379e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
The growing interest in regenerative medicine has opened new avenues for novel cell therapies using stem cells. Bone marrow aspirate (BMA) is an important source of stromal mesenchymal stem cells (MSCs). Conventional MSC harvesting from BMA relies on archaic centrifugation methods, often leading to poor yield due to osmotic stress, high centrifugation force, convoluted workflow, and long experimental time (∼2-3 hours). To address these issues, we have developed a scalable microfluidic technology based on deterministic lateral displacement (DLD) for MSC isolation. This passive, label-free cell sorting method capitalizes on the morphological differences between MSCs and blood cells (platelets and RBCs) for effective separation using an inverted L-shaped pillar array. To improve throughput, we developed a novel multi-chip DLD system that can process 2.5 mL of raw BMA in 20 ± 5 minutes, achieving a 2-fold increase in MSC recovery compared to centrifugation methods. Taken together, we envision that the developed DLD platform will enable fast and efficient isolation of MSCs from BMA for effective downstream cell therapy in clinical settings.
Collapse
Affiliation(s)
- Nicholas Tan Kwan Zen
- Critical Analytics for Manufacturing of Personalized Medicine, Singapore-MIT Alliance for Research and Technology (SMART), 138602, Singapore
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore
| | - Kerwin Kwek Zeming
- Critical Analytics for Manufacturing of Personalized Medicine, Singapore-MIT Alliance for Research and Technology (SMART), 138602, Singapore
| | - Kim Leng Teo
- Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 138668, Singapore
| | - Mavis Loberas
- NUS Tissue Engineering Program, Life Sciences Institute, National University of Singapore, 117510, Singapore
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 119288, Singapore
| | - Jialing Lee
- Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 138668, Singapore
| | - Chin Ren Goh
- Critical Analytics for Manufacturing of Personalized Medicine, Singapore-MIT Alliance for Research and Technology (SMART), 138602, Singapore
| | - Da Hou Yang
- Critical Analytics for Manufacturing of Personalized Medicine, Singapore-MIT Alliance for Research and Technology (SMART), 138602, Singapore
| | - Steve Oh
- Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), 138668, Singapore
| | - James Hui Hoi Po
- NUS Tissue Engineering Program, Life Sciences Institute, National University of Singapore, 117510, Singapore
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 119288, Singapore
| | - Simon M Cool
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, 119288, Singapore
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), 138668, Singapore
- School of Chemical Engineering, University of Queensland, Brisbane, 4072, Australia
| | - Han Wei Hou
- Critical Analytics for Manufacturing of Personalized Medicine, Singapore-MIT Alliance for Research and Technology (SMART), 138602, Singapore
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, 639798, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, 308232, Singapore
| | - Jongyoon Han
- Critical Analytics for Manufacturing of Personalized Medicine, Singapore-MIT Alliance for Research and Technology (SMART), 138602, Singapore
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA.
| |
Collapse
|
2
|
Keeling LE, Belk JW, Kraeutler MJ, Kallner AC, Lindsay A, McCarty EC, Postma WF. Bone Marrow Aspirate Concentrate for the Treatment of Knee Osteoarthritis: A Systematic Review. Am J Sports Med 2022; 50:2315-2323. [PMID: 34236913 DOI: 10.1177/03635465211018837] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Bone marrow aspirate concentrate (BMAC) has emerged as a therapeutic option for symptomatic knee osteoarthritis (OA). PURPOSE To systematically review the literature to evaluate the efficacy of isolated BMAC injection in the treatment of OA of the knee joint. STUDY DESIGN Systematic review; Level of evidence, 4. METHODS A systematic review was performed by searching the PubMed, Embase, and Cochrane Library databases up to July 2020 to identify human studies that assessed the clinical outcomes of isolated BMAC injection for the treatment of knee OA. The electronic search strategy used was "bone marrow aspirate concentrate knee osteoarthritis." RESULTS Eight studies met the inclusion criteria, including a total of 299 knees with a mean follow-up of 12.9 months (range, 6-30 months). Of all patient-reported outcomes assessed across studies, 34 of 36 (94.4%) demonstrated significant improvement from baseline to latest follow-up (P < .05). Five studies evaluating numerical pain scores (visual analog scale and Numeric Rating Scale) reported significant improvements in pain level at final follow-up (P < .01). However, 3 comparative studies evaluating BMAC in relation to other therapeutic injections failed to demonstrate the clinical superiority of BMAC. CONCLUSION The BMAC injection is effective in improving pain and patient-reported outcomes in patients with knee OA at short- to midterm follow-up. Nevertheless, BMAC has not demonstrated clinical superiority in relation to other biologic therapies commonly used in the treatment of OA, including platelet-rich plasma and microfragmented adipose tissue, or in relation to placebo. The high cost of the BMAC injection in comparison with other biologic and nonoperative treatment modalities may limit its utility despite demonstrable clinical benefit.
Collapse
Affiliation(s)
- Laura E Keeling
- Department of Orthopaedics, MedStar Georgetown University Hospital, Washington, DC, USA
| | - John W Belk
- Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Matthew J Kraeutler
- Department of Orthopaedic Surgery, St Joseph's University Medical Center, Paterson, New Jersey, USA
| | | | - Adam Lindsay
- Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Eric C McCarty
- Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - William F Postma
- Department of Orthopaedics, MedStar Georgetown University Hospital, Washington, DC, USA
| |
Collapse
|
3
|
Zhang Y, Wang P, Jin J, Li L, He SY, Zhou P, Jiang Q, Wen C. In silico and in vivo studies of the effect of surface curvature on the osteoconduction of porous scaffolds. Biotechnol Bioeng 2021; 119:591-604. [PMID: 34723387 DOI: 10.1002/bit.27976] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 10/14/2021] [Accepted: 10/25/2021] [Indexed: 01/08/2023]
Abstract
Recent evidence shows that the curvature of porous scaffold plays a significant role in guiding tissue regeneration. However, the underlying mechanism remains controversial to date. In this study, we developed an in silico model to simulate the effect of surface curvature on the osteoconduction of scaffold implants, which comprises the primary aspects of bone regeneration. Selective laser melting was used to manufacture a titanium scaffold with channels representative of different strut curvatures for in vivo assessment. The titanium scaffold was implanted in the femur condyles of rabbits to validate the mathematical model. Simulation results suggest that the curvature affected the distribution of growth factors and subsequently induced the migration of osteoblast lineage cells and bone deposition to the locations with higher curvature. The predictions of the mathematical model are in good agreement with the in vivo assessment results, in which newly formed bone first appeared adjacent to the vertices of the major axes in elliptical channels. The mechanism of curvature-guided osteoconduction may provide a guide for the design optimization of scaffold implants to achieve enhanced bone ingrowth.
Collapse
Affiliation(s)
- Yun Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Peng Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.,Department of Sports Medicine and Adult Reconstructive Surgery, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Jiyong Jin
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Lan Li
- Department of Sports Medicine and Adult Reconstructive Surgery, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Si-Yuan He
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Ping Zhou
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Qing Jiang
- Department of Sports Medicine and Adult Reconstructive Surgery, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Cuie Wen
- School of Aerospace Mechanical and Manufacturing Engineering, RMIT University, Melbourne, Victoria, Australia
| |
Collapse
|
4
|
Chu W, Li T, Jia G, Chang Y, Liu Z, Pei J, Yu D, Zhai Z. Exposure to high levels of magnesium disrupts bone mineralization in vitro and in vivo. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1419. [PMID: 33313164 PMCID: PMC7723563 DOI: 10.21037/atm-20-1921] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Background The removal of permanent internal fixation devices by secondary surgery could be avoided if these devices were made of degradable magnesium and magnesium alloys. Before such implants can be used clinically, however, the biological effect of magnesium exposure on surrounding bone must be evaluated. Previous studies have focused on bone formation; few have examined the effects of magnesium on the bone quality that affect many biomechanical properties. Methods Using bone quality parameters, we analyzed in vivo changes in bone properties and biomechanics after exposure to locally high levels of magnesium. Results Local bone mineralization was significantly disrupted following exposure to a porous rod of pure magnesium. Normal crystal formation and crystallinity were inhibited and the mineral-to-matrix ratio decreased. These results were consistent with those of in vitro experiments, in which high levels of magnesium inhibited mineral deposition by mesenchymal stem cells (MSCs) but increased alkaline phosphatase (ALP) expression. The same mineralization inhibition was observed around magnesium implants via micro-computerized tomography (micro-CT) and von Kossa staining. Such reduced bone quality around degrading magnesium rods could negatively impact bone biomechanics. Conclusions This study showed that exposure to the local high magnesium levels that arise from rapidly degrading magnesium devices may significantly disrupt bone mineralization and negatively impact bone biomechanics.
Collapse
Affiliation(s)
- Wenxiang Chu
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Orthopedic Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Tao Li
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Orthopaedics, Xinhua Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Gaozhi Jia
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Yongyun Chang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhiqing Liu
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jia Pei
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Degang Yu
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zanjing Zhai
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
5
|
The Role of Pref-1 during Adipogenic Differentiation: An Overview of Suggested Mechanisms. Int J Mol Sci 2020; 21:ijms21114104. [PMID: 32526833 PMCID: PMC7312882 DOI: 10.3390/ijms21114104] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/25/2020] [Accepted: 05/30/2020] [Indexed: 12/15/2022] Open
Abstract
Obesity contributes significantly to the global health burden. A better understanding of adipogenesis, the process of fat formation, may lead to the discovery of novel treatment strategies. However, it is of concern that the regulation of adipocyte differentiation has predominantly been studied using the murine 3T3-L1 preadipocyte cell line and murine experimental animal models. Translation of these findings to the human setting requires confirmation using experimental models of human origin. The ability of mesenchymal stromal/stem cells (MSCs) to differentiate into adipocytes is an attractive model to study adipogenesis in vitro. Differences in the ability of MSCs isolated from different sources to undergo adipogenic differentiation, may be useful in investigating elements responsible for regulating adipogenic differentiation potential. Genes involved may be divided into three broad categories: early, intermediate and late-stage regulators. Preadipocyte factor-1 (Pref-1) is an early negative regulator of adipogenic differentiation. In this review, we briefly discuss the adipogenic differentiation potential of MSCs derived from two different sources, namely adipose-derived stromal/stem cells (ASCs) and Wharton’s Jelly derived stromal/stem cells (WJSCs). We then discuss the function and suggested mechanisms of action of Pref-1 in regulating adipogenesis, as well as current findings regarding Pref-1’s role in human adipogenesis.
Collapse
|