1
|
Nguyen QT, Thanh LN, Hoang VT, Phan TTK, Heke M, Hoang DM. Bone Marrow-Derived Mononuclear Cells in the Treatment of Neurological Diseases: Knowns and Unknowns. Cell Mol Neurobiol 2023; 43:3211-3250. [PMID: 37356043 DOI: 10.1007/s10571-023-01377-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 06/14/2023] [Indexed: 06/27/2023]
Abstract
Bone marrow-derived mononuclear cells (BMMNCs) have been used for decades in preclinical and clinical studies to treat various neurological diseases. However, there is still a knowledge gap in the understanding of the underlying mechanisms of BMMNCs in the treatment of neurological diseases. In addition, prerequisite factors for the efficacy of BMMNC administration, such as the optimal route, dose, and number of administrations, remain unclear. In this review, we discuss known and unknown aspects of BMMNCs, including the cell harvesting, administration route and dose; mechanisms of action; and their applications in neurological diseases, including stroke, cerebral palsy, spinal cord injury, traumatic brain injury, amyotrophic lateral sclerosis, autism spectrum disorder, and epilepsy. Furthermore, recommendations on indications for BMMNC administration and the advantages and limitations of BMMNC applications for neurological diseases are discussed. BMMNCs in the treatment of neurological diseases. BMMNCs have been applied in several neurological diseases. Proposed mechanisms for the action of BMMNCs include homing, differentiation and paracrine effects (angiogenesis, neuroprotection, and anti-inflammation). Further studies should be performed to determine the optimal cell dose and administration route, the roles of BMMNC subtypes, and the indications for the use of BMMNCs in neurological conditions with and without genetic abnormalities.
Collapse
Affiliation(s)
- Quyen Thi Nguyen
- Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, 458 Minh Khai, Hai Ba Trung, Hanoi, 11622, Vietnam
| | - Liem Nguyen Thanh
- Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, 458 Minh Khai, Hai Ba Trung, Hanoi, 11622, Vietnam.
- College of Health Science, Vin University, Vinhomes Ocean Park, Gia Lam District, Hanoi, 12400, Vietnam.
- Vinmec International Hospital-Times City, Vinmec Healthcare System, 458 Minh Khai, Hanoi, 11622, Vietnam.
| | - Van T Hoang
- Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, 458 Minh Khai, Hai Ba Trung, Hanoi, 11622, Vietnam
| | - Trang T K Phan
- Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, 458 Minh Khai, Hai Ba Trung, Hanoi, 11622, Vietnam
| | - Michael Heke
- Department of Biology, Stanford University, Stanford, CA, USA
| | - Duc M Hoang
- Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, 458 Minh Khai, Hai Ba Trung, Hanoi, 11622, Vietnam
| |
Collapse
|
2
|
Hoang DM, Pham PT, Bach TQ, Ngo ATL, Nguyen QT, Phan TTK, Nguyen GH, Le PTT, Hoang VT, Forsyth NR, Heke M, Nguyen LT. Stem cell-based therapy for human diseases. Signal Transduct Target Ther 2022; 7:272. [PMID: 35933430 PMCID: PMC9357075 DOI: 10.1038/s41392-022-01134-4] [Citation(s) in RCA: 158] [Impact Index Per Article: 79.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 07/19/2022] [Accepted: 07/21/2022] [Indexed: 02/07/2023] Open
Abstract
Recent advancements in stem cell technology open a new door for patients suffering from diseases and disorders that have yet to be treated. Stem cell-based therapy, including human pluripotent stem cells (hPSCs) and multipotent mesenchymal stem cells (MSCs), has recently emerged as a key player in regenerative medicine. hPSCs are defined as self-renewable cell types conferring the ability to differentiate into various cellular phenotypes of the human body, including three germ layers. MSCs are multipotent progenitor cells possessing self-renewal ability (limited in vitro) and differentiation potential into mesenchymal lineages, according to the International Society for Cell and Gene Therapy (ISCT). This review provides an update on recent clinical applications using either hPSCs or MSCs derived from bone marrow (BM), adipose tissue (AT), or the umbilical cord (UC) for the treatment of human diseases, including neurological disorders, pulmonary dysfunctions, metabolic/endocrine-related diseases, reproductive disorders, skin burns, and cardiovascular conditions. Moreover, we discuss our own clinical trial experiences on targeted therapies using MSCs in a clinical setting, and we propose and discuss the MSC tissue origin concept and how MSC origin may contribute to the role of MSCs in downstream applications, with the ultimate objective of facilitating translational research in regenerative medicine into clinical applications. The mechanisms discussed here support the proposed hypothesis that BM-MSCs are potentially good candidates for brain and spinal cord injury treatment, AT-MSCs are potentially good candidates for reproductive disorder treatment and skin regeneration, and UC-MSCs are potentially good candidates for pulmonary disease and acute respiratory distress syndrome treatment.
Collapse
Affiliation(s)
- Duc M Hoang
- Department of Research and Development, Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam.
| | - Phuong T Pham
- Department of Cellular Therapy, Vinmec High-Tech Center, Vinmec Healthcare System, Hanoi, Vietnam
| | - Trung Q Bach
- Department of Research and Development, Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Anh T L Ngo
- Department of Cellular Therapy, Vinmec High-Tech Center, Vinmec Healthcare System, Hanoi, Vietnam
| | - Quyen T Nguyen
- Department of Research and Development, Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Trang T K Phan
- Department of Research and Development, Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Giang H Nguyen
- Department of Research and Development, Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Phuong T T Le
- Department of Research and Development, Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Van T Hoang
- Department of Research and Development, Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Nicholas R Forsyth
- Institute for Science & Technology in Medicine, Keele University, Keele, UK
| | - Michael Heke
- Department of Biology, Stanford University, Stanford, CA, USA
| | - Liem Thanh Nguyen
- Department of Research and Development, Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| |
Collapse
|
3
|
Nguyen Thanh L, Hoang VT, Le Thu H, Nguyen PAT, Hoang DM, Ngo DV, Cao Vu H, Nguyen Thi Bich V, Heke M. Human Umbilical Cord Mesenchymal Stem Cells for Severe Neurological Sequelae due to Anti- N-Methyl-d-Aspartate Receptor Encephalitis: First Case Report. Cell Transplant 2022; 31:9636897221110876. [PMID: 35815930 PMCID: PMC9277426 DOI: 10.1177/09636897221110876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 11/16/2022] Open
Abstract
Anti-N-methyl-d-aspartate (NMDA) receptor encephalitis is caused by altered patient immune reactions. This study reports the first patient with severe neurologic sequelae after NMDA receptor encephalitis treated with allogeneic umbilical cord-derived mesenchymal stem/stromal cells (UC-MSCs). A 5-year-old girl was diagnosed with NMDA receptor encephalitis and treated with immunosuppressive medicaments and intravenous immunoglobulin (IVIG). Despite intensive therapy, the patient's condition worsened so that allogenic UC-MSC therapy was contemplated. The patient received three intrathecal infusions of xeno- and serum-free cultured UC-MSCs at a dose of 106 cells/kg. At baseline and after each UC-MSC administration, the patient was examined by the German Coma Recovery Scale (CRS), the Gross Motor Function Classification System (GMFCS), the Gross Motor Function Measure-88 (GMFM-88), the Manual Ability Classification System (MACS), the Modified Ashworth Scale, and the Denver II test. Before cell therapy, she was in a permanent vegetative state with diffuse cerebral atrophy. Her cognition and motor functions improved progressively after three UC-MSC infusions. At the last visit, she was capable of walking, writing, and counting numbers. Control of urinary and bowel functions was completely recovered. Cerebral atrophy was reduced on brain magnetic resonance imaging (MRI). Overall, the outcomes of this patient suggest a potential cell therapy for autoimmune encephalitis and its neurological consequences.
Collapse
Affiliation(s)
- Liem Nguyen Thanh
- Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Health Care System, Hanoi, Vietnam.,College of Health Science, VinUniversity, Hanoi, Vietnam
| | - Van T Hoang
- Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Health Care System, Hanoi, Vietnam
| | | | | | - Duc M Hoang
- Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Health Care System, Hanoi, Vietnam
| | | | - Hung Cao Vu
- Vietnam National Children's Hospital, Hanoi, Vietnam
| | | | - Michael Heke
- Department of Biology, Stanford University, Stanford, CA, USA
| |
Collapse
|
4
|
Nguyen LT, Hoang DM, Nguyen KT, Bui DM, Nguyen HT, Le HTA, Hoang VT, Bui HTH, Dam PTM, Hoang XTA, Ngo ATL, Le HM, Phung NY, Vu DM, Duong TT, Nguyen TD, Ha LT, Bui HTP, Nguyen HK, Heke M, Bui AV. Type 2 diabetes mellitus duration and obesity alter the efficacy of autologously transplanted bone marrow-derived mesenchymal stem/stromal cells. Stem Cells Transl Med 2021; 10:1266-1278. [PMID: 34080789 PMCID: PMC8380443 DOI: 10.1002/sctm.20-0506] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [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: 11/14/2020] [Revised: 03/11/2021] [Accepted: 04/08/2021] [Indexed: 12/17/2022] Open
Abstract
Human bone marrow-derived mesenchymal stem/stromal cells (BM-MSCs) represent promising stem cell therapy for the treatment of type 2 diabetes mellitus (T2DM), but the results of autologous BM-MSC administration in T2DM patients are contradictory. The purpose of this study was to test the hypothesis that autologous BM-MSC administration in T2DM patient is safe and that the efficacy of the treatment is dependant on the quality of the autologous BM-MSC population and administration routes. T2DM patients were enrolled, randomly assigned (1:1) by a computer-based system into the intravenous and dorsal pancreatic arterial groups. The safety was assessed in all the treated patients, and the efficacy was evaluated based on the absolute changes in the hemoglobin A1c, fasting blood glucose, and C-peptide levels throughout the 12-month follow-up. Our data indicated that autologous BM-MSC administration was well tolerated in 30 T2DM patients. Short-term therapeutic effects were observed in patients with T2DM duration of <10 years and a body mass index <23, which is in line with the phenotypic analysis of the autologous BM-MSC population. T2DM duration directly altered the proliferation rate of BM-MSCs, abrogated the glycolysis and mitochondria respiration of BM-MSCs, and induced the accumulation of mitochondria DNA mutation. Our data suggest that autologous administration of BM-MSCs in the treatment of T2DM should be performed in patients with T2DM duration <10 years and no obesity. Prior to further confirming the effects of T2DM on BM-MSC biology, future work with a larger cohort focusing on patients with different T2DM history is needed to understand the mechanism underlying our observation.
Collapse
Affiliation(s)
- Liem Thanh Nguyen
- Department of Research and Development (R&D), Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Duc M Hoang
- Department of Research and Development (R&D), Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Kien T Nguyen
- Department of Research and Development (R&D), Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Duc M Bui
- Department of Internal Medicine, Vinmec Times City International Hospital, Hanoi, Vietnam
| | - Hieu T Nguyen
- Department of Research and Development (R&D), Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Hong T A Le
- Department of Research and Development (R&D), Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Van T Hoang
- Department of Research and Development (R&D), Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Hue T H Bui
- Department of Cellular Therapy, Vinmec High-Tech Center, Hanoi, Vietnam
| | - Phuong T M Dam
- Department of Cellular Therapy, Vinmec High-Tech Center, Hanoi, Vietnam
| | - Xuan T A Hoang
- Department of Research and Development (R&D), Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Anh T L Ngo
- Department of Research and Development (R&D), Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Hang M Le
- Department of Cellular Therapy, Vinmec High-Tech Center, Hanoi, Vietnam
| | - Nhi Y Phung
- Department of Cellular Therapy, Vinmec High-Tech Center, Hanoi, Vietnam
| | - Duc M Vu
- Department of Research and Development (R&D), Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Trung T Duong
- Department of Research and Development (R&D), Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Tu D Nguyen
- Department of Cellular Therapy, Vinmec High-Tech Center, Hanoi, Vietnam
| | - Lien T Ha
- Department of Medical Genetics, Vinmec High-Tech Center, Hanoi, Vietnam
| | - Hoa T P Bui
- Department of Medical Genetics, Vinmec High-Tech Center, Hanoi, Vietnam
| | - Hoa K Nguyen
- Department of Research and Development (R&D), Vinmec Research Institute of Stem Cell and Gene Technology, Vinmec Healthcare System, Hanoi, Vietnam
| | - Michael Heke
- Department of Biology, Stanford University, Stanford, California, USA
| | - Anh V Bui
- Department of Cellular Therapy, Vinmec High-Tech Center, Hanoi, Vietnam
| |
Collapse
|
5
|
Nguyen Thanh L, Nguyen H, Duy Ngo M, Bui VA, Dam PT, Thi Phuong Bui H, Van Ngo D, Tran KT, Thi Thanh Dang T, Duc Duong B, Anh Thi Nguyen P, Forstyth N, Heke M. In Reply. Stem Cells Transl Med 2021; 10:827-828. [PMID: 34010520 PMCID: PMC8133348 DOI: 10.1002/sctm.20-0452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/11/2020] [Accepted: 12/07/2020] [Indexed: 11/10/2022] Open
Affiliation(s)
- Liem Nguyen Thanh
- Vinmec Research Institute of Stem Cell and Gene Technology (VRISG)HanoiVietnam
| | - Hoang‐Phuong Nguyen
- Vinmec Research Institute of Stem Cell and Gene Technology (VRISG)HanoiVietnam
| | - Minh Duy Ngo
- Vinmec Times City International HospitalHanoiVietnam
| | - Viet Anh Bui
- Vinmec Hightech Center, Vinmec Health Care SystemHanoiVietnam
| | - Phuong T.M. Dam
- Vinmec Hightech Center, Vinmec Health Care SystemHanoiVietnam
| | | | - Doan Van Ngo
- Vinmec Times City International HospitalHanoiVietnam
| | - Kien Trung Tran
- Vinmec Research Institute of Stem Cell and Gene Technology (VRISG)HanoiVietnam
| | | | | | | | | | - Michael Heke
- Department of BiologyStanford UniversityStanfordCaliforniaUSA
| |
Collapse
|
6
|
Nguyen Thanh L, Nguyen HP, Ngo MD, Bui VA, Dam PTM, Bui HTP, Ngo DV, Tran KT, Dang TTT, Duong BD, Nguyen PAT, Forsyth N, Heke M. Outcomes of bone marrow mononuclear cell transplantation combined with interventional education for autism spectrum disorder. Stem Cells Transl Med 2020; 10:14-26. [PMID: 32902182 PMCID: PMC7780798 DOI: 10.1002/sctm.20-0102] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 03/13/2020] [Revised: 07/17/2020] [Accepted: 07/28/2020] [Indexed: 12/24/2022] Open
Abstract
The aim of this study was to evaluate the safety and efficacy of autologous bone marrow mononuclear cell transplantation combined with educational intervention for children with autism spectrum disorder. An open‐label clinical trial was performed from July 2017 to August 2019 at Vinmec International Hospital, Hanoi, Vietnam. Thirty children who fulfilled the autism criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, and had Childhood Autism Rating Scale (CARS) scores >37 were selected. Bone marrow was harvested by anterior iliac crest puncture under general anesthesia. The volume collected was as follows: 8 mL/kg for patients under 10 kg (80 mL + [body weight in kg − 10] × 7 mL) for patients above 10 kg. Mononuclear cells were isolated with a Ficoll gradient and then infused intrathecally. The same procedure was repeated 6 months later. After the first transplantation, all patients underwent 8 weeks of educational intervention based on the Early Start Denver Model. There were no severe adverse events associated with transplantation. The severity of autism spectrum disorder (ASD) was significantly reduced, with the median CARS score decreasing from 50 (range 40‐55.5) to 46.5 (range 33.5‐53.5) (P < .05). Adaptive capacity increased, with the median Vineland Adaptive Behavior Scales score rising from 53.5 to 60.5. Social communication, language, and daily skills improved markedly within 18 months after transplantation. Conversely, repetitive behaviors and hyperactivity decreased remarkably. Autologous bone marrow mononuclear cell transplantation in combination with behavioral intervention was safe and well tolerated in children with ASD (Trial registration: ClinicalTrials.gov identifier: NCT03225651).
Collapse
Affiliation(s)
- Liem Nguyen Thanh
- Vinmec Research Institute of Stem Cell and Gene Technology (VRISG), Hanoi, Vietnam
| | - Hoang-Phuong Nguyen
- Vinmec Research Institute of Stem Cell and Gene Technology (VRISG), Hanoi, Vietnam
| | - Minh Duy Ngo
- Vinmec Times City International Hospital, Hanoi, Vietnam
| | - Viet Anh Bui
- Vinmec Hightech Center, Vinmec Health Care System, Hanoi, Vietnam
| | - Phuong T M Dam
- Vinmec Hightech Center, Vinmec Health Care System, Hanoi, Vietnam
| | | | - Doan Van Ngo
- Vinmec Times City International Hospital, Hanoi, Vietnam
| | - Kien Trung Tran
- Vinmec Research Institute of Stem Cell and Gene Technology (VRISG), Hanoi, Vietnam
| | | | - Binh Duc Duong
- Vinmec Times City International Hospital, Hanoi, Vietnam
| | | | - Nicholas Forsyth
- Faculty of Medicine & Health Sciences, Keele University, Newcastle, UK
| | - Michael Heke
- Department of Biology, Stanford University, Stanford, California, USA
| |
Collapse
|
7
|
Liem NT, Chinh VD, Phuong DTM, Van Doan N, Forsyth NR, Heke M, Thi PAN, Nguyen XH. Outcomes of Bone Marrow-Derived Mononuclear Cell Transplantation for Patients in Persistent Vegetative State After Drowning: Report of Five Cases. Front Pediatr 2020; 8:564. [PMID: 33014944 PMCID: PMC7511512 DOI: 10.3389/fped.2020.00564] [Citation(s) in RCA: 4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 08/03/2020] [Indexed: 11/13/2022] Open
Abstract
Aim: Anoxic brain injury (ABI) due to non-fatal drowning may cause persistent vegetative state (VS) that is currently incurable. The aim of this paper is to present the safety and feasibility of autologous bone marrow-derived mononuclear cell (BMMNC) transplantation in five drowning children surviving in persistent VS. Methods: We used BMMNC as a novel candidate therapeutic tool in a pilot phase-I study for five patients affected by neurological sequelae after near-death drowning. Autologous BMMNCs were freshly isolated using Ficoll gradient centrifugation then infused intrathecally to five patients. The number of transplantation varied from two to four times depending on the motor function improvement of patient after transplantation. Clinical therapeutic effects were evaluated using gross motor function measure and muscle spasticity rating scales, cognitive assessments, and brain MRI before and after cell administrations. Results: Six months after BMMNC transplantation, no serious complications or adverse events were reported. All five patients displayed improvement across the major parameters of gross motor function, cognition, and muscle spasticity. Three patients displayed improved communication including the expression of words. In particular, one patient remarkably reduced cerebral atrophy, with nearly normal cerebral parenchyma after BMMNC transplantation. Conclusions: Autologous BMMNC transplantation for the treatment of children in persistent VS after drowning is safe, feasible, and can potentially improve motor function and cognition and reduce muscle spasticity. These results pave the way for a future phase II clinical trial to evaluate the efficacy of the therapy.
Collapse
Affiliation(s)
- Nguyen Thanh Liem
- Vinmec Research Institute of Stem Cell and Gene Technology (VRISG), Vinmec Health Care System, Hanoi, Vietnam.,College of Health Sciences, VinUniversity, Hanoi, Vietnam
| | - Vu Duy Chinh
- Vinmec Times City International Hospital, Vinmec Healthcare System, Hanoi, Vietnam
| | - Dam Thi Minh Phuong
- Vinmec Research Institute of Stem Cell and Gene Technology (VRISG), Vinmec Health Care System, Hanoi, Vietnam.,College of Health Sciences, VinUniversity, Hanoi, Vietnam
| | - Ngo Van Doan
- Vinmec Times City International Hospital, Vinmec Healthcare System, Hanoi, Vietnam
| | - Nicholas R Forsyth
- Institute for Science & Technology in Medicine, Keele University, Keele, United Kingdom
| | - Michael Heke
- Department of Biology, Stanford University, Stanford, CA, United States
| | | | - Xuan-Hung Nguyen
- Vinmec Research Institute of Stem Cell and Gene Technology (VRISG), Vinmec Health Care System, Hanoi, Vietnam.,College of Health Sciences, VinUniversity, Hanoi, Vietnam
| |
Collapse
|
8
|
Assmann A, Heke M, Kröpil P, Ptok L, Hafner D, Ohmann C, Martens A, Karluß A, Emmert MY, Kutschka I, Sievers HH, Klein HM. Laser-supported CD133+ cell therapy in patients with ischemic cardiomyopathy: initial results from a prospective phase I multicenter trial. PLoS One 2014; 9:e101449. [PMID: 25000346 PMCID: PMC4084817 DOI: 10.1371/journal.pone.0101449] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 06/03/2014] [Indexed: 11/30/2022] Open
Abstract
Objectives This study evaluates the safety, principal feasibility and restoration potential of laser-supported CD133+ intramyocardial cell transplantation in patients with ischemic cardiomyopathy. Methods Forty-two patients with severe ischemic cardiomyopathy (left ventricular ejection fraction (LVEF) >15% and <35%) were included in this prospective multicenter phase I trial. They underwent coronary artery bypass grafting (CABG) with subsequent transepicardial low-energy laser treatment and autologous CD133+ cell transplantation, and were followed up for 12 months. To evaluate segmental myocardial contractility as well as perfusion and to identify the areas of scar tissue, cardiac MRI was performed at 6 months and compared to the preoperative baseline. In addition, clinical assessment comprising of CCS scoring, blood and physical examination was performed at 3, 6 and 12 months, respectively. Results Intraoperative cell isolation resulted in a mean cell count of 9.7±1.2×106. Laser treatment and subsequent CD133+ cell therapy were successfully and safely carried out in all patients and no procedure-related complications occurred. At 6 months, the LVEF was significantly increased (29.7±1.9% versus 24.6±1.5% with p = 0.004). In addition, freedom from angina was achieved, and quality of life significantly improved after therapy (p<0.0001). Interestingly, an extended area of transmural delayed enhancement (>3 myocardial segments) determined in the preoperative MRI was inversely correlated with a LVEF increase after laser-supported cell therapy (p = 0.024). Conclusions This multicenter trial demonstrates that laser-supported CD133+ cell transplantation is safe and feasible in patients with ischemic cardiomyopathy undergoing CABG, and in most cases, it appears to significantly improve the myocardial function. Importantly, our data show that the beneficial effect was significantly related to the extent of transmural delayed enhancement, suggesting that MRI-guided selection of patients is mandatory to ensure the effectiveness of the therapy. Trial Registration: EudraCT 2005-004051-35) Controlled-Trials.com ISRCTN49998633
Collapse
Affiliation(s)
- Alexander Assmann
- Department of Cardiovascular Surgery, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany
- Research Group for Experimental Surgery, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Michael Heke
- Department of Cardiovascular Surgery, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany
- Research Group for Experimental Surgery, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany
| | - Patric Kröpil
- Department of Diagnostic and Interventional Radiology, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany
| | - Lena Ptok
- Department of Cardiovascular Surgery, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany
| | - Dieter Hafner
- Institute of Pharmacology and Clinical Pharmacology, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany
| | - Christian Ohmann
- Coordination Centre for Clinical Trials, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany
| | - Andreas Martens
- Clinic for Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Antje Karluß
- Department of Cardiac and Thoracic Vascular Surgery, University Hospital of Schleswig-Holstein, Luebeck, Germany
| | - Maximilian Y. Emmert
- Clinic for Cardiac and Vascular Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Ingo Kutschka
- Clinic for Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Hans-Hinrich Sievers
- Department of Cardiac and Thoracic Vascular Surgery, University Hospital of Schleswig-Holstein, Luebeck, Germany
| | - Hans-Michael Klein
- Department of Cardiovascular Surgery, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany
- * E-mail:
| |
Collapse
|
9
|
Klein HM, Assmann A, Heke M. Addendum to 'Intraoperative CD133+ cell transplantation during coronary artery bypass grafting in ischemic cardiomyopathy'†. Multimed Man Cardiothorac Surg 2014; 2014:mmu011. [PMID: 24994660 DOI: 10.1093/mmcts/mmu011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hans-Michael Klein
- Department of Cardiovascular Surgery, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany
| | - Alexander Assmann
- Department of Cardiovascular Surgery, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany Research Group for Experimental Surgery, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany
| | - Michael Heke
- Department of Cardiovascular Surgery, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany Research Group for Experimental Surgery, Heinrich Heine University, Medical Faculty, Duesseldorf, Germany
| |
Collapse
|
10
|
Maxhera B, Schalis P, Saeed D, Heke M, Godehardt E, Klein HM. Metformin ingestion prior to cardiac surgery with cardiopulmonary bypass: Effects on lactate homeostasis and outcome. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
11
|
Krug AK, Kolde R, Gaspar JA, Rempel E, Balmer NV, Meganathan K, Vojnits K, Baquié M, Waldmann T, Ensenat-Waser R, Jagtap S, Evans RM, Julien S, Peterson H, Zagoura D, Kadereit S, Gerhard D, Sotiriadou I, Heke M, Natarajan K, Henry M, Winkler J, Marchan R, Stoppini L, Bosgra S, Westerhout J, Verwei M, Vilo J, Kortenkamp A, Hescheler J, Hothorn L, Bremer S, van Thriel C, Krause KH, Hengstler JG, Rahnenführer J, Leist M, Sachinidis A. Human embryonic stem cell-derived test systems for developmental neurotoxicity: a transcriptomics approach. Arch Toxicol 2012. [PMID: 23179753 PMCID: PMC3535399 DOI: 10.1007/s00204-012-0967-3] [Citation(s) in RCA: 181] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Developmental neurotoxicity (DNT) and many forms of reproductive toxicity (RT) often manifest themselves in functional deficits that are not necessarily based on cell death, but rather on minor changes relating to cell differentiation or communication. The fields of DNT/RT would greatly benefit from in vitro tests that allow the identification of toxicant-induced changes of the cellular proteostasis, or of its underlying transcriptome network. Therefore, the ‘human embryonic stem cell (hESC)-derived novel alternative test systems (ESNATS)’ European commission research project established RT tests based on defined differentiation protocols of hESC and their progeny. Valproic acid (VPA) and methylmercury (MeHg) were used as positive control compounds to address the following fundamental questions: (1) Does transcriptome analysis allow discrimination of the two compounds? (2) How does analysis of enriched transcription factor binding sites (TFBS) and of individual probe sets (PS) distinguish between test systems? (3) Can batch effects be controlled? (4) How many DNA microarrays are needed? (5) Is the highest non-cytotoxic concentration optimal and relevant for the study of transcriptome changes? VPA triggered vast transcriptional changes, whereas MeHg altered fewer transcripts. To attenuate batch effects, analysis has been focused on the 500 PS with highest variability. The test systems differed significantly in their responses (<20 % overlap). Moreover, within one test system, little overlap between the PS changed by the two compounds has been observed. However, using TFBS enrichment, a relatively large ‘common response’ to VPA and MeHg could be distinguished from ‘compound-specific’ responses. In conclusion, the ESNATS assay battery allows classification of human DNT/RT toxicants on the basis of their transcriptome profiles.
Collapse
Affiliation(s)
- Anne K. Krug
- Department of Biology, University of Konstanz (UKN), 78457 Constance, Germany
| | - Raivo Kolde
- OÜ Quretec (Qure), Limited Liability Company, 51003 Tartu, Estonia
- Institute of Computer Science, University of Tartu, 50409 Tartu, Estonia
| | - John A. Gaspar
- Center of Physiology and Pathophysiology, Institute of Neurophysiology, University of Cologne (UKK), Robert-Koch-Str. 39, 50931 Cologne, Germany
| | - Eugen Rempel
- Department of Statistics, TU Dortmund University , 44221 Dortmund, Germany
| | - Nina V. Balmer
- Department of Biology, University of Konstanz (UKN), 78457 Constance, Germany
| | - Kesavan Meganathan
- Center of Physiology and Pathophysiology, Institute of Neurophysiology, University of Cologne (UKK), Robert-Koch-Str. 39, 50931 Cologne, Germany
| | - Kinga Vojnits
- Commission of the European Communities (JRC) Joint Research Centre, 1049 Brussels, Belgium
| | - Mathurin Baquié
- Department of Pathology and Immunology, Geneva Medical Faculty, University of Geneva (UNIGE), 1211 Geneva 4, Switzerland
| | - Tanja Waldmann
- Department of Biology, University of Konstanz (UKN), 78457 Constance, Germany
| | - Roberto Ensenat-Waser
- Commission of the European Communities (JRC) Joint Research Centre, 1049 Brussels, Belgium
| | - Smita Jagtap
- Center of Physiology and Pathophysiology, Institute of Neurophysiology, University of Cologne (UKK), Robert-Koch-Str. 39, 50931 Cologne, Germany
| | | | - Stephanie Julien
- Department of Pathology and Immunology, Geneva Medical Faculty, University of Geneva (UNIGE), 1211 Geneva 4, Switzerland
| | - Hedi Peterson
- Department of Pathology and Immunology, Geneva Medical Faculty, University of Geneva (UNIGE), 1211 Geneva 4, Switzerland
| | - Dimitra Zagoura
- Commission of the European Communities (JRC) Joint Research Centre, 1049 Brussels, Belgium
| | - Suzanne Kadereit
- Department of Biology, University of Konstanz (UKN), 78457 Constance, Germany
| | - Daniel Gerhard
- Gottfried Wilhelm Leibniz University (LUH), Institute for Biostatistics, 30167 Hannover, Germany
| | - Isaia Sotiriadou
- Center of Physiology and Pathophysiology, Institute of Neurophysiology, University of Cologne (UKK), Robert-Koch-Str. 39, 50931 Cologne, Germany
| | - Michael Heke
- Center of Physiology and Pathophysiology, Institute of Neurophysiology, University of Cologne (UKK), Robert-Koch-Str. 39, 50931 Cologne, Germany
| | - Karthick Natarajan
- Center of Physiology and Pathophysiology, Institute of Neurophysiology, University of Cologne (UKK), Robert-Koch-Str. 39, 50931 Cologne, Germany
| | - Margit Henry
- Center of Physiology and Pathophysiology, Institute of Neurophysiology, University of Cologne (UKK), Robert-Koch-Str. 39, 50931 Cologne, Germany
| | - Johannes Winkler
- Center of Physiology and Pathophysiology, Institute of Neurophysiology, University of Cologne (UKK), Robert-Koch-Str. 39, 50931 Cologne, Germany
| | - Rosemarie Marchan
- Leibniz Research Centre for Working Environment and Human Factors (IfADo), Technical University of Dortmund, 44139 Dortmund, Germany
| | - Luc Stoppini
- Department of Pathology and Immunology, Geneva Medical Faculty, University of Geneva (UNIGE), 1211 Geneva 4, Switzerland
| | - Sieto Bosgra
- Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek (TNO), 2628 VK Delft, The Netherlands
| | - Joost Westerhout
- Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek (TNO), 2628 VK Delft, The Netherlands
| | - Miriam Verwei
- Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek (TNO), 2628 VK Delft, The Netherlands
| | - Jaak Vilo
- OÜ Quretec (Qure), Limited Liability Company, 51003 Tartu, Estonia
- Institute of Computer Science, University of Tartu, 50409 Tartu, Estonia
| | | | - Jürgen Hescheler
- Center of Physiology and Pathophysiology, Institute of Neurophysiology, University of Cologne (UKK), Robert-Koch-Str. 39, 50931 Cologne, Germany
| | - Ludwig Hothorn
- Gottfried Wilhelm Leibniz University (LUH), Institute for Biostatistics, 30167 Hannover, Germany
| | - Susanne Bremer
- Commission of the European Communities (JRC) Joint Research Centre, 1049 Brussels, Belgium
| | - Christoph van Thriel
- Leibniz Research Centre for Working Environment and Human Factors (IfADo), Technical University of Dortmund, 44139 Dortmund, Germany
| | - Karl-Heinz Krause
- Department of Pathology and Immunology, Geneva Medical Faculty, University of Geneva (UNIGE), 1211 Geneva 4, Switzerland
| | - Jan G. Hengstler
- Leibniz Research Centre for Working Environment and Human Factors (IfADo), Technical University of Dortmund, 44139 Dortmund, Germany
| | - Jörg Rahnenführer
- Department of Statistics, TU Dortmund University , 44221 Dortmund, Germany
| | - Marcel Leist
- Department of Biology, University of Konstanz (UKN), 78457 Constance, Germany
| | - Agapios Sachinidis
- Center of Physiology and Pathophysiology, Institute of Neurophysiology, University of Cologne (UKK), Robert-Koch-Str. 39, 50931 Cologne, Germany
| |
Collapse
|
12
|
Klein HM, Assmann A, Lichtenberg A, Heke M. Intraoperative CD133+ cell transplantation during coronary artery bypass grafting in ischemic cardiomyopathy. Multimed Man Cardiothorac Surg 2010; 2010:mmcts.2009.003947. [PMID: 24413679 DOI: 10.1510/mmcts.2009.003947] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
If traditional treatment of coronary artery disease has failed, intramyocardial transplantation of CD133+ stem cells with the potential to improve myocardial function is an alternative approach to treating ischemic cardiomyopathy. The INSTEM trial aims at evaluating safety and feasibility of isolation and subsequent intramyocardial transplantation of CD133+ cells in combination with coronary artery bypass grafting (CABG). Patients suffering from severe ischemic cardiomyopathy (ejection fraction ≫15% and ≪35%) are enrolled in this trial. Bone marrow is harvested from the iliac crest and CD133+ cells are purified up to 99%. The myocardial region of interest is pre-treated by transmyocardial laser revascularization in order to trigger homing of transplanted cells. Autologous bone marrow CD133+ cells (up to 30×10(6) cells) are injected into predefined myocardial regions. Cardiac function prior to as well as three, six and 12 months after cell transplantation is assessed by echocardiography. Neither operative mortalities nor any cardiac deaths during follow-up occurred. Left ventricular ejection fraction improved from 25%±5% preoperatively to 40%±8% after six months. Our method of intraoperative CD133+ cell isolation while performing CABG and subsequent transmyocardial cell transplantation is feasible and safe. Although the follow-up has not yet been completed we propose this procedure to be a promising causal therapy of severe ischemic cardiomyopathy.
Collapse
Affiliation(s)
- Hans Michael Klein
- Clinic for Cardiovascular Surgery, Heinrich-Heine-University Medical School, Moorenstrasse 5, 40225 Duesseldorf, Germany
| | | | | | | |
Collapse
|
13
|
Suárez-Fariñas M, Noggle S, Heke M, Hemmati-Brivanlou A, Magnasco MO. Comparing independent microarray studies: the case of human embryonic stem cells. BMC Genomics 2005; 6:99. [PMID: 16042783 PMCID: PMC1183205 DOI: 10.1186/1471-2164-6-99] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2005] [Accepted: 07/22/2005] [Indexed: 11/10/2022] Open
Abstract
Background Microarray studies of the same phenomenon in different labs often appear at variance because the published lists of regulated transcripts have disproportionately small intersections. We demonstrate that comparing studies by intersecting lists in this manner is methodologically flawed by reanalyzing three studies of the molecular signature of "stemness" in human embryonic stem cells. There are only 7 genes common to all three published lists, suggesting disagreement. Results Carefully reanalyzing all three together from the raw data we detect 111 genes upregulated and 95 downregulated in all three studies. The upregulated list was subject to rtRTPCR analysis and 75% of the genes were confirmed. Conclusion Our findings show that the three studies have a substantial core of common genes, which is missed if only the published lists are examined. Combined analysis of multiple experiments can be a powerful way to distil coherent conclusions.
Collapse
Affiliation(s)
- Mayte Suárez-Fariñas
- Center for Studies in Physics and Biology, The Rockefeller University. 1230 York Ave, Box 212, New York, NY 10021, U.S.A
| | - Scott Noggle
- Department Laboratory of Molecular Vertebrate Embryology, Camridge, The Rockefeller University. 1230 York Ave, Box 32, New York, NY 10021, U.S.A
| | - Michael Heke
- Department Laboratory of Molecular Vertebrate Embryology, Camridge, The Rockefeller University. 1230 York Ave, Box 32, New York, NY 10021, U.S.A
| | - Ali Hemmati-Brivanlou
- Department Laboratory of Molecular Vertebrate Embryology, Camridge, The Rockefeller University. 1230 York Ave, Box 32, New York, NY 10021, U.S.A
| | - Marcelo O Magnasco
- Center for Studies in Physics and Biology, The Rockefeller University. 1230 York Ave, Box 212, New York, NY 10021, U.S.A
| |
Collapse
|
14
|
Boettner B, Harjes P, Ishimaru S, Heke M, Fan HQ, Qin Y, Van Aelst L, Gaul U. The AF-6 Homolog Canoe Acts as a Rap1 Effector During Dorsal Closure of the Drosophila Embryo. Genetics 2003; 165:159-69. [PMID: 14504224 PMCID: PMC1462758 DOI: 10.1093/genetics/165.1.159] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Rap1 belongs to the highly conserved Ras subfamily of small GTPases. In Drosophila, Rap1 plays a critical role in many different morphogenetic processes, but the molecular mechanisms executing its function are unknown. Here, we demonstrate that Canoe (Cno), the Drosophila homolog of mammalian junctional protein AF-6, acts as an effector of Rap1 in vivo. Cno binds to the activated form of Rap1 in a yeast two-hybrid assay, the two molecules colocalize to the adherens junction, and they display very similar phenotypes in embryonic dorsal closure (DC), a process that relies on the elongation and migration of epithelial cell sheets. Genetic interaction experiments show that Rap1 and Cno act in the same molecular pathway during DC and that the function of both molecules in DC depends on their ability to interact. We further show that Rap1 acts upstream of Cno, but that Rap1, unlike Cno, is not involved in the stimulation of JNK pathway activity, indicating that Cno has both a Rap1-dependent and a Rap1-independent function in the DC process.
Collapse
Affiliation(s)
- Benjamin Boettner
- Laboratory of Developmental Neurogenetics, Rockefeller University, New York, New York 10021, USA
| | | | | | | | | | | | | | | |
Collapse
|
15
|
Abstract
The molecular mechanism underlying pluripotency is largely unknown. Here, we provide the first global transcriptional profile of the state of "stemness" in human embryonic stem cells (HESCs). We have identified a set of 918 genes enriched in undifferentiated HESCs compared with their differentiated counterparts. These include ligand/receptor pairs and secreted inhibitors of the FGF, TGFbeta/BMP, and Wnt pathways, highlighting a prevalent role for these pathways in HESCs. Importantly, a significant number of HESCs-enriched genes, including several signaling components, are found to be intersected with published mouse embryonic stem cell data, indicating that a "core molecular program" is shared between the two pluripotent stem cells.
Collapse
Affiliation(s)
- Noboru Sato
- Laboratory of Vertebrate Molecular Embryology, The Rockefeller University, 1230, York Avenue, New York, NY 10021, USA
| | | | | | | | | | | |
Collapse
|
16
|
Altmann CR, Chang C, Muñoz-Sanjuán I, Bell E, Heke M, Rifkin DB, Brivanlou AH. The latent-TGFbeta-binding-protein-1 (LTBP-1) is expressed in the organizer and regulates nodal and activin signaling. Dev Biol 2002; 248:118-27. [PMID: 12142025 DOI: 10.1006/dbio.2002.0716] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The latent TGF-beta binding proteins (LTBP) are believed to control the availability of TGF-beta in the extracellular milieu. To gain insight into the potential roles of LTBP in early development, we isolated the Xenopus LTBP-1 (xLTBP-1) cDNA. The cDNA encodes a protein similar to the mammalian LTBP-1 in both size and domain structure. In addition, we found a novel longer splice isoform of xLTBP. The RNAs for both forms of xLTBP displayed temporal regulation and the shorter transcript is expressed maternally. Both transcripts also display spatial regulation and are found in the dorsal mesoderm of the organizer. In animal cap experiments, LTBP-1 potentiates the activity of activin and nodal. The activity of LTBP-1 did not appear to require covalent association with activin as the addition of medium containing activin and LTBP-1 to animal caps enhanced the activin effect. These results indicate that LTBP-1 may be part of the regulatory system that establishes the threshold of morphogen activity for activins and nodals in the dorsal side of the embryo during gastrulation.
Collapse
Affiliation(s)
- Curtis R Altmann
- Laboratory of Molecular Embryology, The Rockefeller University, 1230 York Avenue, New York, NY 10021, USA
| | | | | | | | | | | | | |
Collapse
|
17
|
Kauschke SG, Knorr A, Heke M, Kohlmeyer J, Schauer M, Theiss G, Waehler R, Burchardt ER. Two assays for measuring fibrosis: reverse transcriptase-polymerase chain reaction of collagen alpha(1) (III) mRNA is an early predictor of subsequent collagen deposition while a novel serum N-terminal procollagen (III) propeptide assay reflects manifest fibrosis in carbon tetrachloride-treated rats. Anal Biochem 1999; 275:131-40. [PMID: 10552896 DOI: 10.1006/abio.1999.4316] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Using a novel quantitative reverse transcriptase-polymerase chain reaction assay, we have determined the amount of specific mRNA for procollagen alpha(1) (III) (PIIIP) in the carbon tetrachloride (CCl(4)) model of liver fibrosis in rats. After a single week of CCl(4) application, the amount of PIIIP mRNA was increased approximately 10 times over the untreated control group and continued to increase to approximately 30 times after 7 weeks of intoxication. In this model substantial fibrosis was demonstrated by computer-aided morphometry after 5 to 7 weeks of treatment. Using recombinant murine N-terminal procollagen alpha(1) (III) propeptide (PIIINP), a novel sensitive immunoassay for the measurement of circulating PIIINP in rodent sera was established. An increase in PIIINP serum levels was observed after 5 to 7 weeks of CCl(4) intoxication. Our results suggest PIIIP gene expression is an early marker of tissue fibrosis. Early PIIIP gene expression is correlated with the extent of the subsequent fibrosis. PIIIP mRNA levels increase much earlier than conventional histological examination or PIIINP levels. PIIINP measurements with our new serum assay, on the other hand, are a good noninvasive marker of manifest fibrosis but are a poor marker of fibrogenesis.
Collapse
Affiliation(s)
- S G Kauschke
- Pharmaceutical Research Center, Bayer AG, Wuppertal, D-42096, Germany
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Burchardt ER, Heke M, Kauschke SG, Harjes P, Kohlmeyer J, Kroll W, Schauer M, Schroeder W, Voelker M. Epitope-specific monoclonal antibodies against human C-terminal procollagen alpha1(III)-propeptide. Matrix Biol 1998; 17:673-7. [PMID: 9923660 DOI: 10.1016/s0945-053x(98)90118-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
We have generated monoclonal antibodies against recombinant C-terminal human procollagen alpha1(III) propeptide (PIIICP), produced in E. coli in high yields. The monoclonal antibodies were screened for epitope specificity using recombinant truncated PIIICP. Several antibodies were identified which recognized different regions of the PIIICP molecule. The ability of the antibodies to detect PIIICP antigens in human cell line lysates and supernatants was demonstrated. As PIIICP antigens are a key marker of extracellular matrix metabolism, the monoclonal antibodies described here should be of value for clinical and basic research.
Collapse
Affiliation(s)
- E R Burchardt
- Institute for Cardiovascular Research, Pharmaceutical Research Center, Bayer AG, Wuppertal, Germany
| | | | | | | | | | | | | | | | | |
Collapse
|