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Park J, Soh H, Jo S, Weon S, Lee SH, Park JA, Lee MK, Kim TH, Sung IH, Lee JK. Scaffold-induced compression enhances ligamentization potential of decellularized tendon graft reseeded with ACL-derived cells. iScience 2023; 26:108521. [PMID: 38162024 PMCID: PMC10755058 DOI: 10.1016/j.isci.2023.108521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 11/13/2023] [Accepted: 11/20/2023] [Indexed: 01/03/2024] Open
Abstract
Anterior cruciate ligament (ACL) reconstruction is often performed using a tendon graft. However, the predominant synthesis of fibrotic scar tissue (type III collagen) occurs during the healing process of the tendon graft, resulting in a significantly lower mechanical strength than that of normal ACL tissue. In this study, ACL-derived cells were reseeded to the tendon graft, and scaffold-induced compression was applied to test whether the compressive force results in superior cell survival and integration. Given nanofiber polycaprolactone (PCL) scaffold-induced compression, ACL-derived cells reseeded to a tendon graft demonstrated superior cell survival and integration and resulted in higher gene expression levels of type I collagen compared to non-compressed cell-allograft composites in vitro. Translocation of Yes-associated protein (YAP) into the nucleus was correlated with higher expression of type I collagen in the compression group. These data support the hypothesis of a potential role of mechanotransduction in the ligamentization process.
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Affiliation(s)
- Jinsung Park
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Hyunsoo Soh
- Department of Orthopaedic Surgery, Hanyang University Hospital, Seoul, Republic of Korea
| | - Sungsin Jo
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Subin Weon
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Seung Hoon Lee
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Jeong-Ah Park
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Myung-Kyu Lee
- Department of Research and Development, Korea Public Tissue Bank, Seongnam-si, Gyeonggi-do, Korea
| | - Tae-Hwan Kim
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Disease, Seoul, Republic of Korea
| | - Il-Hoon Sung
- Department of Orthopaedic Surgery, Hanyang University Hospital, Seoul, Republic of Korea
| | - Jin Kyu Lee
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
- Department of Orthopaedic Surgery, Hanyang University Hospital, Seoul, Republic of Korea
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Park J, Jo S, Lee MK, Kim TH, Sung IH, Lee JK. Comparison of ligamentization potential between anterior cruciate ligament-derived cells and adipose-derived mesenchymal stem cells reseeded to acellularized tendon allograft. Bone Joint Res 2022; 11:777-786. [PMID: 36342052 PMCID: PMC9680201 DOI: 10.1302/2046-3758.1111.bjr-2021-0548.r2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
AIMS To test the hypothesis that reseeded anterior cruciate ligament (ACL)-derived cells have a better ability to survive and integrate into tendon extracellular matrix (ECM) and accelerate the ligamentization process, compared to adipose-derived mesenchymal stem cells (ADMSCs). METHODS Acellularized tibialis allograft tendons were used. Tendons were randomly reseeded with ACL-derived cells or ADMSCs. ACL-derived cells were harvested and isolated from remnants of ruptured ACLs during reconstruction surgery and cultured at passage three. Cell suspensions (200 µl) containing 2 × 106 ACL-derived cells or ADMSCs were prepared for the purpose of reseeding. At days 1, 3, and 7 post-reseeding, graft composites were assessed for repopulation with histological and immunohistochemical analysis. Matrix protein contents and gene expression levels were analyzed. RESULTS In the graft reseeded with ACL-derived cells, a large number of elongated cells that integrated into the matrix were evident at day 3 and day 7. However, in the graft reseeded with ADMSCs, only a small number of elongated cells were found integrated into the matrix. Immunofluorescence for Ki-67 and type I collagen confirmed the pronounced production of type I collagen by Ki-67-positive ACL-derived cells integrated into the ECM. A messenger RNA (mRNA) expression assay demonstrated significantly higher gene expression levels of types I (p = 0.013) and III (p = 0.050) collagen in the composites reseeded with ACL-derived cells than ADMSCs. CONCLUSION ACL-derived cells, when reseeded to acellularized tendon graft, demonstrated earlier better survival and integration in the tendon ECM and resulted in higher gene expression levels of collagen, which may be essential to the normal ligamentization process compared to ADMSCs.Cite this article: Bone Joint Res 2022;11(11):777-786.
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Affiliation(s)
- Jinsung Park
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, South Korea
- Department of Translational Medicine, Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea
| | - Sungsin Jo
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, South Korea
| | - Myung-Kyu Lee
- Department of Research and Development, Korea Public Tissue Bank, Seongnam-si, South Korea
| | - Tae-Hwan Kim
- Hanyang University Institute for Rheumatology Research (HYIRR), Seoul, South Korea
- Department of Translational Medicine, Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul, South Korea
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, South Korea
| | - Il-Hoon Sung
- Department of Orthopaedic Surgery, Hanyang University Hospital, Seoul, South Korea
| | - Jin K. Lee
- Department of Orthopaedic Surgery, Hanyang University Hospital, Seoul, South Korea
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Buchfellner A, Yurlova L, Nüske S, Scholz AM, Bogner J, Ruf B, Zolghadr K, Drexler SE, Drexler GA, Girst S, Greubel C, Reindl J, Siebenwirth C, Romer T, Friedl AA, Rothbauer U. A New Nanobody-Based Biosensor to Study Endogenous PARP1 In Vitro and in Live Human Cells. PLoS One 2016; 11:e0151041. [PMID: 26950694 PMCID: PMC4780744 DOI: 10.1371/journal.pone.0151041] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 02/23/2016] [Indexed: 11/22/2022] Open
Abstract
Poly(ADP-ribose) polymerase 1 (PARP1) is a key player in DNA repair, genomic stability and cell survival and it emerges as a highly relevant target for cancer therapies. To deepen our understanding of PARP biology and mechanisms of action of PARP1-targeting anti-cancer compounds, we generated a novel PARP1-affinity reagent, active both in vitro and in live cells. This PARP1-biosensor is based on a PARP1-specific single-domain antibody fragment (~ 15 kDa), termed nanobody, which recognizes the N-terminus of human PARP1 with nanomolar affinity. In proteomic approaches, immobilized PARP1 nanobody facilitates quantitative immunoprecipitation of functional, endogenous PARP1 from cellular lysates. For cellular studies, we engineered an intracellularly functional PARP1 chromobody by combining the nanobody coding sequence with a fluorescent protein sequence. By following the chromobody signal, we were for the first time able to monitor the recruitment of endogenous PARP1 to DNA damage sites in live cells. Moreover, tracing of the sub-nuclear translocation of the chromobody signal upon treatment of human cells with chemical substances enables real-time profiling of active compounds in high content imaging. Due to its ability to perform as a biosensor at the endogenous level of the PARP1 enzyme, the novel PARP1 nanobody is a unique and versatile tool for basic and applied studies of PARP1 biology and DNA repair.
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Affiliation(s)
| | | | - Stefan Nüske
- Livestock Center of the Faculty of Veterinary Medicine, Ludwig Maximilians University, Munich, Germany
| | - Armin M. Scholz
- Livestock Center of the Faculty of Veterinary Medicine, Ludwig Maximilians University, Munich, Germany
| | | | - Benjamin Ruf
- ChromoTek GmbH, IZB, Planegg, Martinsried, Germany
| | | | - Sophie E. Drexler
- Department of Radiation Oncology, Ludwig Maximilians University, Munich, Germany
| | - Guido A. Drexler
- Department of Radiation Oncology, Ludwig Maximilians University, Munich, Germany
| | - Stefanie Girst
- Institute for Applied Physics and Metrology, Bundeswehr University Munich, Neubiberg, Germany
| | - Christoph Greubel
- Institute for Applied Physics and Metrology, Bundeswehr University Munich, Neubiberg, Germany
| | - Judith Reindl
- Institute for Applied Physics and Metrology, Bundeswehr University Munich, Neubiberg, Germany
| | - Christian Siebenwirth
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Tina Romer
- ChromoTek GmbH, IZB, Planegg, Martinsried, Germany
- * E-mail:
| | - Anna A. Friedl
- Department of Radiation Oncology, Ludwig Maximilians University, Munich, Germany
- Clinical Cooperation Group ‘Personalized Radiotherapy of Head and Neck Cancer’, Helmholtz Center Munich, Neuherberg, Germany
| | - Ulrich Rothbauer
- Natural and Medical Institute at the University of Tuebingen, Reutlingen, Germany
- Pharmaceutical Biotechnology, University of Tuebingen, Tuebingen, Germany
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Meder VS, Boeglin M, de Murcia G, Schreiber V. PARP-1 and PARP-2 interact with nucleophosmin/B23 and accumulate in transcriptionally active nucleoli. J Cell Sci 2005; 118:211-22. [PMID: 15615785 DOI: 10.1242/jcs.01606] [Citation(s) in RCA: 144] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The DNA damage-dependent poly(ADP-ribose) polymerases-1 and -2 (PARP-1 and PARP-2) are survival factors that share overlapping functions in the detection, signaling and repair of DNA strand breaks resulting from genotoxic lesions in mammalian cells. Here we show that PARP-1 and PARP-2 subnuclear distributions partially overlap, with both proteins accumulating within the nucleolus independently of each other. PARP-2 is enriched within the whole nucleolus and partially colocalizes with the nucleolar factor nucleophosmin/B23. We have identified a nuclear localization signal and a nucleolar localization signal within the N-terminal domain of PARP-2. PARP-2, like PARP-1, interacts with B23 through its N-terminal DNA binding domain. This association is constitutive and does not depend on either PARP activity or ribosomal transcription, but is prevented by mutation of the nucleolar localization signal of PARP-2. PARP-1 and PARP-2, together with B23, are delocalized from the nucleolus upon RNA polymerase I inhibition whereas the nucleolar accumulation of all three proteins is only moderately affected upon oxidative or alkylated DNA damage. Finally, we show that murine fibroblasts deficient in PARP-1 or PARP-2 are not affected in the transcription of ribosomal RNAs. Taken together, these results suggest that the biological role of PARP-1 and PARP-2 within the nucleolus relies on functional nucleolar transcription, without any obvious implication of either PARP on this major nucleolar process.
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Affiliation(s)
- Véronique S Meder
- UPR 9003 du Centre National de la Recherche Scientifique, Laboratoire conventionné avec le Commissariat à l'Energie Atomique, Université Louis Pasteur, Ecole Supérieure de Biotechnologie de Strasbourg, Illkirch, France
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MacLaren RA, Witmer MV, Richardson E, Stamato TD. Isolation of Chinese hamster ovary cells with reduced poly(ADP-ribose) polymerase activity. Mutat Res 1990; 231:265-74. [PMID: 2117253 DOI: 10.1016/0027-5107(90)90032-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The biological function of poly(ADP-ribose) polymerase in DNA repair, cell-cycle regulation and cellular differentiation has yet to be defined. Isolation of cells which are deficient in poly(ADP-ribose) synthesis would greatly facilitate the determination of the biological role of this enzyme. A method is described for isolating Chinese hamster ovary (CHO) cells deficient in the poly(ADP-ribose) polymerase activity by direct screening of colonies for enzyme activity. Colonies with decreased production of poly(ADP-ribose) are recovered from nylon replicas for further analysis. Using this method we have isolated a series of CHO cells which have 50% or less poly(ADP-ribose) polymerase activity. These mutants have normal generation times and are 20% more sensitive to the effects of DNA (m)ethylating agents than the parental cell. However, these mutants display normal sensitivity to gamma-rays.
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Affiliation(s)
- R A MacLaren
- Wistar Institute of Anatomy and Biology, Philadelphia, PA 19104
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Sweigert SE, Marston JM, Dethlefsen LA. Poly(ADP-ribose) metabolism in proliferating versus quiescent cells and its relationship to their radiation responses. Int J Radiat Biol 1990; 58:111-23. [PMID: 1973429 DOI: 10.1080/09553009014551471] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In the murine tumour cell lines 66 and 67 growing in vitro, quiescent (Q; unfed plateau-phase) cells are more sensitive to X-ray-induced cell killing than are proliferating (P) cells, while St4 cells (Q cells that have been re-fed and returned to 37 degrees C for 4h) are similar to P cells in radiosensitivity. We have been investigating parameters of poly(ADP-ribose) metabolism in order to determine whether such factors contribute to the variations in radiosensitivity of these growth states. These parameters were cellular NAD content, the activity of poly(ADP-ribose) transferase (ADPRT) in permeabilized cells and the activity of poly(ADP-ribose)-degrading enzymes. The results suggest that in line 66, but not 67, a reduced ability to regenerate NAD following irradiation was associated with the reduced survival of Q cells. However, neither the baseline activity of ADPRT nor the degree of stimulation of ADPRT by X-rays was found to correlate with survival, or with the induction and repair of DNA strand breaks. Stimulation of ADPRT by X-rays was dependent on dose and was greatest for a 2-min incubation with 3H-NAD. For a 2-min incubation the stimulation of ADPRT following a dose of 50 Gy was 7- and 10-fold in 66 and 67 P cells, respectively, versus 3-4-fold in Q cells. Detectable stimulation was observed in 66 P and Q cells for doses as low as 5 Gy. P and Q cells did not differ in the rate of degradation of the poly(ADP-ribose) polymers.
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Affiliation(s)
- S E Sweigert
- Department of Radiology, University of Utah Health Sciences Center, Salt Lake City 84132
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Dai YF, Yu YN, Chen XR. The cell-cycle dependent and the DNA-damaging agent-induced changes of cellular NAD content and their significance. Mutat Res 1987; 191:29-35. [PMID: 2952875 DOI: 10.1016/0165-7992(87)90166-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
NAD is the substrate of a novel chromatin-associated enzyme-ADP-ribosyl transferase (ADPRT). In this study, the cell-cycle dependent change in cellular NAD content was observed in a line of human amnion FL cells. It was found that the cellular NAD content of FL cells was highest in G1 and lowest in S/G2-G2. 3AB, a potent ADPRT inhibitor, can inhibit the cell cycle dependent change in cellular NAD content and also inhibit DNA synthesis in the S phase and extend the S phase. The results indicate that ADP-ribosylation may be involved in DNA replication and cell cycle progression. It was also found that the DNA-damaging agents, MNNG, MMS and 4NQO could lower cellular NAD content in a dose-dependent way. This DNA-damage-induced NAD lowering could be partially or completely prevented by the ADPRT inhibitors, 3AB or nicotinamide, which were shown to exert no influence on either the cellular NAD content of normal quiescent FL cells or the metabolic blocking agent, 2,4-DNP-induced cellular NAD lowering. The possibility of establishing a simple and specific method to detect DNA-damaging agents by measuring cellular NAD content in the presence or absence of ADPRT inhibitor is explored.
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