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Matveeva VG, Senokosova EA, Sevostianova VV, Khanova MY, Glushkova TV, Akentieva TN, Antonova LV, Barbarash LS. Advantages of Fibrin Polymerization Method without the Use of Exogenous Thrombin for Vascular Tissue Engineering Applications. Biomedicines 2022; 10:biomedicines10040789. [PMID: 35453539 PMCID: PMC9026760 DOI: 10.3390/biomedicines10040789] [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] [Received: 02/15/2022] [Revised: 03/16/2022] [Accepted: 03/25/2022] [Indexed: 01/01/2023] Open
Abstract
Fibrin is widely used in vascular tissue engineering. Typically, fibrin polymerization is initiated by adding exogenous thrombin. In this study, we proposed a protocol for the preparation of completely autologous fibrin without the use of endogenous thrombin and compared the properties of the prepared fibrin matrix with that obtained by the traditional method. Fibrinogen was obtained by ethanol precipitation followed by fibrin polymerization by adding either exogenous thrombin and calcium chloride (ExThr), or only calcium chloride (EnThr). We examined the structure, mechanical properties, thrombogenicity, degradation rate and cytocompatibility of fibrin matrices. Factor XIII (FXIII) quantitative assay was performed by ELISA, and FXIII activity was assessed by SDS-PAGE detection of γ-γ cross-links. The results show that network structure of EnThr fibrin was characterized by thinner fibers. The EnThr fibrin matrices had higher strength, stiffness and resistance to proteolytic degradation compared to ExThr fibrin. EnThr fibrin matrices exhibited less thrombogenicity in vitro than ExThr, and retained high cytocompatibility. Thus, the proposed approach has several advantages over the traditional method, namely the fabrication of a completely autologous coating material that has better mechanical properties, higher resistance to proteolysis and lower thrombogenicity.
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Sudhadevi T, Vijayakumar HS, Hariharan EV, Sandhyamani S, Krishnan LK. Optimizing fibrin hydrogel toward effective neural progenitor cell delivery in spinal cord injury. Biomed Mater 2021; 17. [PMID: 34736245 DOI: 10.1088/1748-605x/ac3680] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 11/04/2021] [Indexed: 11/12/2022]
Abstract
Transplantation of neural progenitor cell (NPC) possessing the potential to differentiate into neurons may guard against spinal cord injury (SCI)- associated neuronal trauma. We propose that autologous-like NPC may reduce post-transplant immune response. The study used the rat SCI model to prove this concept. For isolation and expansion of rat NPC for cell-based SCI therapy, thein vitroprotocol standardized with human NPC seemed suitable. The primary aim of this study is to select a cell/neural tissue-compatible biomaterial for improving NPC survivalin vivo. The composition of the fibrin hydrogel is adjusted to obtain degradable, porous, and robust fibrin strands for supporting neural cell attachment, migration, and tissue regeneration. This study employed NPC culture to evaluate the cytocompatibility and suitability of the hydrogel, composed by adding graded concentrations of thrombin to a fixed fibrinogen concentration. The microstructure evaluation by scanning electron microscope guided the selection of a suitable composition for delivering the embedded cells. On adding more thrombin, fibrinogen clotted quickly but reduced porosity, pore size, and fiber strand thickness. The high activity of thrombin also affected NPC morphology and thein vitrocell survival. The selected hydrogel carried viable NPC and retained them at the injury site post-transplantation. The fibrin hydrogel played a protective role throughout the transfer process by providing cell attachment sites and survival signals. The fibrin and NPC together regulated the immune response at the SCI site reducing ED1+ve/ED2+vemacrophages in the early period of 8-16 d after injury. Migration ofβ-III tubulin+veneural-like cells into the fibrin-injected control SCI is evident. The continuous use of a non-neurotoxic fibrin matrix could be a convenient strategy forin vitroNPC preparation, minimally invasive cell delivery, and better transplantation outcome.
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Affiliation(s)
- Tara Sudhadevi
- Retd. Senior Grade Scientist G, Division of Thrombosis Research, Department of Applied Biology, Biomedical Technology Wing, Thrombosis Research Unit, SCTIMST, Trivandrum 695 012, India
| | - Harikrishnan S Vijayakumar
- Laboratory for Animal Science, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum 695012 Kerala, India
| | - Easwer V Hariharan
- Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum 695012 Kerala, India
| | - Samavedam Sandhyamani
- Department of Pathology, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Trivandrum 695012 Kerala, India
| | - Lissy K Krishnan
- Retd. Senior Grade Scientist G, Division of Thrombosis Research, Department of Applied Biology, Biomedical Technology Wing, Thrombosis Research Unit, SCTIMST, Trivandrum 695 012, India
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Reksodiputro MH, Harahap AR, Setiawan L, Yosia M. A Modified Preparation Method of Ideal Platelet-Rich Fibrin Matrix From Whole Blood. Front Med (Lausanne) 2021; 8:724488. [PMID: 34485352 PMCID: PMC8414516 DOI: 10.3389/fmed.2021.724488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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] [Received: 06/13/2021] [Accepted: 07/07/2021] [Indexed: 01/15/2023] Open
Abstract
One bioproduct that is widely used in the wound healing process is platelet-rich plasma (PRP). PRP is a liquid solution with high autologous platelet concentration, making it a good source of growth factors to accelerate wound healing. Recent development in PRP had created a new product called platelet-rich fibrin matrix (PRFM), which has a denser and more flexible structure. PRFM is the newest generation of platelet concentrate with a fibrin matrix that holds platelet in it. The key concept in creating PRFM from PRP is the addition of CaCl2 followed by centrifugation, which converts fibrinogen to fibrin, and the fibrin cross-links to form a matrix that contains viable platelets. There are many commercially available kits to create PRFM, but they are often expensive and uneconomical. This research will test a modified method of making ideal PRFM from PRP without any commercial kits. The modified method will include determining the minimum level of CaCl2 used, the type of centrifuge, and the speed and duration of centrifugation. By performing a modified preparation method on five samples of whole blood, it was found that the ideal PRFM could be made by mixing PRP with 25 mM CaCl2 and centrifuging it at a speed of 2,264 × g for 25 min at room temperature. The PRP and PRFM platelet counts of this method tend to be lower than the platelet counts found in other studies. Although visually comparable, further study is needed to compare the performance of PRFMs made with this method and PRFMs made with commercial kits.
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Affiliation(s)
- Mirta Hediyati Reksodiputro
- Division of Facial Plastic & Reconstructive Surgery, Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine, Universitas Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Alida Roswita Harahap
- Department of Clinical Pathology, Faculty of Medicine, Universitas Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Lyana Setiawan
- Department of Clinical Pathology, Rumah Sakit Dharmais Pusat Kanker Nasional, Jakarta, Indonesia
| | - Mikhael Yosia
- Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
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Lana JF, da Fonseca LF, Azzini G, Santos G, Braga M, Cardoso Junior AM, Murrell WD, Gobbi A, Purita J, Percope de Andrade MA. Bone Marrow Aspirate Matrix: A Convenient Ally in Regenerative Medicine. Int J Mol Sci 2021; 22:ijms22052762. [PMID: 33803231 PMCID: PMC7963152 DOI: 10.3390/ijms22052762] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/17/2021] [Accepted: 02/24/2021] [Indexed: 02/06/2023] Open
Abstract
The rise in musculoskeletal disorders has prompted medical experts to devise novel effective alternatives to treat complicated orthopedic conditions. The ever-expanding field of regenerative medicine has allowed researchers to appreciate the therapeutic value of bone marrow-derived biological products, such as the bone marrow aspirate (BMA) clot, a potent orthobiologic which has often been dismissed and regarded as a technical complication. Numerous in vitro and in vivo studies have contributed to the expansion of medical knowledge, revealing optimistic results concerning the application of autologous bone marrow towards various impactful disorders. The bone marrow accommodates a diverse family of cell populations and a rich secretome; therefore, autologous BMA-derived products such as the “BMA Matrix”, may represent a safe and viable approach, able to reduce the costs and some drawbacks linked to the expansion of bone marrow. BMA provides —it eliminates many hurdles associated with its preparation, especially in regards to regulatory compliance. The BMA Matrix represents a suitable alternative, indicated for the enhancement of tissue repair mechanisms by modulating inflammation and acting as a natural biological scaffold as well as a reservoir of cytokines and growth factors that support cell activity. Although promising, more clinical studies are warranted in order to further clarify the efficacy of this strategy.
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Affiliation(s)
- José Fábio Lana
- IOC—Instituto do Osso e da Cartilagem, 1386 Presidente Kennedy Avenue, Indaiatuba 13334-170, Brazil; (J.F.L.); (G.A.)
| | | | - Gabriel Azzini
- IOC—Instituto do Osso e da Cartilagem, 1386 Presidente Kennedy Avenue, Indaiatuba 13334-170, Brazil; (J.F.L.); (G.A.)
| | - Gabriel Santos
- IOC—Instituto do Osso e da Cartilagem, 1386 Presidente Kennedy Avenue, Indaiatuba 13334-170, Brazil; (J.F.L.); (G.A.)
- Correspondence:
| | - Marcelo Braga
- Hospital São Judas Tadeu, 150 Cel. João Notini St, Divinópolis 35500-017, Brazil;
| | - Alvaro Motta Cardoso Junior
- Núcleo Avançado de Estudos em Ortopedia e Neurocirurgia, 2144 Ibirapuera Avenue, São Paulo 04028-001, Brazil;
| | - William D. Murrell
- Abu Dhabi Knee and Sports Medicine, Healthpoint Hospital, Zayed Sports City, Between Gate 1 and 6, Abu Dhabi 00000 (P. O. Box No. 112308), United Arab Emirates;
- 411th Hospital Center, Bldg 938, Birmingham Ave, Naval Air Station, Jacksonville, FL 32212, USA
| | - Alberto Gobbi
- O.A.S.I. Bioresearch Foundation Gobbi Onlus, 20133 Milano, Italy;
| | - Joseph Purita
- Institute of Regenerative Medicine, Boca Raton, FL 33432, USA;
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Shulman I, Ogurcov S, Kostennikov A, Rogozin A, Garanina E, Masgutova G, Sergeev M, Rizvanov A, Mukhamedshina Y. Application of Autologous Peripheral Blood Mononuclear Cells into the Area of Spinal Cord Injury in a Subacute Period: A Feasibility Study in Pigs. Biology (Basel) 2021; 10:biology10020087. [PMID: 33498942 PMCID: PMC7911660 DOI: 10.3390/biology10020087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 12/30/2020] [Revised: 01/14/2021] [Accepted: 01/19/2021] [Indexed: 12/02/2022]
Abstract
Simple Summary Spinal cord injury is a medical and social issue causing severe disability. The potential to overcome the consequences of spinal cord injury is related to cell therapy. Peripheral blood is a prospective and available source of cells for further clinical use. In our study, we have evaluated the therapeutic potential of peripheral blood mononuclear cells (PBMCs) on the model of spinal cord injury in pigs. In the subacute period (6 weeks after injury), PBMCs enclosed in fibrin glue were applied into the dorsal area of the injured spinal cord. In this study, we observed that the tissue integrity increased in the area adjacent to the epicenter of injury, and conduction along spinal axons was partially restored after cell therapy in pigs. Abstract Peripheral blood presents an available source of cells for both fundamental research and clinical use. In our study, we have evaluated the therapeutic potential of peripheral blood mononuclear cells (PBMCs) excluding the preliminary sorting or mobilization of peripheral blood stem cells. We have evaluated the regenerative potential of PBMCs embedded into a fibrin matrix (FM) in a model of pig spinal cord injury. The distribution of transplanted PBMCs in the injured spinal cord was evaluated; PBMCs were shown to penetrate into the deep layers of the spinal cord and concentrate mainly in the grey matter. The results of the current study revealed an increase in the tissue integrity in the area adjacent to the epicenter of injury and the partially restored conduction along posterior columns of the spinal cord in animals after FM+PBMC application. The multiplex analysis of blood serum and cerebrospinal fluid showed the cytokine imbalance to occur without significantly shifting toward pro-inflammatory or anti-inflammatory cytokine cascades.
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Affiliation(s)
- Iliya Shulman
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (A.R.); (E.G.); (G.M.); (M.S.); (A.R.)
- Republic Clinical Hospital, 420138 Kazan, Russia
| | - Sergei Ogurcov
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (A.R.); (E.G.); (G.M.); (M.S.); (A.R.)
- Republic Clinical Hospital, 420138 Kazan, Russia
| | - Alexander Kostennikov
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (A.R.); (E.G.); (G.M.); (M.S.); (A.R.)
| | - Alexander Rogozin
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (A.R.); (E.G.); (G.M.); (M.S.); (A.R.)
- Department of Neurology, Kazan State Medical Academy–Branch Campus of the Federal State Budgetary Edicational Institution of Father Professional Education «Russian Medical Academy of Continuous Professional Education», 420012 Kazan, Russia
| | - Ekaterina Garanina
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (A.R.); (E.G.); (G.M.); (M.S.); (A.R.)
| | - Galina Masgutova
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (A.R.); (E.G.); (G.M.); (M.S.); (A.R.)
| | - Mikhail Sergeev
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (A.R.); (E.G.); (G.M.); (M.S.); (A.R.)
- Department of Veterinary Surgery, Obstetrics and Small Animal Pathology, Kazan State Academy of Veterinary Medicine, 420029 Kazan, Russia
| | - Albert Rizvanov
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (A.R.); (E.G.); (G.M.); (M.S.); (A.R.)
| | - Yana Mukhamedshina
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (A.R.); (E.G.); (G.M.); (M.S.); (A.R.)
- Department of Histology, Cytology, and Embryology, Kazan State Medical University, 420012 Kazan, Russia
- Correspondence: ; Tel.: +7-(927)-430-7511; Fax: +7-(843)-292-4448
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Mukhamedshina Y, Shulman I, Ogurcov S, Kostennikov A, Zakirova E, Akhmetzyanova E, Rogozhin A, Masgutova G, James V, Masgutov R, Lavrov I, Rizvanov A. Mesenchymal Stem Cell Therapy for Spinal Cord Contusion: A Comparative Study on Small and Large Animal Models. Biomolecules 2019; 9:E811. [PMID: 31805639 PMCID: PMC6995633 DOI: 10.3390/biom9120811] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [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: 09/30/2019] [Revised: 11/05/2019] [Accepted: 11/26/2019] [Indexed: 12/19/2022] Open
Abstract
Here, we provide a first comparative study of the therapeutic potential of allogeneic mesenchymal stem cells derived from bone marrow (BM-MSCs), adipose tissue (AD-MSCs), and dental pulp (DP-MSCs) embedded in fibrin matrix, in small (rat) and large (pig) spinal cord injury (SCI) models during subacute period of spinal contusion. Results of behavioral, electrophysiological, and histological assessment as well as immunohistochemistry and real-time polymerase chain reaction analysis suggest that application of AD-MSCs combined with a fibrin matrix within the subacute period in rats (2 weeks after injury), provides significantly higher post-traumatic regeneration compared to a similar application of BM-MSCs or DP-MSCs. Within the rat model, use of AD-MSCs resulted in a marked change in: (1) restoration of locomotor activity and conduction along spinal axons; (2) reduction of post-traumatic cavitation and enhancing tissue retention; and (3) modulation of microglial and astroglial activation. The effect of an autologous application of AD-MSCs during the subacute period after spinal contusion was also confirmed in pigs (6 weeks after injury). Effects included: (1) partial restoration of the somatosensory spinal pathways; (2) reduction of post-traumatic cavitation and enhancing tissue retention; and (3) modulation of astroglial activation in dorsal root entry zone. However, pigs only partially replicated the findings observed in rats. Together, these results indicate application of AD-MSCs embedded in fibrin matrix at the site of SCI during the subacute period can facilitate regeneration of nervous tissue in rats and pigs. These results, for the first time, provide robust support for the use of AD-MSC to treat subacute SCI.
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Affiliation(s)
- Yana Mukhamedshina
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (E.Z.); (E.A.); (A.R.); (G.M.); (R.M.); (I.L.); (A.R.)
- Department of Histology, Cytology, and Embryology, Kazan State Medical University, 420012 Kazan, Russia
| | - Iliya Shulman
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (E.Z.); (E.A.); (A.R.); (G.M.); (R.M.); (I.L.); (A.R.)
- Republic Clinical Hospital, 420138 Kazan, Russia
| | - Sergei Ogurcov
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (E.Z.); (E.A.); (A.R.); (G.M.); (R.M.); (I.L.); (A.R.)
- Republic Clinical Hospital, 420138 Kazan, Russia
| | - Alexander Kostennikov
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (E.Z.); (E.A.); (A.R.); (G.M.); (R.M.); (I.L.); (A.R.)
| | - Elena Zakirova
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (E.Z.); (E.A.); (A.R.); (G.M.); (R.M.); (I.L.); (A.R.)
| | - Elvira Akhmetzyanova
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (E.Z.); (E.A.); (A.R.); (G.M.); (R.M.); (I.L.); (A.R.)
| | - Alexander Rogozhin
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (E.Z.); (E.A.); (A.R.); (G.M.); (R.M.); (I.L.); (A.R.)
- Department of Neurology, Kazan State Medical Academy–Branch Campus of the Federal State Budgetary Edicational Institution of Father Professional Education «Russian Medical Academy of Continuous Professional Education», 420012 Kazan, Russia
| | - Galina Masgutova
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (E.Z.); (E.A.); (A.R.); (G.M.); (R.M.); (I.L.); (A.R.)
| | - Victoria James
- Division of Biomedical Science, School of Veterinary Medicine and Science, Faculty of Medicine and Health Sciences, University of Nottingham Biodiscovery Institute, University Park, Nottingham NG7 2RD, UK;
| | - Ruslan Masgutov
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (E.Z.); (E.A.); (A.R.); (G.M.); (R.M.); (I.L.); (A.R.)
- Republic Clinical Hospital, 420138 Kazan, Russia
| | - Igor Lavrov
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (E.Z.); (E.A.); (A.R.); (G.M.); (R.M.); (I.L.); (A.R.)
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA
| | - Albert Rizvanov
- Clinical Research Center for Precision and Regenerative Medicine, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (I.S.); (S.O.); (A.K.); (E.Z.); (E.A.); (A.R.); (G.M.); (R.M.); (I.L.); (A.R.)
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Ahn J, Lim J, Jusoh N, Lee J, Park TE, Kim Y, Kim J, Jeon NL. 3D Microfluidic Bone Tumor Microenvironment Comprised of Hydroxyapatite/Fibrin Composite. Front Bioeng Biotechnol 2019; 7:168. [PMID: 31380359 PMCID: PMC6653063 DOI: 10.3389/fbioe.2019.00168] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [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: 05/02/2019] [Accepted: 07/01/2019] [Indexed: 01/04/2023] Open
Abstract
Bone is one of the most common sites of cancer metastasis, as its fertile microenvironment attracts tumor cells. The unique mechanical properties of bone extracellular matrix (ECM), mainly composed of hydroxyapatite (HA) affect a number of cellular responses in the tumor microenvironment (TME) such as proliferation, migration, viability, and morphology, as well as angiogenic activity, which is related to bone metastasis. In this study, we engineered a bone-mimetic microenvironment to investigate the interactions between the TME and HA using a microfluidic platform designed for culturing tumor cells in 3D bone-mimetic composite of HA and fibrin. We developed a bone metastasis TME model from colorectal cancer (SW620) and gastric cancer (MKN74) cells, which has very poor prognosis but rarely been investigated. The microfluidic platform enabled straightforward formation of 3D TME composed the hydrogel and multiple cell types. This facilitated monitoring of the effect of HA concentration and culture time on the TME. In 3D bone mimicking culture, we found that HA rich microenvironment affects cell viability, proliferation and cancer cell cytoplasmic volume in a manner dependent on the different metastatic cancer cell types and culture duration indicating the spatial heterogeneity (different origin of metastatic cancer) and temporal heterogeneity (growth time of cancer) of TME. We also found that both SW620 and MKN72 cells exhibited significantly reduced migration at higher HA concentration in our platform indicating inhibitory effect of HA in both cancer cells migration. Next, we quantitatively analyzed angiogenic sprouts induced by paracrine factors that secreted by TME and showed paracrine signals from tumor and stromal cell with a high HA concentration resulted in the formation of fewer sprouts. Finally we reconstituted vascularized TME allowing direct interaction between angiogenic sprouts and tumor-stroma microspheroids in a bone-mimicking microenvironment composing a tunable HA/fibrin composite. Our multifarious approach could be applied to drug screening and mechanistic studies of the metastasis, growth, and progression of bone tumors.
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Affiliation(s)
- Jungho Ahn
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Korea.,George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Jungeun Lim
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Korea.,George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Norhana Jusoh
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Korea.,Faculty of Engineering, School of Biomedical Engineering and Health Sciences, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | - Jungseub Lee
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Korea
| | - Tae-Eun Park
- Ulsan National Institute of Science and Technology, Ulsan, South Korea
| | - YongTae Kim
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, United States.,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, United States.,Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, United States.,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Jangho Kim
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, South Korea
| | - Noo Li Jeon
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Korea.,Division of WCU (World Class University) Multiscale Mechanical Design, Seoul National University, Seoul, South Korea.,Seoul National University Institute of Advanced Machines and Design, Seoul, South Korea.,Institute of Bioengineering, Seoul National University, Seoul, South Korea
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8
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Hadjipanayi E, Moog P, Bekeran S, Kirchhoff K, Berezhnoi A, Aguirre J, Bauer AT, Kükrek H, Schmauss D, Hopfner U, Isenburg S, Ntziachristos V, Ninkovic M, Machens HG, Schilling AF, Dornseifer U. In Vitro Characterization of Hypoxia Preconditioned Serum (HPS)-Fibrin Hydrogels: Basis for an Injectable Biomimetic Tissue Regeneration Therapy. J Funct Biomater 2019; 10:E22. [PMID: 31086048 DOI: 10.3390/jfb10020022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 03/16/2019] [Revised: 04/26/2019] [Accepted: 05/05/2019] [Indexed: 01/03/2023] Open
Abstract
Blood-derived growth factor preparations have long been employed to improve perfusion and aid tissue repair. Among these, platelet-rich plasma (PRP)-based therapies have seen the widest application, albeit with mixed clinical results to date. Hypoxia-preconditioned blood products present an alternative to PRP, by comprising the complete wound healing factor-cascade, i.e., hypoxia-induced peripheral blood cell signaling, in addition to platelet-derived factors. This study set out to characterize the preparation of hypoxia preconditioned serum (HPS), and assess the utility of HPS–fibrin hydrogels as vehicles for controlled factor delivery. Our findings demonstrate the positive influence of hypoxic incubation on HPS angiogenic potential, and the individual variability of HPS angiogenic factor concentration. HPS–fibrin hydrogels can rapidly retain HPS factor proteins and gradually release them over time, while both functions appear to depend on the fibrin matrix mass. This offers a means of controlling factor retention/release, through adjustment of HPS fibrinogen concentration, thus allowing modulation of cellular angiogenic responses in a growth factor dose-dependent manner. This study provides the first evidence that HPS–fibrin hydrogels could constitute a new generation of autologous/bioactive injectable compositions that provide biochemical and biomaterial signals analogous to those mediating physiological wound healing. This therefore establishes a rational foundation for their application towards biomimetic tissue regeneration.
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Ahn J, Lim J, Jusoh N, Lee J, Park TE, Kim Y, Kim J, Jeon NL. 3D Microfluidic Bone Tumor Microenvironment Comprised of Hydroxyapatite/Fibrin Composite. Front Bioeng Biotechnol 2019. [PMID: 31380359 DOI: 10.3389/fbioe.2019.00168/full] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023] Open
Abstract
Bone is one of the most common sites of cancer metastasis, as its fertile microenvironment attracts tumor cells. The unique mechanical properties of bone extracellular matrix (ECM), mainly composed of hydroxyapatite (HA) affect a number of cellular responses in the tumor microenvironment (TME) such as proliferation, migration, viability, and morphology, as well as angiogenic activity, which is related to bone metastasis. In this study, we engineered a bone-mimetic microenvironment to investigate the interactions between the TME and HA using a microfluidic platform designed for culturing tumor cells in 3D bone-mimetic composite of HA and fibrin. We developed a bone metastasis TME model from colorectal cancer (SW620) and gastric cancer (MKN74) cells, which has very poor prognosis but rarely been investigated. The microfluidic platform enabled straightforward formation of 3D TME composed the hydrogel and multiple cell types. This facilitated monitoring of the effect of HA concentration and culture time on the TME. In 3D bone mimicking culture, we found that HA rich microenvironment affects cell viability, proliferation and cancer cell cytoplasmic volume in a manner dependent on the different metastatic cancer cell types and culture duration indicating the spatial heterogeneity (different origin of metastatic cancer) and temporal heterogeneity (growth time of cancer) of TME. We also found that both SW620 and MKN72 cells exhibited significantly reduced migration at higher HA concentration in our platform indicating inhibitory effect of HA in both cancer cells migration. Next, we quantitatively analyzed angiogenic sprouts induced by paracrine factors that secreted by TME and showed paracrine signals from tumor and stromal cell with a high HA concentration resulted in the formation of fewer sprouts. Finally we reconstituted vascularized TME allowing direct interaction between angiogenic sprouts and tumor-stroma microspheroids in a bone-mimicking microenvironment composing a tunable HA/fibrin composite. Our multifarious approach could be applied to drug screening and mechanistic studies of the metastasis, growth, and progression of bone tumors.
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Affiliation(s)
- Jungho Ahn
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Korea
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Jungeun Lim
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Korea
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Norhana Jusoh
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Korea
- Faculty of Engineering, School of Biomedical Engineering and Health Sciences, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | - Jungseub Lee
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Korea
| | - Tae-Eun Park
- Ulsan National Institute of Science and Technology, Ulsan, South Korea
| | - YongTae Kim
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, United States
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, United States
- Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, United States
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Jangho Kim
- Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, South Korea
| | - Noo Li Jeon
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Korea
- Division of WCU (World Class University) Multiscale Mechanical Design, Seoul National University, Seoul, South Korea
- Seoul National University Institute of Advanced Machines and Design, Seoul, South Korea
- Institute of Bioengineering, Seoul National University, Seoul, South Korea
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Mukhamedshina YO, Akhmetzyanova ER, Kostennikov AA, Zakirova EY, Galieva LR, Garanina EE, Rogozin AA, Kiassov AP, Rizvanov AA. Adipose-Derived Mesenchymal Stem Cell Application Combined With Fibrin Matrix Promotes Structural and Functional Recovery Following Spinal Cord Injury in Rats. Front Pharmacol 2018; 9:343. [PMID: 29692732 PMCID: PMC5902567 DOI: 10.3389/fphar.2018.00343] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [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: 11/02/2017] [Accepted: 03/26/2018] [Indexed: 01/05/2023] Open
Abstract
The use of stem and progenitor cells to restore damaged organs and tissues, in particular, the central nervous system, is currently considered a most promising therapy in regenerative medicine. At the same time, another approach aimed at stimulating regeneration with the use of stem cells encapsulated into a biopolymer matrix and capable of creating a specific microenvironment for the implanted cells similar to the natural extracellular matrix is under active development. Here, we study effects of the application of adipose-derived mesenchymal stem cells (AD-MSCs) combined with a fibrin matrix on post-traumatic reactions in the spinal cord in rats. The AD-MSC application is found to exert a positive impact on the functional and structural recovery after spinal cord injury (SCI) that has been confirmed by the results of behavioral/electrophysiological and morphometric studies demonstrating reduced area of abnormal cavities and enhanced tissue retention in the site of injury. Immunohistochemical and real-time PCR analyses provide evidence that AD-MSC application decreases the GFAP expression in the area of SCI that might indicate the reduction of astroglial activation. Our results also demonstrate that AD-MSC application contributes to marked upregulation of PDGFβR and HSPA1b mRNA expression and decrease of Iba1 expression at the site of the central canal. Thus, the application of AD-MSCs combined with fibrin matrix at the site of SCI during the subacute period can stimulate important mechanisms of nervous tissue regeneration and should be further developed for clinical applications.
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Affiliation(s)
- Yana O Mukhamedshina
- OpenLab "Gene and Cell Technologies", Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia.,Department of Histology, Cytology and Embryology, Kazan State Medical University, Kazan, Russia
| | - Elvira R Akhmetzyanova
- OpenLab "Gene and Cell Technologies", Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Alexander A Kostennikov
- OpenLab "Gene and Cell Technologies", Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Elena Y Zakirova
- OpenLab "Gene and Cell Technologies", Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Luisa R Galieva
- OpenLab "Gene and Cell Technologies", Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Ekaterina E Garanina
- OpenLab "Gene and Cell Technologies", Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Alexander A Rogozin
- OpenLab "Gene and Cell Technologies", Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia.,Department of Neurology and Manual Therapy, Kazan State Medical Academy, Kazan, Russia
| | - Andrey P Kiassov
- OpenLab "Gene and Cell Technologies", Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Albert A Rizvanov
- OpenLab "Gene and Cell Technologies", Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
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Chiti MC, Dolmans MM, Lucci CM, Paulini F, Donnez J, Amorim CA. Further insights into the impact of mouse follicle stage on graft outcome in an artificial ovary environment. Mol Hum Reprod 2018; 23:381-392. [PMID: 28333304 DOI: 10.1093/molehr/gax016] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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: 12/01/2016] [Accepted: 03/13/2017] [Indexed: 12/13/2022] Open
Abstract
STUDY QUESTION Are mouse preantral follicles differently affected by isolation, encapsulation and/or grafting procedures according to stage? SUMMARY ANSWER Isolated secondary follicles showed superior ability to survive and grow after transplantation, which was not related to a particular effect of the isolation and/or grafting procedure, but rather to their own ability to induce neoangiogenesis. WHAT IS KNOWN ALREADY Isolated and encapsulated mouse preantral follicles can survive (6-27%) and grow (80-100%) in a fibrin matrix with a low concentration of fibrinogen and thrombin (F12.5/T1) after short-term transplantation. STUDY DESIGN, SIZE, DURATION An in vivo experimental model using 20 donor Naval Medical Research Institute (NMRI) mice (6-25 weeks of age) and 14 recipient severe combined immunodeficient (SCID) mice (11-39 weeks of age) was applied. Each NMRI mouse underwent mechanical disruption of both ovaries and isolation of primordial-primary and secondary follicles with ovarian stromal cells, in order to encapsulate them in an F12.5/T1 matrix. Twelve out of 40 fibrin clots were immediately fixed as controls (D0) (10 for histology and 2 for scanning electron microscopy [SEM]) and the others (n = 28) were grafted to the inner part of the peritoneum for 2 (16 fibrin clots) or 7 (12 fibrin clots) days (D2 and D7). PARTICIPANTS/MATERIALS, SETTING, METHODS This study involved the participation of the Gynecology Research Unit (Universitè Catholique de Louvain) and the Physiological Sciences Department (University of Brasília). Specific techniques were used to analyze the follicle recovery rate (hematoxylin-eosin staining), vascularization (CD34) and follicle ultrastructure (transmission electron microscopy [TEM] and SEM). MAIN RESULTS AND THE ROLE OF CHANCE After follicle isolation and encapsulation, a statistically higher percentage of normal follicles was observed in the secondary group (62%) than in the primordial-primary group (47%). Follicle recovery rates were 34% and 62% for primordial-primary and secondary follicles on D2, respectively, and 12% and 42% on D7, confirming that secondary follicles survive better than primordial-primary follicles after grafting. Concerning vascularization, both follicle stages exhibited similar vascularization to that seen in control mouse ovary on D7, but a significantly higher number of vessels and greater vessel surface area were detected in the secondary follicle group. Despite structural differences in fiber density between fibrin clots and ovarian tissue observed by SEM and TEM, preantral follicles appeared to be well encapsulated in the matrix, also showing a normal ultrastructure after grafting. LARGE SCALE DATA Not applicable. LIMITATIONS, REASONS FOR CAUTION As demonstrated by our results during the isolation procedure, we encapsulated a significantly higher number of round structures in the primordial-primary group than in the secondary group, which could partially explain the lower recovery rate of early-stage follicles in our previous study. However, it is not excluded that the physical and mechanical properties of the fibrin matrix may also play a role in follicle survival and growth, so further investigations are needed. WIDER IMPLICATIONS OF THE FINDINGS This research represents one more key step in the creation of the artificial ovary. STUDY FUNDING/COMPETING INTEREST(S) This study was supported by grants from the Fonds National de la Recherche Scientifique de Belgique (FNRS) to C.A. Amorim as a research associate at FRS-FNRS and (grant 5/4/150/5 awarded to M.M. Dolmans), Fonds Spéciaux de Recherche, Fondation St Luc, Foundation Against Cancer, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES-Brazil) (grant #013/14 CAPES/WBI awarded to C.M. Lucci, with F. Paulini receiving a post-doctoral fellowship), and Wallonie-Bruxelles International, and donations from the Ferrero family. None of the authors have any competing interests to declare in relation to the topic.
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Affiliation(s)
- M C Chiti
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200 Brussels, Belgium
| | - M M Dolmans
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200 Brussels, Belgium.,Gynecology Department, Cliniques Universitaires Saint-Luc, 1200, Brussels, Belgium
| | - C M Lucci
- Physiological Sciences Department, Institute of Biological Sciences, University of Brasília, Brasília, DFBrazil
| | - F Paulini
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200 Brussels, Belgium
| | - J Donnez
- Society for Research into Infertility, 1200 Brussels, Belgium
| | - C A Amorim
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200 Brussels, Belgium
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12
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Gavin KM, Majka SM, Kohrt WM, Miller HL, Sullivan TM, Klemm DJ. Hematopoietic-to-mesenchymal transition of adipose tissue macrophages is regulated by integrin β1 and fabricated fibrin matrices. Adipocyte 2017; 6:234-249. [PMID: 28441086 DOI: 10.1080/21623945.2017.1314403] [Citation(s) in RCA: 7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Some bona fide adult adipocytes arise de novo from a bone marrow-derived myeloid lineage. These studies further demonstrate that adipose tissue stroma contains a resident population of myeloid cells capable of adipocyte and multilineage mesenchymal differentiation. These resident myeloid cells lack hematopoietic markers and express mesenchymal and progenitor cell markers. Because bone marrow mesenchymal progenitor cells have not been shown to enter the circulation, we hypothesized that myeloid cells acquire mesenchymal differentiation capacity in adipose tissue. We fabricated a 3-dimensional fibrin matrix culture system to define the adipose differentiation potential of adipose tissue-resident myeloid subpopulations, including macrophages, granulocytes and dendritic cells. Our data show that multilineage mesenchymal potential was limited to adipose tissue macrophages, characterized by the acquisition of adipocyte, osteoblast, chondrocyte and skeletal muscle myocyte phenotypes. Fibrin hydrogel matrices stimulated macrophage loss of hematopoietic cell lineage determinants and the expression of mesenchymal and progenitor cell markers, including integrin β1. Ablation of integrin β1 in macrophages inhibited adipocyte specification. Therefore, some bona fide adipocytes are specifically derived from adipose tissue-resident macrophages via an integrin β1-dependent hematopoietic-to-mesenchymal transition, whereby they become capable of multipotent mesenchymal differentiation. The requirement for integrin β1 highlights this molecule as a potential target for controlling the production of marrow-derived adipocytes and their contribution to adipose tissue development and function.
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Affiliation(s)
- Kathleen M. Gavin
- Geriatric Research, Education and Clinical Center, VA Eastern Colorado Health Care System, Denver, CO
- Division of Geriatric Medicine, Department of Medicine, University of Colorado Anschutz Medical Center, Aurora, CO
| | - Susan M. Majka
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN
| | - Wendy M. Kohrt
- Geriatric Research, Education and Clinical Center, VA Eastern Colorado Health Care System, Denver, CO
- Division of Geriatric Medicine, Department of Medicine, University of Colorado Anschutz Medical Center, Aurora, CO
| | - Heidi L. Miller
- Division of Pulmonary and Critical Care Medicine, University of Colorado Anschutz Medical Center, Aurora, CO
| | - Timothy M. Sullivan
- Division of Pulmonary and Critical Care Medicine, University of Colorado Anschutz Medical Center, Aurora, CO
| | - Dwight J. Klemm
- Geriatric Research, Education and Clinical Center, VA Eastern Colorado Health Care System, Denver, CO
- Division of Pulmonary and Critical Care Medicine, University of Colorado Anschutz Medical Center, Aurora, CO
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13
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Kirchner F, Anitua E. Intradiscal and intra-articular facet infiltrations with plasma rich in growth factors reduce pain in patients with chronic low back pain. J Craniovertebr Junction Spine 2016; 7:250-256. [PMID: 27891035 PMCID: PMC5111327 DOI: 10.4103/0974-8237.193260] [Citation(s) in RCA: 15] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Context: Low back pain (LBP) is a complex and disabling condition, and its treatment becomes a challenge. Aims: The aim of our study was to assess the clinical outcome of plasma rich in growth factors (PRGF-Endoret) infiltrations (one intradiscal, one intra-articular facet, and one transforaminal epidural injection) under fluoroscopic guidance-control in patients with chronic LBP. PRGF-Endoret which has been shown to be an efficient treatment to reduce joint pain. Settings and Design: The study was designed as an observational retrospective pilot study. Eighty-six patients with a history of chronic LBP and degenerative disease of the lumbar spine who met inclusion and exclusion criteria were recruited between December 2010 and January 2012. Subjects and Methods: One intradiscal, one intra-articular facet, and one transforaminal epidural injection of PRGF-Endoret under fluoroscopic guidance-control were carried out in 86 patients with chronic LBP in the operating theater setting. Statistical Analysis Used: Descriptive statistics were performed using absolute and relative frequency distributions for qualitative variables and mean values and standard deviations for quantitative variables. The nonparametric Friedman statistical test was used to determine the possible differences between baseline and different follow-up time points on pain reduction after treatment. Results: Pain assessment was determined using a visual analog scale (VAS) at the first visit before (baseline) and after the procedure at 1, 3, and 6 months. The pain reduction after the PRGF-Endoret injections showed a statistically significant drop from 8.4 ± 1.1 before the treatment to 4 ± 2.6, 1.7 ± 2.3, and 0.8 ± 1.7 at 1, 3, and 6 months after the treatment, respectively, with respect to all the time evaluations (P < 0.0001) except for the pain reduction between the 3rd and 6th month whose signification was lower (P < 0.05). The analysis of the VAS over time showed that at the end point of the study (6 months), 91% of patients showed an excellent score, 8.1% showed a moderate improvement, and 1.2% were in the inefficient score. Conclusions: Fluoroscopy-guided infiltrations of intervertebral discs and facet joints with PRGF in patients with chronic LBP resulted in significant pain reduction assessed by VAS.
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Affiliation(s)
| | - Eduardo Anitua
- Eduardo Anitua Foundation for Biomedical Research, Vitoria, Spain; BTI-Biotechnology Institute, Vitoria, Spain
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14
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Chiti MC, Dolmans MM, Orellana R, Soares M, Paulini F, Donnez J, Amorim CA. Influence of follicle stage on artificial ovary outcome using fibrin as a matrix. Hum Reprod 2015; 31:427-35. [PMID: 26628641 DOI: 10.1093/humrep/dev299] [Citation(s) in RCA: 18] [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: 07/15/2015] [Accepted: 11/06/2015] [Indexed: 01/01/2023] Open
Abstract
STUDY QUESTION Do primordial-primary versus secondary follicles embedded inside a fibrin matrix have different capabilities to survive and grow after isolation and transplantation? SUMMARY ANSWER Mouse primordial-primary follicles showed a lower recovery rate than secondary follicles, but both were able to grow. WHAT IS KNOWN ALREADY Fresh isolated mouse follicles and ovarian stromal cells embedded in a fibrin matrix are capable of surviving and developing after short-term autografting. STUDY DESIGN, SIZE, DURATION In vivo experimental model using 11 donor Naval Medical Research Institute (NMRI) mice and 11 recipient severe combined immunodeficiency (SCID) mice. Both ovaries from all NMRI mice were mechanically disrupted and primordial-primary and secondary follicles were isolated with ovarian stromal cells. They were then encapsulated in a fibrin matrix composed of 12.5 mg/ml of fibrinogen (F12.5) and 1 IU/ml of thrombin (T1) (F12.5/T1), and grafted to the inner part of the peritoneum of SCID mice for 2 and 7 days. PARTICIPANTS/MATERIALS, SETTING, METHODS This study was conducted at the Gynecology Research Unit, Université Catholique de Louvain. All materials were used to conduct histological (H-E staining) and immunohistochemical (Ki67, TUNEL) analyses. MAIN RESULTS AND THE ROLE OF CHANCE Although all grafted fibrin clots were recovered, the follicle recovery rate on day 2 was 16 and 40% for primordial-primary and secondary follicles respectively, while on day 7, it was 6 and 28%. The secondary group showed a significantly higher recovery rate than the primordial-primary group (23%, P-value <0.001). Follicles found in both groups were viable, as demonstrated by live/dead assays, and no difference was observed in the apoptosis rate between groups, as evidenced by TUNEL. Their growth to further stages was confirmed by Ki67 immunostaining. LIMITATIONS, REASONS FOR CAUTION As demonstrated by our results, secondary follicles appear to be more likely to survive and develop than primordial-primary follicles in a fibrin matrix after both periods of grafting. These findings may also be attributed to the specific features of the fibrin matrix, which could benefit larger follicles, but not smaller follicles. WIDER IMPLICATIONS OF THE FINDINGS This study is essential to understanding possible impairment caused by factors such as the isolation procedure or fibrin matrix composition to the survival and development of different follicle stages. It therefore provides the basis for further investigations with longer periods of grafting. STUDY FUNDING/COMPETING INTERESTS This study was supported by grants from the Fonds National de la Recherche Scientifique de Belgique (grant Télévie No. 7.4578.14 and 7.4627.13, grant 5/4/150/5 awarded to Marie-Madeleine Dolmans), Fonds Spéciaux de Recherche, Fondation St Luc, the Foundation Against Cancer, and the Region Wallone (Convention N°6519-OVART) and donations from Mr Pietro Ferrero, Baron Frère and Viscount Philippe de Spoelberch. None of the authors have any competing interests to declare.
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Affiliation(s)
- M C Chiti
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200 Brussels, Belgium
| | - M M Dolmans
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200 Brussels, Belgium Gynecology Department, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - R Orellana
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200 Brussels, Belgium
| | - M Soares
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200 Brussels, Belgium Gynecology Department, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - F Paulini
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200 Brussels, Belgium
| | - J Donnez
- Society for Research into Infertility, Brussels, Belgium
| | - C A Amorim
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200 Brussels, Belgium
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