scholarly journals Regeneration of human bones in hip osteonecrosis and human cartilage in knee osteoarthritis with autologous adipose-tissue-derived stem cells: a case series

2011 ◽  
Vol 5 (1) ◽  
Author(s):  
Jaewoo Pak

Cartilage regenerative medicine has been met with much interest due to their ability to inhibit disease progression of osteoarthritis (OA). The use of adipose-derived stem cells has been suggested as a reliable method for OA treatment because of their potential to differentiate into a variety of cell lines and their potent capability to self-renewal and repair. The aim of this study is to assess adipose-derived stem cells in combination with PRP ability in treating a patient with knee OA. A 53-year- old man with osteoarthritis was selected for this treatment. Human abdominal subcutaneous adipose sample was obtained from a patient with knee OA. Stem cells were obtained from adipose tissue of abdominal origin by digesting lipoaspirate tissue with collagenase. ADSCs cultured in DMEM medium supplemented with 10% FBS. Also, ADSCs expanded and characterized by flow cytometry. These stem cells, along with platelet-rich plasma and calcium chloride, were injected into the right knee. Pre-treatment and post-treatment MRI scans, physical therapy, and pain score data were then analyzed. The MRI data for the patient demonstrated significant positive changes. Probable cartilage regeneration was sensible in the patient. Along with MRI evidence, the measured physical therapy outcomes, subjective pain, and functional status all improved. Autologous adipose-derived stem cell injection, in conjunction with platelet-rich plasma is a promising minimally invasive therapy for osteoarthritis of human knees. The present clinical case report demonstrated that a combination of percutaneous injection of autologous ADSCs and PRPmay be able to regenerate cartilage in human knee OA.


2016 ◽  
Vol 5 (1) ◽  
pp. 192-200 ◽  
Author(s):  
Jaewoo Pak ◽  
Jung Hun Lee ◽  
Kwang Seung Park ◽  
Byeong Chul Jeong ◽  
Sang Hee Lee

2021 ◽  
Vol 22 (18) ◽  
pp. 9917
Author(s):  
Constanze Kuhlmann ◽  
Thilo L. Schenck ◽  
Attila Aszodi ◽  
Riccardo E. Giunta ◽  
Paul Severin Wiggenhauser

Previous anatomical studies have shown different functional zones in human nasal septal cartilage (NC). These zones differ in respect to histological architecture and biochemical composition. The aim of this study was to investigate the influence of these zones on the fate of stem cells from a regenerative perspective. Therefore, decellularized porcine septal cartilage was prepared and subjected to histological assessment to demonstrate its equivalence to human cartilage. Decellularized porcine NC (DPNC) exposed distinct surfaces depending on two different histological zones: the outer surface (OS), which is equivalent to the superficial zone, and the inner surface (IS), which is equivalent to the central zone. Human adipose tissue-derived stem cells (ASCs) were isolated from the abdominal fat tissue of five female patients and were seeded on the IS and OS of DPNC, respectively. Cell seeding efficiency (CSE), vitality, proliferation, migration, the production of sulfated glycosaminoglycans (sGAG) and chondrogenic differentiation capacity were evaluated by histological staining (DAPI, Phalloidin, Live-Dead), biochemical assays (alamarBlue®, PicoGreen®, DMMB) and the quantification of gene expression (qPCR). Results show that cell vitality and CSE were not influenced by DPNC zones. ASCs, however, showed a significantly higher proliferation and elevated expression of early chondrogenic differentiation, as well as fibrocartilage markers, on the OS. On the contrary, there was a significantly higher upregulation of hypertrophy marker MMP13 (p < 0.0001) and GAG production (p = 0.0105) on the IS, whereas cell invasion into the three-dimensional DPNC was higher in comparison to the OS. We conclude that the zonal-dependent distinct architecture and composition of NC modulates activities of ASCs seeded on DPNC. These findings might be used for engineering of cartilage substitutes needed in facial reconstructive surgery that yield an equivalent histological and functional structure, such as native NC.


2022 ◽  
Vol 11 (1) ◽  
pp. e24111124699
Author(s):  
Laynna de Carvalho Schweich-Adami ◽  
Larissa Corrêa Hermeto ◽  
Silvana Marques Caramalac ◽  
Andréia Conceição Milan Brochado Antoniolli-Silva ◽  
Rodrigo Juliano Oliveira

Introduction: Recent studies have investigated the use of adipose tissue as source of mesenchymal stem cells in the treatment of knee osteoarthritis in humans. However, there are still several protocols being performed. Objective: Analyze the protocols published in the literature in the last ten years and to investigate how they are being carried out and if they are following the criteria adopted by the International Federation for Adipose Therapeutics and Science (IFATS) and the International Society for Cellular Therapy (ISCT). Methodology: Articles from the PubMed, ScienceDirect and Lilacs database published in January / 2010 until the present time, which were evaluated in order to investigate the use of adipose-derived stem cells in the treatment of knee osteoarthritis. Results: Thirty four articles were evaluated in its entiraty. The abdominal area was the most choosen to do the liposuction, however the quantities of adipose tissue removed and the number of cells transplanted was variable.  It is hightlited the enzimatic digestion of adipose tissue with collagenase as extraction method. Only 14 articles complied all the 3 criteria required to prove the real presence of mesenchymal stem cells in the samples that was transplanted. However, all the articles showed improvement of function and pain. Final considerations: Thus, even the results found are promising, the evidence is still limited in humans and the variability of the methodology makes it difficult to standardize the technique, also its implementation as a reference in the treatment of knee osteoarthritis.


Sign in / Sign up

Export Citation Format

Share Document