Eine aktuelle Übersicht über die Einflussfaktoren der Stammzellspender auf das regenerative Potential von Fettgewebsstammzellen

2020 ◽  
Vol 52 (06) ◽  
pp. 521-532
Author(s):  
Constanze Kuhlmann ◽  
Thilo Ludwig Schenck ◽  
Elisabeth Maria Haas ◽  
Riccardo Giunta ◽  
Paul Severin Wiggenhauser
Keyword(s):  
Stem Cells ◽  
Adipose Tissue ◽  
Stromal Vascular Fraction ◽  
National Library ◽  
Regenerative Therapie

Zusammenfassung Hintergrund Nicht nur regenerative Therapie wie zellassistierter Lipotransfer (cell assisted lipotransfer) sondern auch präklinische experimentelle Studien verwenden in der Plastischen Chirurgie Stammzellen aus Fettgewebe, sogenannte Adipose tissue-derived Stem Cells (ASCs). Hierbei haben allerdings vom jeweiligen Stammzellspender abhängige Faktoren einen entscheidenden Einfluss auf die Zellausbeute und das regenerative Potential von ASCs und der Stromal vascular Fraction (SVF). Ziel dieser Übersichtsarbeit war es daher, diese Einflussfaktoren des Stammzellspenders darzustellen und anhand des aktuellen Wissenstands zu beurteilen. Methoden Es erfolgte eine intensive Literaturrecherche in der der National Library of Medicine, mit Fokus auf Einflussfaktoren der Stammzellspender, die eine Beeinflussung der Zellausbeute und des regenerativen Potentials von humanen ASCs und SVF in vorherigen Studien gezeigt haben. Ergebnisse Aktuell gibt es eine Vielzahl von Studien, welche sich mit den Einflussfaktoren des Stammzellspenders auseinandersetzen. Allerdings sind diese Faktoren sehr inhomogen und teilweise sogar widersprüchlich, so dass hier noch weiterer Forschungsbedarf besteht. Dennoch gibt es einige Faktoren, die gemäß der aktuellen Literatur gehäuft untersucht wurden: Alter, Geschlecht, Gewicht, Nebenerkrankungen (z. B. Diabetes, Lipödem) sowie spezielle Medikamente (Antidepressiva, Antihormontherapie) und Chemotherapie. Schlussfolgerung Wir empfehlen, bei experimentellen und klinischen Arbeiten mit ASCs/SVF eine Charakterisierung des Patientenkollektivs zu veröffentlichen, so dass mögliche Beeinflussungen durch oben genannte Faktoren kommuniziert werden und eine bessere Vergleichbarkeit von Studien ermöglicht wird. Darüber hinaus kann aber auch mit einer präzisen Anamnese und körperlichen Untersuchung vorab ein möglichst homogenes Patientenkollektiv für die Sammlung von Proben für wissenschaftliche Arbeiten konstruiert werden. Auch könnten die Ergebnisse dazu beitragen, den Erfolg zukünftiger ASC-basierter Therapien einzuschätzen.

scholarly journals Derivation, characterization, and in vitro cell regeneration of canine white adipose tissue-derived mesenchymal stem cells obtained from a mesenteric region

2021 ◽  
Vol 82 (1) ◽  
Author(s):  
Anirban Mandal ◽  
Ajeet Kumar Jha ◽  
Dew Biswas ◽  
Shyamal Kanti Guha
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Adipose Tissue ◽  
White Adipose Tissue ◽  
Stromal Vascular Fraction ◽  
Cell Regeneration ◽  
Wound Healing Assay ◽  
Chain Reaction ◽  
Polymerase Chain

Abstract Background The study was conducted to assess the characterization, differentiation, and in vitro cell regeneration potential of canine mesenteric white adipose tissue-derived mesenchymal stem cells (AD-MSCs). The tissue was harvested through surgical incision and digested with collagenase to obtain a stromal vascular fraction. Mesenchymal stem cells isolated from the stromal vascular fraction were characterized through flow cytometry and reverse transcription-polymerase chain reaction. Assessment of cell viability, in vitro cell regeneration, and cell senescence were carried out through MTT assay, wound healing assay, and β-galactosidase assay, respectively. To ascertain the trilineage differentiation potential, MSCs were stained with alizarin red for osteocytes, alcian blue for chondrocytes, and oil o red for adipocytes. In addition, differentiated cells were characterized through a reverse transcription-polymerase chain reaction. Results We observed the elongated, spindle-shaped, and fibroblast-like appearance of cells after 72 h of initial culture. Flow cytometry results showed positive expression for CD44, CD90, and negative expression for CD45 surface markers. Population doubling time was found 18–24 h for up to the fourth passage and 30±0.5 h for the fifth passage. A wound-healing assay was used to determine cell migration rate which was found 136.9 ± 4.7 μm/h. We observed long-term in vitro cell proliferation resulted in MSC senescence. Furthermore, we also found that the isolated cells were capable of differentiating into osteogenic, chondrogenic, and adipogenic lineages. Conclusions Mesenteric white adipose tissue was found to be a potential source for isolation, characterization, and differentiation of MSCs. This study might be helpful for resolving the problems regarding the paucity of information concerning the basic biology of stem cells. The large-scale use of AD-MSCs might be a remedial measure in regenerative medicine.

scholarly journals Adipose Derived-Mesenchymal Stem Cells Viability and Differentiating Features for Orthopaedic Reparative Applications: Banking of Adipose Tissue

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Ilaria Roato ◽  
Daniela Alotto ◽  
Dimas Carolina Belisario ◽  
Stefania Casarin ◽  
Mara Fumagalli ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Adipose Tissue ◽  
Articular Cartilage ◽  
Tissue Banking ◽  
Stromal Vascular Fraction ◽  
Single Infusion ◽  
Knee Arthritis ◽  
Symptomatic Knee

Osteoarthritis is characterized by loss of articular cartilage also due to reduced chondrogenic activity of mesenchymal stem cells (MSCs) from patients. Adipose tissue is an attractive source of MSCs (ATD-MSCs), representing an effective tool for reparative medicine, particularly for treatment of osteoarthritis, due to their chondrogenic and osteogenic differentiation capability. The treatment of symptomatic knee arthritis with ATD-MSCs proved effective with a single infusion, but multiple infusions could be also more efficacious. Here we studied some crucial aspects of adipose tissue banking procedures, evaluating ATD-MSCs viability, and differentiation capability after cryopreservation, to guarantee the quality of the tissue for multiple infusions. We reported that the presence of local anesthetic during lipoaspiration negatively affects cell viability of cryopreserved adipose tissue and cell growth of ATD-MSCs in culture. We observed that DMSO guarantees a faster growth of ATD-MSCs in culture than trehalose. At last, ATD-MSCs derived from fresh and cryopreserved samples at −80°C and −196°C showed viability and differentiation ability comparable to fresh samples. These data indicate that cryopreservation of adipose tissue at −80°C and −196°C is equivalent and preserves the content of ATD-MSCs in Stromal Vascular Fraction (SVF), guaranteeing the differentiation ability of ATD-MSCs.

scholarly journals Comparison of infrapatellar and subcutaneous adipose tissue stromal vascular fraction and stromal/stem cells in osteoarthritic subjects

2012 ◽  
Vol 8 (10) ◽  
pp. 757-762 ◽  
Author(s):  
Pedro Pires de Carvalho ◽  
Katie M. Hamel ◽  
Robert Duarte ◽  
Andrew G. S. King ◽  
Masudul Haque ◽  
...  
Keyword(s):  
Stem Cells ◽  
Adipose Tissue ◽  
Subcutaneous Adipose Tissue ◽  
Stromal Vascular Fraction ◽  
Subcutaneous Adipose ◽  
Stromal Stem Cells

scholarly journals Cartilage Regeneration in Human with Adipose Tissue-Derived Stem Cells: Current Status in Clinical Implications

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Jaewoo Pak ◽  
Jung Hun Lee ◽  
Wiwi Andralia Kartolo ◽  
Sang Hee Lee
Keyword(s):  
Stem Cells ◽  
Adipose Tissue ◽  
Platelet Rich Plasma ◽  
Stromal Vascular Fraction ◽  
Cartilage Regeneration ◽  
Clinical Effectiveness ◽  
The Elderly ◽  
Current Status ◽  
Ability To Regenerate ◽  
Underlying Causes

Osteoarthritis (OA) is one of the most common debilitating disorders among the elderly population. At present, there is no definite cure for the underlying causes of OA. However, adipose tissue-derived stem cells (ADSCs) in the form of stromal vascular fraction (SVF) may offer an alternative at this time. ADSCs are one type of mesenchymal stem cells that have been utilized and have demonstrated an ability to regenerate cartilage. ADSCs have been shown to regenerate cartilage in a variety of animal models also. Non-culture-expanded ADSCs, in the form of SVF along with platelet rich plasma (PRP), have recently been used in humans to treat OA and other cartilage abnormalities. These ADSCs have demonstrated effectiveness without any serious side effects. However, due to regulatory issues, only ADSCs in the form of SVF are currently allowed for clinical uses in humans. Culture-expanded ADSCs, although more convenient, require clinical trials for a regulatory approval prior to uses in clinical settings. Here we present a systematic review of currently available clinical studies involving ADSCs in the form of SVF and in the culture-expanded form, with or without PRP, highlighting the clinical effectiveness and safety in treating OA.

Obesity-associated mouse adipose stem cell secretion of monocyte chemotactic protein-1

2007 ◽  
Vol 293 (5) ◽  
pp. E1153-E1158 ◽  
Author(s):  
Hui Ren Zhou ◽  
Eun-Kyoung Kim ◽  
Hyojung Kim ◽  
Kate J. Claycombe
Keyword(s):  
Stem Cells ◽  
Adipose Tissue ◽  
Ex Vivo ◽  
Stromal Vascular Fraction ◽  
Tissue Cell ◽  
Mrna Levels ◽  
Cell Secretion ◽  
Monocyte Chemotactic Protein ◽  
Adipose Tissue Depots ◽  
Chemotactic Protein

Studies showed that monocyte chemotactic protein-1 (MCP-1) concentrations are increased in obesity. In our current study, we demonstrate that plasma MCP-1 level in leptin-deficient ob/ob mice is significantly higher than in lean mice. Furthermore, we determined that basal adipose tissue MCP-1 mRNA levels are significantly higher in ob/ob mice compared with lean mice. To determine the mechanisms underlying obesity-associated increases in plasma and adipose tissue MCP-1 levels, we determined adipose tissue cell type sources of MCP-1 production. Our data show that adipose tissue stem cells (CD34+), macrophages (F4/80+), and stromal vascular fraction (SVF) cells express significantly higher levels of MCP-1 compared with adipocytes under both basal and lipopolysaccharide (LPS)-stimulated conditions. Furthermore, basal and LPS-induced MCP-1 secretion levels were the same for both adipose F4/80+ and CD34+ cells, whereas adipose CD34+ cells have twofold higher cell numbers (30% of total SVF cells) compared with F4/80+ macrophages (15%). Our data also show that CD34+ cells from visceral adipose tissue depots secrete significantly higher levels of MCP-1 ex vivo when compared with CD34+ cells from subcutaneous adipose tissue depots. Taken together, our data suggest that adipose CD34+ stem cells may play an important role in obesity-associated increases in plasma MCP-1 levels.

scholarly journals Recent advances in bone regeneration: The role of adipose tissue-derived stromal vascular fraction and mesenchymal stem cells

2017 ◽  
Vol 3 (1) ◽  
pp. 4 ◽  
Author(s):  
Reggie Hamdy ◽  
Yasir Alabdulkarim ◽  
Bayan Ghalimah ◽  
Mohammad Al-Otaibi ◽  
HadilF Al-Jallad ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Adipose Tissue ◽  
Bone Regeneration ◽  
Stromal Vascular Fraction ◽  
Recent Advances

scholarly journals Characteristics and Potentiality of Human Adipose-Derived Stem Cells (hASCs) Obtained from Enzymatic Digestion of Fat Graft

Cells ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 282 ◽  
Author(s):  
Pietro Gentile ◽  
Maria Piccinno ◽  
Claudio Calabrese
Keyword(s):  
Stem Cells ◽  
Adipose Tissue ◽  
Ex Vivo ◽  
Stromal Vascular Fraction ◽  
Enzymatic Digestion ◽  
Histological Evaluation ◽  
Fat Graft ◽  
Adipose Derived Stem Cells ◽  
Differentiation Potential ◽  
New Therapeutic Approaches

Human adipose-derived stem cells localize in the stromal-vascular portion, and can be ex vivo isolated using a combination of washing steps and enzymatic digestion. For this study, we undertook a histological evaluation of traditional fat graft compared with fat graft enriched with stromal vascular fraction cells isolated by the Celution™ system to assess the interactions between cells and adipose tissue before the breast injection. In addition, we reported on histological analyses of biopsies derived from fat grafted (traditional or enriched with SVFs) in the breast in order to assess the quality of the adipose tissue, fibrosis and vessels. The hASCs derived from enzymatic digestion were systematically characterized for growth features, phenotype and multi-potent differentiation potential. They fulfill the definition of mesenchymal stem cells, albeit with a higher neural phenotype profile. These cells also express genes that constitute the core circuitry of self-renewal such as OCT4, SOX2, NANOG and neurogenic lineage genes such as NEUROD1, PAX6 and SOX3. Such findings support the hypothesis that hASCs may have a potential usefulness in neurodegenerative conditions. These data can be helpful for the development of new therapeutic approaches in personalized medicine to assess safety and efficacy of the breast reconstruction.

scholarly journals The Impact of Lidocaine on Adipose-Derived Stem Cells in Human Adipose Tissue Harvested by Liposuction and Used for Lipotransfer

2020 ◽  
Vol 21 (8) ◽  
pp. 2869
Author(s):  
Felix Grambow ◽  
Rico Rutkowski ◽  
Fred Podmelle ◽  
Katrin Schmoeckel ◽  
Florian Siegerist ◽  
...  
Keyword(s):  
Stem Cells ◽  
Adipose Tissue ◽  
Small Sample Size ◽  
Subcutaneous Fat ◽  
Stromal Vascular Fraction ◽  
Small Sample ◽  
Relative Distribution ◽  
Adipose Derived Stem Cells ◽  
Female Patients ◽  
The Impact

The local anesthetic lidocaine, which has been used extensively during liposuction, has been reported to have cytotoxic effects and therefore would be unsuitable for use in autologous lipotransfer. We evaluated the effect of lidocaine on the distribution, number, and viability of adipose-derived stem cells (ASCs), preadipocytes, mature adipocytes, and leukocytes in the fatty and fluid portion of the lipoaspirate using antibody staining and flow cytometry analyses. Adipose tissue was harvested from 11 female patients who underwent liposuction. Abdominal subcutaneous fat tissue was infiltrated with tumescent local anesthesia, containing lidocaine on the left and lacking lidocaine on the right side of the abdomen, and harvested subsequently. Lidocaine had no influence on the relative distribution, cell number, or viability of ASCs, preadipocytes, mature adipocytes, or leukocytes in the stromal-vascular fraction. Assessing the fatty and fluid portions of the lipoaspirate, the fatty portions contained significantly more ASCs (p < 0.05), stem cells expressing the preadipocyte marker Pref-1 (p < 0.01 w/lidocaine, p < 0.05 w/o lidocaine), and mature adipocytes (p < 0.05 w/lidocaine, p < 0.01 w/o lidocaine) than the fluid portions. Only the fatty portion should be used for transplantation. This study found no evidence that would contraindicate the use of lidocaine in lipotransfer. Limitations of the study include the small sample size and the inclusion of only female patients.

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