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Xiong Z, He J, Zhao X, Ye X, Cui M, Fu J, Liu J, Li Q. The oncological safety and long-term cosmetic effect of free dermal fat graft with epidermis removal for breast defect repair in breast conserving surgery. Breast 2024; 73:103622. [PMID: 38190791 PMCID: PMC10788852 DOI: 10.1016/j.breast.2023.103622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/10/2023] [Accepted: 12/10/2023] [Indexed: 01/10/2024] Open
Abstract
BACKGROUND Free dermal fat grafts (FDFG) are used for immediate breast defect repair in breast-conserving surgery (BCS), and have achieved satisfactory immediate postoperative cosmetic effects (Sawai et al., 2004) [1]. However, the oncologic safety and long-term cosmetic outcomes of these surgical procedures remain unknown. Therefore, t,in this study, we aim to investigate the oncological safety and long-term cosmetic outcomes of FDFG in patients with breast cancer. METHODS This matched retrospective case-control study included patients with non-special types of breast cancer who underwent FDFG for breast defect repair after BCS or BCS alone at two breast cancer research centers in Guangxi Province, China, from January 2016 to December 2019. The patients were divided into either the FDFG or BCS group. Control cases were screened using propensity score matching, and survival analysis and cosmetic evaluations were performed. RESULTS A total of 442 patients with breast cancer were included in the study. After 1:4 propensity score matching, 53 and 212 patients were included in the FDFG and BCS groups, respectively. The median follow-up time was 49.9 (9.0-76.0) months. The rate of local recurrence in the FDFG group (9.4 %) was significantly higher than that in the BCS group (1.9 %; p < 0.05). The total cosmetic evaluation score was significantly higher in the BCS group 18 months after surgery than in the FDFG group (p < 0.05). CONCLUSIONS In this retrospective study, FDFG was significantly associated with an increased risk of local recurrence. Further prospective studies are required to confirm these results. No significant difference in long-term cosmetic effects were observed for FDFG than for BCS alone for immediate breast defect repair.
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Affiliation(s)
- Zikui Xiong
- Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, Traditional Chinese Medicine Hospital of Guilin, China.
| | - Jindi He
- Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, China.
| | - Xin Zhao
- Department of Radiology, The Affiliated Tumor Hospital of Guangxi Medical University, China.
| | - Xinqing Ye
- Department of Pathology, The Affiliated Tumor Hospital of Guangxi Medical University, China.
| | - Manlu Cui
- Department of Pathology, The Affiliated Tumor Hospital of Guangxi Medical University, China.
| | - Juan Fu
- Department of Pathology, The Affiliated Tumor Hospital of Guangxi Medical University, China.
| | - Jianlun Liu
- Department of Pathology, The Affiliated Tumor Hospital of Guangxi Medical University, China.
| | - Qiuyun Li
- Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, China.
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Zhu Q, Cao Y, Yuan J, Hu Y. Adipose-derived stem cell exosomes promote tumor characterization and immunosuppressive microenvironment in breast cancer. Cancer Immunol Immunother 2024; 73:39. [PMID: 38294569 PMCID: PMC10830720 DOI: 10.1007/s00262-023-03584-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 11/13/2023] [Indexed: 02/01/2024]
Abstract
Adipose-derived stem cells (ASC) or autologous fat transplantation could be used to ameliorate breast cancer postoperative deformities. This study aims to explore the action of ASC and ASC-exosomes (ASC-exos) in breast cancer characterization and tumor microenvironment immunity, which provided a new method into the application of ASC-exos. ASC were extracted from human adipose tissue for the isolation and verification of ASC-exos. ASC-exos were co-cultured with CD4+T cells, CD14+ monocytes and MCF-7 cells, respectively. The tumor formation of nude mice was also constructed. Cell characterization was determined by CCK8, scratch assay, and Transwell. Hematoxylin-eosin (HE), immunohistochemistry (IHC) and immunofluorescence (IF) staining were used to observe the histopathology and protein expression. CD4+T cell and CD14+ monocytes differentiation was detected by flow cytometry. Western blot, qRT-PCR and RNAseq were used to detect the action of ASC-exos on gene and protein expression. CD4+T cells could take up ASC-exos. ASC-exos inhibited Th1 and Th17 differentiation and promoted Treg differentiation of CD4+T cells. ASC-exos inhibited M1 differentiation and promoted M2 differentiation of CD14+ monocytes. ASC-exos promoted the migration, proliferation, and invasion, while inhibited apoptosis of MCF-7 cells. ASC-exos promoted the tumor formation of breast cancer. The effect of ASC-exos on tumor microenvironment immunity was in accordance with the above in vitro results. TOX, CD4 and LYZ1 genes were upregulated, while Mettl7b and Serpinb2 genes were downregulated in ASC-exos group. Human T-cell leukemia virus 1 infection pathway was significantly enriched in ASC-exos. Thus, ASC-exos promoted breast cancer characterization and tumor microenvironment immunosuppression by regulating macrophage and T cell differentiation.
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Affiliation(s)
- Qin Zhu
- Department of General Surgery, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China
| | - Yukun Cao
- Department of General Surgery, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China
| | - Jiaqi Yuan
- Department of General Surgery, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China
| | - Yu Hu
- Department of General Surgery, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, 410008, Hunan, People's Republic of China.
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Diehm YF, Thomé J, Will P, Kotsougiani-Fischer D, Haug VF, Siegwart LC, Kneser U, Fischer S. Stem Cell-Enriched Hybrid Breast Reconstruction Reduces Risk for Capsular Contracture in a Hybrid Breast Model. Plast Reconstr Surg 2023; 152:572-580. [PMID: 36735813 DOI: 10.1097/prs.0000000000010260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Hybrid breast reconstruction (HBR) combines silicone implants with fat grafting to improve implant coverage, treating local tissue deficiencies and leading to a more natural breast appearance. Recent data also indicated less capsular contracture after HBR. The authors developed a novel technique and animal model of cell-assisted (CA) HBR to illuminate its effects on capsular contracture. METHODS Animals received silicone implants in a dorsal submuscular pocket. Although animals of the HBR group received fat grafting around the implant without stem cell enrichment, rats of the CA-HBR1 and the CA-HBR2 groups received stem cell-enriched fat grafting with 2 × 10 6 and 4 × 10 6 adipose-derived stem cells immediately after implant insertion. On day 60, animals underwent sonography and elastography imaging and were euthanized, and outcome analysis was performed by means of histology, immunohistochemistry, chemical collagen quantification, and gene expression analysis. RESULTS With this novel technique, long-term survival of adipose-derived stem cells within the implant pocket was demonstrated after 60 days after implant insertion. CA-HBR led to significantly reduced thickness and collagen density of capsular contractures. In addition, CA-HBR resulted in reduced fibrotic responses with less occurrence of collagen type I and transforming growth factor-β in capsule tissue. Moreover, the addition of stem cells suppressed fibrotic and inflammatory responses on a genetic level with significant underexpression of collagen type I and transforming growth factor-β1. CONCLUSIONS With this new technique and animal model, the authors observed a preventive effect on capsular contracture substantiating the basis of clinical outcomes of HBR. The authors propose that the addition of stem cells to HBR might booster its beneficial results. CLINICAL RELEVANCE STATEMENT Stem cell-enriched fat grafting around silicone implants may reduce the risk for capsular contracture after silicone breast implantation. While fat grafting alone already shows beneficial effects, the addition of stem cells to the fat graft can potentiate this effect.
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Affiliation(s)
- Yannick F Diehm
- From the Department of Hand, Plastic, and Reconstructive Surgery, Burn Trauma Center, BG Trauma Center Ludwigshafen; University of Heidelberg
| | - Julia Thomé
- From the Department of Hand, Plastic, and Reconstructive Surgery, Burn Trauma Center, BG Trauma Center Ludwigshafen; University of Heidelberg
| | - Patrick Will
- From the Department of Hand, Plastic, and Reconstructive Surgery, Burn Trauma Center, BG Trauma Center Ludwigshafen; University of Heidelberg
| | - Dimitra Kotsougiani-Fischer
- From the Department of Hand, Plastic, and Reconstructive Surgery, Burn Trauma Center, BG Trauma Center Ludwigshafen; University of Heidelberg
- Private Practice for Plastic and Aesthetic Surgery, Aesthetikon Mannheim and Heidelberg
| | - Valentin F Haug
- From the Department of Hand, Plastic, and Reconstructive Surgery, Burn Trauma Center, BG Trauma Center Ludwigshafen; University of Heidelberg
| | - Laura C Siegwart
- From the Department of Hand, Plastic, and Reconstructive Surgery, Burn Trauma Center, BG Trauma Center Ludwigshafen; University of Heidelberg
| | - Ulrich Kneser
- From the Department of Hand, Plastic, and Reconstructive Surgery, Burn Trauma Center, BG Trauma Center Ludwigshafen; University of Heidelberg
| | - Sebastian Fischer
- From the Department of Hand, Plastic, and Reconstructive Surgery, Burn Trauma Center, BG Trauma Center Ludwigshafen; University of Heidelberg
- Private Practice for Plastic and Aesthetic Surgery, Aesthetikon Mannheim and Heidelberg
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Wu Y, Li X, Li Q, Cheng C, Zheng L. Adipose tissue-to-breast cancer crosstalk: Comprehensive insights. Biochim Biophys Acta Rev Cancer 2022; 1877:188800. [PMID: 36103907 DOI: 10.1016/j.bbcan.2022.188800] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/29/2022] [Accepted: 09/06/2022] [Indexed: 10/14/2022]
Abstract
The review focuses on mechanistic evidence for the link between obesity and breast cancer. According to the IARC study, there is sufficient evidence that obesity is closely related to a variety of cancers. Among them, breast cancer is particularly disturbed by adipose tissue due to the unique histological structure of the breast. The review introduces the relationship between obesity and breast cancer from two aspects, including factors that promote tumorigenesis or metastasis. We summarize alterations in adipokines and metabolic pathways that contribute to breast cancer development. Breast cancer metastasis is closely related to obesity-induced pro-inflammatory microenvironment, adipose stem cells, and miRNAs. Based on the mechanism by which obesity causes breast cancer, we list possible therapeutic directions, including reducing the risk of breast cancer and inhibiting the progression of breast cancer. We also discussed the risk of autologous breast remodeling and fat transplantation. Finally, the causes of the obesity paradox and the function of enhancing immunity are discussed. Evaluating the balance between obesity-induced inflammation and enhanced immunity warrants further study.
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Affiliation(s)
- Yuan Wu
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University School of Medicine Affiliated Ruijin Hospital, Shanghai 200025, China
| | - Xu Li
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, PR China
| | - Qiong Li
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University School of Medicine Affiliated Ruijin Hospital, Shanghai 200025, China
| | - Chienshan Cheng
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University School of Medicine Affiliated Ruijin Hospital, Shanghai 200025, China
| | - Lan Zheng
- Department of Traditional Chinese Medicine, Shanghai Jiao Tong University School of Medicine Affiliated Ruijin Hospital, Shanghai 200025, China.
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Schlottmann F, Bucan V, Strauß S, Koop F, Vogt PM, Mett TR. Influence of Tamoxifen on Different Biological Pathways in Tumorigenesis and Transformation in Adipose-Derived Stem Cells, Mammary Cells and Mammary Carcinoma Cell Lines—An In Vitro Study. Cells 2022; 11:cells11172733. [PMID: 36078139 PMCID: PMC9454616 DOI: 10.3390/cells11172733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/17/2022] [Accepted: 08/30/2022] [Indexed: 12/24/2022] Open
Abstract
Breast carcinoma is one of the most common malignant tumors in women. In cases of hormone-sensitive cells, tamoxifen as an anti-estrogenic substance is a first line medication in the adjuvant setting. The spectrum of autologous breast reconstructions ranges from fat infiltrations to complex microsurgical procedures. The influence of adipose-derived stem cells (ASC) on the tumor bed and a possibly increased recurrence rate as a result are critically discussed. In addition, there is currently no conclusive recommendation regarding tamoxifen-treated patients and autologous fat infiltrations. The aim of the present study was to investigate the effect of tamoxifen on the gene expression of a variety of genes involved in tumorigenesis, cell growth and transformation. Mammary epithelial cell line and mammary carcinoma cell lines were treated with tamoxifen in vitro as well as co-cultured with ASC. Gene expression was quantified by PCR arrays and showed increased expression in the mammary carcinoma cell lines with increasing time of treatment and concentration of tamoxifen. The data presented can be considered as an addition to the controversial discussion on the relationship between ASC and breast carcinoma cells. Further studies are needed to quantify the in vivo interaction of ASC and mammary carcinoma cells and to conclusively assess the impact of tamoxifen in reconstructive cases with fat grafting.
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Semsarzadeh N, Khetarpal S. Rise of stem cell therapies in aesthetics. Clin Dermatol 2022; 40:49-56. [DOI: 10.1016/j.clindermatol.2021.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Exosomes are nano-sized extracellular vesicles (30–160 nm diameter) with lipid bilayer membrane secrete by various cells that mediate the communication between cells and tissue, which contain a variety of non-coding RNAs, mRNAs, proteins, lipids and other functional substances. Adipose tissue is important energy storage and endocrine organ in the organism. Recent studies have revealed that adipose tissue-derived exosomes (AT-Exosomes) play a critical role in many physiologically and pathologically functions. Physiologically, AT-Exosomes could regulate the metabolic homoeostasis of various organs or cells including liver and skeletal muscle. Pathologically, they could be used in the treatment of disease and or that they may be involved in the progression of the disease. In this review, we describe the basic principles and methods of exosomes isolation and identification, as well as further summary the specific methods. Moreover, we categorize the relevant studies of AT-Exosomes and summarize the different components and biological functions of mammalian exosomes. Most importantly, we elaborate AT-Exosomes crosstalk within adipose tissue and their functions on other tissues or organs from the physiological and pathological perspective. Based on the above analysis, we discuss what remains to be discovered problems in AT-Exosomes studies and prospect their directions needed to be further explored in the future.
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Affiliation(s)
- Rui Zhao
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&f University, Yangling, China
| | - Tiantian Zhao
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&f University, Yangling, China
| | - Zhaozhao He
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&f University, Yangling, China
| | - Rui Cai
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&f University, Yangling, China
| | - Weijun Pang
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&f University, Yangling, China
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Autogenous Fat Grafting to the Breast and Gluteal Regions: Safety Profile Including Risks and Complications. Plast Reconstr Surg 2019; 143:1625-1632. [PMID: 31136476 DOI: 10.1097/prs.0000000000005617] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Given the widespread utility and therapeutic potential of autogenous fat grafting, plastic surgeons should be familiar with its safety profile and associated adverse events. This article provides a critical review of the literature and delineates risk factors associated with various complications when grafting to the breast and gluteal regions. The majority of adverse events are related to fat necrosis and require minimal diagnostic or therapeutic intervention. Larger graft volumes, as in cosmetic augmentation, are associated with higher incidences of fatty necrosis. The oncologic safety of fat grafting is supported by multiple clinical studies with thousands of breast cancer patients, albeit predominantly retrospective in nature. Although less frequent, serious complications include fat emboli during gluteal augmentation. Identification of associated risk factors and implementation of proper surgical techniques may minimize the occurrence of life-threatening complications.
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Sorrentino L, Regolo L, Scoccia E, Petrolo G, Bossi D, Albasini S, Caruso A, Vanna R, Morasso C, Mazzucchelli S, Truffi M, Corsi F. Autologous fat transfer after breast cancer surgery: An exact-matching study on the long-term oncological safety. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2019; 45:1827-1834. [PMID: 31133371 DOI: 10.1016/j.ejso.2019.05.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/18/2019] [Accepted: 05/13/2019] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Autologous fat transfer (AFT) is widely adopted for breast reconstruction, but its long-term oncologic safety is still not clearly established. The aim of the present study was to compare the 10-year loco-regional recurrence (LRR)-free and distant metastases (DM)-free survival probabilities in AFT vs. control patients, also evaluating the impact of AFT in different intrinsic molecular subtypes of breast cancer. MATERIALS AND METHODS 464 AFT patients were exactly matched with a cohort of 3100 control patients treated between 2007 and 2017. A multivariate survival analysis was performed accounting for all variables related to LRR and DM, including adjuvant/neoadjuvant treatments. End-points were analyzed both overall and in each molecular subtype. RESULTS LRR occurred in 6.4% of AFT and in 5.0% of control patients (p = 0.42), while DM were observed respectively in 7.7% and 5.4% of cases (p = 0.20). AFT showed no effect on the 10-year LRR-free survival probability (adjusted HR 0.87, 95%CI 0.43-1.76, p = 0.69) or the 10-year DM-free survival probability (adjusted HR 0.82, 95%CI 0.43-1.57, p = 0.55). Luminal A patients treated by AFT showed a decreased LRR-free survival probability (HR 2.38, 95%CI 0.91-6.17, Log-Rank p = 0.07), which was significantly lower than controls after 80 months (Log-Rank p = 0.02). No differences in the 10-year event-free survival probability were found in Luminal B, HER2-positive or triple-negative patients. CONCLUSION AFT does not increase breast cancer recurrence, with the possible exception of late LRRs for Luminal A patients, but further clinical and preclinical data are required to better clarify this data. The use of AFT should not be discouraged.
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Affiliation(s)
- Luca Sorrentino
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, via G. B. Grassi 74, 20157, Milan, Italy
| | - Lea Regolo
- Surgery Department, Breast Unit, Istituti Clinici Scientifici Maugeri IRCCS, via Maugeri 4, 27100, Pavia, Italy
| | - Elisabetta Scoccia
- Surgery Department, Breast Unit, Istituti Clinici Scientifici Maugeri IRCCS, via Maugeri 4, 27100, Pavia, Italy
| | - Gianfranco Petrolo
- Surgery Department, Breast Unit, Istituti Clinici Scientifici Maugeri IRCCS, via Maugeri 4, 27100, Pavia, Italy
| | - Daniela Bossi
- Surgery Department, Breast Unit, Istituti Clinici Scientifici Maugeri IRCCS, via Maugeri 4, 27100, Pavia, Italy
| | - Sara Albasini
- Surgery Department, Breast Unit, Istituti Clinici Scientifici Maugeri IRCCS, via Maugeri 4, 27100, Pavia, Italy
| | - Annalisa Caruso
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, via G. B. Grassi 74, 20157, Milan, Italy
| | - Renzo Vanna
- Nanomedicine and Molecular Imaging Lab, Istituti Clinici Scientifici Maugeri IRCCS, via Maugeri 4, 27100, Pavia, Italy
| | - Carlo Morasso
- Nanomedicine and Molecular Imaging Lab, Istituti Clinici Scientifici Maugeri IRCCS, via Maugeri 4, 27100, Pavia, Italy
| | - Serena Mazzucchelli
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, via G. B. Grassi 74, 20157, Milan, Italy
| | - Marta Truffi
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, via G. B. Grassi 74, 20157, Milan, Italy
| | - Fabio Corsi
- Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, via G. B. Grassi 74, 20157, Milan, Italy; Surgery Department, Breast Unit, Istituti Clinici Scientifici Maugeri IRCCS, via Maugeri 4, 27100, Pavia, Italy.
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Interaction of Adipose-Derived Stromal Cells with Breast Cancer Cell Lines. Plast Reconstr Surg 2019; 144:207e-217e. [DOI: 10.1097/prs.0000000000005839] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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11
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Making Sense of Stem Cells and Fat Grafting in Plastic Surgery: The Hype, Evidence, and Evolving U.S. Food and Drug Administration Regulations. Plast Reconstr Surg 2019; 143:417e-424e. [PMID: 30688913 DOI: 10.1097/prs.0000000000005207] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Autologous fat grafting and adipose-derived stem cells are two distinct entities with two different risk profiles, and should be regulated as such. Autologous fat grafting prepared with the additional step of stromal vascular fraction isolation is considered a form of "stem cell therapy" given the high concentration of stem cells found in stromal vascular fraction. Much ambiguity existed in the distinction between autologous fat grafting and stromal vascular fraction initially, in terms of both their biological properties and how they should be regulated. The market has capitalized on this in the past decade to sell unproven "stem cell" therapies to unknowing consumers while exploiting the regulatory liberties of traditional fat grafting. This led to a Draft Guidance from the U.S. Food and Drug Administration in 2014 proposing stricter regulations on fat grafting in general, which in turn elicited a response from plastic surgeons, who have safely used autologous fat grafting in the clinical setting for over a century. After a series of discussions, the U.S. Food and Drug Administration released its Final Guidance in November of 2017, which established clear distinctions between autologous fat grafting and stromal vascular fraction and their separate regulations. By educating ourselves on the U.S. Food and Drug Administration's final stance on fat grafting and stem cell therapy, we can learn how to navigate the regulatory waters for the two entities and implement their clinical use in a responsible and informed manner.
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12
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Chen Y, He Y, Wang X, Lu F, Gao J. Adipose‑derived mesenchymal stem cells exhibit tumor tropism and promote tumorsphere formation of breast cancer cells. Oncol Rep 2019; 41:2126-2136. [PMID: 30816504 PMCID: PMC6412463 DOI: 10.3892/or.2019.7018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 01/25/2019] [Indexed: 12/12/2022] Open
Abstract
Mesenchymal stem cells reportedly have a marked effect on tumor growth or suppression. However, it remains uncertain whether adipose-derived mesenchymal stem cells (ADSCs) from grafted fat can contribute to breast cancer growth and recurrence. In the present study, interactions between ADSCs and MCF-7 breast cancer cells were evaluated in a Matrigel co-culture system and in an in vivo nude mouse model. Results suggested that MCF-7 cells exerted tumor tropism effects on ADSCs and this may be regulated by chemokines, such as the macrophage inflammatory protein (MIP)-1δ and MIP-3α. Additionally, ADSCs significantly induced tumorsphere formation in vitro and promoted tumorigenicity in vivo. RT-qPCR analysis indicated that tumorsphere formation by MCF-7 cells was associated with the induction of stem-like properties, which was mediated by epithelial-mesenchymal transition. Together, the present findings indicated that ADSCs exhibit tropism and induce tumorsphere formation of MCF-7 cells.
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Affiliation(s)
- Yanqing Chen
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Yunfan He
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Xuecen Wang
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Feng Lu
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Jianhua Gao
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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13
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Baaße A, Juerß D, Reape E, Manda K, Hildebrandt G. Promoting effects of adipose-derived stem cells on breast cancer cells are reversed by radiation therapy. Cytotechnology 2017; 70:701-711. [PMID: 29188405 DOI: 10.1007/s10616-017-0172-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 11/15/2017] [Indexed: 12/19/2022] Open
Abstract
Partial breast irradiation of early breast cancer patients after lumpectomy and the use of endogenous adipose tissue (AT) for breast reconstruction are promising applications to reduce the side effects of breast cancer therapy. This study tries to investigate the possible risks associated with these therapeutic approaches. It also examines the influence of adipose derived stem cells (ADSCs) as part of the breast cancer microenvironment, and endogenous AT on breast cancer cells following radiation therapy. ADSCs, isolated from human reduction mammoplasties of healthy female donors, exhibited multilineage capacity and specific surface markers. The promoting effects of ADSCs on the growth and survival fraction of breast cancer cells were reversed by treatment with high (8 Gy) or medium (2 Gy) radiation doses. In addition, a suppressing influence on breast cancer growth could be detected by co-culturing with irradiated ADSCs (8 Gy). Furthermore the clonogenic survival of unirradiated tumor cells was reduced by medium of irradiated ADSCs. In conclusion, radiation therapy changed the interactions of ADSCs and breast cancer cells. On the basis of our work, the importance of further studies to exclude potential risks of ADSCs in regenerative applications and radiotherapy has been emphasized.
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Affiliation(s)
- Annemarie Baaße
- Department of Radiotherapy and Radiation Oncology, University Medical Centre Rostock, Suedring 75, 18059, Rostock, Germany.
| | - Dajana Juerß
- Department of Radiotherapy and Radiation Oncology, University Medical Centre Rostock, Suedring 75, 18059, Rostock, Germany
| | - Elaine Reape
- Department of Radiotherapy and Radiation Oncology, University Medical Centre Rostock, Suedring 75, 18059, Rostock, Germany
| | - Katrin Manda
- Department of Radiotherapy and Radiation Oncology, University Medical Centre Rostock, Suedring 75, 18059, Rostock, Germany
| | - Guido Hildebrandt
- Department of Radiotherapy and Radiation Oncology, University Medical Centre Rostock, Suedring 75, 18059, Rostock, Germany
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Liu W, Fu X, Yang Z, Li S, Cao Y, Li Q, Luan J. Moderate intermittent negative pressure increases invasiveness of MDA-MB-231 triple negative breast cancer cells. Breast 2017; 38:14-21. [PMID: 29182982 DOI: 10.1016/j.breast.2017.11.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 10/23/2017] [Accepted: 11/10/2017] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND To investigate the effect moderate intermittent negative pressure breast reconstructive model exerts on human triple negative breast cancer cell (TNBC) invasion and explore the related mechanism. METHODS The human TNBC cell line MDA-MB-231 was used. Cells in external volume expansion (EVE) group were exposed to an intermittent -25 mmHg for 12 h; the pressure for non-EVE group was constantly 0 mmHg. In vivo, MDA-MB-231 cell suspensions were injected subcutaneously into dorsal skin of nude mice (n = 27 mice/group). Tumors on mice in EVE group received -25 mmHg suction 3 h/day; while mice in non-EVE group were under normal pressure. Cell invasion assay, ELISA, RT-PCR, western blot analysis and immunohistochemistry were used to evaluate the inflammation, epithelial-mesenchymal transition (EMT) and angiogenesis between the two groups in both vitro and vivo experiments. RESULTS MDA-MB-231 cells in the EVE group were more invasive and had higher expressions of IL-8 (30.02 ± 10.44 pg/ml vs. 18.82 ± 9.26 pg/ml, P < 0.05) and TNF-α (20.59 ± 4.72 pg/ml vs. 14.10 ± 3.36 pg/ml, P < 0.05) than the non-EVE group. Grafted MDA-MB-231 tumors in EVE group showed a more obvious epithelial-mesenchymal transition at 2 week and better angiogenesis at 2 and 4 week, respectively. CONCLUSION Moderate intermittent negative pressure induces MDA-MB-231 cells to be more invasive. Future studies should figure out other effects this intervention may bring. Clinical studies should also be conducted to further evaluate its safety and optimize the clinical model.
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Affiliation(s)
- Wenyue Liu
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 33 Badachu Rd., Shijingshan District, Beijing, 100144, PR China; Tissue Engineering and Wound Healing Laboratory, Department of Surgery, Division of Plastic Surgery, Brigham and Women 's Hospital and Harvard Medical School, 75 Francis Street, Boston, MA, 02115-6195, United States
| | - Xin Fu
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 33 Badachu Rd., Shijingshan District, Beijing, 100144, PR China
| | - Zhigang Yang
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 33 Badachu Rd., Shijingshan District, Beijing, 100144, PR China
| | - Shangshan Li
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 33 Badachu Rd., Shijingshan District, Beijing, 100144, PR China
| | - Yan Cao
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 33 Badachu Rd., Shijingshan District, Beijing, 100144, PR China
| | - Qiuchen Li
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 33 Badachu Rd., Shijingshan District, Beijing, 100144, PR China
| | - Jie Luan
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 33 Badachu Rd., Shijingshan District, Beijing, 100144, PR China.
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15
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The impact of the Biomolecular Era on breast cancer surgery. Surgeon 2017; 15:169-181. [DOI: 10.1016/j.surge.2016.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 09/14/2016] [Accepted: 09/18/2016] [Indexed: 01/10/2023]
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16
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Discussion: Fat Grafting after Invasive Breast Cancer: A Matched Case-Control Study. Plast Reconstr Surg 2017; 139:1297-1299. [PMID: 28538547 DOI: 10.1097/prs.0000000000003391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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In Vitro Effects of Adipose-Derived Stem Cells on Breast Cancer Cells Harvested From the Same Patient. Ann Plast Surg 2017; 76 Suppl 3:S241-5. [PMID: 27070671 DOI: 10.1097/sap.0000000000000802] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Fat grafting for breast cancer (BrCa) reconstruction and breast augmentation has become increasingly more popular. A major area of debate and controversy is the effect of adipose-derived stem cells (ASCs) on remnant or undetected BrCa cells. We investigate the in vitro response of BrCa to ASCs in a coculture model with regards to cell migration. METHODS The study was approved by the institutional review board. BrCa and adipose tissue specimens either from subcutaneous breast tissue or abdominal lipoaspirate were obtained from the same patient. BrCa cells and ASCs were harvested with either explant culture and/or enzymatic digestion. Tissues were grown in cell culture flasks until adequate cell libraries were established. Adipose-derived stem cells from adipose specimens were characterized with flow cytometry. Immunofluorescence (IF) staining of the initial cell population harvested from the BrCa specimens confirmed the presence of CD24, an epithelial marker of BrCa. A homogenous CD 24+/CD 90- BrCa cell population was obtained with flowcytometric cell sorting. The in vitro migration of BrCa cells was examined in coculture with and without ASCs. RESULTS Adipose-derived stem cells harvested from the adipose specimens were positive for mesenchymal stem cell markers CD 105, CD 90, CD 73, and CD 44 and negative for lymphocyte cell marker CD 34 and leukocyte marker CD 45. The percentage of the CD 24+/CD 90- BrCa cells in the initial cell population harvested from BrCa specimens was 0.61%. The BrCa cells morphologically had large nuclei and small cytoplasm in clusters under the light microscope, suggesting a cancer cell phenotype. CD 24 expression on the surface of BrCa cells was confirmed with IF staining. The number of BrCa cells migrated in ASCs coculture was approximately 10 times higher than the number of BrCa cells migrated in BrCa cell only cultures. CONCLUSIONS Adipose-derived stem cells significantly increase the migration capacity of BrCa cells in vitro in cocultures. This should be taken into consideration when performing fat grafting to the breast especially in patients with a history of BrCa or strong family history of BrCa.
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Zhang C, Yang SJ, Wen Q, Zhong JF, Chen XL, Stucky A, Press MF, Zhang X. Human-derived normal mesenchymal stem/stromal cells in anticancer therapies. J Cancer 2017; 8:85-96. [PMID: 28123601 PMCID: PMC5264043 DOI: 10.7150/jca.16792] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 09/18/2016] [Indexed: 12/14/2022] Open
Abstract
The tumor microenvironment (TME) not only plays a pivotal role during cancer progression and metastasis, but also has profound effects on therapeutic efficacy. Stromal cells of the TME are increasingly becoming a key consideration in the development of active anticancer therapeutics. However, dispute concerning the role of stromal cells to fight cancer continues because the use of mesenchymal stem/stromal cells (MSCs) as an anticancer agent is dependent on the specific MSCs subtype, in vitro or in vivo conditions, factors secreted by MSCs, types of cancer cell lines and interactions between MSCs, cancer cells and host immune cells. In this review, we mainly focus on the role of human-derived normal MSCs in anticancer therapies. We first discuss the use of different MSCs in the therapies for various cancers. We then focus on their anticancer mechanism and clinical application.
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Affiliation(s)
- Cheng Zhang
- Department of Hematology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, People's Republic of China.; Division of Periodontology, Diagnostic Sciences & Dental Hygiene, and Division of Biomedical Sciences, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, 90033, USA.; Norris Cancer Center, University of Southern California, Los Angeles, CA, 90033, USA
| | - Shi-Jie Yang
- Department of Hematology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, People's Republic of China.; Division of Periodontology, Diagnostic Sciences & Dental Hygiene, and Division of Biomedical Sciences, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, 90033, USA.; Norris Cancer Center, University of Southern California, Los Angeles, CA, 90033, USA
| | - Qin Wen
- Department of Hematology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, People's Republic of China.; Division of Periodontology, Diagnostic Sciences & Dental Hygiene, and Division of Biomedical Sciences, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, 90033, USA.; Norris Cancer Center, University of Southern California, Los Angeles, CA, 90033, USA
| | - Jiang F Zhong
- Division of Periodontology, Diagnostic Sciences & Dental Hygiene, and Division of Biomedical Sciences, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, 90033, USA.; Norris Cancer Center, University of Southern California, Los Angeles, CA, 90033, USA
| | - Xue-Lian Chen
- Division of Periodontology, Diagnostic Sciences & Dental Hygiene, and Division of Biomedical Sciences, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, 90033, USA.; Norris Cancer Center, University of Southern California, Los Angeles, CA, 90033, USA
| | - Andres Stucky
- Division of Periodontology, Diagnostic Sciences & Dental Hygiene, and Division of Biomedical Sciences, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, 90033, USA.; Norris Cancer Center, University of Southern California, Los Angeles, CA, 90033, USA
| | - Michael F Press
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Xi Zhang
- Department of Hematology, Xinqiao Hospital, Third Military Medical University, Chongqing, 400037, People's Republic of China.; Division of Periodontology, Diagnostic Sciences & Dental Hygiene, and Division of Biomedical Sciences, Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, 90033, USA.; Norris Cancer Center, University of Southern California, Los Angeles, CA, 90033, USA
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The Oncologic Safety of Breast Fat Grafting and Contradictions Between Basic Science and Clinical Studies: A Systematic Review of the Recent Literature. Ann Plast Surg 2016; 75:471-9. [PMID: 26360655 DOI: 10.1097/sap.0000000000000604] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Fat grafting is increasingly popular and is becoming a common practice in plastic surgery for postmastectomy breast reconstruction and aesthetic breast augmentation; however, concerns over the oncologic safety remains a controversial and hot topic among scientists and surgeons. Basic science and laboratory research repeatedly show a potentially dangerous effect of adipose-derived stem cells on breast cancer cells; however, clinical research, although limited, continually fails to show an increase in breast cancer recurrence after breast fat grafting, with the exception of 1 small study on a subset patient population with intraepithelial neoplasm of the breast. The aim of this review is to summarize the recent conflicting basic science and clinical data to better understand the safety of breast fat grafting from an oncological perspective.
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Potential Safety Loophole of Fat Grafting in Breast Cancer Patients. Aesthetic Plast Surg 2016; 40:380-6. [PMID: 27071383 DOI: 10.1007/s00266-016-0634-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 03/16/2016] [Indexed: 12/19/2022]
Abstract
UNLABELLED Autologous fat grafting (AFG) accounts for 9.1 % of all cosmetic surgical procedures in the world. Its use has been increasing tremendously in breast reconstruction and produces satisfying outcomes. However, the lack of standard guidelines for routine screening protocols in breast cancer patients before and after AFG warrants consideration of the safety of AFG use in post-mastectomy and post-lumpectomy reconstruction. This manuscript examines AFG in breast reconstruction publications and details the complications, the mechanism of AFG, as well as the relationship between adipose stem cells (ASCs) and cancer recurrence. The ASCs transferred in AFG act as multiple potent stem cells, which can impact cancer recurrence in various ways. Both in vitro and in vivo studies show that ASCs can stimulate the recurrence of breast cancer. Based on a review of existing evidence, we provide recommendations and guidelines for AFG use in breast reconstruction to aid in clinical decision-making. Further investigations are needed to evaluate the long-term clinical safety of AFG as well as the proposed guidelines. NO LEVEL ASSIGNED This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.
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22
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Opposite Effects of Soluble Factors Secreted by Adipose Tissue on Proliferating and Quiescent Osteosarcoma Cells. Plast Reconstr Surg 2016; 137:865-875. [DOI: 10.1097/01.prs.0000479989.88114.8b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Reichenberger MA, Mueller W, Hartmann J, Diehm Y, Lass U, Koellensperger E, Leimer U, Germann G, Fischer S. ADSCs in a fibrin matrix enhance nerve regeneration after epineural suturing in a rat model. Microsurgery 2015; 36:491-500. [DOI: 10.1002/micr.30018] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 11/14/2015] [Accepted: 12/08/2015] [Indexed: 01/05/2023]
Affiliation(s)
- Matthias A. Reichenberger
- ETHIANUM-Clinic for Plastic and Reconstructive Surgery; Aesthetic and Preventive Medicine at Heidelberg University Hospital; Heidelberg Germany
| | - Wolf Mueller
- University Hospital Leipzig, Department of Neuropathology; University of Leipzig; Leipzig Germany
| | - Jennifer Hartmann
- ETHIANUM-Clinic for Plastic and Reconstructive Surgery; Aesthetic and Preventive Medicine at Heidelberg University Hospital; Heidelberg Germany
| | - Yannick Diehm
- BG Trauma Centre Ludwigshafen; Clinic for Hand, Plastic and Reconstructive Surgery, Burn Centre, Hand and Plastic Surgery of the University of Heidelberg; Heidelberg Germany
| | - Ulrike Lass
- Clinical Cooperation Unit Neuropathology; German Cancer Research Center; Heidelberg Germany
| | - Eva Koellensperger
- ETHIANUM-Clinic for Plastic and Reconstructive Surgery; Aesthetic and Preventive Medicine at Heidelberg University Hospital; Heidelberg Germany
| | - Uwe Leimer
- ETHIANUM-Clinic for Plastic and Reconstructive Surgery; Aesthetic and Preventive Medicine at Heidelberg University Hospital; Heidelberg Germany
| | - Günter Germann
- ETHIANUM-Clinic for Plastic and Reconstructive Surgery; Aesthetic and Preventive Medicine at Heidelberg University Hospital; Heidelberg Germany
| | - Sebastian Fischer
- BG Trauma Centre Ludwigshafen; Clinic for Hand, Plastic and Reconstructive Surgery, Burn Centre, Hand and Plastic Surgery of the University of Heidelberg; Heidelberg Germany
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24
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Sasaki GH. The Safety and Efficacy of Cell-Assisted Fat Grafting to Traditional Fat Grafting in the Anterior Mid-Face: An Indirect Assessment by 3D Imaging. Aesthetic Plast Surg 2015; 39:833-46. [PMID: 26335660 DOI: 10.1007/s00266-015-0533-5] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Accepted: 06/29/2015] [Indexed: 01/28/2023]
Abstract
BACKGROUND Numerous methodologies and algorithms have been suggested to enhance fat graft survival, including the usage of stromal vascular fraction (SVF) and platelet-rich plasma (PRP), but no long-term studies are available. OBJECTIVES This single-center prospective, case-controlled study investigated the safety and efficacy of combining a modified Baker-designed lateral SMASectomy or plication face lift with simultaneous anterior mid-face grafting into site-specific compartments by (1) conventional Coleman's technique or (2) Yoshimura's cell-assisted lipografting technique. METHODS On the voluntary principle, candidates selected one of four techniques for volumization of their mid-face: conventional fat grafting; PRP-assisted fat grafting; SVF-assisted fat grafting; and PRP/SVF- assisted fat grafting. For comparison data, comparable fat volumes, SVF volumes and nucleated cells, and PRP volumes and platelet concentrations were injected into each designated group. Indirect volume retentions were determined by standardized Vectra 3D analyses up to 1 year. RESULTS PRP, SVF, and PRP/SVF cell supplementation of processed fat resulted in statistically significant percent mean graft retention over their baseline control at 12 months (p < 0.01). The use of either PRP or SVF alone resulted in almost equal outcomes. Combining cell populations provided no additional advantage over single cellular therapy. Complications were negligible. CONCLUSIONS Autologous fat grafting continues to be a viable adjunct in facial aesthetic surgery. With refinements in the entire grafting process and the potential benefits of autologous cell approaches with SVF and PRP, future evidence-based controlled studies under regulatory approval may improve graft survival in a safe and effective manner. LEVEL OF EVIDENCE III This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.
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Affiliation(s)
- Gordon H Sasaki
- Private Practice Pasadena California, 800 S. Fairmount Ave. #319, Pasadena, CA, 91105, USA.
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Vogt PM, Reimers K. Cell-assisted autologous fat grafting. DEUTSCHES ARZTEBLATT INTERNATIONAL 2015; 112:253-4. [PMID: 25920356 DOI: 10.3238/arztebl.2015.0253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Peter M Vogt
- Department of Plastic, Hand and Reconstructive Surgery, Hannover Medical School
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Kapur SK, Dos-Anjos Vilaboa S, Llull R, Katz AJ. Adipose Tissue and Stem/Progenitor Cells. Clin Plast Surg 2015; 42:155-67. [DOI: 10.1016/j.cps.2014.12.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Abstract
BACKGROUND The regeneration of tissue lost due to trauma or disease is considered as being ideal for reconstruction with respect to repair in which a donor defect arises in a different part of the body. Through a better understanding of the cellular and molecular mechanisms of healing, possibilities for regenerative therapies have been developed in recent years. OBJECTIVES To give an exemplary representation of current regenerative therapy approaches and their effect and clinical application. MATERIAL AND METHODS The PubMed database was searched for different regenerative approaches in plastic surgery and various methods are presented in this article. RESULTS Cell-based approaches, in which autologous mesenchymal stem cells from adipose tissue are preferably used, led to excellent healing results with minimal donor site morbidity. Likewise, growth factor-based approaches or the use of platelet-rich plasma achieve very good results in the field of wound and bone healing. DISCUSSION By using different cells or molecules and thus taking advantage of biological mechanisms, the regenerative capabilities of adult organisms could be improved. Many methods have already been implemented in clinical practice, not only in reconstructive but also in aesthetic surgery. However, the success should not conceal the potential risk that is inherent in both cell and growth factor-based approaches. Until long-term experiences of such therapies have been acquired, they should be used cautiously.
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Affiliation(s)
- J W Kuhbier
- Klinik für Plastische, Hand- und Wiederherstellungschirurgie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland,
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