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Jia G, Wang J, Wang H, Hu X, Long F, Yuan C, Liang C, Wang F. New insights into red blood cells in tumor precision diagnosis and treatment. NANOSCALE 2024; 16:11863-11878. [PMID: 38841898 DOI: 10.1039/d4nr01454e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Red blood cells (RBCs), which function as material transporters in organisms, are rich in materials that are exchanged with metabolically active tumor cells. Recent studies have demonstrated that tumor cells can regulate biological changes in RBCs, including influencing differentiation, maturation, and morphology. RBCs play an important role in tumor development and immune regulation. Notably, the novel scientific finding that RBCs absorb fragments of tumor-carrying DNA overturns the conventional wisdom that RBCs do not contain nucleic acids. RBC membranes are excellent biomimetic materials with significant advantages in terms of their biocompatibility, non-immunogenicity, non-specific adsorption resistance, and biodegradability. Therefore, RBCs provide a new research perspective for the development of tumor liquid biopsies, molecular imaging, drug delivery, and other tumor precision diagnosis and treatment technologies.
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Affiliation(s)
- Gaihua Jia
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
| | - Jun Wang
- Department of Laboratory Medicine, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430016, China.
| | - Hu Wang
- Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
| | - Xin Hu
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
| | - Fei Long
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
| | - Chunhui Yuan
- Department of Laboratory Medicine, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430016, China.
- Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
| | - Chen Liang
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
| | - Fubing Wang
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
- Center for Single-Cell Omics and Tumor Liquid Biopsy, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
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Geng X, Ma J, Dhilipkannah P, Jiang F. MicroRNA Profiling of Red Blood Cells for Lung Cancer Diagnosis. Cancers (Basel) 2023; 15:5312. [PMID: 38001571 PMCID: PMC10670279 DOI: 10.3390/cancers15225312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/01/2023] [Accepted: 11/04/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Despite extensive endeavors to establish cell-free circulating biomarkers for lung cancer diagnosis, clinical adoption remains elusive. Noteworthy, emergent evidence suggests the pivotal roles of red blood cells (RBCs) and their derivatives in tumorigenesis, illuminating potential avenues for diagnostic advancements using blood cell-derived microRNAs (miRNAs). METHODS We executed microarray analyses on three principal blood cell types-RBCs, peripheral blood mononuclear cells (PBMCs), and neutrophils-encompassing 26 lung cancer patients and 26 healthy controls. Validation was performed using droplet digital PCR within an additional cohort comprising 42 lung cancer and 39 control cases. RESULTS Our investigation unearthed distinct miRNA profiles associated with lung cancer across all examined blood cell types. Intriguingly, RBC-miRNAs emerged as potential novel biomarkers for lung cancer, an observation yet to be documented. Importantly, integrating miRNAs from disparate blood cell types yielded a superior diagnostic accuracy for lung cancer over individual cell-type miRNAs. Subsequently, we formulated three diagnostic panels, adeptly discerning non-small cell lung cancer, adenocarcinoma, and squamous cell carcinoma, maintaining consistency across various disease stages. CONCLUSION RBC-derived molecules introduce novel cancer biomarkers, and exploiting miRNA profiles across varied blood cell types unveils a promising frontier for lung cancer's early detection and histological classification.
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Affiliation(s)
| | | | | | - Feng Jiang
- Departments of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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Aguilo-Seara G, Molair W, Shang H, Northrup S, Grosser JA, Llull R, Katz A. Extent of Tissue Washing Can Significantly Alter the Composition of Adipose-Derived Stromal Vascular Fraction Cell Preparations: Implications for Clinical Translation. Stem Cells Transl Med 2023; 12:391-399. [PMID: 37317551 DOI: 10.1093/stcltm/szad025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 04/07/2023] [Indexed: 06/16/2023] Open
Abstract
Stromal vascular fraction (SVF) cell preparations have recently attracted much interest as a form of autologous cell therapy. These heterogenous cell populations typically include some proportion of blood-derived cells (BDCs)-including both red blood cells (RBCs) and leukocytes (WBCs). The objectives of this paper were to evaluate the effects of tissue washing and hypotonic RBC lysis-separately and together-on BDC concentrations within SVF, and further to explore whether BDCs can confer detectable and modifiable effects on adipose-derived cell activity. Using various cell culture assays, flow cytometry and ELISA analysis of human-derived SVF preparations, we show that thorough washing of adipose tissue prior to enzymatic dissociation effectively removes RBCs from SVF preparations as well as standard lysis methods and significantly alters the type and relative quantities of WBCs. In addition, these studies demonstrate that potentially toxic RBC components are detectable for up to 1 week in cultures containing RBC lysate, but not those with intact RBCs, and, that culture-expanded cells proliferate significantly more in the presence of intact RBCs versus RBC lysis products or control media. Broadly, these data exemplify how different seemingly mundane tissue processing steps can significantly influence SVF identity/composition, purity, and potency. Based on the findings of this work, we propose that translational efforts in the field would benefit by a better understanding of the impact of RBCs, WBCs, and non-viable cells on the in vivo therapeutic activity of SVF therapies.
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Affiliation(s)
- Gabriela Aguilo-Seara
- Department of Plastic Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - William Molair
- Department of Plastic Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Hulan Shang
- Department of Plastic Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Scott Northrup
- Department of Plastic Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Joshua A Grosser
- Department of Plastic Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Ramon Llull
- Department of Plastic Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Adam Katz
- Department of Plastic Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
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Liang N, Jiao Z, Zhang C, Wu Y, Wang T, Li S, Wang Y, Song T, Chen J, Liang H, Chen Q. Mature Red Blood Cells Contain Long DNA Fragments and Could Acquire DNA from Lung Cancer Tissue. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206361. [PMID: 36599687 PMCID: PMC9982546 DOI: 10.1002/advs.202206361] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Indexed: 06/17/2023]
Abstract
Red blood cells (RBC) are commonly known as cells with no nucleus or mitochondria and are assumed to be a transportation vehicle. This study confirms that RBC contain long DNA fragments inside with stain by both microscope and flow cytometry, which covers most nuclear and mitochondrial genome regions by next-generation sequencing (NGS). Such characteristics demonstrate a significant difference compared with A549 cell line or paired peripheral blood mononuclear cell as nucleated cells. To further explore the characteristics of RNA DNA, DNA from 20 RBC samples is sequenced by NGS. Interestingly, several gaps and multiple regions with copy number variation are observed significantly different between different samples, which could be used to distinguish samples with different health status accurately. Using an in vitro co-culture system, it is shown that RBC could absorb DNA-bearing tumorigenic mutations from cancer cell lines but requires cell-to-cell contact. Finally, based on a small scale clinical trial, it is confirmed that common genetic mutations of cancer tissues could be detected in RBC from patients with early-stage non-small-cell lung cancer. This study highlights a new biological phenomenon involving RBC and its translational potential as a novel liquid biopsy technology platform for early cancer screening and diagnosis of malignancy.
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Affiliation(s)
- Naixin Liang
- Department of Thoracic SurgeryPeking Union Medical College HospitalChinese Academy of Medical SciencesBeijing100730China
| | - Zichen Jiao
- Department of Thoracic SurgeryNanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjingJiangsu210093China
| | - Cong Zhang
- The State Key Laboratory of Pharmaceutical BiotechnologySchool of Life SciencesNanjing UniversityNanjingJiangsu210023China
| | - Yifan Wu
- The State Key Laboratory of Pharmaceutical BiotechnologySchool of Life SciencesNanjing UniversityNanjingJiangsu210023China
| | - Tao Wang
- Department of Thoracic SurgeryNanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjingJiangsu210093China
| | - Shanqing Li
- Department of Thoracic SurgeryPeking Union Medical College HospitalChinese Academy of Medical SciencesBeijing100730China
| | - Yadong Wang
- Department of Thoracic SurgeryPeking Union Medical College HospitalChinese Academy of Medical SciencesBeijing100730China
| | - Tianqiang Song
- The State Key Laboratory of Pharmaceutical BiotechnologySchool of Life SciencesNanjing UniversityNanjingJiangsu210023China
| | - Jian‐Qun Chen
- The State Key Laboratory of Pharmaceutical BiotechnologySchool of Life SciencesNanjing UniversityNanjingJiangsu210023China
| | - Hongwei Liang
- School of Life Sciences and TechnologyChina Pharmaceutical UniversityNanjingJiangsu210009China
| | - Qihan Chen
- Department of Thoracic SurgeryNanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjingJiangsu210093China
- Medical School of Nanjing UniversityNanjingJiangsu210093China
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Zhang H, Wan GZ, Wang YY, Chen W, Guan JZ. The role of erythrocytes and erythroid progenitor cells in tumors. Open Life Sci 2022; 17:1641-1656. [PMID: 36567722 PMCID: PMC9755711 DOI: 10.1515/biol-2022-0102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/09/2022] [Accepted: 05/30/2022] [Indexed: 12/23/2022] Open
Abstract
In the current research context of precision treatment of malignant tumors, the advantages of immunotherapy are unmatched by conventional antitumor therapy, which can prolong progression-free survival and overall survival. The search for new targets and novel combination therapies can improve the efficacy of immunotherapy and reduce adverse effects. Since current research targets for immunotherapy mainly focus on lymphocytes, little research has been done on erythrocytes. Nucleated erythroid precursor stem cells have been discovered to play an essential role in tumor progression. Researchers are exploring new targets and therapeutic approaches for immunotherapy from the perspective of erythroid progenitor cells (EPCs). Recent studies have shown that different subtypes of EPCs have specific surface markers and distinct biological roles in tumor immunity. CD45+ EPCs are potent myeloid-derived suppressor cell-like immunosuppressants that reduce the patient's antitumor immune response. CD45- EPCs promote tumor invasion and metastasis by secreting artemin. A specific type of EPC also promotes angiogenesis and provides radiation protection. Therefore, EPCs may be involved in tumor growth, infiltration, and metastasis. It may also be an important cause of anti-angiogenesis and immunotherapy resistance. This review summarizes recent research advances in erythropoiesis, EPC features, and their impacts and processes on tumors.
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Affiliation(s)
- Hao Zhang
- Department of Oncology, The Fifth Medical Center, Chinese PLA (People’s Liberation Army) General Hospital, Beijing 100091, China,Department of Oncology, The Eighth Medical Center, Chinese PLA (People’s Liberation Army) General Hospital, Beijing 100071, China,Postgraduate Department of Hebei North University, Zhangjiakou 075000, China
| | - Guang-zhi Wan
- Department of Oncology, The Eighth Medical Center, Chinese PLA (People’s Liberation Army) General Hospital, Beijing 100071, China
| | - Yu-ying Wang
- Department of Oncology, First Medical Center, Chinese PLA (People’s Liberation Army) General Hospital, Beijing, China
| | - Wen Chen
- Department of Pathology, The Eighth Medical Center, Chinese PLA (People’s Liberation Army) General Hospital, Beijing 100091, China
| | - Jing-Zhi Guan
- Department of Oncology, The Eighth Medical Center, Chinese PLA (People’s Liberation Army) General Hospital, Beijing 100071, China
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Molecular Mechanism Exploration of Autologous Blood Transfusion with RBC Surface Membrane Protein pMHC/aCD28 Combined with CD8+T Cells to Promote the Proliferation of CD8+T Cells to Inhibit the Malignant Transformation of Liver Cancer. JOURNAL OF ONCOLOGY 2022; 2022:6102672. [PMID: 36213824 PMCID: PMC9534649 DOI: 10.1155/2022/6102672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/17/2022] [Indexed: 11/18/2022]
Abstract
Autologous blood transfusion is an important blood protection measure. Red blood cells have a certain degree of immunogenicity and their surface membrane proteins CD28 and MHC can participate in the immune response and interact with CD8+ T cells. We build a cell model with a transwell system. The binding characteristics of RBCs and CD8+ T cells were observed with a fluorescent confocal microscope. The content of the inflammatory factor TNF-α and IFN-γ produced was analyzed by ELISA. The proliferation characteristics of CD8+ T cells were analyzed by CFSE staining, and the content of CD3+CD8+ T cells was analyzed by flow cytometry. Cell migration and invasion experiments were used to analyze the malignant metastasis ability of liver cancer cells. The expression of vimentin, E-cadherin, and β-catenin was analyzed by Western blot. We establish a liver cancer model in rats and group them for autologous blood transfusion. The content of CD3+CD8+T cells in the blood of each group of rats was analyzed by flow cytometry. Western blot was used to analyze the expression of vimentin, E-cadherin, and β-catenin in the liver tissues of rats in each group. The red blood cells in the autologous reinfusion blood and CD8+ T cells have an obvious combination. The degree of combination of the two is related to the expression of CD28 and MHC. If CD28 and MHC are expressed at the same time, the combination of the two cells will be high, the proliferation of CD8+ T cells will increase, and the expression of inflammatory factors will also increase, while the expression of the three proteins that are positively correlated with the activity of cancer cells will decrease. If only one of CD28 and MHC is normally expressed, the result is contrary to the situation where both membrane proteins are normally expressed. Our project has proved that autologous infusion of red blood cell surface membrane proteins CD28 and MHC combined with CD8+ T cells can promote the proliferation of CD8+ T cells to inhibit the malignant transformation of liver cancer.
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Shi X, Yang J, Deng S, Xu H, Wu D, Zeng Q, Wang S, Hu T, Wu F, Zhou H. TGF-β signaling in the tumor metabolic microenvironment and targeted therapies. J Hematol Oncol 2022; 15:135. [PMID: 36115986 PMCID: PMC9482317 DOI: 10.1186/s13045-022-01349-6] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 08/24/2022] [Indexed: 12/30/2022] Open
Abstract
AbstractTransforming growth factor-β (TGF-β) signaling has a paradoxical role in cancer progression, and it acts as a tumor suppressor in the early stages but a tumor promoter in the late stages of cancer. Once cancer cells are generated, TGF-β signaling is responsible for the orchestration of the immunosuppressive tumor microenvironment (TME) and supports cancer growth, invasion, metastasis, recurrence, and therapy resistance. These progressive behaviors are driven by an “engine” of the metabolic reprogramming in cancer. Recent studies have revealed that TGF-β signaling regulates cancer metabolic reprogramming and is a metabolic driver in the tumor metabolic microenvironment (TMME). Intriguingly, TGF-β ligands act as an “endocrine” cytokine and influence host metabolism. Therefore, having insight into the role of TGF-β signaling in the TMME is instrumental for acknowledging its wide range of effects and designing new cancer treatment strategies. Herein, we try to illustrate the concise definition of TMME based on the published literature. Then, we review the metabolic reprogramming in the TMME and elaborate on the contribution of TGF-β to metabolic rewiring at the cellular (intracellular), tissular (intercellular), and organismal (cancer-host) levels. Furthermore, we propose three potential applications of targeting TGF-β-dependent mechanism reprogramming, paving the way for TGF-β-related antitumor therapy from the perspective of metabolism.
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Lin W, Lu X, Yang H, Huang L, Huang W, Tang Y, Liu S, Wang H, Zhang Y. Metabolic heterogeneity protects metastatic mucosal melanomas cells from ferroptosis. Int J Mol Med 2022; 50:124. [PMID: 36004461 PMCID: PMC9448297 DOI: 10.3892/ijmm.2022.5180] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/18/2022] [Indexed: 11/08/2022] Open
Abstract
Cancer heterogeneity has been proposed to be one of the main causes of metastatic dissemination and therapy failure. However, the underlying mechanisms of this phenomenon remain poorly understood. Melanoma is an aggressive malignancy with a high heterogeneity and metastatic potential. Therefore, the present study investigated the possible association between cancer heterogeneity and metastasis in melanoma. In total, two novel Chinese oral mucosal melanoma (COMM) cell lines, namely COMM-1 and COMM-2, were established for exploring methods into preventing the loss of cellular heterogeneity caused by long-term cell culture. Each cell line was grown under two different models of culture, which yielded two subtypes, one exhibited an adhesive morphology (COMM-AD), whereas the other was grown in suspension (COMM-SUS). Compared with the COMM-AD cells, the COMM-SUS cells exhibited higher metastatic capacities and autofluorescence. Further investigations indicated that the COMM-SUS cells exhibited metabolic reprogramming by taking up lactate produced by COMM-AD cells at increased levels to accumulate NADH through monocarboxylate transporter 1, whilst also increasing NADPH levels through the pentose phosphate pathway (PPP). Additionally, increased NADH and NADPH levels in the COMM-SUS cells, coupled with the upregulation of the anti-ferroptotic proteins, glutathione peroxidase 4 and ferroptosis suppressor protein 1, enabled them to resist ferroptotic cell death induced by oxidative stress during hematogenous dissemination. The inhibition of ferroptosis was found to substantially increase the metastatic capacity of COMM-AD cells. Furthermore, suppressing lactate uptake and impairing PPP activation significantly decreased the metastatic potential of the COMM-SUS cells. Thus, the present study on metabolic heterogeneity in COMM cells potentially provides a novel perspective for exploring this mechanism underlying cancer metastasis.
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Affiliation(s)
- Weifan Lin
- MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat‑sen University, Guangzhou, Guangdong 510006, P.R. China
| | - Xiangwan Lu
- MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat‑sen University, Guangzhou, Guangdong 510006, P.R. China
| | - Hang Yang
- MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat‑sen University, Guangzhou, Guangdong 510006, P.R. China
| | - Linxuan Huang
- MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat‑sen University, Guangzhou, Guangdong 510006, P.R. China
| | - Wuheng Huang
- MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat‑sen University, Guangzhou, Guangdong 510006, P.R. China
| | - Yuluan Tang
- MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat‑sen University, Guangzhou, Guangdong 510006, P.R. China
| | - Situn Liu
- MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat‑sen University, Guangzhou, Guangdong 510006, P.R. China
| | - Hua Wang
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guanghua Hospital of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Yan Zhang
- MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat‑sen University, Guangzhou, Guangdong 510006, P.R. China
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Warren JR, Khalil LS, Pietroski AD, Muh SJ. Injection of adipose stem cells in the treatment of rotator cuff disease - a narrative review of current evidence. Regen Med 2022; 17:477-489. [PMID: 35586993 DOI: 10.2217/rme-2021-0166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The purpose of this study is to summarize evidence for the use of adipose stem cell (ASC) injections in the treatment of rotator cuff tears (RCT) and identify future areas of study. A thorough literature search was performed to identify studies investigating the use of ASC injections in the treatment of RCTs. Among animal trials, it is unclear whether ASCs are of benefit for rotator cuff repair. In clinical trials, ASC injection may reduce retear rate with otherwise equivocal clinical outcomes. Although ASC injection may be safe, the literature does not provide a clear consensus as to the efficacy of ASC injections, nor does it delineate which patients would benefit most from this treatment.
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Affiliation(s)
- Jonathan R Warren
- Department of Orthopedic Surgery, Henry Ford Hospital, Detroit, MI 48202, USA
| | - Lafi S Khalil
- Department of Orthopedic Surgery, Henry Ford Hospital, Detroit, MI 48202, USA
| | | | - Stephanie J Muh
- Department of Orthopedic Surgery, Henry Ford Hospital, Detroit, MI 48202, USA
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Biomimetic approaches for targeting tumor inflammation. Semin Cancer Biol 2022; 86:555-567. [DOI: 10.1016/j.semcancer.2022.04.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 03/31/2022] [Accepted: 04/20/2022] [Indexed: 02/08/2023]
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Platelet-Rich Fibrin Decreases the Inflammatory Response of Mesenchymal Cells. Int J Mol Sci 2021; 22:ijms222111333. [PMID: 34768764 PMCID: PMC8583104 DOI: 10.3390/ijms222111333] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 12/11/2022] Open
Abstract
Chronic inflammation is a pathological process where cells of the mesenchymal lineage become a major source of inflammatory mediators. Platelet-rich fibrin (PRF) has been shown to possess potent anti-inflammatory activity in macrophages, but its impact on mesenchymal cells has not been investigated. The aim of this study was, therefore, to expose mesenchymal cells to inflammatory cytokines together with lysates generated from liquid platelet-poor plasma (PPP), the cell-rich buffy coat layer (BC; concentrated-PRF or C-PRF), and the remaining red clot layer (RC), following centrifugation of blood. Heating PPP generates an albumin gel (Alb-gel) that when mixed back with C-PRF produces Alb-PRF. Membranes prepared from solid PRF were also subjected to lysis. We report here that lysates of PPP, BC, and PRF decreased the cytokine-induced expression of interleukin 6 (IL6) and nitric oxide synthase (iNOS) in the bone marrow-derived ST2 cells. Consistently, PPP, BC, and PRF greatly decreased the phosphorylation and nuclear translocation of p65 in ST2 cells. The inflammatory response caused by Pam3CSK4 was reduced accordingly. Moreover, PPP, BC, and PRF reduced the enhanced expression of inflammatory mediators IL6 and iNOS in 3T3-L1 pre-adipocyte mesenchymal cells, and iNOS and CCL5 in murine calvarial cells. Surprisingly, PRF lysates were not effective in reducing the inflammatory response of human gingival fibroblasts and HSC2 epithelial cells. The data from the present study suggest that both liquid PRF and solid PRF exert potent anti-inflammatory activity in murine mesenchymal cells.
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