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Role of Platelet-Rich Plasma Gel in Promoting Wound Healing Based on Medical Images of Wounds. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:1543604. [PMID: 36176925 PMCID: PMC9499777 DOI: 10.1155/2022/1543604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/23/2022] [Accepted: 09/03/2022] [Indexed: 11/17/2022]
Abstract
A wound is the pathological change of soft tissue under normal skin caused by various factors, such as collision, contusion, hot crush, avulsion, corrosive chemicals, operations, excessive wound tension after operations, local pressure that cannot be relieved for a long time, liquid immersion, local infection, and rejection reactions caused by allogeneic substances. The skin itself or its underlying soft tissue loses its integrity and continuity, thus losing its normal physiological function. Medical image analysis is a medical term that refers to the interdisciplinary fields of integrated medical imaging, artificial intelligence, digital image processing and analysis, mathematical modeling, and numerical algorithms. According to the time of wound formation, they can be divided into acute and chronic wounds. The common acute wounds include lacerations caused by trauma, surgical incisions, burns, and donor sites formed after skin graft operations. This article mainly studies the role of platelet-rich plasma gel nanocomposites in promoting wound healing. It is proven that ptt-rich plasma gel can significantly promote tissue repair and regeneration and accelerate wound healing in patients with severe burns. The atomic number of the nanocomposite has a better treatment effect on the nanoparticle approach. In this paper, chitosan nanocomposite membrane, nanocomposite algorithm, and the calculation method of enthalpy of formation of high alloy nanomaterials were used to study the role of ptt-rich plasma gel combined chitosan nanocomposite membrane loaded bone marrow stromal cells in promoting wound healing, and its effects were applied to the repair of special site burns, special burns, and different age burns. Good wound repair benefits from the correct treatment of the wound, which directly affects the stability and development of the internal environment. The difference in healing time between the two groups was statistically significant, and the recovery time of the PRP group was 0.001 less than that of the control group. The results showed that the wound healing time of the PRP group was significantly shorter than that of the control group (P < 0.05); after treatment, the content of VEGF in the wound tissue of the two groups increased, especially in the PRP group; the effective rate of the PRP group was 75.0%, which was higher than 68.8% of the control group. It can play an important role in the regulation of expression and the pathophysiological process of wound healing.
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Wen X, Xie H, Gui R, Nie X, Shan D, Huang R, Deng H, Zhang J. CircRNA-011235 Counteracts The Deleterious Effect of Irradiation Treatment on Bone Mesenchymal Stem Cells by Regulating The miR-741-3p/CDK6 Pathway. CELL JOURNAL 2022; 24:15-21. [PMID: 35182060 PMCID: PMC8876257 DOI: 10.22074/cellj.2022.7697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 10/24/2020] [Indexed: 11/24/2022]
Abstract
OBJECTIVE The present work was aimed at uncovering the effect of circRNA-011235 (circ-011235) on irradiation-induced bone mesenchymal stem cells (BMSCs) injury and its regulatory mechanism, with a view to establish a scientific basis for its possible medical applications. MATERIALS AND METHODS In this experimental study, after irradiation with different doses (0, 2, 4, 6 GY), the relative expression levels of circ-011235, miR-741-3p, and cyclin-dependent kinases 6 (CDK6) were detected in the BMSCs, using the real time-quantitative polymerase chain reaction (RT-qPCR). The overexpression effects of circ-011235 and CDK6 on the cell proliferation in irradiation-treated BMSCs were measured by the Cell Counting Kit-8 (CCK8) assay. And also, their effects on the cell cycle were evaluated by flow cytometry. RT-qPCR and immunoblotting were performed to detect the effects of pcDNA-circ-011235 and pcDNA-CDK6 on the expression of cyclin D1 and cyclindependent kinases 4 (CDK6) at the gene and protein levels, respectively. RESULTS Irradiation treatment elevated the expression of circ-011235 and CDK6, but reduced miR-741-3p expression in the BMSCs with a dose-dependent effect. The proliferation of BMSCs was significantly inhibited in the irradiation treatment group, while the overexpression of circ-011235 and CDK6 effectively attenuated this inhibition. Also, overexpression of circ-011235 and CDK6 elevated the expression of cyclin D1 in irradiation-treated BMSCs, but had no significant effect on the CDK4 expression. CONCLUSION Our results demonstrated that circ-011235 up-regulated the expression of cyclin D1 via miR-741-3p/ CDK6 signal pathway, thereby promoting cell cycle progression and proliferation of irradiation-treated BMSCs. This finding suggested circ-011235/ miR-741-3p/CDK6 pathway exerted a protective role in the response to irradiation and will be a potential new target for future research on the mechanism involved in the resistance of BMSCs to radiation.
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Affiliation(s)
- Xianhui Wen
- Department of Blood Transfusion, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Hebin Xie
- Research and Teaching Department, Changsha Central Hospital, Changsha, Hunan, China
| | - Rong Gui
- Department of Blood Transfusion, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Xinmin Nie
- The Third Xiangya Hospital of Central South University, Changsha, China
| | - Dongyong Shan
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Rong Huang
- Department of Blood Transfusion, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Hongyu Deng
- Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Junhua Zhang
- Department of Blood Transfusion, The Third Xiangya Hospital of Central South University, Changsha, China,Department of Blood TransfusionThe Third Xiangya Hospital of Central South UniversityChangshaChina
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3
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Ferdowsi S, Ghaffari SH, Shiraji ST, Mousavi SA, Mohammadi S. Investigation of the Osteopontin isoforms expression in patients with acute myeloid leukemia. Med Oncol 2021; 38:102. [PMID: 34313836 DOI: 10.1007/s12032-021-01539-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 06/21/2021] [Indexed: 12/01/2022]
Abstract
Acute myeloid leukemia (AML) is one of the major hematological malignancies. Advances in molecular research have greatly improved our understanding of the process of leukemia formation in AML. Osteopontin (OPN) is a novel molecule that mediates critical processes for cancer progression. The aim of this study was to investigate the relative expression of OPN gene isoforms in AML patients on days 0, 14, and 28 after chemotherapy. The bone marrow samples were collected from 40 newly diagnosed AML patients (24 male and 16 female with a mean age of 30 years) at the initial time of diagnosis, 14 and 28 days after treatment. The peripheral blood samples of 10 healthy individuals were also collected as the control group. The expression of OPN isoforms was investigated by Real-Time Quantitative PCR. The expression of VEGFc/STAT3/CXCR4 was also investigated by Real-Time PCR. Findings indicated that OPNb and OPNc isoforms had significantly overexpression in AML patients on 14 and 28 days after treatment compared to normal samples (P < 0.05). The level of OPNb and OPNc isoforms was increased significantly in M0, M1, and M2 subgroups with overexpression of VEGFc/STAT3/CXCR4, 28 days after starting chemotherapy (P < 0.05). Our results suggested that OPNb and OPNc isoforms play a major role in cancer relapse. Therefore, they can be used as a valuable prognostic and diagnostic biomarker for relapse of the AML disease. However, these findings need confirmation with further studies.
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Affiliation(s)
- Shirin Ferdowsi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Seyed H Ghaffari
- Hematology-Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran
| | - Sahar Tavakkoli Shiraji
- Hematology-Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Asadollah Mousavi
- Hematology-Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Mohammadi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran. .,Hematology-Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran. .,Research Institute for Oncology, Hematology and Cell Therapy, Tehran University of Medical Sciences, Tehran, Iran.
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Hou D, Wang B, You R, Wang X, Liu J, Zhan W, Chen P, Qin T, Zhang X, Huang H. Stromal cells promote chemoresistance of acute myeloid leukemia cells via activation of the IL-6/STAT3/OXPHOS axis. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1346. [PMID: 33313091 PMCID: PMC7723653 DOI: 10.21037/atm-20-3191] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background Bone marrow stromal cells (BMSCs) are known to promote chemoresistance in acute myeloid leukemia (AML) cells. However, the molecular basis for BMSC-associated AML chemoresistance remains largely unexplored. Methods The mitochondrial oxidative phosphorylation (OXPHOS) levels of AML cells were measured by a Seahorse XFe24 cell metabolic analyzer. The activity of total or mitochondrial signal transducer and transcription activator 3 (STAT3) in AML cells was explored by flow cytometry and Western blotting. Real-time quantitative PCR, Western blotting and enzyme-linked immunosorbent assay (ELISA) were used to analyze expression of interleukin 6 (IL-6) in the human BMSC line HS-5, and IL-6 was knocked out in HS-5 cells by CRISPR/Cas9 system. Results In this study, we observed that co-culturing with BMSCs heightened OXPHOS levels in AML cells, thus promoting chemoresistance in these cells. HS-5 cell-induced upregulation of OXPHOS is dependent on the activation of STAT3, especially on that of mitochondrial serine phosphorylated STAT3 (pS-STAT3) in AML cells. The relationship among pS-STAT3, OXPHOS, and chemosensitivity of AML cells induced by BMSCs was demonstrated by the STAT3 activator and inhibitor, which upregulated and downregulated the levels of mitochondrial pS-STAT3 and OXPHOS, respectively. Intriguingly, AML cells remodeled HS-5 cells to secrete more IL-6, which augmented mitochondrial OXPHOS in AML cells and stimulated their chemoresistance. IL-6 knockout in HS-5 cells impaired the ability of these cells to activate STAT3, to increase OXPHOS, or to promote chemoresistance in AML cells. Conclusions BMSCs promoted chemoresistance in AML cells via the activation of the IL-6/STAT3/OXPHOS pathway. These findings exhibit a novel mechanism of chemoresistance in AML cells in the bone marrow microenvironment from a metabolic perspective.
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Affiliation(s)
- Diyu Hou
- Central Laboratory, Fujian Medical University Union Hospital, Fuzhou, China
| | - Bin Wang
- Central Laboratory, Fujian Medical University Union Hospital, Fuzhou, China.,Clinical Laboratory, Fujian Children's Hospital, Fuzhou, China
| | - Ruolan You
- Central Laboratory, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xiaoting Wang
- Central Laboratory, Fujian Medical University Union Hospital, Fuzhou, China
| | - Jingru Liu
- Central Laboratory, Fujian Medical University Union Hospital, Fuzhou, China
| | - Weiwu Zhan
- Central Laboratory, Fujian Medical University Union Hospital, Fuzhou, China
| | - Ping Chen
- Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Tiandi Qin
- Central Laboratory, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xuehao Zhang
- School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, China
| | - Huifang Huang
- Central Laboratory, Fujian Medical University Union Hospital, Fuzhou, China
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Li H, Li J, Cheng J, Chen X, Zhou L, Li Z. AML‑derived mesenchymal stem cells upregulate CTGF expression through the BMP pathway and induce K562‑ADM fusiform transformation and chemoresistance. Oncol Rep 2019; 42:1035-1046. [PMID: 31322275 PMCID: PMC6667869 DOI: 10.3892/or.2019.7237] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 07/12/2019] [Indexed: 12/27/2022] Open
Abstract
Bone marrow‑derived mesenchymal stem cells (MSCs), are the basic cellular components that make up the bone marrow microenvironment (BMM). In acute myeloid leukemia (AML), the morphology and function of MSCs changes in accordance with the transformation of the BMM. Moreover, the transformation of MSCs into osteoblasts is determined through the bone morphogenetic protein (BMP) pathway, ultimately leading to an altered expression of the downstream adhesion molecule, connective tissue growth factor (CTGF). In this study, we aimed to explore the interaction of possible pathways in AML‑derived mesenchymal stem cells (AML‑MSCs) co‑cultured with the K562 and K562‑ADM cell lines. AML‑MSCs were co‑cultured with K562/K562‑ADM cells, and the interactions between the cells were verified by morphological detection, peroxidase staining (POX), reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) and fluorescence in situ hybridization (FISH). The proliferation of K562/K562‑ADM cells under co‑culture conditions was detected by flow cytometry. The expression levels of BMP4 and CTGF were examined by RT‑qPCR and western blot (WB) analysis. The detection of interleukin (IL)‑6 and IL‑32 was also determined by enzyme linked immunosorbent assay (ELISA). In the co‑culture system, the K562‑ADM cells underwent fusiform transformation. The occurrence of this transformation was associated with an increased expression of CTGF due to the dysregulation of the BMP pathway. The AML‑MSCs promoted the proliferation of the K562‑ADM cell, but inhibited that of the K562 cells. These findings were confirmed by changes in the expression of the soluble cytokines, IL‑6 and IL‑32. On the whole, the findings of this study demonstrate that AML‑MSCs regulate the expression of CTGF through the BMP pathway. In addition, they affect cytokine production, induce spindle‑shaped transformation, and increase drug resistance in the K562‑ADM cells. Thus, the morphological transformation through the BMP pathway provides us with a novel target with which to circumvent tumor occurrence, development, drug resistance, invasion and metastasis.
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Affiliation(s)
- Haiying Li
- Department of Central Laboratory, The First Medical College of Lanzhou University, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Juan Li
- Department of Central Laboratory, The First Hospital of Lanzhou University, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Juan Cheng
- Department of Hematology, The First Hospital of Lanzhou University, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Xuan Chen
- Department of Central Laboratory, The First Hospital of Lanzhou University, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Lanxia Zhou
- Department of Central Laboratory, The First Hospital of Lanzhou University, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Zhao Li
- Department of Central Laboratory, The First Hospital of Lanzhou University, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
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Mosadegh Manshadi S, Safavi M, Rostami S, Nadali F, Shams Ardekani MR. Apoptosis Induction of Armeniacae Semen Extractin Human Acute Leukemia (NALM-6 and KG-1) Cells. Int J Hematol Oncol Stem Cell Res 2019; 13:116-121. [PMID: 31649801 PMCID: PMC6801328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background: Prunusarmeniaca is a member of the Rosacea family. The most important ingredient of this family is amygdalin that is believed to have anti-tumor and analgesic properties. The aim of this study was to evaluate the anti-proliferative effects of Armeniacae semen extract on the acute leukemia, NALM-6, and KG-1 cell lines, and investigate the effect of the extract on apoptosis of these cell lines and caspase-3 gene expression. Materials and Methods: We prepared aqueous, ethyl acetate, and hydro alcoholic extracts of the Armeniacae semen. The NALM-6 and KG-1 cell lines and mononuclear cells (PBMCs) of healthy controls were treated with different doses of the extracts for 48 hours, and then cell viability was investigated with the MTT test. High-Performance Liquid Chromatography was done for amygdalin identification. The percentage of apoptotic cells was determined using the Annexin V-FITC/PI flow cytometric kit, and caspase-3 gene expression was evaluated. Results: MTT test revealed that the strongest Inhibition Concentration (IC50) in KG-1 and NALM-6 cell lines was related to the ethyl acetate extract. This extract did not have toxic effects on PBMCs. Flow cytometric analysis showed that the ethyl acetate extract at its IC50 concentration led to almost 50% apoptosis in both cell lines after 48 hours. In the molecular examination, after treatment, a significant increase was seen in caspase-3 gene expression in NALM6 and KG1 cells compared to the control (P<0.001 and P <0.05, respectively). Conclusion: Our data confirmed that the ethyl acetate extract of Prunusarmeniaca could reduce the proliferation of KG-1 and NALM-6 cell lines probably by activating the apoptotic pathway.
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Affiliation(s)
- Shiva Mosadegh Manshadi
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Maliheh Safavi
- Department of Biotechnology, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
| | - Shahrbano Rostami
- Hematology-Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Nadali
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Shams Ardekani
- Department of Pharmacognosy and Medicinal Plants Research Center, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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7
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Mohammadi Kian M, Mohammadi S, Tavallaei M, Chahardouli B, Rostami S, Zahedpanah M, Ghavamzadeh A, Nikbakht M. Inhibitory Effects of Arsenic Trioxide and Thalidomide on Angiogenesis and Vascular Endothelial Growth Factor Expression in Leukemia Cells. Asian Pac J Cancer Prev 2018; 19:1127-1134. [PMID: 29699374 PMCID: PMC6031772 DOI: 10.22034/apjcp.2018.19.4.1127] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Acute myeloid leukemia (AML) is a blood disorder characterized by uncontrolled proliferation of myeloid progenitors and decrease in the apoptosis rate. The vascular endothelial growth factor (VEGF) promotes blood vessel regeneration which might play important roles in development and progression of neoplasia. Our previous studies focused on cytotoxicity and anticancer effects of arsenic trioxide (ATO) and thalidomide (THAL) as an anti-VEGF compound in the AML cell model. ATO also affects regulatory genes involved in cell proliferation and apoptosis. The aim of present study was to examine the effects of ATO and THAL alone and in combination on U937 and KG-1 cells, with attention to mRNA expression for VEGF isoforms. Growth inhibitory effects was assessed by MTT assay and apoptosis induction was determined by Annexin/PI staining. mRNA expression levels were evaluated by real-time PCR. Our data indicated that ATO (1.618μM and 1μM in KG-1 and U937 cell lines respectively), THAL (80μM and 60μM) and their combination inhibited proliferation and induced apoptosis in our cell lines. mRNA expression of VEGF (A, B) decreased while C and D isoforms did not show any significant changes. Taken together, according to the obtained results, the VEGF autocrine loop could be a target as a therapeutic strategy for cases of AML.
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Affiliation(s)
- Mahnaz Mohammadi Kian
- Hematology Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran.,
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8
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Mirzaei A, Mohammadi S, Ghaffari SH, Yaghmaie M, Vaezi M, Alimoghaddam K, Ghavamzadeh A. Osteopontin b and c Splice isoforms in Leukemias and Solid
Tumors: Angiogenesis Alongside Chemoresistance. Asian Pac J Cancer Prev 2018; 19:615-623. [PMID: 29580029 PMCID: PMC5980831 DOI: 10.22034/apjcp.2018.19.3.615] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Osteopontin (OPN) is a glycoprotein involved in regulation of various influences on tumor progression, such as cellular proliferation, apoptosis, angiogenesis, and metastasis. Vascular endothelial growth factor (VEGF) is a secreted molecule supporting angiogenesis in various cancers through activation of the PI3K/AKT/ERK1/2 pathway. OPN and VEGF have a number of isoforms with various activities. In spite of the well-defined association between OPN and VEGF isoform expression and cure rate for solid tumors, there is a scarcity of information as to any association in leukemia. Based on the critical role of OPN in cell survival, it seems reasonable to hypothesize that OPN and VEGF isoform expression levels may impact on chemoresistance and relapse in leukemia the same as in solid tumors. Hence, the aim of our review was to explain relationships between OPN and VEGF isoforms and angiogenesis and related pathways in chemoresistance of leukemia and solid tumors. Our findings demonstrated that OPNb and OPNc alongside with VEGF isoforms and other gene pathways are involved in angiogenesis and also might promote chemoresistance and even recurrence in leukemia and solid tumors. To sum up, targeting OPN isoforms, particularly b and c, might be a novel therapeutic strategy for the treatment of leukemia as well as solid tumors.
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Affiliation(s)
- Akram Mirzaei
- Hematology, Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Iran. ,
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9
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Salemi M, Mohammadi S, Ghavamzadeh A, Nikbakht M. Anti-Vascular Endothelial Growth Factor Targeting by Curcumin and Thalidomide in Acute Myeloid Leukemia Cells. Asian Pac J Cancer Prev 2017; 18:3055-3061. [PMID: 29172279 PMCID: PMC5773791 DOI: 10.22034/apjcp.2017.18.11.3055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Acute myeloid leukemias (AMLs) are blood disorders that exhibit uncontrolled growth and reduction of apoptosis rates. As with other malignancies, progression may be result of induction and formation of new blood vessels influenced by disease conditions. Cancer cells produce a variety of factors which play important roles in angiogenesis. Vascular endothelial growth factor (VEGF) is critical for many malignancies, including AMLs. Curcumin, as a natural compound, is able to enhance apoptosis via a mechanism affecting regulatory genes. As a new strategy we here evaluated anti-VEGF properties of curcumin, alone and in combination with thalidomide, in leukemic cell lines. Growth inhibitory effects were assessed by MTT assay and apoptosis was detected by annexin/PI staining in U937 and KG-1 cell lines. mRNA expression levels of VEGF isoforms were evaluated by qRT-PCR. Curcumin inhibited proliferation and induced apoptosis in both KG-1 and U937 cells and this effect was stronger in combination with thalidomide. In KG-1 cells, the level of VEGF (A, B, C and D) mRNA was decreased in curcumin-treated as compared to untreated cells. Maximum effects were obtained at the concentration of 40 μM curcumin in U937 cells. Taken together, the results indicate that the VEGF autocrine loop may have an impact on AML development and progression and could be considered as a therapeutic target. Thalidomide as a VEGF inhibitor in combination with curcumin appears to have a synergistic impact on inhibition of cell proliferation and promotion of apoptosis.
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Affiliation(s)
- Mahdieh Salemi
- Medical Biotechnology Research Center, Ashkezar Branch, Islamic Azad University, Ashkezar, Yazd, Iran.
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10
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Mirzaei A, Ghaffari SH, Nikbakht M, Kamranzadeh Foumani H, Vaezi M, Mohammadi S, Alimoghaddam K, Ghavamzadeh A. OPN b and c Isoforms Doubtless Veto Anti-angiogenesis Effects of Curcumin in Combination with Conventional AML Regiment. Asian Pac J Cancer Prev 2017; 18:2591-2599. [PMID: 28952709 PMCID: PMC5720671 DOI: 10.22034/apjcp.2017.18.9.2591] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Osteopontin (OPN) is an extracellular structural protein that is secreted by osteoblasts and hematopoietic cells. It suppresses the proliferation of hematopoietic stem and also plays an important role in promoting survival and drug resistance in leukemic stem cells (LSCs). Since the role of OPN isoforms in AML angiogenesis are remaining controversial, in the present study, we aimed to evaluate whether curcumin (CUR), as a known natural component with anti-angiogenesis effects, in a combination of AML conventional regiment has the potency to preclude induced anti-angiogenesis effects of OPN isoforms or not? Leukemia cells were treated with different concentration of CUR and AML conventional drugs alone and/or in combination with together to find effective doses and IC50 values. Percentages of apoptotic cells were evaluated by Annexin/PI staining and mRNA levels of OPN isoforms and AKT/ VEGF-A and VEGF-C/ STAT3/ β-catenin/ CXCR4/ IL-6/ KDR gene expression were investigated by Real Time-PCR method. Moreover, to confirm OPN gene expression data, we investigated the effect of simvastatin and OPN siRNA as an OPN inhibitor on the cell proliferation and induction of apoptosis in the indicated cell lines. Our data display that Ara-c (2μM and 1μM in KG-1 and U937 cell lines respectively), CUR (40μM in both cell lines), and also their combination significantly increased the percentage of apoptotic cells. Moreover, the mRNA level of OPN isoforms were down regulated in the KG-1and U937 cell lines treated with Ara-c while, upregulated in KG-1and U937 cell lines treated with CUR and its combination. Our results suggest that despite anti-angiogenesis effects of CUR, AML cells probably evade from anti-angiogenesis effects of CUR via induction of OPN b and c isoform and related molecular pathways.
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Affiliation(s)
- Akram Mirzaei
- Hematology, Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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11
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Haghi A, Mohammadi S, Heshmati M, Ghavamzadeh A, Nikbakht M. Anti-Vascular Endothelial Growth Factor Effects of Sorafenib and Arsenic Trioxide in Acute Myeloid Leukemia Cell Lines. Asian Pac J Cancer Prev 2017; 18:1655-1661. [PMID: 28670885 PMCID: PMC6373800 DOI: 10.22034/apjcp.2017.18.6.1655] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Acute myeloid leukemia (AML), is a clonal disorder caused by acquired somatic mutations and chromosomal
rearrangements. According to some evidence, progression of hematolymphoid malignancies depends on the induction
of new blood vessel formation under the influence of acute leukemia. Various factors are produced by cancer cells
under hypoxic conditions to increase vascular formation. Among these, vascular endothelial growth factor (VEGF)
plays a crucial role. Cytotoxicity and anticancer effects of arsenic trioxide (ATO) have been reported in many cancers.
Sorafenib, known as an angiogenic inhibitor, decreases leukemic cell survival. The aim of this study was to indicate
combination effects of ATO and sorafenib in two AML cell lines, KG-1 and U937. Effective doses was determined by
MTT assay for both single and combination treatments. Percentages of apoptotic cells were evaluated by Annexin V
FITC staining and mRNA levels of VEGF isoforms and receptor expression were investigated by Real-Time PCR. Our
data show that sorafenib (5μM and 7μM in KG-1 and U937 cell lines respectively), ATO (1.618μM and 1μM in KG-1
and U937 cell lines respectively), and also their combination significantly increased the percentage of apoptotic cells.
In addition the mRNA level of VEGF isoforms was downregulated in the U937 cell line while upregulated in KG-1
cells. Taken together, our results suggest that the VEGF autocrine loop may have an influence on AML development
and progression and could be consider as a therapeutic target. The combination of sorafenib as a VEGF inhibitor with
ATO synergistically inhibits cell proliferation and promotes apoptosis.
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Affiliation(s)
- Atousa Haghi
- Department of Molecular and Cellular Science, Faculty of Advanced Science and Technology, Islamic Azad University, Tehran-Iran.,Young Researchers and Elite Club, Pharmaceutical Science Branch, Islamic Azad University, Tehran-Iran.
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12
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Mirzaei A, Mohammadi S, Ghaffari SH, Nikbakht M, Bashash D, Alimoghaddam K, Ghavamzadeh A. Osteopontin b and c isoforms: Molecular Candidates Associated with Leukemic Stem Cell Chemoresistance in Acute Myeloid
Leukemia. Asian Pac J Cancer Prev 2017; 18:1707-1715. [PMID: 28670893 PMCID: PMC6373801 DOI: 10.22034/apjcp.2017.18.6.1707] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Despite impressive advances in therapeutic approaches, long-term survival with acute myeloid leukemia (AML) is
low as a result of treatment resistance and frequent relapse. Among multitude oncogenic proteins involved in acquisition
of a chemo-resistanr phenotype, osteopontin (OPN) recently has attracted marked attention. In spite of the well-defined
association between OPN expression and cure rate with solid tumors, there is a scarcity of information on any role of this
protein in AML cases. Based on the critical role of OPN in cell survival, it seems reasonable to hypothesize that isoform
expression levels may impact on regulation of apoptosis in AML cells in response to conventional chemotherapeutic
drugs and its relation to relapse. To investigate associations between induction of apoptosis and OPN isoform expression,
two distinct AML cell lines (KG-1 as a leukemic stem cell model and U937) were treated with chemotherapy drugs,
and cell viability and apoptosis were evaluated by MTT and Annexin/PI assay. After determination of appropriate drug
doses, mRNA expression levels of OPN isoforms and OPN-related genes were investigated. Our results demonstrated
for the first time that acquired up-regulation of OPN-b and c isoforms might prevent conventional chemotherapy
regimen-induced apoptosis in AML cells. Moreover, upregulation of OPN-b and c in AML cells appears concurrent
with upregulation of AKT/VEGF/CXCR4/STAT3/ IL-6 gene expression. To sum up, this study suggests that OPN-b
and c isoforms could be considered as unique beneficial molecular biomarkers associated with leukemic stem cell
chemoresistance. Hence, they have potential as molecular candidates for detection of minimal residual disease (MRD)
and determination of remission in AML patients. Further evaluation with quantative real time PCR on patient samples
for confirmation appears warranted.
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Affiliation(s)
- Akram Mirzaei
- Hematology, Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran. ,
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