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Liu Y, Mensah SK, Farias S, Khan S, Hasan T, Celli JP. Efficacy of photodynamic therapy using 5-aminolevulinic acid-induced photosensitization is enhanced in pancreatic cancer cells with acquired drug resistance. Photodiagnosis Photodyn Ther 2024; 50:104362. [PMID: 39395619 DOI: 10.1016/j.pdpdt.2024.104362] [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: 10/05/2024] [Accepted: 10/09/2024] [Indexed: 10/14/2024]
Abstract
The use of 5-aminolevulinic acid (ALA) as a precursor for protoporphyrin IX (PpIX) is an established photosensitization strategy for photodynamic therapy (PDT) and fluorescence guided surgery. Ongoing studies are focused on identifying approaches to enhance PpIX accumulation as well as to identify tumor sub-types associated with high PpIX accumulation. In this study, we investigated PpIX accumulation and PDT treatment response with respect to nodule size in 3D cultures of pancreatic cancer cells (Panc1) and a derivative subline (Panc1OR), which has acquired drug resistance and exhibits increased epithelial mesenchymal transition. In monolayer and 3D culture dose response studies the Panc1OR cells exhibit significantly a higher level of photokilling at lower light doses than the drug naïve cells. Panc1OR also exhibits increased PpIX accumulation. Further analysis of cell killing efficiency per molecule of intracellular PpIX indicates that the drug resistant cells are intrinsically more responsive to PDT. Additional investigation using exogenous delivery of PpIX also shows higher cell killing in drug resistant cells, under conditions which achieve approximately the same intracellular PpIX. Overall these results are significant as they demonstrate that this example of drug-resistant cells associated with aggressive disease progression and poor clinical outcomes, show increased sensitivity to ALA-PDT.
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Affiliation(s)
- Yiran Liu
- Department of Physics, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125, USA
| | - Sally Kyei Mensah
- Department of Physics, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125, USA
| | - Sergio Farias
- Department of Physics, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125, USA
| | - Shakir Khan
- Department of Physics, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125, USA; Wellman Center for Photomedicine, Massachusetts General Hospital, 40 Blossom St, Boston, MA 02114, USA
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital, 40 Blossom St, Boston, MA 02114, USA
| | - Jonathan P Celli
- Department of Physics, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125, USA; Wellman Center for Photomedicine, Massachusetts General Hospital, 40 Blossom St, Boston, MA 02114, USA; Center for Personalized Cancer Therapy, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125, USA.
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2
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Li M, Zhang HY, Zhang RG. MFAP2 enhances cisplatin resistance in gastric cancer cells by regulating autophagy. PeerJ 2023; 11:e15441. [PMID: 37304872 PMCID: PMC10257393 DOI: 10.7717/peerj.15441] [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: 02/03/2023] [Accepted: 04/28/2023] [Indexed: 06/13/2023] Open
Abstract
Background Cisplatin (CDDP) is of importance in cancer treatment and widely used in advanced gastric cancer (GC). However, its clinical usage is limited due to its resistance, and the regulatory mechanism of CDDP resistance in GC has not yet been fully elucidated. In this study, we first conducted a comprehensive study to investigate the role of MFAP2 through bioinformatics analysis. Methods The Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) databases were applied to downloadgene expression data and clinicopathologic data, and the differentially expressed genes (DEGs) were further analyzed. Then, Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis and survival analysis were conducted. Furthermore, according to the clinicopathological characteristics of TCGA, clinical correlation analysis was conducted, and a receiver operating characteristic curve (ROC) was plotted. Results We revealed that FAP, INHBA and MFAP2 were good diagnostic factors of GC. However, the mechanism of MFAP2 in GC remains elusive, especially in the aspect of chemotherapy resistance. We developed the CDDP-resistant cell line, and found that MFAP2 was upregulated in CDDP-resistant cells, and MFAP2-knockdown improved CDDP sensitivity. Finally, we found that MFAP2 enhanced CDDP resistance by inducing autophagy in drug-resistant cell lines. Conclusions The above results suggested that MFAP2 could affect the chemotherapy resistance by altering the level of autophagy in GC patients as a potential therapeutic target.
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Affiliation(s)
- Meng Li
- Department of Gastroenterology, General Hospital of the Chinese People’s Liberation Army, Beijing, China
| | - Hong-Yi Zhang
- Department of Stomatology, Beijing Electric Power Hospital, Capital Medical University, Beijing, China
| | - Rong-Gui Zhang
- Department of Gastroenterology, General Hospital of the Chinese People’s Liberation Army, Beijing, China
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Gu J, Zhong K, Wang L, Ni H, Zhao Y, Wang X, Yao Y, Jiang L, Wang B, Zhu X. ENO1 contributes to 5-fluorouracil resistance in colorectal cancer cells via EMT pathway. Front Oncol 2022; 12:1013035. [PMID: 36620599 PMCID: PMC9813957 DOI: 10.3389/fonc.2022.1013035] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022] Open
Abstract
Introduction Chemoresistance is a major barrier in the treatment of colorectal cancer (CRC) and many other cancers. ENO1 has been associated with various biological characteristics of CRC. This study aimed to investigate the function of ENO1 in regulating 5-Fluorouracil (5-FU) resistance in CRC. Methods ENO1 level in 120 pairs of tumor tissues and adjacent normal tissues was examined by immunohistochemistry, and the correlation between ENO1 expression and prognosis was explored by survival analysis. Its role and potential mechanisms in regulating 5-FU resistance in CRC were studied by Western blotting, MTT assay, colony formation assay and transwell invasion assay. Murine xenograft assay was implied to verify the results in vivo. Results Our study indicated that ENO1 was elevated in CRC tissues and was associated with poor patient prognosis. High levels of ENO1 expression were detected as a significant influencing factor for overall survival. Furthermore, ENO1 expression was found to have increased in drug-resistant cells (HCT116/5-FU and SW620/5-FU) constructed by increasing concentrations of 5-FU. Knockdown of ENO1 markedly increased the drug susceptibility and inhibited the proliferation and migration ability of HCT116/5-FU and SW620/5-FU cells. It was found that down-regulation of ENO1 inhibited the epithelial-mesenchymal transformation (EMT) signaling process. Finally, a murine xenograft assay verified that the depletion of ENO1 alleviated 5-FU resistance. Conclusion This study identified that ENO1 regulated 5-FU resistance via the EMT pathway and may be a novel target in the prevention and treatment of 5-FUresistant CRC.
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Affiliation(s)
- Jinrong Gu
- Department of General Surgery, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Kaiqiang Zhong
- Department of General Surgery, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Longgang Wang
- Department of Emergency Medicine, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Haishun Ni
- Department of General Surgery, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Yirui Zhao
- Department of General Surgery, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xuchao Wang
- Department of General Surgery, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Yizhou Yao
- Department of General Surgery, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Linhua Jiang
- Department of General Surgery, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Bin Wang
- Department of General Surgery, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China,*Correspondence: Xinguo Zhu, ; Bin Wang,
| | - Xinguo Zhu
- Department of General Surgery, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China,*Correspondence: Xinguo Zhu, ; Bin Wang,
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Duarte D, Nunes M, Ricardo S, Vale N. Combination of Antimalarial and CNS Drugs with Antineoplastic Agents in MCF-7 Breast and HT-29 Colon Cancer Cells: Biosafety Evaluation and Mechanism of Action. Biomolecules 2022; 12:biom12101490. [PMID: 36291699 PMCID: PMC9599492 DOI: 10.3390/biom12101490] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 02/05/2023] Open
Abstract
Drug combination and drug repurposing are two strategies that allow to find novel oncological therapies, in a faster and more economical process. In our previous studies, we developed a novel model of drug combination using antineoplastic and different repurposed drugs. We demonstrated the combinations of doxorubicin (DOX) + artesunate, DOX + chloroquine, paclitaxel (PTX) + fluoxetine, PTX + fluphenazine, and PTX + benztropine induce significant cytotoxicity in Michigan Cancer Foundation-7 (MCF-7) breast cancer cells. Furthermore, it was found that 5-FU + thioridazine and 5-fluorouracil (5-FU) + sertraline can synergistically induce a reduction in the viability of human colorectal adenocarcinoma cell line (HT-29). In this study, we aim to (1) evaluate the biosafety profile of these drug combinations for non-tumoral cells and (2) determine their mechanism of action in cancer cells. To do so, human fetal lung fibroblast cells (MRC-5) fibroblast cells were incubated for 48 h with all drugs, alone and in combination in concentrations of 0.25, 0.5, 1, 2, and 4 times their half-maximal inhibitory concentration (IC50). Cell morphology and viability were evaluated. Next, we designed and constructed a cell microarray to perform immunohistochemistry studies for the evaluation of palmitoyl-protein thioesterase 1 (PPT1), Ki67, cleaved-poly (ADP-ribose) polymerase (cleaved-PARP), multidrug resistance-associated protein 2 (MRP2), P-glycoprotein (P-gp), and nuclear factor-kappa-B (NF-kB) p65 expression. We demonstrate that these combinations are cytotoxic for cancer cells and safe for non-tumoral cells at lower concentrations. Furthermore, it is also demonstrated that PPT1 may have an important role in the mechanism of action of these combinations, as demonstrated by their ability to decrease PPT1 expression. These results support the use of antimalarial and central nervous system (CNS) drugs in combination regimens with chemotherapeutic agents; nevertheless, additional studies are recommended to further explore their complete mechanisms of action.
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Affiliation(s)
- Diana Duarte
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
- Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- CINTESIS@RISE, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal
| | - Mariana Nunes
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S), University of Porto/Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Sara Ricardo
- Differentiation and Cancer Group, Institute for Research and Innovation in Health (i3S), University of Porto/Institute of Molecular Pathology and Immunology, University of Porto (IPATIMUP), Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- Toxicology Research Unit (TOXRUN), University Institute of Health Sciences, Polytechnic and University Cooperative (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal
| | - Nuno Vale
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
- CINTESIS@RISE, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal
- Department of Community Medicine, Health Information and Decision (MEDCIDS), Faculty of Medicine, University of Porto, Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
- Correspondence: ; Tel.: +351-220426537
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Laminarin Attenuates ROS-Mediated Cell Migration and Invasiveness through Mitochondrial Dysfunction in Pancreatic Cancer Cells. Antioxidants (Basel) 2022; 11:antiox11091714. [PMID: 36139787 PMCID: PMC9495390 DOI: 10.3390/antiox11091714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 08/26/2022] [Accepted: 08/27/2022] [Indexed: 12/26/2022] Open
Abstract
Background: Pancreatic ductal adenocarcinoma (PDAC) is a notoriously aggressive type of cancer with a high metastasis rate. It is conventionally treated by surgical resection and neoadjuvant chemotherapy. However, continuous chemotherapy leads to relapse in most PDAC patients due to chemical resistance. Therefore, novel anticancer agents need to be identified and developed. The antitumor activities of laminarin extracted from brown algae against hepatocarcinoma, lung, and colon cancer have been established. However, its effects on pancreatic cancer have remained obscure. Purpose: Our study identified the anticancer effects of laminarin on pancreatic cancer cells and tried to explain its intracellular mechanisms. Methods: We assessed the cell viability of PANC-1 and MIA PaCa-2 cells using MTT assay. Hanging drop method was used for the spheroid formation. Flow cytometry was conducted to evaluate the several intracellular alterations including apoptosis, ROS production, mitochondrial membrane potential (MMP), and calcium concentration induced by laminarin. An invasion test was performed to assess the inhibitory effect of laminarin on cell migration and the invasive genes were evaluated by RT-qPCR. Signaling pathway related with anticancer effects of laminarin was analyzed by western blot. Results: We report that inhibiting laminarin increased the proliferation and viability of the representative pancreatic cancer cell lines, MIA PaCa-2 and PANC-1. Laminarin triggered apoptosis and mitochondrial impairment as evidenced by depolarized mitochondrial membranes, disrupted calcium, and suppressed cell migration caused by reactive oxygen species production and related intracellular signaling pathways. Moreover, laminarin showed synergistic effects when combined with 5-FU, a standard anticancer agent for PDAC. Conclusion: The present study is the first to report that laminarin exerts anticancer effect through ROS production in pancreatic cancer cells. Laminarin shows potential to serve as a new anticancer agent for treating PDAC.
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Sakarin S, Meesiripan N, Sangrajrang S, Suwanpidokkul N, Prayakprom P, Bodhibukkana C, Khaowroongrueng V, Suriyachan K, Thanasittichai S, Srisubat A, Surawongsin P, Rattanapinyopituk K. Antitumor Effects of Cannabinoids in Human Pancreatic Ductal Adenocarcinoma Cell Line (Capan-2)-Derived Xenograft Mouse Model. Front Vet Sci 2022; 9:867575. [PMID: 35937289 PMCID: PMC9353045 DOI: 10.3389/fvets.2022.867575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 06/17/2022] [Indexed: 11/26/2022] Open
Abstract
Background Pancreatic cancer is considered a rare type of cancer, but the mortality rate is high. Cannabinoids extracted from the cannabis plant have been interested as an alternative treatment in cancer patients. Only a few studies are available on the antitumor effects of cannabinoids in pancreatic cancer. Therefore, this study aims to evaluate the antitumor effects of cannabinoids in pancreatic cancer xenografted mouse model. Materials and Methods Twenty-five nude mice were subcutaneously transplanted with a human pancreatic ductal adenocarcinoma cell line (Capan-2). All mice were randomly assigned into 5 groups including negative control (gavage with sesame oil), positive control (5 mg/kg 5-fluorouracil intraperitoneal administration), and cannabinoids groups that daily received THC:CBD, 1:6 at 1, 5, or 10 mg/kg body weight for 30 days, respectively. Xenograft tumors and internal organs were collected for histopathological examination and immunohistochemistry. Results The average tumor volume was increased in all groups with no significant difference. The average apoptotic cells and caspase-3 positive cells were significantly increased in cannabinoid groups compared with the negative control group. The expression score of proliferating cell nuclear antigen in positive control and cannabinoids groups was decreased compared with the negative control group. Conclusions Cannabinoids have an antitumor effect on the Capan-2-derived xenograft mouse model though induce apoptosis and inhibit proliferation of tumor cells in a dose-dependent manner.
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Affiliation(s)
- Siriwan Sakarin
- Division of Research and Academic Support, National Cancer Institute, Bangkok, Thailand
| | - Nuntana Meesiripan
- Division of Research and Academic Support, National Cancer Institute, Bangkok, Thailand
| | - Suleeporn Sangrajrang
- Division of Research and Academic Support, National Cancer Institute, Bangkok, Thailand
| | | | | | | | | | - Kankanit Suriyachan
- Institute of Medical Research and Technology Assessment, Ministry of Public Health, Nonthaburi, Thailand
| | - Somchai Thanasittichai
- Institute of Medical Research and Technology Assessment, Ministry of Public Health, Nonthaburi, Thailand
| | - Attasit Srisubat
- Division of Medical Technical and Academic Affairs, Ministry of Public Health, Nonthaburi, Thailand
| | - Pattamaporn Surawongsin
- Research and Technology Assessment Department, Ophthalmology Department, Lerdsin Hospital, Bangkok, Thailand
| | - Kasem Rattanapinyopituk
- Center of Excellent for Companion Animal Cancer, Department of Veterinary Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
- *Correspondence: Kasem Rattanapinyopituk
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Li L, Zhong L, Tang C, Gan L, Mo T, Na J, He J, Huang Y. CD105: tumor diagnosis, prognostic marker and future tumor therapeutic target. Clin Transl Oncol 2022; 24:1447-1458. [PMID: 35165838 DOI: 10.1007/s12094-022-02792-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 01/21/2022] [Indexed: 02/06/2023]
Abstract
Cancer is one of the diseases with the highest morbidity and mortality rates worldwide, and its therapeutic options are inadequate. The endothelial glycoprotein, also known as CD105, is a type I transmembrane glycoprotein located on the surface of the cell membranes and it is one of the transforming growth factor-β (TGF-β) receptor complexes. It regulates the responses associated with binding to transforming growth factor β1 egg (Activin-A), bone morphogenetic protein 2 (BMP-2), and bone morphogenetic protein 7 (BMP-7). Additionally, it is involved in the regulation of angiogenesis. This glycoprotein is indispensable in the treatment of tumor angiogenesis, and it also plays a leading role in tumor angiogenesis therapy. Therefore, CD105 is considered to be a novel therapeutic target. In this study, we explored the significance of CD105 in the diagnosis, treatment and prognosis of various tumors, and provided evidence for the effect and mechanism of CD105 on tumors.
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Affiliation(s)
- Lan Li
- National Center for International Research of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, Guangxi Medical University, Nanning, 530021, Guangxi, China
- Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Liping Zhong
- National Center for International Research of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, Guangxi Medical University, Nanning, 530021, Guangxi, China
- Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Chao Tang
- National Center for International Research of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, Guangxi Medical University, Nanning, 530021, Guangxi, China
- Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Lu Gan
- National Center for International Research of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, Guangxi Medical University, Nanning, 530021, Guangxi, China
- Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Tong Mo
- National Center for International Research of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, Guangxi Medical University, Nanning, 530021, Guangxi, China
- Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Jintong Na
- National Center for International Research of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, Guangxi Medical University, Nanning, 530021, Guangxi, China
- Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Jian He
- National Center for International Research of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, Guangxi Medical University, Nanning, 530021, Guangxi, China
- Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Yong Huang
- National Center for International Research of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, Guangxi Medical University, Nanning, 530021, Guangxi, China.
- Guangxi Medical University, Nanning, 530021, Guangxi, China.
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Zhang F, Wang Y, Yang F, Zhang Y, Jiang M, Zhang X. The Efficacy and Safety of PD-1 Inhibitors Combined with Nab-Paclitaxel Plus Gemcitabine versus Nab-Paclitaxel Plus Gemcitabine in the First-Line Treatment of Advanced Pancreatic Cancer: A Retrospective Monocentric Study. Cancer Manag Res 2022; 14:535-546. [PMID: 35173487 PMCID: PMC8841313 DOI: 10.2147/cmar.s349442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/22/2022] [Indexed: 12/12/2022] Open
Abstract
Purpose The purpose of this study was to evaluate the efficacy and safety of PD-1 inhibitor combined with nab-paclitaxel plus gemcitabine (AG) chemotherapy versus AG chemotherapy in the first-line treatment of advanced pancreatic cancer. Patients and Methods This study included the application of AG treatment and PD-1 combined with AG treatment with advanced pancreatic ductal adenocarcinoma at the Affiliated Hospital of Qingdao University from September 2018 to July 2020. Clinical information and next-generation sequencing (NGS) reports of patients were collected to compare the effectiveness and adverse events of the two treatments and analyze the risk factors affecting the prognosis of patients. Results There was no difference in PFS between the AG group and the PD-1+AG group (4.9 months vs 5.0 months, P = 0.154), but the difference in OS was statistically significant (9.3 months vs 12.1 months, P < 0.001). Compared with the AG group, the PD-1+AG group reduced the risk of death about 20.0% (HR = 0.203, 95% CI, 0.090−0.459, P < 0.001). In terms of safety, the incidence of hypothyroidism and reactive skin capillary hyperplasia in PD-1 + AG group was higher than that in AG group (P < 0.050) in grade 1–2; grade 3–4 adverse reactions were mainly hematologic AEs and abnormal liver function. The incidence of grade 3–4 adverse reactions in the two groups was 38.7% (95% CI, 20.5–56.9%) and 35.3% (95% CI, 10.0–60.6%), respectively. In addition, PD-1+ AG regimen improved the OS of patients with KRAS and TP53 co-mutations (8.0months vs 10.2 months, P = 0.004). Conclusion PD-1 inhibitors combined with AG chemotherapy have shown good efficacy and safety in the first-line treatment of patients with advanced pancreatic ductal adenocarcinoma. This regimen similarly improved OS in patients with KRAS and TP53 co-mutations.
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Affiliation(s)
- Feng Zhang
- Precision Medicine Center of Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, People’s Republic of China
| | - Yuyang Wang
- Precision Medicine Center of Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, People’s Republic of China
| | - Fangfang Yang
- Precision Medicine Center of Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, People’s Republic of China
| | - Yuming Zhang
- Precision Medicine Center of Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, People’s Republic of China
| | - Man Jiang
- Precision Medicine Center of Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, People’s Republic of China
- Correspondence: Man Jiang; Xiaochun Zhang, Precision Medicine Center of Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, 59Haier Road, LaoShan District, Qingdao, 266003, People’s Republic of China, Tel/Fax +86053282913271, Email ;
| | - Xiaochun Zhang
- Precision Medicine Center of Oncology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266003, People’s Republic of China
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Ciszewski WM, Włodarczyk J, Chmielewska-Kassassir M, Fichna J, Wozniak LA, Sobierajska K. Evening primrose seed extract rich in polyphenols modulates the invasiveness of colon cancer cells by regulating the TYMS expression. Food Funct 2022; 13:10994-11007. [DOI: 10.1039/d2fo01737g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Natural polyphenols are plant metabolites exhibiting a broad range of biological activities.
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Affiliation(s)
- Wojciech M. Ciszewski
- Department of Molecular Cell Mechanisms, Medical University of Lodz, Mazowiecka 6/8, 92-215 Lodz, Poland
| | - Jakub Włodarczyk
- Department of Biochemistry, Medical University of Lodz, Mazowiecka 6/8, 92-215 Lodz, Poland
| | | | - Jakub Fichna
- Department of Biochemistry, Medical University of Lodz, Mazowiecka 6/8, 92-215 Lodz, Poland
| | - Lucyna A. Wozniak
- Department of Structural Biology, Medical University of Lodz, Zeligowskiego 7/9, 90-752, Lodz, Poland
| | - Katarzyna Sobierajska
- Department of Molecular Cell Mechanisms, Medical University of Lodz, Mazowiecka 6/8, 92-215 Lodz, Poland
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10
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Weisheit S, Wegner CS, Ailte I, Radulovic M, Weyergang A, Kristian Selbo P, Brech A. Inhibiting autophagy increases the efficacy of low-dose photodynamic therapy. Biochem Pharmacol 2021; 194:114837. [PMID: 34780750 DOI: 10.1016/j.bcp.2021.114837] [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: 05/28/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 11/24/2022]
Abstract
Rupture and permeabilization of endocytic vesicles can be triggered by various causes, such as pathogenic invasions, amyloid proteins, and silica crystals leading to cell death and degeneration. A cellular quality control process, called lysophagy was recently described to target damaged lysosomes for autophagic sequestration within isolation membranes in order to protect the cell from the consequences of lysosomal leakage. This protective process, however, might interfere with treatment conditions, such as photodynamic therapy (PDT) and the intracellular drug delivery method photochemical internalization (PCI). PCI-induced permeabilization of endosomes and lysosomes is purposely triggered to release drugs that are sequestered in these organelles into the cytosol in order to synergistically kill cancer cells. Here, we show that photochemical treatment with the PCI-photosensitizer TPCS2a/fimaporfin results in both induction of autophagy and inhibition of the autophagic flux. The autophagic response is accompanied by recruitment of ubiquitin (Ubq), p62, and microtubule-associated protein 1A/1B-light chain 3 (LC3) to damaged vesicles, marked by Galectin 3 (Gal3). Furthermore, ultrastructural analysis revealed a homogenously thick p62-positive layer surrounding these permeabilized vesicles. Although p62 seems to be important during the selective autophagic sequestration, we show that its presence is not essential for the effective removal of damaged vesicles or the recovery of the lysosomal content. An active autophagic response and the presence of p62, however, is important for cancer cells to survive low-dose TPCS2a-PDT. Thus, targeting both p62 and autophagy together and independently, in a light-controlled/PCI based delivery of cancer therapeutics could increase the effectiveness of the treatment regime.
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Affiliation(s)
- Sabine Weisheit
- Department of Molecular Cell Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, N-0379 Oslo, Norway
| | - Catherine S Wegner
- Department of Molecular Cell Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, N-0379 Oslo, Norway
| | - Ieva Ailte
- Department of Molecular Cell Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, N-0379 Oslo, Norway
| | - Maja Radulovic
- Department of Molecular Cell Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, N-0379 Oslo, Norway
| | - Anette Weyergang
- Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, N-0379 Oslo, Norway
| | - Pål Kristian Selbo
- Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, N-0379 Oslo, Norway
| | - Andreas Brech
- Department of Molecular Cell Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Montebello, N-0379 Oslo, Norway.
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11
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Li J, Chen X, Kang R, Zeh H, Klionsky DJ, Tang D. Regulation and function of autophagy in pancreatic cancer. Autophagy 2021; 17:3275-3296. [PMID: 33161807 PMCID: PMC8632104 DOI: 10.1080/15548627.2020.1847462] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/26/2020] [Accepted: 11/02/2020] [Indexed: 12/12/2022] Open
Abstract
Oncogenic KRAS mutation-driven pancreatic ductal adenocarcinoma is currently the fourth-leading cause of cancer-related deaths in the United States. Macroautophagy (hereafter "autophagy") is one of the lysosome-dependent degradation systems that can remove abnormal proteins, damaged organelles, or invading pathogens by activating dynamic membrane structures (e.g., phagophores, autophagosomes, and autolysosomes). Impaired autophagy (including excessive activation and defects) is a pathological feature of human diseases, including pancreatic cancer. However, dysfunctional autophagy has many types and plays a complex role in pancreatic tumor biology, depending on various factors, such as tumor stage, microenvironment, immunometabolic state, and death signals. As a modulator connecting various cellular events, pharmacological targeting of nonselective autophagy may lead to both good and bad therapeutic effects. In contrast, targeting selective autophagy could reduce potential side effects of the drugs used. In this review, we describe the advances and challenges of autophagy in the development and therapy of pancreatic cancer.Abbreviations: AMPK: AMP-activated protein kinase; CQ: chloroquine; csc: cancer stem cells; DAMP: danger/damage-associated molecular pattern; EMT: epithelial-mesenchymal transition; lncRNA: long noncoding RNA; MIR: microRNA; PanIN: pancreatic intraepithelial neoplasia; PDAC: pancreatic ductal adenocarcinoma; PtdIns3K: phosphatidylinositol 3-kinase; SNARE: soluble NSF attachment protein receptor; UPS: ubiquitin-proteasome system.
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Affiliation(s)
- Jingbo Li
- Department of Surgery, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Xin Chen
- Department of Surgery, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Rui Kang
- Department of Surgery, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Herbert Zeh
- Department of Surgery, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Daniel J. Klionsky
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - Daolin Tang
- Department of Surgery, UT Southwestern Medical Center, Dallas, Texas, USA
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12
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Principe DR, Underwood PW, Korc M, Trevino JG, Munshi HG, Rana A. The Current Treatment Paradigm for Pancreatic Ductal Adenocarcinoma and Barriers to Therapeutic Efficacy. Front Oncol 2021; 11:688377. [PMID: 34336673 PMCID: PMC8319847 DOI: 10.3389/fonc.2021.688377] [Citation(s) in RCA: 97] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/29/2021] [Indexed: 12/15/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) has a dismal prognosis, with a median survival time of 10-12 months. Clinically, these poor outcomes are attributed to several factors, including late stage at the time of diagnosis impeding resectability, as well as multi-drug resistance. Despite the high prevalence of drug-resistant phenotypes, nearly all patients are offered chemotherapy leading to modest improvements in postoperative survival. However, chemotherapy is all too often associated with toxicity, and many patients elect for palliative care. In cases of inoperable disease, cytotoxic therapies are less efficacious but still carry the same risk of serious adverse effects, and clinical outcomes remain particularly poor. Here we discuss the current state of pancreatic cancer therapy, both surgical and medical, and emerging factors limiting the efficacy of both. Combined, this review highlights an unmet clinical need to improve our understanding of the mechanisms underlying the poor therapeutic responses seen in patients with PDAC, in hopes of increasing drug efficacy, extending patient survival, and improving quality of life.
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Affiliation(s)
- Daniel R. Principe
- Medical Scientist Training Program, University of Illinois College of Medicine, Chicago, IL, United States
- Department of Surgery, University of Illinois at Chicago, Chicago, IL, United States
| | | | - Murray Korc
- Department of Developmental and Cell Biology, University of California, Irvine, CA, United States
| | - Jose G. Trevino
- Department of Surgery, Division of Surgical Oncology, Virginia Commonwealth University, Richmond, VA, United States
| | - Hidayatullah G. Munshi
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Jesse Brown VA Medical Center, Chicago, IL, United States
| | - Ajay Rana
- Department of Surgery, University of Illinois at Chicago, Chicago, IL, United States
- Jesse Brown VA Medical Center, Chicago, IL, United States
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13
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Yu Y, Yang FH, Zhang WT, Guo YD, Ye L, Yao XD. Mesenchymal stem cells desensitize castration-resistant prostate cancer to docetaxel chemotherapy via inducing TGF-β1-mediated cell autophagy. Cell Biosci 2021; 11:7. [PMID: 33413648 PMCID: PMC7792182 DOI: 10.1186/s13578-020-00494-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 11/09/2020] [Indexed: 11/10/2022] Open
Abstract
Background Mesenchymal stem cells (MSCs) have been proved to drive castration resistant prostate cancer (CRPC). In this study, we aim to investigate the contribution of MSCs to the development of docetaxel resistance in CRPC cells and its potential mechanisms. Methods The effect of MSCs on CRPC cells resistance to docetaxel was determined using in vivo and in vitro approaches. CCK8 and PI/Annexin V-FITC assay were used to examined the cell viability and apoptosis. The concentration of transforming growth factor-β1 was measured by enzyme-linked immunosorbent assay and small interfering RNA was used for functional analyses. Results MSCs significantly reduced the sensitivity of CRPC cells to docetaxel-induced proliferation inhibition and apoptosis promotion in vivo and in vitro. CRPC cells cocultured with MSCs under docetaxel administration have an increased autophagy activation, while autophagy inhibitor could effectively reversed MSCs-induced resistance to docetaxel. Additionally, MSCs-induced CRPC cell autophagy increase under docetaxel administration depends on MSCs secreting TGF-β1 and inhibition of TGF-β1 secretion in MSCs could consequently increase the sensitivity of CRPC cells to docetaxel. Conclusions These results suggest that docetaxel administrated CRPC cells may elicit MSCs secreting TGF-β1 increase, which desensitizes CRPC to docetaxel chemotherapy accelerating chemoresistance occurrence via inducing cell autophagy.
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Affiliation(s)
- Yang Yu
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Fu-Han Yang
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Wen-Tao Zhang
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Ya-Dong Guo
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Lin Ye
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
| | - Xu-Dong Yao
- Department of Urology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
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14
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Gao Z, Wu J, Wu X, Zheng J, Ou Y. SRPX2 boosts pancreatic cancer chemoresistance by activating PI3K/AKT axis. Open Med (Wars) 2020; 15:1072-1082. [PMID: 33336063 PMCID: PMC7718643 DOI: 10.1515/med-2020-0157] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/02/2020] [Accepted: 08/07/2020] [Indexed: 12/28/2022] Open
Abstract
Background and aim This investigation was aimed at disclosing whether SRPX2 affected pancreatic cancer (PC) chemoresistance by regulating PI3K/Akt/mTOR signaling. Methods Totally 243 PC patients were recruited, and they were incorporated into partial remission (PR) group, stable disease (SD) group and progressive disease (PD) group in accordance with their chemotherapeutic response. PC cell lines (i.e. AsPC1, Capan2, VFPAC-1, HPAC, PANC-1, BxPC-3 and SW1990) and human pancreatic ductal epithelial cell lines (hTERT-HPNE) were also collected. Results PC patients of SD + PD group were associated with higher post-chemotherapeutic SRPX2 level than PR group, and their post-chemotherapeutic SRPX2 level was above the pretherapeutic SRPX2 level (P < 0.05). PR population showed lower SRPX2 level after chemotherapy than before chemotherapy (P < 0.05). Besides high serum SRPX2 level and SRPX2 level change before and after chemotherapy were independent predictors of poor PC prognosis. Additionally, si-SRPX2 enhanced chemosensitivity of PC cell lines, and expressions of p-PI3K, p-AKT and p-mTOR were suppressed by si-SRPX2 (P < 0.05). IGF-1 treatment could changeover the impact of si-SRPX2 on proliferation, migration, invasion and chemoresistance of PC cells (P < 0.05). Conclusion The SRPX2-PI3K/AKT/mTOR axis could play a role in modifying progression and chemoresistance of PC cells, which might help to improve PC prognosis.
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Affiliation(s)
- Zhenyuan Gao
- Department of Oncology, The First Affiliated Hospital of Bengbu Medical College, 287 Changhuai Road, Anhui, China
| | - Jisong Wu
- Department of Oncology, The First Affiliated Hospital of Bengbu Medical College, 287 Changhuai Road, Anhui, China
| | - Xiao Wu
- Department of Oncology, The First Affiliated Hospital of Bengbu Medical College, 287 Changhuai Road, Anhui, China
| | - Jialei Zheng
- Department of Oncology, The First Affiliated Hospital of Bengbu Medical College, 287 Changhuai Road, Anhui, China
| | - Yimei Ou
- Department of Oncology, The First Affiliated Hospital of Bengbu Medical College, 287 Changhuai Road, Anhui, China
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15
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Sun L, Wang Y, Zhang H, Min C, Zhang Y, Zhang C, Xin Z, Zhu S, Yang Y, Burge RE, Yuan X. Graphene-Based Confocal Refractive Index Microscopy for Label-Free Differentiation of Living Epithelial and Mesenchymal Cells. ACS Sens 2020; 5:510-518. [PMID: 31927913 DOI: 10.1021/acssensors.9b02340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Label-free imaging and investigation of living cells are significant for many biomedical studies. It has been challenging to detect the epithelial-mesenchymal transition of cells in situ without affecting cellular activity. Here, we present a common-path differential confocal microscope based on the polarization-sensitive absorption of graphene to realize high-performance refractive index imaging and differentiation of living colorectal cancer cells (HCT116) with large detecting depth (1.29 μm), excellent refractive index resolution (2.86 × 10-5 RIU), and high spatial resolution (727 nm) simultaneously. Compared with epithelial (parental HCT116) cells, mesenchymal (paclitaxel-resistant HCT116) cells manifest generally lower refractive index values through the refractive index statistics, which is due to the stronger migration ability and weaker surface adherence of mesenchymal cells. The graphene-based microscopy provides an effective label-free approach to high-resolution imaging and study of living cell kinetics, and we expect it to be widely used in the research fields of pathology, tumorigenesis, and chemotherapy.
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Affiliation(s)
- Lixun Sun
- Nanophotonics Research Centre, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology, Shenzhen University, Shenzhen 518060, China
| | - Yijia Wang
- Laboratory of Oncologic Molecular Medicine, Tianjin Union Medical Center, Tianjin 300121, China
| | - Huiqin Zhang
- Institute of Modern Optics, Nankai University, Tianjin 300071, China
| | - Changjun Min
- Nanophotonics Research Centre, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology, Shenzhen University, Shenzhen 518060, China
| | - Yuquan Zhang
- Nanophotonics Research Centre, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology, Shenzhen University, Shenzhen 518060, China
| | - Chonglei Zhang
- Nanophotonics Research Centre, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology, Shenzhen University, Shenzhen 518060, China
| | - Ziqiang Xin
- Nanophotonics Research Centre, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology, Shenzhen University, Shenzhen 518060, China
| | - Siwei Zhu
- Laboratory of Oncologic Molecular Medicine, Tianjin Union Medical Center, Tianjin 300121, China
| | - Yong Yang
- Institute of Modern Optics, Nankai University, Tianjin 300071, China
| | - Ronald E. Burge
- Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K
| | - Xiaocong Yuan
- Nanophotonics Research Centre, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology, Shenzhen University, Shenzhen 518060, China
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16
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Wong JJW, Selbo PK. High aldehyde dehydrogenase activity does not protect colon cancer cells against TPCS 2a-sensitized photokilling. Photochem Photobiol Sci 2020; 19:308-312. [PMID: 32108197 DOI: 10.1039/c9pp00453j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aldehyde dehydrogenases (ALDH) are detoxifying enzymes that are upregulated in cancer stem cells (CSCs) and may cause chemo- and ionizing radiation (IR) therapy resistance. By using the ALDEFLUOR assay, CD133 + human colon cancer cells HT-29, were FACSorted into three populations: ALDHbright, ALDHdim and unsorted (bulk) and treated with chemo-, radio- or photodynamic therapy (PDT) using the clinical relevant photosensitizer disulfonated tetraphenyl chlorin (TPCS2a/fimaporfin). Here we show that there is no difference in cytotoxic responses to TPCS2a-PDT in ALHDbright, ALDHdim or bulk cancer cells. Likewise, both 5-FU and oxaliplatin chemotherapy efficacy was not reduced in ALDHbright as compared to ALDHdim cancer cells. However, we found that ALHDbright HT-29 cells are significantly less sensitive to ionizing radiation compared to ALDHdim cells. This study demonstrates that the cytotoxic response to PDT (using TPCS2a as photosensitizer) is independent of ALDH activity in HT-29 cancer cells. Our results further strengthen the use of TPCS2a to target CSCs.
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Affiliation(s)
- Judith Jing Wen Wong
- Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital Oslo University Hospital Montebello, 0379, Oslo, Norway
| | - Pål Kristian Selbo
- Department of Radiation Biology, Institute for Cancer Research, The Norwegian Radium Hospital Oslo University Hospital Montebello, 0379, Oslo, Norway
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Cancer Stem Cell Marker Endoglin (CD105) Induces Epithelial Mesenchymal Transition (EMT) but Not Metastasis in Clear Cell Renal Cell Carcinoma. Stem Cells Int 2019; 2019:9060152. [PMID: 31015843 PMCID: PMC6444238 DOI: 10.1155/2019/9060152] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 01/07/2019] [Accepted: 01/16/2019] [Indexed: 12/11/2022] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is the most common histological subtype of kidney cancer. We previously reported that CD105(+) subpopulation in human ccRCC tumors possesses tumor cell self-renewal and chemoresistance capability. In this study, we showed that CD105(+) ACHN tumor cells exhibit epithelial mesenchymal transition (EMT) phenotype with high expression of mesenchymal marker N-cadherin and low expression of epithelial marker E-cadherin. They are more motile and invasive compared to the unselected parental ACHN tumor cells. The knockdown of CD105 by RNA interference led to the downregulation of N-cadherin and the upregulation of E-cadherin and reduced motility and invasiveness of CD105(+) cells. Overexpression of stem cell factor MYC in CD105 knocked down cells increased mesenchymal markers and cell motility. However, the CD105(+) population of tumor cells does not exhibit an increase metastatic potential in vivo. Findings from this study support that CD105 plays a functional role in maintaining cancer stem cell and EMT phenotype, with MYC as a common mediator for both of these traits. Our work suggests that the ability to metastasize does not coincide with the cancer stem cell or EMT function of CD105.
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