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McAleese CE, Choudhury C, Butcher NJ, Minchin RF. Hypoxia-mediated drug resistance in breast cancers. Cancer Lett 2020; 502:189-199. [PMID: 33278499 DOI: 10.1016/j.canlet.2020.11.045] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/23/2020] [Accepted: 11/26/2020] [Indexed: 02/07/2023]
Abstract
Tissue hypoxia in solid tumors is caused by several pathological changes associated with tumor growth, including altered microvasculature structure, increased diffusional distances, and tumor-associated anemia. As the oxygen tension decreases, tumor cells adapt to the limited oxygen supply. Previous studies have shown that such adaptation leads to an aggressive phenotype that is resistant to many anti-cancer therapies. Induction of hypoxia inducible factors (HIFs) mediates many proteomic and genomic changes associated with tumor hypoxia. In breast cancers, HIFs not only predict poor prognosis, but also promote metastasis and drug resistance. Several studies have proposed HIF-1α as a druggable target in drug-resistant breast cancers, leading to the synthesis and development of small molecule inhibitors. Disappointingly, however, none of these small molecule inhibitors have progressed to clinical use. In this review, we briefly discuss the role of HIF-1α in breast cancer drug resistance and summarize the current and future approaches to targeting this transcription factor in breast cancer treatment.
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Affiliation(s)
- Courtney E McAleese
- School of Biomedical Sciences, University of Queensland, Brisbane, 4072, Australia
| | - Chandra Choudhury
- School of Biomedical Sciences, University of Queensland, Brisbane, 4072, Australia
| | - Neville J Butcher
- School of Biomedical Sciences, University of Queensland, Brisbane, 4072, Australia
| | - Rodney F Minchin
- School of Biomedical Sciences, University of Queensland, Brisbane, 4072, Australia.
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52
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Sen P, Ghosal S, Hazra R, Mohanty R, Arega S, Sahu B, Ganguly N. CRISPR-mediated knockdown of miR-214 modulates cell fate in response to anti-cancer drugs in HPV-negative and HPV-positive cervical cancer cells. J Biosci 2020. [DOI: 10.1007/s12038-020-00054-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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53
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Peng X, Wei Z, Gerweck LE. Making radiation therapy more effective in the era of precision medicine. PRECISION CLINICAL MEDICINE 2020; 3:272-283. [PMID: 35692625 PMCID: PMC8982539 DOI: 10.1093/pcmedi/pbaa038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 11/18/2020] [Accepted: 11/22/2020] [Indexed: 02/05/2023] Open
Abstract
Cancer has become a leading cause of death and constitutes an enormous burden worldwide. Radiation is a principle treatment modality used alone or in combination with other forms of therapy, with 50%–70% of cancer patients receiving radiotherapy at some point during their illness. It has been suggested that traditional radiotherapy (daily fractions of approximately 1.8–2 Gy over several weeks) might select for radioresistant tumor cell sub-populations, which, if not sterilized, give rise to local treatment failure and distant metastases. Thus, the challenge is to develop treatment strategies and schedules to eradicate the resistant subpopulation of tumorigenic cells rather than the predominant sensitive tumor cell population. With continued technological advances including enhanced conformal treatment technology, radiation oncologists can increasingly maximize the dose to tumors while sparing adjacent normal tissues, to limit toxicity and damage to the latter. Increased dose conformality also facilitates changes in treatment schedules, such as changes in dose per treatment fraction and number of treatment fractions, to enhance the therapeutic ratio. For example, the recently developed large dose per fraction treatment schedules (hypofractionation) have shown clinical advantage over conventional treatment schedules in some tumor types. Experimental studies suggest that following large acute doses of radiation, recurrent tumors, presumably sustained by the most resistant tumor cell populations, may in fact be equally or more radiation sensitive than the primary tumor. In this review, we summarize the related advances in radiotherapy, including the increasing understanding of the molecular mechanisms of radioresistance, and the targeting of these mechanisms with potent small molecule inhibitors, which may selectively sensitize tumor cells to radiation.
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Affiliation(s)
- Xingchen Peng
- Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Zhigong Wei
- Department of Biotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Leo E Gerweck
- Department of Radiation Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
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Maloney SM, Hoover CA, Morejon-Lasso LV, Prosperi JR. Mechanisms of Taxane Resistance. Cancers (Basel) 2020; 12:E3323. [PMID: 33182737 PMCID: PMC7697134 DOI: 10.3390/cancers12113323] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 10/30/2020] [Accepted: 11/06/2020] [Indexed: 12/17/2022] Open
Abstract
The taxane family of chemotherapy drugs has been used to treat a variety of mostly epithelial-derived tumors and remain the first-line treatment for some cancers. Despite the improved survival time and reduction of tumor size observed in some patients, many have no response to the drugs or develop resistance over time. Taxane resistance is multi-faceted and involves multiple pathways in proliferation, apoptosis, metabolism, and the transport of foreign substances. In this review, we dive deeper into hypothesized resistance mechanisms from research during the last decade, with a focus on the cancer types that use taxanes as first-line treatment but frequently develop resistance to them. Furthermore, we will discuss current clinical inhibitors and those yet to be approved that target key pathways or proteins and aim to reverse resistance in combination with taxanes or individually. Lastly, we will highlight taxane response biomarkers, specific genes with monitored expression and correlated with response to taxanes, mentioning those currently being used and those that should be adopted. The future directions of taxanes involve more personalized approaches to treatment by tailoring drug-inhibitor combinations or alternatives depending on levels of resistance biomarkers. We hope that this review will identify gaps in knowledge surrounding taxane resistance that future research or clinical trials can overcome.
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Affiliation(s)
- Sara M. Maloney
- Harper Cancer Research Institute, South Bend, IN 46617, USA;
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, South Bend, IN 46617, USA
| | - Camden A. Hoover
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA; (C.A.H.); (L.V.M.-L.)
| | - Lorena V. Morejon-Lasso
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA; (C.A.H.); (L.V.M.-L.)
| | - Jenifer R. Prosperi
- Harper Cancer Research Institute, South Bend, IN 46617, USA;
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, South Bend, IN 46617, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA; (C.A.H.); (L.V.M.-L.)
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55
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Zhang X, Di C, Chen Y, Wang J, Su R, Huang G, Xu C, Chen X, Long F, Yang H, Zhang H. Multilevel regulation and molecular mechanism of poly (rC)-binding protein 1 in cancer. FASEB J 2020; 34:15647-15658. [PMID: 33058239 DOI: 10.1096/fj.202000911r] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 09/02/2020] [Accepted: 09/15/2020] [Indexed: 01/07/2023]
Abstract
Poly (rC)-binding protein 1 (PCBP1), an RNA- or DNA-binding protein with a relative molecular weight of 38 kDa, which is characterized by downregulation in many cancer types. Numerous cases have indicated that PCBP1 could be considered as a tumor suppressor to inhibit tumorigenesis, development, and metastasis. In the current review, we described the multilevel regulatory roles of PCBP1, including gene transcription, alternative splicing, and translation of many cancer-related genes. Additionally, we also provided a brief overview about the inhibitory effect of PCBP1 on most common tumors. More importantly, we summarized the current research status about PCBP1 in hypoxic microenvironment, autophagy, apoptosis, and chemotherapy of cancer cells, aiming to clarify the molecular mechanisms of PCBP1 in cancer. Taken together, in-depth study of PCBP1 in cancer may provide new ideas for cancer therapy.
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Affiliation(s)
- Xuetian Zhang
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Cuixia Di
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Yuhong Chen
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Jing Wang
- School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Ruowei Su
- The First Affiliated Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Guomin Huang
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Caipeng Xu
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Xiaohua Chen
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Feng Long
- Gansu University of Traditional Chinese Medicine, Lanzhou, China
| | - Hongying Yang
- School of Radiation Medicine and Protection, Medical College of Soochow, Soochow, China
| | - Hong Zhang
- Bio-Medical Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.,School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, China
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56
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Yang Z, Huang R, Wei X, Yu W, Min Z, Ye M. The SIRT6-Autophagy-Warburg Effect Axis in Papillary Thyroid Cancer. Front Oncol 2020; 10:1265. [PMID: 32983963 PMCID: PMC7485319 DOI: 10.3389/fonc.2020.01265] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 06/18/2020] [Indexed: 12/31/2022] Open
Abstract
As shown in our previous study, SIRT6 promotes an aggressive phenotype and the epithelial-mesenchymal transition (EMT) in papillary thyroid cancer (PTC). In this study, we focused on the regulatory axis including SIRT6, autophagy, and the Warburg effect. We innovatively confirmed that SIRT6 overexpression depleted histone H3 lysine 56 acetylation (H3K56ac) of the negative regulator of reactive oxygen species (NRROS) in vitro, thus increasing reactive oxygen species (ROS) production. The accumulated ROS then activated endoplasmic reticulum stress (ER stress) and subsequently induced autophagy. Furthermore, SIRT6 overexpression inhibited glucose transporter 1 (GLUT1) via autophagy-mediated degradation, ultimately suppressing the Warburg effect. Treatment with the ROS scavenger N-acetyl-L-cysteine (NAC, 5 mM) or the autophagy inhibitor chloroquine (CQ) both rescued the inhibition of the Warburg effect. Additionally, a higher concentration of NAC (15 mM) further inhibited the Warburg effect. These concentration-dependent bilateral effects of NAC on this process were confirmed to be due to the regulation of the AMPK signaling pathway. Finally, we further examined this mechanism in vivo by establishing subcutaneous xenografts in nude mice and analyzed the tumors using 18F radio-labeled fluorodeoxyglucose (18F-FDG) PET/CT. In conclusion, we identified a SIRT6-ROS-ER stress-autophagy-GLUT1-Warburg effect axis in PTC, which may provide a new therapeutic target. In addition, NAC (low concentration) and CQ, previously considered to be tumor inhibitors, were shown to promote tumorigenesis in PTC with high SIRT6 expression by inducing the Warburg effect.
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Affiliation(s)
- Zhou Yang
- Department of General Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Renhong Huang
- Department of General Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Xiyi Wei
- The State Key Lab of Reproductive, Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Weiping Yu
- Department of General Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Zhijun Min
- Department of General Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Min Ye
- Department of General Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
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57
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Hederagenin potentiated cisplatin- and paclitaxel-mediated cytotoxicity by impairing autophagy in lung cancer cells. Cell Death Dis 2020; 11:611. [PMID: 32792495 PMCID: PMC7426971 DOI: 10.1038/s41419-020-02880-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 08/05/2020] [Accepted: 08/05/2020] [Indexed: 12/17/2022]
Abstract
Autophagy inhibition has been demonstrated to increase the efficacy of conventional chemotherapy. In this study, we identified hederagenin, a triterpenoid derived from Hedera helix, as a potent inhibitor of autophagy and then hypothesized that hederagenin might synergize with chemotherapeutic drugs (e.g., cisplatin and paclitaxel) to kill lung cancer cells. Firstly, we observed that hederagenin induced the increased autophagosomes in lung cancer cells concomitantly with the upregulation of LC3-II and p62, which indicated the impairment of autophagic flux. The colocalization assay indicated hederagenin could not block the fusion of lysosomes and autophagosomes, whereas the lysosomal acidification might be inhibited by hederagenin as revealed by the reduced staining of acidity-sensitive reagents (i.e., Lysotracker and acridine orange). The aberrant acidic environment then impaired the function of lysosome, which was evidenced by the decrease of mature cathepsin B and cathepsin D. Lastly, hederagenin, in agree with our hypothesis, promoted pro-apoptotic effect of cisplatin and paclitaxel with the accumulation of reactive oxygen species (ROS); while the synergistic effect could be abolished by the ROS scavenger, N-acetyl-L-cysteine. These data summarily demonstrated hederagenin-induced accumulation of ROS by blocking autophagic flux potentiated the cytotoxicity of cisplatin and paclitaxel in lung cancer cells.
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58
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Franklin DA, Sharick JT, Ericsson-Gonzalez PI, Sanchez V, Dean PT, Opalenik SR, Cairo S, Judde JG, Lewis MT, Chang JC, Sanders ME, Cook RS, Skala MC, Bordeaux J, Orozco Bender J, Vaupel C, Geiss G, Hinerfeld D, Balko JM. MEK activation modulates glycolysis and supports suppressive myeloid cells in TNBC. JCI Insight 2020; 5:134290. [PMID: 32634121 PMCID: PMC7455066 DOI: 10.1172/jci.insight.134290] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 07/01/2020] [Indexed: 12/11/2022] Open
Abstract
Triple-negative breast cancers (TNBCs) are heterogeneous and aggressive, with high mortality rates. TNBCs frequently respond to chemotherapy, yet many patients develop chemoresistance. The molecular basis and roles for tumor cell-stromal crosstalk in establishing chemoresistance are complex and largely unclear. Here we report molecular studies of paired TNBC patient-derived xenografts (PDXs) established before and after the development of chemoresistance. Interestingly, the chemoresistant model acquired a distinct KRASQ61R mutation that activates K-Ras. The chemoresistant KRAS-mutant model showed gene expression and proteomic changes indicative of altered tumor cell metabolism. Specifically, KRAS-mutant PDXs exhibited increased redox ratios and decreased activation of AMPK, a protein involved in responding to metabolic homeostasis. Additionally, the chemoresistant model exhibited increased immunosuppression, including expression of CXCL1 and CXCL2, cytokines responsible for recruiting immunosuppressive leukocytes to tumors. Notably, chemoresistant KRAS-mutant tumors harbored increased numbers of granulocytic myeloid-derived suppressor cells (gMDSCs). Interestingly, previously established Ras/MAPK-associated gene expression signatures correlated with myeloid/neutrophil-recruiting CXCL1/2 expression and negatively with T cell-recruiting chemokines (CXCL9/10/11) across patients with TNBC, even in the absence of KRAS mutations. MEK inhibition induced tumor suppression in mice while reversing metabolic and immunosuppressive phenotypes, including chemokine production and gMDSC tumor recruitment in the chemoresistant KRAS-mutant tumors. These results suggest that Ras/MAPK pathway inhibitors may be effective in some breast cancer patients to reverse Ras/MAPK-driven tumor metabolism and immunosuppression, particularly in the setting of chemoresistance.
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Affiliation(s)
- Derek A Franklin
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Joe T Sharick
- Department of Biomedical Engineering, School of Engineering, Vanderbilt University, Nashville, Tennessee, USA.,Morgridge Institute for Research, University of Wisconsin-Madison, Wisconsin, USA
| | | | - Violeta Sanchez
- Breast Cancer Research Program, Vanderbilt-Ingram Cancer Center, Nashville, Tennessee, USA
| | - Phillip T Dean
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Susan R Opalenik
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | | | | | | | - Jenny C Chang
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas, USA
| | - Melinda E Sanders
- Breast Cancer Research Program, Vanderbilt-Ingram Cancer Center, Nashville, Tennessee, USA.,Department of Pathology, Microbiology and Immunology and
| | - Rebecca S Cook
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville Tennessee, USA
| | - Melissa C Skala
- Morgridge Institute for Research, University of Wisconsin-Madison, Wisconsin, USA.,Department of Biomedical Engineering, College of Engineering, University of Wisconsin-Madison, Wisconsin, USA
| | | | | | | | - Gary Geiss
- NanoString Technologies, Seattle, Washington, USA
| | | | - Justin M Balko
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Breast Cancer Research Program, Vanderbilt-Ingram Cancer Center, Nashville, Tennessee, USA
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59
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Yu Z, Xu J, Shao M, Zou J. Germacrone Induces Apoptosis as Well as Protective Autophagy in Human Prostate Cancer Cells. Cancer Manag Res 2020; 12:4009-4016. [PMID: 32547235 PMCID: PMC7264030 DOI: 10.2147/cmar.s250522] [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: 02/19/2020] [Accepted: 05/08/2020] [Indexed: 01/04/2023] Open
Abstract
Background Germacrone, a natural product isolated from the traditional Chinese medicine Rhizoma Curcuma, has been reported to exhibit antitumor activities in vitro. To further understand the antitumor mechanism of germacrone, we investigated the growth inhibitory effect of germacrone on the human prostate cancer cell lines PC-3 (androgen independent) and 22RV1 (androgen dependent). Materials and Methods Prostate cancer cells were cultured with different concentrations of germacrone, and cell viability was measured by MTT assay. The levels of proteins were measured by Western blotting. Cell apoptosis was assessed by flow cytometry. Images of autophagy-related protein staining were captured by fluorescence microscopy. Autophagic flux was assessed by detecting the LC3B-II level. Results Our results indicated that germacrone treatment significantly inhibited cell proliferation by inducing apoptosis in a dose-dependent manner, with IC50 values of 259 μM for PC-3 cells and 396.9 μM for 22RV1 cells. Germacrone-treated cells also exhibited induction of autophagy, as evidenced by elevated LC3B-II protein expression levels and punctuate patterns. Additionally, an autophagy inhibitor enhanced the growth inhibitory effect of germacrone. Moreover, the phosphorylation of Akt and mTOR was inhibited in germacrone-treated prostate cancer cells. Conclusion Germacrone induced apoptosis and autophagy in prostate cancer cells by inhibiting the Akt/mTOR signaling pathway. Germacrone treatment also led to the activation of protective autophagy. These findings suggest that germacrone may potentially contribute to the development of a new therapeutic agent for prostate cancer treatment.
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Affiliation(s)
- Ziqiang Yu
- Department of Urology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei City, Anhui Province 230031, People's Republic of China
| | - Jiuping Xu
- Department of Urology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei City, Anhui Province 230031, People's Republic of China
| | - Mingfeng Shao
- Department of Urology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei City, Anhui Province 230031, People's Republic of China
| | - Jianan Zou
- Department of Urology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei City, Anhui Province 230031, People's Republic of China
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60
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Liu T, Zhang J, Li K, Deng L, Wang H. Combination of an Autophagy Inducer and an Autophagy Inhibitor: A Smarter Strategy Emerging in Cancer Therapy. Front Pharmacol 2020; 11:408. [PMID: 32322202 PMCID: PMC7156970 DOI: 10.3389/fphar.2020.00408] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 03/18/2020] [Indexed: 01/08/2023] Open
Abstract
Autophagy is considered a cytoprotective function in cancer therapy under certain conditions and is a drug resistance mechanism that represents a clinical obstacle to successful cancer treatment and leads to poor prognosis in cancer patients. Because certain clinical drugs and agents in development have cytoprotective autophagy effects, targeting autophagic pathways has emerged as a potential smarter strategy for cancer therapy. Multiple preclinical and clinical studies have demonstrated that autophagy inhibition augments the efficacy of anticancer agents in various cancers. Autophagy inhibitors, such as chloroquine and hydroxychloroquine, have already been clinically approved, promoting drug combination treatment by targeting autophagic pathways as a means of discovering and developing more novel and more effective cancer therapeutic approaches. We summarize current studies that focus on the antitumor efficiency of agents that induce cytoprotective autophagy combined with autophagy inhibitors. Furthermore, we discuss the challenge and development of targeting cytoprotective autophagy as a cancer therapeutic approach in clinical application. Thus, we need to facilitate the exploitation of appropriate autophagy inhibitors and coadministration delivery system to cooperate with anticancer drugs. This review aims to note optimal combination strategies by modulating autophagy for therapeutic advantage to overcome drug resistance and enhance the effect of antitumor therapies on cancer patients.
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Affiliation(s)
- Ting Liu
- The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Zhang
- The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kangdi Li
- College of Life Sciences, Wuhan University, Wuhan, China
| | - Lingnan Deng
- Department of Digestion, The Second Affiliated Hospital of Jiangxi University TCM, Nanchang, China
| | - Hongxiang Wang
- The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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61
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Li K, Li M, Luo Z, Mao Y, Yu Y, He Y, Zhou J, Fei Y, Pei Y, Cai K. Overcoming the hypoxia-induced drug resistance in liver tumor by the concurrent use of apigenin and paclitaxel. Biochem Biophys Res Commun 2020; 526:321-327. [PMID: 32220496 DOI: 10.1016/j.bbrc.2020.03.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 03/01/2020] [Indexed: 01/16/2023]
Abstract
The chemotherapeutic efficacy of paclitaxel against hypoxic tumors is usually unsatisfactory, which is partially due to the so-called hypoxia-induced drug resistance. The mechanism of hypoxia-induced resistance is primarily associated with hypoxia-inducible factor 1α (HIF-1α), which is an oxygen-sensitive transcriptional activator coordinating the cellular response to hypoxia. Apigenin is a natural occurring HIF-1α inhibitor that can suppress the expression of HIF-1α through multiple pathways and reverse the hypoxia-induced resistance found in cancer cells. Here we report that the use of apigenin can suppress the HIF-1α expression in hypoxic tumors through the simultaneous inhibition of the AKT/p-AKT pathway and HSP90, which is beneficial for enhancing the anticancer activity of the co-administered paclitaxel. The potential synergistic effect of apigenin and paclitaxel was further validated on HepG2 cell line and tumor-bearing mouse models.
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Affiliation(s)
- Ke Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Menghuan Li
- School of Life Science, Chongqing University, Chongqing, 401331, China
| | - Zhong Luo
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China; School of Life Science, Chongqing University, Chongqing, 401331, China.
| | - Yulan Mao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Yonglin Yu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Ye He
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Jun Zhou
- School of Life Science, Chongqing University, Chongqing, 401331, China
| | - Yang Fei
- School of Life Science, Chongqing University, Chongqing, 401331, China
| | - Yuxia Pei
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China.
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63
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Li Q, Wang Q, Zhang Q, Zhang J, Zhang J. Collagen prolyl 4-hydroxylase 2 predicts worse prognosis and promotes glycolysis in cervical cancer. Am J Transl Res 2019; 11:6938-6951. [PMID: 31814898 PMCID: PMC6895525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 10/26/2019] [Indexed: 06/10/2023]
Abstract
P4HA2 is one of collagen prolyl 4-hydroxylase (P4H) isoform and increased in several types of human cancer. However, the role of P4HA2 during cervical tumorigenesis remains largely unknown. Here, we report that the protein level of P4HA2 is significantly increased in cervical cancer tissues. Silencing of P4HA2 inhibits cervical cancer cell proliferation, colony formation and migration. We also demonstrate decreased glucose uptake and lactate production in P4HA2 knockdown cells. Mechanistically, P4HA2 promotes cervical cancer cell glycolysis through upregulation of PGK1 and LDHA. We find a positive correlation between P4HA2 and PGK1/LDHA expression in cervical cancer tissues. Importantly, high expression of P4HA2, PGK1 or LDHA has a significantly shorter overall survival period and the survival prediction is enhanced by using combination of P4HA2 and PGK1/LDHA expression. Collectively, we identify P4HA2 as a regulator of glycolysis through PGK1 and LDHA, which may serve as a potential therapeutic target for cervical cancer.
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Affiliation(s)
- Qingxian Li
- Department of Gynaecology and Obstetrics, Putuo Hospital, Shanghai University of Traditional Chinese MedicineShanghai, China
| | - Qingying Wang
- Department of Obstetrics and Gynecology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji UniversityShanghai, China
| | - Qinyi Zhang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiaotong UniversityShanghai, China
| | - Jing Zhang
- Department of Integrated Therapy, Shanghai Cancer Center, Fudan UniversityShanghai, China
- Department of Oncology, Shanghai Medical College, Fudan UniversityShanghai, China
| | - Jiawen Zhang
- Department of Obstetrics and Gynecology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji UniversityShanghai, China
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Ho CJ, Gorski SM. Molecular Mechanisms Underlying Autophagy-Mediated Treatment Resistance in Cancer. Cancers (Basel) 2019; 11:E1775. [PMID: 31717997 PMCID: PMC6896088 DOI: 10.3390/cancers11111775] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/30/2019] [Accepted: 10/31/2019] [Indexed: 12/13/2022] Open
Abstract
Despite advances in diagnostic tools and therapeutic options, treatment resistance remains a challenge for many cancer patients. Recent studies have found evidence that autophagy, a cellular pathway that delivers cytoplasmic components to lysosomes for degradation and recycling, contributes to treatment resistance in different cancer types. A role for autophagy in resistance to chemotherapies and targeted therapies has been described based largely on associations with various signaling pathways, including MAPK and PI3K/AKT signaling. However, our current understanding of the molecular mechanisms underlying the role of autophagy in facilitating treatment resistance remains limited. Here we provide a comprehensive summary of the evidence linking autophagy to major signaling pathways in the context of treatment resistance and tumor progression, and then highlight recently emerged molecular mechanisms underlying autophagy and the p62/KEAP1/NRF2 and FOXO3A/PUMA axes in chemoresistance.
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Affiliation(s)
- Cally J. Ho
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer, Vancouver, BC V5Z 1L3, Canada;
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
| | - Sharon M. Gorski
- Canada’s Michael Smith Genome Sciences Centre, BC Cancer, Vancouver, BC V5Z 1L3, Canada;
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
- Centre for Cell Biology, Development, and Disease, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
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65
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Howarth A, Madureira PA, Lockwood G, Storer LCD, Grundy R, Rahman R, Pilkington GJ, Hill R. Modulating autophagy as a therapeutic strategy for the treatment of paediatric high-grade glioma. Brain Pathol 2019; 29:707-725. [PMID: 31012506 PMCID: PMC8028648 DOI: 10.1111/bpa.12729] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 04/17/2019] [Indexed: 12/18/2022] Open
Abstract
Paediatric high-grade gliomas (pHGG) represent a therapeutically challenging group of tumors. Despite decades of research, there has been minimal improvement in treatment and the clinical prognosis remains poor. Autophagy, a highly conserved process for recycling metabolic substrates is upregulated in pHGG, promoting tumor progression and evading cell death. There is significant crosstalk between autophagy and a plethora of critical cellular pathways, many of which are dysregulated in pHGG. The following article will discuss our current understanding of autophagy signaling in pHGG and the potential modulation of this network as a therapeutic target.
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Affiliation(s)
- Alison Howarth
- Brain Tumour Research Centre, Institute of Biomedical and Biomolecular Sciences, IBBSUniversity of PortsmouthPortsmouthUK
| | - Patricia A. Madureira
- Brain Tumour Research Centre, Institute of Biomedical and Biomolecular Sciences, IBBSUniversity of PortsmouthPortsmouthUK
- Centre for Biomedical Research (CBMR)University of AlgarveFaroPortugal
| | - George Lockwood
- Children’s Brain Tumour Research Centre, School of Medicine, Queen’s Medical CentreUniversity of NottinghamNottinghamUK
| | - Lisa C. D. Storer
- Children’s Brain Tumour Research Centre, School of Medicine, Queen’s Medical CentreUniversity of NottinghamNottinghamUK
| | - Richard Grundy
- Children’s Brain Tumour Research Centre, School of Medicine, Queen’s Medical CentreUniversity of NottinghamNottinghamUK
| | - Ruman Rahman
- Children’s Brain Tumour Research Centre, School of Medicine, Queen’s Medical CentreUniversity of NottinghamNottinghamUK
| | - Geoffrey J. Pilkington
- Brain Tumour Research Centre, Institute of Biomedical and Biomolecular Sciences, IBBSUniversity of PortsmouthPortsmouthUK
| | - Richard Hill
- Brain Tumour Research Centre, Institute of Biomedical and Biomolecular Sciences, IBBSUniversity of PortsmouthPortsmouthUK
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66
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Gomes INF, Silva-Oliveira RJ, Oliveira Silva VA, Rosa MN, Vital PS, Barbosa MCS, Dos Santos FV, Junqueira JGM, Severino VGP, Oliveira BG, Romão W, Reis RM, Ribeiro RIMDA. Annona coriacea Mart. Fractions Promote Cell Cycle Arrest and Inhibit Autophagic Flux in Human Cervical Cancer Cell Lines. Molecules 2019; 24:molecules24213963. [PMID: 31683835 PMCID: PMC6864525 DOI: 10.3390/molecules24213963] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/25/2019] [Accepted: 10/29/2019] [Indexed: 01/30/2023] Open
Abstract
Plant-based compounds are an option to explore and perhaps overcome the limitations of current antitumor treatments. Annona coriacea Mart. is a plant with a broad spectrum of biological activities, but its antitumor activity is still unclear. The purpose of our study was to determine the effects of A. coriacea fractions on a panel of cervical cancer cell lines and a normal keratinocyte cell line. The antitumor effect was investigated in vitro by viability assays, cell cycle, apoptosis, migration, and invasion assays. Intracellular signaling was assessed by Western blot, and major compounds were identified by mass spectrometry. All fractions exhibited a cytotoxic effect on cisplatin-resistant cell lines, SiHa and HeLa. C3 and C5 were significantly more cytotoxic and selective than cisplatin in SiHa and Hela cells. However, in CaSki, a cisplatin-sensitive cell line, the compounds did not demonstrate higher cytotoxicity when compared with cisplatin. Alkaloids and acetogenins were the main compounds identified in the fractions. These fractions also markedly decreased cell proliferation with p21 increase and cell cycle arrest in G2/M. These effects were accompanied by an increase of H2AX phosphorylation levels and DNA damage index. In addition, fractions C3 and C5 promoted p62 accumulation and decrease of LC3II, as well as acid vesicle levels, indicating the inhibition of autophagic flow. These findings suggest that A. coriacea fractions may become effective antineoplastic drugs and highlight the autophagy inhibition properties of these fractions in sensitizing cervical cancer cells to treatment.
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Affiliation(s)
- Izabela N Faria Gomes
- Experimental Pathology Laboratory, Federal University of São João del Rei-CCO/UFSJ, Divinópolis 35501-296, Brazil.
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, Brazil.
| | | | | | - Marcela N Rosa
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, Brazil.
| | - Patrik S Vital
- Experimental Pathology Laboratory, Federal University of São João del Rei-CCO/UFSJ, Divinópolis 35501-296, Brazil.
| | - Maria Cristina S Barbosa
- Laboratory of Cell Biology and Mutagenesis, Federal University of São João del Rei-CCO/UFSJ, Divinópolis 35501-296, Brazil.
| | - Fábio Vieira Dos Santos
- Laboratory of Cell Biology and Mutagenesis, Federal University of São João del Rei-CCO/UFSJ, Divinópolis 35501-296, Brazil.
| | - João Gabriel M Junqueira
- Special Academic Unit of Physics and Chemistry, Federal University of Goiás, Catalão 75704-020, Brazil.
| | - Vanessa G P Severino
- Special Academic Unit of Physics and Chemistry, Federal University of Goiás, Catalão 75704-020, Brazil.
| | - Bruno G Oliveira
- Petroleomic and forensic chemistry laboratory, Department of Chemistry, Federal Institute of Espirito Santo, Vitória, ES 29075-910, Brazil.
| | - Wanderson Romão
- Petroleomic and forensic chemistry laboratory, Department of Chemistry, Federal Institute of Espirito Santo, Vitória, ES 29075-910, Brazil.
| | - Rui Manuel Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, Brazil.
- Life and Health Sciences Research Institute (ICVS), Medical School, University of Minho, 4710-057 Braga, Portugal.
- 3ICVS/3B's-PT Government Associate Laboratory, 4710-057 Braga, Portugal.
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67
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Maheswari U, Ghosh K, Sadras SR. Licarin A induces cell death by activation of autophagy and apoptosis in non-small cell lung cancer cells. Apoptosis 2019; 23:210-225. [PMID: 29468481 DOI: 10.1007/s10495-018-1449-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Lung cancer has a relatively poor prognosis with a low survival rate and drugs that target other cell death mechanism like autophagy may help improving current therapeutic strategy. This study investigated the anti-proliferative effect of Licarin A (LCA) from Myristica fragrans in non-small cell lung cancer cell lines-A549, NCI-H23, NCI-H520 and NCI-H460. LCA inhibited proliferation of all the four cell lines in a dose and time dependent manner with minimum IC50 of 20.03 ± 3.12, 22.19 ± 1.37 µM in NCI-H23 and A549 cells respectively. Hence NCI-H23 and A549 cells were used to assess the ability LCA to induce autophagy and apoptosis. LCA treatment caused G1 arrest, increase in Beclin 1, LC3II levels and degradation of p62 indicating activation of autophagy in both NCI-H23 and A549 cells. In addition, LCA mediated apoptotic cell death was confirmed by MMP loss, increased ROS, cleaved PARP and decreased pro-caspase3. To understand the role of LCA induced autophagy and its association with apoptosis, cells were analysed following treatment with a late autophagy inhibitor-chloroquine and also after Beclin 1 siRNA transfection. Data indicated that inhibition of autophagy resulted in reduced anti-proliferative as well as pro-apoptotic ability of LCA. These findings confirmed that LCA brought about autophagy dependent apoptosis in non-small cell lung cancer cells and hence it may serve as a potential drug candidate for non-small cell lung cancer therapy.
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Affiliation(s)
- Uma Maheswari
- DBT-IPLS Programme, Department of Biochemistry and Molecular Biology, Pondicherry University, Pondicherry, 605014, India
| | - Krishna Ghosh
- Department of Biochemistry and Molecular Biology, Central University of Kerala, Kasaragod, Kerala, 671314, India
| | - Sudha Rani Sadras
- DBT-IPLS Programme, Department of Biochemistry and Molecular Biology, Pondicherry University, Pondicherry, 605014, India.
- Department of Biochemistry and Molecular Biology, School of Life Sciences, Pondicherry University, Pondicherry, 605014, India.
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68
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Liu W, Lo YL, Hsu C, Wu YT, Liao ZX, Wu WJ, Chen YJ, Kao C, Chiu CC, Wang LF. CS-PEI/Beclin-siRNA Downregulate Multidrug Resistance Proteins and Increase Paclitaxel Therapeutic Efficacy against NSCLC. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 17:477-490. [PMID: 31336235 PMCID: PMC6656922 DOI: 10.1016/j.omtn.2019.06.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/16/2019] [Accepted: 06/18/2019] [Indexed: 12/15/2022]
Abstract
Paclitaxel (PTX) is a widely used chemotherapy drug; however, frequent use causes multidrug resistance (MDR), which limits the utility of PTX against advanced non-small-cell lung cancer (NSCLC). PTX-resistant subline (NCI-H23-TXR) was established in vitro by exposing NCI-H23 cells to gradually increased concentrations of PTX in culture medium. Distinct Beclin expression of autophagy level was observed between resistant NCI-H23-TXR and parental NCI-H23 cells. Beclin-small interfering RNA (siRNA) was selected to restore sensitivity of PTX against NCI-H23-TXR. Chondroitin sulfate-polyethylenimine (CS-PEI) was constructed for delivery and protection of Beclin-siRNA. To delineate the underlying molecular mechanism of Beclin knockdown, we analyzed different MDR expression proteins of two cells using western blot, and the corresponding genes were confirmed by real-time PCR. Compared with NCI-H23, NCI-H23-TXR had higher expression levels in P-glycoprotein (P-gp) and multidrug resistance protein 7 (ABCC10). Knockdown of Beclin simultaneously inhibited P-gp and ABCC10, and renewed the sensitivity of PTX against NCI-H23-TXR. Research on zebrafish embryos revealed that tumor sizes decreased in NCI-H23 tumor xenografts but remained intact in NCI-H23-TXR tumor xenografts as zebrafish were treated with 1 μg/mL PTX. In contrast, the tumor sizes decreased in NCI-H23-TXR tumor xenografts with zebrafish pre-transfected with CS-PEI/Beclin-siRNA followed by the same treatment of PTX. The role of autophagy was associated with MDR development. This study paves the way for a new avenue of PTX in MDR-related lung cancer therapy using CS-PEI as a gene delivery carrier.
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Affiliation(s)
- Wangta Liu
- Department of Biotechnology, College of Life Sciences, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Lun Lo
- Department of Medicinal and Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Department of Physiology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chin Hsu
- Department of Physiology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Yi-Ting Wu
- Department of Medicinal and Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Zi-Xian Liao
- Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Wen-Jeng Wu
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yi-Jou Chen
- School of Medicine, Chang Guan University, Taoyuan City 33302, Taiwan
| | - Chieh Kao
- School of Medicine for International Students, I-Shou University, Kaohsiung 82445, Taiwan
| | - Chien-Chih Chiu
- Department of Biotechnology, College of Life Sciences, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
| | - Li-Fang Wang
- Department of Medicinal and Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; Institute of Medical Science and Technology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
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69
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Pillai SR, Damaghi M, Marunaka Y, Spugnini EP, Fais S, Gillies RJ. Causes, consequences, and therapy of tumors acidosis. Cancer Metastasis Rev 2019; 38:205-222. [PMID: 30911978 PMCID: PMC6625890 DOI: 10.1007/s10555-019-09792-7] [Citation(s) in RCA: 183] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
While cancer is commonly described as "a disease of the genes," it is also associated with massive metabolic reprogramming that is now accepted as a disease "Hallmark." This programming is complex and often involves metabolic cooperativity between cancer cells and their surrounding stroma. Indeed, there is emerging clinical evidence that interrupting a cancer's metabolic program can improve patients' outcomes. The most commonly observed and well-studied metabolic adaptation in cancers is the fermentation of glucose to lactic acid, even in the presence of oxygen, also known as "aerobic glycolysis" or the "Warburg Effect." Much has been written about the mechanisms of the Warburg effect, and this remains a topic of great debate. However, herein, we will focus on an important sequela of this metabolic program: the acidification of the tumor microenvironment. Rather than being an epiphenomenon, it is now appreciated that this acidosis is a key player in cancer somatic evolution and progression to malignancy. Adaptation to acidosis induces and selects for malignant behaviors, such as increased invasion and metastasis, chemoresistance, and inhibition of immune surveillance. However, the metabolic reprogramming that occurs during adaptation to acidosis also introduces therapeutic vulnerabilities. Thus, tumor acidosis is a relevant therapeutic target, and we describe herein four approaches to accomplish this: (1) neutralizing acid directly with buffers, (2) targeting metabolic vulnerabilities revealed by acidosis, (3) developing acid-activatable drugs and nanomedicines, and (4) inhibiting metabolic processes responsible for generating acids in the first place.
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Affiliation(s)
- Smitha R Pillai
- Department of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Dr., Tampa, FL, 33602, USA
| | - Mehdi Damaghi
- Department of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Dr., Tampa, FL, 33602, USA
| | - Yoshinori Marunaka
- Research Institute for Clinical Physiology, Kyoto, 604-8472, Japan
- Research Center for Drug Discovery and Pharmaceutical Development Science, Research Organization of Science and Technology, Ritsumeikan University, Kusatsu, 525-8577, Japan
- Department of Molecular Cell Physiology, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | | | - Stefano Fais
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità (National Institute of Health), Viale Regina Elena, 299, 00161, Rome, Italy.
| | - Robert J Gillies
- Department of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Dr., Tampa, FL, 33602, USA.
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70
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Guo J, Chen M, Ai G, Mao W, Li H, Zhou J. Hsa_circ_0023404 enhances cervical cancer metastasis and chemoresistance through VEGFA and autophagy signaling by sponging miR-5047. Biomed Pharmacother 2019; 115:108957. [PMID: 31082770 DOI: 10.1016/j.biopha.2019.108957] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/28/2019] [Accepted: 05/03/2019] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Cervical cancer has been shown to be one of the leading cancer-related death causes all over the world. Several studies demonstrates that hsa_circ_0023404 plays a crucial role in progression of cervical cancer; however, the detailed mechanism of hsa_circ_0023404 regulating cervical cancer metastasis and chemoresistance remains unclear. METHODS We used RT-qPCR and westernblot approach to detect expression levels of various genes in cervical tumors and cancer cells. To examine invasion and lymphatic vessel formation of Human Dermal Lymphatic Endothelial Cells (HDLEC), transwell invasion assay and lymphatic vessel assay were utilized in the presence of conditioned medium of HeLa and SiHa cells. To examine direct interaction between hsa_circ_0023404 and miR-5047, bioinformatic analysis and luciferase reporter assay were used. Besides, MTT and flow cytometry analysis were conducted to assess cell viability and apoptosis rate of HeLa cell. RESULTS hsa_circ_0023404 knockdown attenuates invasion of cervical cancer cells and lymphatic vessel formation of HDLEC cells. hsa_circ_0023404 directly interacted with miR-5047. Moreover, miR-5047 inhibitor-transfected HeLa and SiHa cells enhanced invasion and lymphatic vessel formation of HDLEC cells. More interestingly, we confirmed that hsa_circ_0023404 knockdown and miR-5047 mimic downregulated the expression levels of VEGFA. The functional rescue experiments indicated VEGFA acted as key factor for hsa_circ_0023404- and miR-5047-regulated invasion and lymphatic vessel formaion. Ultimately, hsa_circ_0023404 and VEGFA were upregulated and showed positive correlation in cervical tumors, while miR-5047 was downregulated and showed negative correlation with hsa_circ_0023404 and VEGFA. On the other hand, autophagy-associated genes (Beclin1 and p62) were dysregulated in hsa_circ_0023404 depleted and overexpressed HeLa cells. hsa_circ_0023404 knockdown inhibited cell viability of cells, which was obviously abolished by autophagy inhibitor 3-MA in the presence of various concentrations of Cisplatin. Consistently, apoptosis rate was remarkably elevated in hsa_circ_0023404 depleted cells and diminished in hsa_circ_0023404 overexpressed cells under treatment of 2 μg/ml Cisplatin. CONCLUSIONS Here, we reveal a novel role of hsa_circ_0023404 for cervical cancer metastasis and chemoresistance by regulating miR-5047. Our findings help understand mechanism underlying cervical cancer and development of therapeutical approaches for treating cervical cancer.
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Affiliation(s)
- Jing Guo
- Gynaecology and Obstetrics Department, Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Mengmeng Chen
- Gynaecology and Obstetrics Department, Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Guihai Ai
- Gynaecology and Obstetrics Department, Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Weipu Mao
- Urology Surgery Department, Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Huan Li
- Clinical Medicine Department, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Jianhong Zhou
- Gynaecology and Obstetrics Department, Tenth People's Hospital, Tongji University School of Medicine, Shanghai, PR China.
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Xie Z, Wei Y, Xu J, Lei J, Yu J. Alkaloids from Piper nigrum Synergistically Enhanced the Effect of Paclitaxel against Paclitaxel-Resistant Cervical Cancer Cells through the Downregulation of Mcl-1. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:5159-5168. [PMID: 31006247 DOI: 10.1021/acs.jafc.9b01320] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In the current study, nine amide alkaloids, including two new dimeric amides and a new natural product, were identified from Piper nigrum. Among them, seven compounds sensitized paclitaxel-resistant cervical cancer cells HeLa/PTX to paclitaxel. Piperine was a major component obtained from Piper nigrum, and its sensitization mechanism was investigated. Combination treatment enhanced cell apoptosis, which was mediated by downregulation of phospho-Akt and Mcl-1. Piperine (50 μM) combined with paclitaxel (200 nM) downregulated Mcl-1 protein expression with a decrease of 35.9 ± 9.5% ( P < 0.05). Moreover, overexpression of Mcl-1 attenuated the inhibitory effect of this combination. Furthermore, combination treatments of six dimeric amide alkaloids and paclitaxel all downregulated Mcl-1 protein expression with a decrease ranging from 23.5 ± 9.7% to 41.7 ± 7.2% ( P < 0.05). We reveal, for the first time, that dimeric amide alkaloids from plants possess a remarkable sensitization effect on cancer cells to paclitaxel.
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Affiliation(s)
- Zhoufan Xie
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences , 185 Donghu Road , Wuchang District, Wuhan 430071 , People's Republic of China
| | - Yulu Wei
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences , 185 Donghu Road , Wuchang District, Wuhan 430071 , People's Republic of China
| | - Jie Xu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences , 185 Donghu Road , Wuchang District, Wuhan 430071 , People's Republic of China
| | - Jiachuan Lei
- Renmin Hospital , Wuhan University , Wuhan 430060 , People's Republic of China
| | - Jianqing Yu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Wuhan University School of Pharmaceutical Sciences , 185 Donghu Road , Wuchang District, Wuhan 430071 , People's Republic of China
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Eom SY, Hwang SH, Yeom H, Lee M. An ATG5 knockout promotes paclitaxel resistance in v-Ha-ras-transformed NIH 3T3 cells. Biochem Biophys Res Commun 2019; 513:234-241. [DOI: 10.1016/j.bbrc.2019.03.197] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 03/29/2019] [Indexed: 01/22/2023]
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Abstract
Resistance to therapy is one of the prime causes for treatment failure in cancer and recurrent disease. In recent years, autophagy has emerged as an important cell survival mechanism in response to different stress conditions that are associated with cancer treatment and aging. Autophagy is an evolutionary conserved catabolic process through which damaged cellular contents are degraded after uptake into autophagosomes that subsequently fuse with lysosomes for cargo degradation, thereby alleviating stress. In addition, autophagy serves to maintain cellular homeostasis by enriching nutrient pools. Although autophagy can act as a double-edged sword at the interface of cell survival and cell death, increasing evidence suggest that in the context of cancer therapy-induced stress responses, it predominantly functions as a cell survival mechanism. Here, we provide an up-to-date overview on our current knowledge of the role of pro-survival autophagy in cancer therapy at the preclinical and clinical stages and delineate the molecular mechanisms of autophagy regulation in response to therapy-related stress conditions. A better understanding of the interplay of cancer therapy and autophagy may allow to unveil new targets and avenues for an improved treatment of therapy-resistant tumors in the foreseeable future.
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74
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Deng W, Ma L, Zhang Y, Zhou J, Wang Y, Liu Z, Xue Y. THANATOS: an integrative data resource of proteins and post-translational modifications in the regulation of autophagy. Autophagy 2019; 14:296-310. [PMID: 29157087 DOI: 10.1080/15548627.2017.1402990] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Macroautophagy/autophagy is a highly conserved process for degrading cytoplasmic contents, determines cell survival or death, and regulates the cellular homeostasis. Besides ATG proteins, numerous regulators together with various post-translational modifications (PTMs) are also involved in autophagy. In this work, we collected 4,237 experimentally identified proteins regulated in autophagy and cell death pathways from the literature. Then we computationally identified potential orthologs of known proteins, and developed a comprehensive database of The Autophagy, Necrosis, ApopTosis OrchestratorS (THANATOS, http://thanatos.biocuckoo.org ), containing 191,543 proteins potentially associated with autophagy and cell death pathways in 164 eukaryotes. We performed an evolutionary analysis of ATG genes, and observed that ATGs required for the autophagosome formation are highly conserved across eukaryotes. Further analyses revealed that known cancer genes and drug targets were overrepresented in human autophagy proteins, which were significantly associated in a number of signaling pathways and human diseases. By reconstructing a human kinase-substrate phosphorylation network for ATG proteins, our results confirmed that phosphorylation play a critical role in regulating autophagy. In total, we mapped 65,015 known sites of 11 types of PTMs to collected proteins, and revealed that all types of PTM substrates were enriched in human autophagy. In addition, we observed multiple types of PTM regulators such as protein kinases and ubiquitin E3 ligases or adaptors were significantly associated with human autophagy, and again the results emphasized the importance of PTM regulations in autophagy. We anticipated THANATOS can be a useful resource for further studies.
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Affiliation(s)
- Wankun Deng
- a Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology and the Collaborative Innovation Center for Biomedical Engineering , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
| | - Lili Ma
- a Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology and the Collaborative Innovation Center for Biomedical Engineering , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
| | - Ying Zhang
- a Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology and the Collaborative Innovation Center for Biomedical Engineering , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
| | - Jiaqi Zhou
- a Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology and the Collaborative Innovation Center for Biomedical Engineering , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
| | - Yongbo Wang
- a Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology and the Collaborative Innovation Center for Biomedical Engineering , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
| | - Zexian Liu
- a Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology and the Collaborative Innovation Center for Biomedical Engineering , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China.,b State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine , Sun Yat-sen University Cancer Center , 651 Dongfeng Road East, 510060 , Guangzhou , Guangdong , P. R. China
| | - Yu Xue
- a Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology and the Collaborative Innovation Center for Biomedical Engineering , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
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Datta S, Choudhury D, Das A, Mukherjee DD, Dasgupta M, Bandopadhyay S, Chakrabarti G. Autophagy inhibition with chloroquine reverts paclitaxel resistance and attenuates metastatic potential in human nonsmall lung adenocarcinoma A549 cells via ROS mediated modulation of β-catenin pathway. Apoptosis 2019; 24:414-433. [DOI: 10.1007/s10495-019-01526-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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76
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Deng S, Shanmugam MK, Kumar AP, Yap CT, Sethi G, Bishayee A. Targeting autophagy using natural compounds for cancer prevention and therapy. Cancer 2019; 125:1228-1246. [DOI: 10.1002/cncr.31978] [Citation(s) in RCA: 181] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 11/24/2018] [Accepted: 12/10/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Shuo Deng
- Department of Physiology Yong Loo Lin School of Medicine, National University of Singapore Singapore
| | - Muthu K. Shanmugam
- Department of Pharmacology Yong Loo Lin School of Medicine, National University of Singapore Singapore
| | - Alan Prem Kumar
- Department of Pharmacology Yong Loo Lin School of Medicine, National University of Singapore Singapore
- Cancer Science Institute of Singapore National University of Singapore Singapore
- Cancer Program, Medical Science Cluster Yong Loo Lin School of Medicine, National University of Singapore Singapore
- National University Cancer Institute National University Health System Singapore
- Curtin Medical School, Faculty of Health Sciences Curtin University Perth West Australia Australia
| | - Celestial T. Yap
- Department of Physiology Yong Loo Lin School of Medicine, National University of Singapore Singapore
- National University Cancer Institute National University Health System Singapore
| | - Gautam Sethi
- Department of Pharmacology Yong Loo Lin School of Medicine, National University of Singapore Singapore
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77
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Minassian LM, Cotechini T, Huitema E, Graham CH. Hypoxia-Induced Resistance to Chemotherapy in Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1136:123-139. [PMID: 31201721 DOI: 10.1007/978-3-030-12734-3_9] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A major barrier to the successful management of cancer is the development of resistance to therapy. Chemotherapy resistance can either be an intrinsic property of malignant cells developed prior to therapy, or acquired following exposure to anti-cancer drugs. Given the impact of drug resistance to the overall poor survival of cancer patients, there is an urgent need to better understand the molecular pathways regulating this malignant phenotype. In this chapter we describe some of the molecular pathways that contribute to drug resistance in cancer, the role of a microenvironment deficient in oxygen (hypoxia) in malignant progression, and how hypoxia can be a significant factor in the development of drug resistance. We conclude by proposing potential therapeutic approaches that take advantage of a hypoxic microenvironment to chemosensitize therapy-resistant tumours.
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Affiliation(s)
- Lori M Minassian
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - Tiziana Cotechini
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - Erin Huitema
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - Charles H Graham
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada.
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78
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Su J, Li D, Chen Q, Li M, Su L, Luo T, Liang D, Lai G, Shuai O, Jiao C, Wu Q, Xie Y, Zhou X. Anti-breast Cancer Enhancement of a Polysaccharide From Spore of Ganoderma lucidum With Paclitaxel: Suppression on Tumor Metabolism With Gut Microbiota Reshaping. Front Microbiol 2018; 9:3099. [PMID: 30619178 PMCID: PMC6304348 DOI: 10.3389/fmicb.2018.03099] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 11/30/2018] [Indexed: 12/15/2022] Open
Abstract
Increasing evidence highlights the cardinal role of gut microbiota in tumorigenesis and chemotherapy outcomes. Paclitaxel (PTX), although as a first-line chemotherapy reagent for breast cancer, still requires for improvement on its efficacy and safety due to drug resistance and adverse effects. The present work explored the enhancement of a polysaccharide derived from spore of Ganoderma lucidum (SGP) with PTX in a murine 4T1-breast cancer model. Results showed that the combination of PTX and SGP displayed an improved tumor control, in which mRNA expression of several Warburg effect-related proteins, i.e., glucose transporter 3 (Glut3), lactate dehydrogenase A (Ldha), and pyruvate dehydrogenase kinase (Pdk), and the metabolite profile of tumor was evidently altered. Flowcytometry analysis revealed that the combination treatment recovered the exhausted tumor infiltration lymphocytes (TILs) via inhibiting the expressions of immune checkpoints (PD-1 and Tim-3), while PTX alone evidently increased that of CTLA-4. 16S rRNA sequencing revealed a restoration by the combination treatment on gut microbiota dysbiosis induced by PTX, especially that Bacteroides, Ruminococcus, and other 5 genera were significantly enriched while the cancer-risk genera, Desulfovibrio and Odoribacter, were decreased. Moreover, spearman correlation analysis showed that abundance of Ruminococcus was significantly negative-associated with the amount of frucotose-6-phosphate within the tumor. Collectively, the present study suggests the clinical implication of SGP as an adjuvant candidate for PTX against breast cancer, which possibly relies on the regulation of tumor metabolism and gut microbiota.
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Affiliation(s)
- Jiyan Su
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou, China
| | - Dan Li
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, China
| | - Qianjun Chen
- Department of Breast Disease, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Muxia Li
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, China
| | - Lu Su
- School of Pharmacy and Chemistry, Dali University, Dali, China
| | - Ting Luo
- Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
| | - Danling Liang
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, China
| | - Guoxiao Lai
- Guangdong Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, China.,School of Pharmacy, Guangxi University of Chinese Medicine, Xining, China
| | - Ou Shuai
- Guangdong Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, China
| | - Chunwei Jiao
- Guangdong Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, China
| | - Qingping Wu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou, China
| | - Yizhen Xie
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Institute of Microbiology, Guangzhou, China.,Guangdong Yuewei Edible Fungi Technology Co. Ltd., Guangzhou, China
| | - Xinxin Zhou
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, China
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79
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Zhou G, Shi Y, Wei L, Sun G. Autophagy induction and antiproliferative effect of a novel curcumin derivative MOMI‐1 on the human lung cancer cells A549. J Biochem Mol Toxicol 2018; 33:e22280. [DOI: 10.1002/jbt.22280] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 09/21/2018] [Accepted: 11/08/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Guang‐Zhou Zhou
- Department of Biotechnology, College of Bioengineering, Henan University of TechnologyZhengzhou China
| | - Yan‐Yan Shi
- Department of Biotechnology, College of Bioengineering, Henan University of TechnologyZhengzhou China
| | - Lin‐Lin Wei
- Department of Biotechnology, College of Bioengineering, Henan University of TechnologyZhengzhou China
| | - Gang‐Chun Sun
- Department of Chemistry, College of Chemistry and Chemical Engineering, Henan University of TechnologyZhengzhou China
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80
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Zhou L, Kong Q, Zhang Y, Yang W, Yan S, Li M, Wang Y, Zhou Y, Yu H, Han L. Glucose deprivation promotes apoptotic response to S1 by enhancing autophagy in human cervical cancer cells. Cancer Manag Res 2018; 10:6195-6204. [PMID: 30538566 PMCID: PMC6260140 DOI: 10.2147/cmar.s184180] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background S1 is a novel BH3 mimetic that can induce death in some types of cancer cells, such as melanoma B16, ovarian cancer SKOV3, and U251 glioma cells. S1 inhibits Bcl-2 and Mcl-1 expression and induces cancer cell apoptosis. Cancer cell survival is highly dependent on glucose. Here, we observed the effect of glucose deprivation on the apoptotic response to S1 in human cervical cancer (HeLa) cells. Materials and methods Earle’s balanced salt solution (EBSS) was used to simulate glucose deprivation. MTT assay was used to analyze the cell survival rate, and Hoechst 33342 dye was used to detect the apoptosis in HeLa cells. Western blotting was used to detect the expression of ER stress and autophagy relative proteins. In addition, lysosomes were observed with Lyso-Tracker staining by confocal microscopy. Results S1 decreased cell distribution density and survival rate, and MTT assay showed that EBSS enhanced the inhibitory effects of S1 on HeLa cell growth. Hoechst 33342 dye showed that S1 led to pyknosis, fragmentation, and strong staining in HeLa cell nuclei, and EBSS enhanced these effects. Western blotting indicated that EBSS enhanced the expression of apoptosis-related proteins (cytochrome C, caspase-3, and poly[ADP-ribose] polymerase 1) induced by S1 in HeLa cells. S1 decreased p62 expression and increased the autophagosome-associated protein LC3-II expression, which indicated that S1 induced autophagy in HeLa cells. EBSS enhanced S1-induced autophagy in HeLa cells. Furthermore, autophagy inhibitor chloroquine enhanced S1-induced apoptosis in HeLa cells. Conclusion These results indicate that EBSS exacerbates S1-induced autophagy and severe autophagy induced by EBSS and S1 could lead to apoptosis in HeLa cells. The results also suggest that EBSS enhances the sensitivity of HeLa cells to S1-induced apoptosis and that autophagy plays an important role in this process.
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Affiliation(s)
- Li Zhou
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun 130041, China, .,Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Changchun 130021, China
| | - Qinghuan Kong
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Jilin University, Changchun 130021, China,
| | - Yunhan Zhang
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Jilin University, Changchun 130021, China,
| | - Wei Yang
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun 130021, China
| | - Shan Yan
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Jilin University, Changchun 130021, China,
| | - Meihui Li
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Jilin University, Changchun 130021, China,
| | - Yidan Wang
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Jilin University, Changchun 130021, China,
| | - Yanjie Zhou
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Jilin University, Changchun 130021, China,
| | - Huimei Yu
- Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Jilin University, Changchun 130021, China,
| | - Liying Han
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun 130041, China,
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81
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The Novel Autophagy Inhibitor Alpha-Hederin Promoted Paclitaxel Cytotoxicity by Increasing Reactive Oxygen Species Accumulation in Non-Small Cell Lung Cancer Cells. Int J Mol Sci 2018; 19:ijms19103221. [PMID: 30340379 PMCID: PMC6214018 DOI: 10.3390/ijms19103221] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 10/14/2018] [Accepted: 10/16/2018] [Indexed: 01/07/2023] Open
Abstract
Chemoresistance is a major limiting factor that impairs the outcome of non-small cell lung cancer (NSCLC) chemotherapy. Paclitaxel (Tax) induces protective autophagy in NSCLC cells, leading to the development of drug resistance. We recently identified a new autophagy inhibitor (alpha-hederin) and hypothesized that it may promote the killing effect of Tax on NSCLC cells. We found that alpha-hederin (α-Hed) could block late autophagic flux in NSCLC cells by altering lysosomal pH and inhibiting lysosomal cathepsin D maturation. Combination treatment of α-Hed and Tax synergistically reduced NSCLC cell proliferation and increased NSCLC cell apoptosis compared with treatment with α-Hed or Tax alone. Furthermore, α-Hed plus Tax enhanced the accumulation of intracellular reactive oxygen species (ROS) in NSCLC cells, while the ROS inhibitor N-acetylcysteine reversed the inhibitory effect of the combination treatment. Our findings suggest that α-Hed can increase the killing effect of Tax on NSCLC cells by promoting ROS accumulation, and that combining α-Hed with classical Tax represents a novel strategy for treating NSCLC.
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82
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Li H, Li X, Guo J, Wu G, Dong C, Pang Y, Gao S, Wang Y. Identification of biomarkers and mechanisms of diabetic cardiomyopathy using microarray data. Cardiol J 2018; 27:807-816. [PMID: 30246236 DOI: 10.5603/cj.a2018.0113] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 09/20/2018] [Accepted: 05/03/2017] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND The study aimed to uncover the regulation mechanisms of diabetic cardiomyopathy (DCM) and provide novel prognostic biomarkers. METHODS The dataset GSE62203 downloaded from the Gene Expression Omnibus database was utilized in the present study. After pretreatment using the Affy package, differentially expressed genes (DEGs) were identified by the limma package, followed by functional enrichment analysis and protein- protein interaction (PPI) network analysis. Furthermore, module analysis was conducted using MCODE plug-in of Cytoscape, and functional enrichment analysis was also performed for genes in the modules. RESULTS A set of 560 DEGs were screened, mainly enriched in the metabolic process and cell cycle related process. Hub nodes in the PPI network were LDHA (lactate dehydrogenase A), ALDOC (aldolase C, fructose-bisphosphate) and ABCE1 (ATP Binding Cassette Subfamily E Member 1), which were also highlighted in Module 1 or Module 2 and predominantly enriched in the processes of glycolysis and ribosome biogenesis. Additionally, LDHA were linked with ALDOC in the PPI network. Besides, activating transcription factor 4 (ATF4) was prominent in Module 3; while myosin heavy chain 6 (MYH6) was highlighted in Module 4 and was mainly involved in muscle cells related biological processes. CONCLUSIONS Five potential biomarkers including LDHA, ALDOC, ABCE1, ATF4 and MYH6 were identified for DCM prognosis.
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Affiliation(s)
- Hui Li
- Department of Endocrinology, Shaanxi Provincial People's Hospital
| | - Xiaoyan Li
- Department of Endocrinology, Shaanxi Provincial People's Hospital
| | - Jian Guo
- Department of Endocrinology, Shaanxi Provincial People's Hospital
| | - Guifu Wu
- Department of Endocrinology, Shaanxi Provincial People's Hospital
| | - Chunping Dong
- Department of Endocrinology, Shaanxi Provincial People's Hospital
| | - Yaling Pang
- Department of Endocrinology, Shaanxi Provincial People's Hospital
| | - Shan Gao
- Department of Endocrinology, Shaanxi Provincial People's Hospital
| | - Yangwei Wang
- Department of Endocrinology, Shaanxi Provincial People's Hospital.
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83
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Pucci P, Rescigno P, Sumanasuriya S, de Bono J, Crea F. Hypoxia and Noncoding RNAs in Taxane Resistance. Trends Pharmacol Sci 2018; 39:695-709. [PMID: 29891252 DOI: 10.1016/j.tips.2018.05.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 05/15/2018] [Accepted: 05/17/2018] [Indexed: 12/15/2022]
Abstract
Taxanes are chemotherapeutic drugs employed in the clinic to treat a variety of malignancies. Despite their overall efficacy, cancer cells often display resistance to taxanes. Therefore, new strategies to increase the effectiveness of taxane-based chemotherapeutics are urgently needed. Multiple molecular players are linked to taxane resistance; these include efflux pumps, DNA repair mechanisms, and hypoxia-related pathways. In addition, emerging evidence indicates that both non-coding RNAs and epigenetic effectors might also be implicated in taxane resistance. Here we focus on the causes of taxane resistance, with the aim to envisage an integrated model of the 'taxane resistance phenome'. This model could help the development of novel therapeutic strategies to treat taxane-resistant neoplasms.
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Affiliation(s)
- Perla Pucci
- School of Life Health and Chemical Sciences, The Open University, Milton Keynes, UK
| | - Pasquale Rescigno
- Prostate Cancer Targeted Therapy Group, The Institute of Cancer Research, Sutton, UK; Department of Clinical Medicine, University of Naples 'Federico II', Naples, Italy
| | - Semini Sumanasuriya
- Prostate Cancer Targeted Therapy Group, The Institute of Cancer Research, Sutton, UK
| | - Johann de Bono
- Prostate Cancer Targeted Therapy Group, The Institute of Cancer Research, Sutton, UK
| | - Francesco Crea
- School of Life Health and Chemical Sciences, The Open University, Milton Keynes, UK.
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84
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Hydrogen-Rich Saline Activated Autophagy via HIF-1 α Pathways in Neuropathic Pain Model. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4670834. [PMID: 29888265 PMCID: PMC5985079 DOI: 10.1155/2018/4670834] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 10/04/2017] [Accepted: 10/26/2017] [Indexed: 12/01/2022]
Abstract
Background Neuropathic pain is a chronic and intractable pain, with very few effective analgesics. It involves an impaired cell autophagy process. Hydrogen-rich saline (HRS) reportedly reduces allodynia and hyperalgesia in a neuropathic pain model; however, it is unknown whether these effects involve autophagy induction. Methods We investigated the relationship between HRS and cell autophagy in a neuropathic pain model generated by chronic constriction injury (CCI) in Sprague–Dawley rats. Rats received an intraperitoneal injection of HRS (10 mL/kg daily, from 1 day before until 14 days after CCI), 3MA (autophagy inhibitor), 2ME2 (HIF-1α inhibitor), or EDHB (HIF-1α agonist). The mechanical withdrawal threshold (MWT) and thermal withdrawal latency (TWL) were tested 1 day before and 1, 3, 7, 10, and 14 days after the operation. HIF-1α and cell autophagy markers in the spinal cord were evaluated by western blotting and real-time PCR assays at 14 days after CCI. Autophagosomes with double membranes were identified by transmission electron microscopy. Results CCI caused behavioral hypersensitivity to mechanical and thermal stimulation in the hind-paw of the injured side. HRS improved MWT and TWL, activated autophagy, and increased autophagosomes and autolysosomes in CCI rats. 3-MA aggravated hyperalgesia and allodynia and suppressed autophagy, while EDHB attenuated hyperalgesia and activated the autophagy procedure and the HIF-1α downstream target gene BNIP3. HIF-1α inhibitors reversed the regulatory effects of HRS on autophagy in CCI rats at 14 days after spinal cord injury. Conclusion HRS reduced mechanical hyperalgesia and activation of cell autophagy in neuropathic pain through a HIF1-dependent pathway.
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85
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Feng Y, Liu J, Guo W, Guan Y, Xu H, Guo Q, Song X, Yi F, Liu T, Zhang W, Dong X, Cao LL, O'Rourke BP, Cao L. Atg7 inhibits Warburg effect by suppressing PKM2 phosphorylation resulting reduced epithelial-mesenchymal transition. Int J Biol Sci 2018; 14:775-783. [PMID: 29910687 PMCID: PMC6001680 DOI: 10.7150/ijbs.26077] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 04/16/2018] [Indexed: 12/26/2022] Open
Abstract
Metabolic reprogramming is a distinct hallmark in tumorigenesis. Autophagy can rewire cell metabolism by regulating intracellular homeostasis. Warburg effect is a specific energy metabolic process that allows tumor cells to metabolize glucose via glycolysis into lactate even in the presence of oxygen. Although both autophagy and Warburg effect are involved in the stress response to energy crisis in tumor cells, their molecular relationship has remained largely elusive. We found that Atg7, a key molecule involved in autophagy, inhibits the Warburg effect. Mechanistically, Atg7 binds PKM2 and prevents its Tyr-105 phosphorylation by FGFR1. Furthermore, the hyperphosphorylation of PKM2 and its induced Warburg effect due to Atg7 deficiency promote epithelial-mesenchymal transition (EMT). Conversely, overexpression of Atg7 inhibits PKM2 phosphorylation and the Warburg effect, thereby inhibiting EMT of tumor cells. Our work reveals a molecular link between Atg7 and the Warburg effect, which may provide insight into novel strategies for cancer treatment.
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Affiliation(s)
- Yanling Feng
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Jingwei Liu
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Wendong Guo
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Yi Guan
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Hongde Xu
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Qiqiang Guo
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Xiaoyu Song
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Fei Yi
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Ting Liu
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Wenyu Zhang
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Xiang Dong
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Longyue L. Cao
- Wilf Family Cardiovascular Research Institute, Department of Medicine (Cardiology), Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Brian P. O'Rourke
- Department of Physiology and Biophysics, Albert Einstein College of Medicine, Bronx, New York 10461, USA
| | - Liu Cao
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
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86
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Wang P, Zhu L, Sun D, Gan F, Gao S, Yin Y, Chen L. Natural products as modulator of autophagy with potential clinical prospects. Apoptosis 2018; 22:325-356. [PMID: 27988811 DOI: 10.1007/s10495-016-1335-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Natural compounds derived from living organisms are well defined for their remarkable biological and pharmacological properties likely to be translated into clinical use. Therefore, delving into the mechanisms by which natural compounds protect against diverse diseases may be of great therapeutic benefits for medical practice. Autophagy, an intricate lysosome-dependent digestion process, with implications in a wide variety of pathophysiological settings, has attracted extensive attention over the past few decades. Hitherto, accumulating evidence has revealed that a large number of natural products are involved in autophagy modulation, either inducing or inhibiting autophagy, through multiple signaling pathways and transcriptional regulators. In this review, we summarize natural compounds regulating autophagy in multifarious diseases including cancer, neurodegenerative diseases, cardiovascular diseases, metabolic diseases, and immune diseases, hoping to inspire further investigation of the underlying mechanisms of natural compounds and to facilitate their clinical use for multiple human diseases.
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Affiliation(s)
- Peiqi Wang
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Lingjuan Zhu
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Dejuan Sun
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Feihong Gan
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Suyu Gao
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yuanyuan Yin
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Lixia Chen
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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87
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Moosavi MA, Haghi A, Rahmati M, Taniguchi H, Mocan A, Echeverría J, Gupta VK, Tzvetkov NT, Atanasov AG. Phytochemicals as potent modulators of autophagy for cancer therapy. Cancer Lett 2018; 424:46-69. [PMID: 29474859 DOI: 10.1016/j.canlet.2018.02.030] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 02/18/2018] [Accepted: 02/19/2018] [Indexed: 02/07/2023]
Abstract
The dysregulation of autophagy is involved in the pathogenesis of a broad range of diseases, and accordingly universal research efforts have focused on exploring novel compounds with autophagy-modulating properties. While a number of synthetic autophagy modulators have been identified as promising cancer therapy candidates, autophagy-modulating phytochemicals have also attracted attention as potential treatments with minimal side effects. In this review, we firstly highlight the importance of autophagy and its relevance in the pathogenesis and treatment of cancer. Subsequently, we present the data on common phytochemicals and their mechanism of action as autophagy modulators. Finally, we discuss the challenges associated with harnessing the autophagic potential of phytochemicals for cancer therapy.
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Affiliation(s)
- Mohammad Amin Moosavi
- Department of Molecular Medicine, National Institute of Genetic Engineering and Biotechnology, P.O Box:14965/161, Tehran, Iran.
| | - Atousa Haghi
- Young Researchers & Elite Club, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Marveh Rahmati
- Cancer Biology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hiroaki Taniguchi
- Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, 05-552 Jastrzebiec, Poland
| | - Andrei Mocan
- Department of Pharmaceutical Botany, "Iuliu Haţieganu" University of Medicine and Pharmacy, Gheorghe Marinescu 23 Street, 400337 Cluj-Napoca, Romania
| | - Javier Echeverría
- Facultad de Química y Biología, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago 9170022, Chile
| | - Vijai K Gupta
- Department of Chemistry and Biotechnology, ERA Chair of Green Chemistry, Tallinn University of Technology, 12618 Tallinn, Estonia
| | - Nikolay T Tzvetkov
- Pharmaceutical Institute, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany; NTZ Lab Ltd., Krasno Selo 198, Sofia 1618, Bulgaria
| | - Atanas G Atanasov
- Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, 05-552 Jastrzebiec, Poland; Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria.
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88
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D'Alessio A, Proietti G, Lama G, Biamonte F, Lauriola L, Moscato U, Vescovi A, Mangiola A, Angelucci C, Sica G. Analysis of angiogenesis related factors in glioblastoma, peritumoral tissue and their derived cancer stem cells. Oncotarget 2018; 7:78541-78556. [PMID: 27705944 PMCID: PMC5346658 DOI: 10.18632/oncotarget.12398] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 09/25/2016] [Indexed: 01/05/2023] Open
Abstract
The formation of new blood vessels represents a crucial event under both physiological and pathological circumstances. In this study, we evaluated by immunohistochemistry, and/or Western blotting and/or quantitative real time-PCR the expression of HIF1α, HIF2α, VEGF, VEGFR1 and VEGFR2 in surgical glioblastoma multiforme (GBM) and peritumoral tissue samples obtained from 50 patients as well as in cancer stem cells (CSCs) isolated from GBM (GCSCs) and peritumoral tissue (PCSCs) of 5 patients. We also investigated the contribution of both GCSCs and PCSCs on the behavior of endothelial cells (ECs) in vitro. Immunohistochemistry demonstrated the expression of angiogenesis markers in both GBM and peritumoral tissue. In addition, in vitro tube formation assay indicated that both GCSCs and PCSCs stimulate EC proliferation as well as tube-like vessel formation. An increased migration aptitude was mainly observed when ECs were cultured in the presence of GCSCs rather than in the presence of PCSCs. These findings suggest that relevant neoangiogenetic events may occur in GBM. In particular, VEGF/VEGFR co-expression in PCSCs leads to hypothesize the involvement of an autocrine signaling. Moreover, our results suggest that both GCSCs and PCSCs own the skill of activating the "angiogenic switch" and the capability of modulating EC behavior, indicating that both cell types are either responsive to angiogenic stimuli or able to trigger angiogenic response. Together with our previous findings, this study adds a further piece to the challenging puzzle of the characterization of peritumoral tissue and of the definition of its real role in GBM pathophysiology.
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Affiliation(s)
- Alessio D'Alessio
- Institute of Histology and Embryology, "A. Gemelli" Faculty of Medicine, Catholic University of the Sacred Heart, Rome, Italy
| | - Gabriella Proietti
- Institute of Histology and Embryology, "A. Gemelli" Faculty of Medicine, Catholic University of the Sacred Heart, Rome, Italy
| | - Gina Lama
- Institute of Histology and Embryology, "A. Gemelli" Faculty of Medicine, Catholic University of the Sacred Heart, Rome, Italy
| | - Filippo Biamonte
- Institute of Histology and Embryology, "A. Gemelli" Faculty of Medicine, Catholic University of the Sacred Heart, Rome, Italy
| | - Libero Lauriola
- Institute of Pathology, "A. Gemelli" Faculty of Medicine, Catholic University of the Sacred Heart, Rome, Italy
| | - Umberto Moscato
- Institute of Public Health, Hygiene Division,"A. Gemelli" Faculty of Medicine, Catholic University of the Sacred Heart, Rome, Italy
| | - Angelo Vescovi
- IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | | | - Cristiana Angelucci
- Institute of Histology and Embryology, "A. Gemelli" Faculty of Medicine, Catholic University of the Sacred Heart, Rome, Italy
| | - Gigliola Sica
- Institute of Histology and Embryology, "A. Gemelli" Faculty of Medicine, Catholic University of the Sacred Heart, Rome, Italy
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89
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Yan D, Zhu D, Zhao X, Su J. SHP-2 restricts apoptosis induced by chemotherapeutic agents via Parkin-dependent autophagy in cervical cancer. Cancer Cell Int 2018; 18:8. [PMID: 29371831 PMCID: PMC5769549 DOI: 10.1186/s12935-018-0505-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 01/10/2018] [Indexed: 01/22/2023] Open
Abstract
Background Autophagy is a cell degradation pathway that eliminates damaged or unwanted proteins and organelles. Autophagy protects cells from chemotherapeutic agents by scavenging damaged mitochondria. Methods Plasmid transfection and shRNA were used to regulate SHP-2 expression. Annexin V/PI staining were employed to analysis apoptosis. Flow cytometry was used to analyse intracellular calcium level and ROS. Immunofluorescence was used to detect mitochondria membrane potential, autophagy and Parkin translocation. Results In cervical cancer, we found that SHP-2 suppressed apoptosis induced by Oxaliplatin and 5-FU. Further studies have found that SHP-2 protects against mitochondrial damage. This role of SHP-2 is associated with the activation of autophagy. In addition, SHP-2 degraded impaired mitochondria dependent on the ubiquitin ligase function of Parkin. Conclusions These results suggest that SHP-2 inhibits the apoptosis induced by chemotherapeutic drugs through activating autophagy to degrade damaged mitochondria and ubiquitin ligase Parkin involved in SHP-2 induced autophagy.
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Affiliation(s)
- Dewen Yan
- Department of Obstetrics and Gynecology, Taizhou First People's Hospital, Hengjie Road, No 218, Huangyan, Taizhou, 318020 Zhejiang China
| | - Danyang Zhu
- Department of Obstetrics and Gynecology, Taizhou First People's Hospital, Hengjie Road, No 218, Huangyan, Taizhou, 318020 Zhejiang China
| | - Xiumin Zhao
- Department of Obstetrics and Gynecology, Taizhou First People's Hospital, Hengjie Road, No 218, Huangyan, Taizhou, 318020 Zhejiang China
| | - Jun Su
- Department of Obstetrics and Gynecology, Taizhou First People's Hospital, Hengjie Road, No 218, Huangyan, Taizhou, 318020 Zhejiang China
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90
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Cai Y, Cai J, Ma Q, Xu Y, Zou J, Xu L, Wang D, Guo X. Chloroquine affects autophagy to achieve an anticancer effect in EC109 esophageal carcinoma cells in vitro. Oncol Lett 2017; 15:1143-1148. [PMID: 29422973 DOI: 10.3892/ol.2017.7415] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 10/13/2017] [Indexed: 12/31/2022] Open
Abstract
Esophageal carcinoma is a malignancy that severely threatens human health, with a high incidence rate and a low 5-year survival rate. Resistance to chemotherapy frequently emerges during its treatment, partly due to the induction of autophagy. Therefore, targeting autophagy may be a promising therapeutic approach for the treatment of esophageal carcinoma. In the present study, it was investigated how chloroquine (CQ) can influence the growth ability and biological behaviors of EC109 esophageal squamous carcinoma cells in vitro, as well as the potential molecular mechanisms behind its activity. It was demonstrated that CQ could suppress the growth and proliferation of EC109 cells in a time- and dose-dependent manner; migration and colony formation abilities were also inhibited by CQ. Furthermore, subsequent to the exposure to CQ, the number of autophagosomes was clearly increased in EC109 cells overexpressing green fluorescent protein tagged-light chain (LC)3 when observed by fluorescence microscopy. Protein expression of the endogenous autophagy markers LC3-II and p62 was elevated subsequent to CQ treatment, whereas the expression of proteins from the protein kinase B/mechanistic target of rapamycin target of rapamycin pathway was inhibited. This suggested that CQ could induce the formation of autophagosomes in the initiation of autophagy, but inhibit the degradation of autophagosomes in a later stage of autophagy. The overall effect was that autophagic cell death was activated by CQ, as confirmed by flow cytometry. Overall, the anticancer effect of chloroquine on EC109 was revealed to be mediated through modulating autophagy, and this may produce promising therapeutic benefits for esophageal carcinoma.
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Affiliation(s)
- Yan Cai
- Department of Laboratory Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Translational Medicine Research Center, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Jiajing Cai
- Department of Laboratory Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Department of Laboratory Medicine, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Qiang Ma
- Department of Laboratory Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Department of Laboratory Medicine, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Yuan Xu
- Department of Laboratory Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Jiang Zou
- Department of Laboratory Medicine, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Lei Xu
- Translational Medicine Research Center, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Dongsheng Wang
- Department of Laboratory Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Translational Medicine Research Center, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Xiaolan Guo
- Department of Laboratory Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Translational Medicine Research Center, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China.,Department of Laboratory Medicine, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
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91
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Ling Z, Liu D, Zhang G, Liang Q, Xiang P, Xu Y, Han C, Tao T. miR-361-5p modulates metabolism and autophagy via the Sp1-mediated regulation of PKM2 in prostate cancer. Oncol Rep 2017; 38:1621-1628. [PMID: 29094170 DOI: 10.3892/or.2017.5852] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 07/05/2017] [Indexed: 11/06/2022] Open
Abstract
Prostate cancer (PCa) is a leading cause of death among men. The dysregulation of metabolism and autophagy contributes to the progression of PCa. The transcription factor specificity protein 1 (Sp1) is implicated in the regulation of metabolism and autophagy. We confirmed that Sp1 is overexpressed in castration-resistant prostate cancer (CRPC) cells. However, the roles of Sp1 in PCa metabolism and autophagy remain unclear. Thus, in the present study, we retrieved the GSE35988 dataset from Gene Expression Omnibus (GEO) database to reinvestigate Sp1 expression and its role in PCa.We found that in PCa, Sp1 knockdown significantly inhibited cell growth, aerobic glycolysis, and hypoxia-induced autophagy, which were accompanied by an increased G1 cell cycle arrest. Pearson correlation indicated that pyruvate kinase isoenzyme type M2 (PKM2) is positively correlated with Sp1 expression. Western blot analysis demonstrated that Sp1 directly regulates PKM2; therefore, Sp1 modulates metabolism and autophagy in CRPC. Western blot analysis and luciferase reporter assay also indicated that the tumor suppressor miR-361-5p inversely regulates Sp1 by directly targeting the binding site in the 3'UTR of Sp1. miR-361-5p overexpression presented effects that are similar to Sp1 depletion in PCa. In summary, this study is the first to demonstrate that miR-361-5p suppresses the Sp1/PKM2 axis, consequently affecting the progression of PCa and the metabolism and autophagy of PCa cells. Therefore, targeting the miR-361-5p/Sp1/PKM2 pathway has considerable clinical significance in preventing the malignant progression of PCa.
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Affiliation(s)
- Zhixin Ling
- Department of Urology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | - Dachuang Liu
- Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Guangyuan Zhang
- Department of Urology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu 210009, P.R. China
| | - Qing Liang
- Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Ping Xiang
- Department of Urology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui 230001, P.R. China
| | - Yan Xu
- Department of Urology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui 230001, P.R. China
| | - Conghui Han
- Department of Urology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Tao Tao
- Department of Urology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui 230001, P.R. China
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92
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Jung HJ, Kang JH, Choi S, Son YK, Lee KR, Seong JK, Kim SY, Oh SH. Pharbitis Nil (PN) induces apoptosis and autophagy in lung cancer cells and autophagy inhibition enhances PN-induced apoptosis. JOURNAL OF ETHNOPHARMACOLOGY 2017; 208:253-263. [PMID: 28729229 DOI: 10.1016/j.jep.2017.07.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/10/2017] [Accepted: 07/15/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Pharbitis Nil (PN) is used as a main component of the existing drug, DA-9701, which was developed to treat functional dyspepsia (FD) in Korea. PN extracts isolated from its seeds have been reported to have anticancer effects. AIM OF THE STUDY The purpose of this study was to investigate the underlying mechanism of the chemotherapeutic effects of PN in lung cancer cells. MATERIALS AND METHODS We performed MTT assays, colony formation assays, flow cytometry assays, Western blot analysis, reverse transcription-polymerase chain reaction (RT-PCR), immunofluorescence analysis, and cell counting assays to study the molecular mechanism of chemotherapeutic effects of PN in lung cancer cells. RESULTS Our results indicate that PN induced autophagy as well as apoptosis. PN inhibited cell proliferation and survival by inducing apoptosis in several lung cancer cell lines. PN-treated cells also exhibited induction of autophagy, as evidenced by increased protein expression levels and punctuate patterns of LC3 II. Moreover, activation of extracellular signal-regulated kinases 1 and 2 (ERK1/2), which plays an important role in autophagy activation, was shown to be related with PN-induced autophagy. Interestingly, pharmacological blockade of autophagy activation with wortmannin and inhibition of ERK1/2 phosphorylation by U0126 markedly enhanced PN-induced apoptosis and reduced cell viability, suggesting that autophagy induced by PN may have a cytoprotective effect by suppressing apoptosis. PN- induced apoptosis was regulated by signal transducer and activator of transcription 3 (STAT3) deactivation. Moreover, decrease of STAT3 activation in PN-treated cells was associated with reduced survivin expression, further demonstrating that PN-induced apoptosis was regulated by STAT3 deactivation. CONCLUSION We believe that PN, which is already proven to treat human patients with FD, might be a potential anticancer drug for human lung cancer. In addition, our data suggest that the combination of PN treatment with an autophagy inhibitor or traditional anticancer agents may be an effective anticancer therapy.
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Affiliation(s)
- Hyun Jin Jung
- Korea Mouse Phenotyping Center, College of Veterinary Medicine, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Ju-Hee Kang
- College of Pharmacy, Gachon University, 191, Hambangmoe-ro, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Seungho Choi
- College of Veterinary Medicine, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Youn Kyoung Son
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon 22689, Republic of Korea
| | - Kang Ro Lee
- Natural Products Laboratory, School of Pharmacy, Sungkyunkwan University, Suwon 16419-16, Republic of Korea
| | - Je Kyung Seong
- Korea Mouse Phenotyping Center, College of Veterinary Medicine, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sun Yeou Kim
- College of Pharmacy, Gachon University, 191, Hambangmoe-ro, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Seung Hyun Oh
- College of Pharmacy, Gachon University, 191, Hambangmoe-ro, Yeonsu-gu, Incheon 21936, Republic of Korea.
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93
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Mier-Giraldo H, Díaz-Barrera LE, Delgado-Murcia LG, Valero-Valdivieso MF, Cáez-Ramírez G. Cytotoxic and Immunomodulatory Potential Activity of Physalis peruviana Fruit Extracts on Cervical Cancer (HeLa) and Fibroblast (L929) Cells. J Evid Based Complementary Altern Med 2017; 22:777-787. [PMID: 28719984 PMCID: PMC5871299 DOI: 10.1177/2156587217718751] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
It was purposed to evaluate the biological potential of ethanol and isopropanol crude
extracts of ripe Physalis peruviana fruits. Cytotoxic and
immunomodulatory effects of the expression of interleukin-6, interleukin-8, and monocyte
chemoattractant protein-1 (MCP-1) were evaluated on human cervical cancer (HeLa) and
murine fibroblast (L929) cells. The composition was evaluated by high-performance liquid
chromatography diode-array detection and high-performance liquid chromatography
ultraviolet/visible detection. The presence of ursolic acid and rosmarinic acid was found
in both solvents. However, gallic acid, quercetin, and epicatechin were higher in
isopropanol extracts (P < .05). The results indicated a relationship
among the total polyphenol content, antioxidant activity, and cytotoxic activity that was
dependent on the solvent used. Isopropanol extracts presented a half-maximal inhibition
concentration value (IC50) of 60.48 ± 3.8 μg/mL for HeLa cells and 66.62 ± 2.67
μg/mL for L929 fibroblasts. The extracts reduced the release of interleukin-6,
interleukin-8, and MCP-1 in a dose-dependent manner. Extracts showed anticancer and
immunomodulatory potential for new complementary pharmaceutical products development.
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Affiliation(s)
- Helen Mier-Giraldo
- 1 Universidad de La Sabana, Campus Puente del Común, Cundinamarca, Colombia
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94
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Law BYK, Mok SWF, Chen J, Michelangeli F, Jiang ZH, Han Y, Qu YQ, Qiu ACL, Xu SW, Xue WW, Yao XJ, Gao JY, Javed MUH, Coghi P, Liu L, Wong VKW. N-Desmethyldauricine Induces Autophagic Cell Death in Apoptosis-Defective Cells via Ca 2+ Mobilization. Front Pharmacol 2017; 8:388. [PMID: 28670281 PMCID: PMC5472688 DOI: 10.3389/fphar.2017.00388] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 06/02/2017] [Indexed: 12/19/2022] Open
Abstract
Resistance of cancer cells to chemotherapy remains a significant problem in oncology. Mechanisms regulating programmed cell death, including apoptosis, autophagy or necrosis, in the treatment of cancers have been extensively investigated over the last few decades. Autophagy is now emerging as an important pathway in regulating cell death or survival in cancer therapy. Recent studies demonstrated variety of natural small-molecules could induce autophagic cell death in apoptosis-resistant cancer cells, therefore, discovery of novel autophagic enhancers from natural products could be a promising strategy for treatment of chemotherapy-resistant cancer. By computational virtual docking analysis, biochemical assays, and advanced live-cell imaging techniques, we have identified N-desmethyldauricine (LP-4), isolated from rhizoma of Menispermum dauricum DC as a novel inducer of autophagy. LP-4 was shown to induce autophagy via the Ulk-1-PERK and Ca2+/Calmodulin-dependent protein kinase kinase β (CaMKKβ)-AMPK-mTOR signaling cascades, via mobilizing calcium release through inhibition of SERCA, and importantly, lead to autophagic cell death in a panel of cancer cells, apoptosis-defective and apoptosis-resistant cells. Taken together, this study provides detailed insights into the cytotoxic mechanism of a novel autophagic compound that targeting the apoptosis resistant cancer cells, and new implication on drug discovery from natural products for drug resistant cancer therapy.
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Affiliation(s)
- Betty Y K Law
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and TechnologyMacau, China
| | - Simon W F Mok
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and TechnologyMacau, China
| | - Juan Chen
- The Key Laboratory of Molecular Biology on Infectious Diseases, Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing Medical UniversityChongqing, China
| | | | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and TechnologyMacau, China
| | - Yu Han
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and TechnologyMacau, China
| | - Yuan Q Qu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and TechnologyMacau, China
| | - Alena C L Qiu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and TechnologyMacau, China
| | - Su-Wei Xu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and TechnologyMacau, China
| | - Wei-Wei Xue
- College of Chemistry and Chemical Engineering, Lanzhou UniversityLanzhou, China
| | - Xiao-Jun Yao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and TechnologyMacau, China.,College of Chemistry and Chemical Engineering, Lanzhou UniversityLanzhou, China
| | - Jia Y Gao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and TechnologyMacau, China
| | - Masood-Ul-Hassan Javed
- College of Medicine, King Saud Bin Abdulaziz University for Health SciencesJeddah, Saudi Arabia
| | - Paolo Coghi
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and TechnologyMacau, China
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and TechnologyMacau, China
| | - Vincent K W Wong
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and TechnologyMacau, China
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95
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Xu Y, Chu L, Yuan S, Yang Y, Yang Y, Xu B, Zhang K, Liu XY, Wang R, Fang L, Chen Z, Liang Z. RGD-modified oncolytic adenovirus-harboring shPKM2 exhibits a potent cytotoxic effect in pancreatic cancer via autophagy inhibition and apoptosis promotion. Cell Death Dis 2017; 8:e2835. [PMID: 28569774 PMCID: PMC5520890 DOI: 10.1038/cddis.2017.230] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 03/24/2017] [Accepted: 03/27/2017] [Indexed: 02/06/2023]
Abstract
The M2 isoform of pyruvate kinase (PKM2) is a key driver of glycolysis in cancer cells and has critical 'non-metabolic' functions in some cancers; however, the role of PKM2 in pancreatic cancer remains unclear. The aim of the current study was to elucidate the role of PKM2 in pancreatic cancer progression and the potential of PKM2 as a therapeutic target. In this study, we observed that PKM2 is highly expressed in patients with pancreatic cancer and is correlated to survival. Elevated PKM2 expression promoted cell proliferation, migration and tumor formation. The inhibition of cell growth by silencing PKM2 is caused by impairment of the autophagy process. To test the potential effects of downregulating PKM2 as a clinical therapy, we constructed an RGD-modified oncolytic adenovirus containing shPKM2 (OAd.R.shPKM2) to knock down PKM2 in pancreatic cancer cells. Cells transduced with OAd.R.shPKM2 exhibited decreased cell viability, and, in a PANC-1 xenograft model, intratumoral injection of OAd.R.shPKM2 resulted in reduced tumor growth. Furthermore, OAd.R.shPKM2 induced apoptosis and impaired autophagy in PANC-1 cells. Our results suggested that targeting PKM2 with an oncolytic adenovirus produced a strong antitumor effect, and that this strategy could broaden the therapeutic options for treating pancreatic cancer.
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Affiliation(s)
- Yanni Xu
- College of Life Sciences, Northwest Agriculture and Forestry University, Yangling 712100, PR China
| | - Liang Chu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, PR China
| | - Sujing Yuan
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Science, University of Chinese Academy of Science, Shanghai 200031, PR China
| | - Yuanqin Yang
- Xinyuan Institute of Medicine and Biotechnology, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Yu Yang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Science, University of Chinese Academy of Science, Shanghai 200031, PR China
| | - Bin Xu
- Department of General Surgery, Shanghai 10th People’s Hospital, Tongji University School of Medicine, Shanghai 200072, PR China
| | - Kangjian Zhang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Science, University of Chinese Academy of Science, Shanghai 200031, PR China
| | - Xin-Yuan Liu
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Science, University of Chinese Academy of Science, Shanghai 200031, PR China
- Xinyuan Institute of Medicine and Biotechnology, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Ruwei Wang
- Xinyuan Institute of Medicine and Biotechnology, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
- Zhejiang Conba Pharmaceutical Co., Ltd, Hangzhou 310018, PR China
| | - Ling Fang
- Xinyuan Institute of Medicine and Biotechnology, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
- Zhejiang Conba Pharmaceutical Co., Ltd, Hangzhou 310018, PR China
| | - Zhinan Chen
- Department of Cell Biology, State Key Laboratory of Cancer Biology, Cell Engineering Research Center, Fourth Military Medical University, Xi’an 710032, PR China
| | - Zongsuo Liang
- College of Life Sciences, Northwest Agriculture and Forestry University, Yangling 712100, PR China
- Xinyuan Institute of Medicine and Biotechnology, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
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Shi X, Dou Y, Zhou K, Huo J, Yang T, Qin T, Liu W, Wang S, Yang D, Chang L, Wang C. Targeting the Bcl-2 family and P-glycoprotein reverses paclitaxel resistance in human esophageal carcinoma cell line. Biomed Pharmacother 2017; 90:897-905. [DOI: 10.1016/j.biopha.2017.04.043] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/29/2017] [Accepted: 04/10/2017] [Indexed: 12/22/2022] Open
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97
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miR-30a-5p enhances paclitaxel sensitivity in non-small cell lung cancer through targeting BCL-2 expression. J Mol Med (Berl) 2017; 95:861-871. [PMID: 28487996 DOI: 10.1007/s00109-017-1539-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 04/20/2017] [Accepted: 04/27/2017] [Indexed: 12/13/2022]
Abstract
Lung cancer remains the leading cause of cancer-related death worldwide. Paclitaxel, either as monotherapy or combined with other agents, is the standard treatment for advanced non-small cell lung cancer (NSCLC), the most common type of lung cancer. However, both de novo and acquired resistance against paclitaxel frequently occurs and represents a huge clinical problem. The underlying mechanisms remain poorly characterized. Here, by comparing microRNA (miRNA) expression levels using miRNA arrays, we observed differential expression of miR-30a-5p in two independent lung cancer cell pairs (paclitaxel-resistant vs paclitaxel-sensitive A549 cell lines). Overexpression of miR-30a-5p sensitizes NSCLC cells to paclitaxel both in vitro and in vivo. In addition, miR-30a-5p increases paclitaxel sensitivity by promoting chemotherapy-induced apoptosis via downregulating BCL-2, a key apoptosis regulator. High miR-30a-5p expression is positively correlated with enhanced responsiveness to paclitaxel and predicts a more favorable clinical outcome in NSCLC patients. Moreover, miR-30a-5p expression is negatively correlated with BCL-2 expression in NSCLC tissues. These data indicate that miR-30a-5p may be useful to treat paclitaxel-resistant lung cancer and may also provide a biomarker to predict paclitaxel responsiveness in lung cancer. KEY MESSAGES BCL-2 is a novel direct target of miR-30a-5p. miR-30a-5p enhances NSCLC paclitaxel sensitivity in vitro and in vivo. miR-30a-5p sensitizes NSCLC cells to paclitaxel by inducing apoptosis through BCL-2 inhibition. miR-30a-5p negatively correlates with BCL-2 and predicts a favorable clinical outcome in NSCLC patients.
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98
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Lee SY, Jeong EK, Ju MK, Jeon HM, Kim MY, Kim CH, Park HG, Han SI, Kang HS. Induction of metastasis, cancer stem cell phenotype, and oncogenic metabolism in cancer cells by ionizing radiation. Mol Cancer 2017; 16:10. [PMID: 28137309 PMCID: PMC5282724 DOI: 10.1186/s12943-016-0577-4] [Citation(s) in RCA: 354] [Impact Index Per Article: 50.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 12/25/2016] [Indexed: 12/12/2022] Open
Abstract
Radiation therapy is one of the major tools of cancer treatment, and is widely used for a variety of malignant tumours. Radiotherapy causes DNA damage directly by ionization or indirectly via the generation of reactive oxygen species (ROS), thereby destroying cancer cells. However, ionizing radiation (IR) paradoxically promotes metastasis and invasion of cancer cells by inducing the epithelial-mesenchymal transition (EMT). Metastasis is a major obstacle to successful cancer therapy, and is closely linked to the rates of morbidity and mortality of many cancers. ROS have been shown to play important roles in mediating the biological effects of IR. ROS have been implicated in IR-induced EMT, via activation of several EMT transcription factors—including Snail, HIF-1, ZEB1, and STAT3—that are activated by signalling pathways, including those of TGF-β, Wnt, Hedgehog, Notch, G-CSF, EGFR/PI3K/Akt, and MAPK. Cancer cells that undergo EMT have been shown to acquire stemness and undergo metabolic changes, although these points are debated. IR is known to induce cancer stem cell (CSC) properties, including dedifferentiation and self-renewal, and to promote oncogenic metabolism by activating these EMT-inducing pathways. Much accumulated evidence has shown that metabolic alterations in cancer cells are closely associated with the EMT and CSC phenotypes; specifically, the IR-induced oncogenic metabolism seems to be required for acquisition of the EMT and CSC phenotypes. IR can also elicit various changes in the tumour microenvironment (TME) that may affect invasion and metastasis. EMT, CSC, and oncogenic metabolism are involved in radioresistance; targeting them may improve the efficacy of radiotherapy, preventing tumour recurrence and metastasis. This study focuses on the molecular mechanisms of IR-induced EMT, CSCs, oncogenic metabolism, and alterations in the TME. We discuss how IR-induced EMT/CSC/oncogenic metabolism may promote resistance to radiotherapy; we also review efforts to develop therapeutic approaches to eliminate these IR-induced adverse effects.
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Affiliation(s)
- Su Yeon Lee
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Pusan, 609-735, Korea
| | - Eui Kyong Jeong
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Pusan, 609-735, Korea
| | - Min Kyung Ju
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Pusan, 609-735, Korea
| | - Hyun Min Jeon
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Pusan, 609-735, Korea
| | - Min Young Kim
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Pusan, 619-953, Korea
| | - Cho Hee Kim
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Pusan, 609-735, Korea.,DNA Identification Center, National Forensic Service, Seoul, 158-707, Korea
| | - Hye Gyeong Park
- Nanobiotechnology Center, Pusan National University, Pusan, 609-735, Korea
| | - Song Iy Han
- The Division of Natural Medical Sciences, College of Health Science, Chosun University, Gwangju, 501-759, Korea
| | - Ho Sung Kang
- Department of Molecular Biology, College of Natural Sciences, Pusan National University, Pusan, 609-735, Korea.
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99
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Chen L, Wang L, Shen H, Lin H, Li D. Anthelminthic drug niclosamide sensitizes the responsiveness of cervical cancer cells to paclitaxel via oxidative stress-mediated mTOR inhibition. Biochem Biophys Res Commun 2017; 484:416-421. [PMID: 28137584 DOI: 10.1016/j.bbrc.2017.01.140] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 01/25/2017] [Indexed: 01/07/2023]
Abstract
Drug repurposing represents an alternative therapeutic strategy to cancer treatment. The potent anti-cancer activities of a FDA-approved anthelminthic drug niclosamide have been demonstrated in various cancers. However, whether niclosamide is active against cervical cancer is unknown. In this study, we investigated the effects of niclosamide alone and its combination with paclitaxel in cervical cancer in vitro and in vivo. We found that niclosamide significantly inhibited proliferation and induced apoptosis of a panel of cervical cancer cell lines, regardless of their cellular origin and genetic pattern. Niclosamide also inhibited tumor growth in cervical cancer xenograft mouse model. Importantly, niclosamide significantly enhanced the responsiveness of cervical cancer cell to paclitaxel. We further found that niclosamide induced mitochondrial dysfunctions via inhibiting mitochondrial respiration, complex I activity and ATP generation, which led to oxidative stress. ROS scavenge agent N-acetyl-l-cysteine (NAC) completely reversed the effects of niclosamide in increasing cellular ROS, inhibiting proliferation and inducing apoptosis, suggesting that oxidative stress induction is the mechanism of action of niclosamide in cervical cancer cells. In addition, niclosamide significantly inhibited mammalian target of rapamycin (mTOR) signaling pathway in cervical cancer cells and its inhibitory effect on mTOR is modulated by oxidative stress. Our work suggests that niclosamide is a useful addition to the treatment armamentarium for cervical cancer and induction of oxidative stress may be a potential therapeutic strategy in cervical cancer.
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Affiliation(s)
- Liping Chen
- Department of Obstetrics and Gynecology, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430033, China
| | - Li Wang
- Department of Obstetrics and Gynecology, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430033, China
| | - Haibin Shen
- Department of Obstetrics and Gynecology, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430033, China
| | - Hui Lin
- Department of Obstetrics and Gynecology, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430033, China.
| | - Dan Li
- Department of Obstetrics and Gynecology, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430033, China.
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100
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Wang C, Wu P, Shen XL, Wei XY, Jiang ZH. Synthesis, cytotoxic activity and drug combination study of tertiary amine derivatives of 2′,4′-dihydroxyl-6′-methoxyl-3′,5′-dimethylchalcone. RSC Adv 2017. [DOI: 10.1039/c7ra08639c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Tertiary amine derivative of DMC (2b) exhibited broad spectrum of cytotoxicity and strong synergism with Taxol® against HeLa/Tax cells.
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Affiliation(s)
- Chen Wang
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization
- South China Botanical Garden
- Chinese Academy of Sciences
- Guangzhou 510650
- People's Republic of China
| | - Ping Wu
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization
- South China Botanical Garden
- Chinese Academy of Sciences
- Guangzhou 510650
- People's Republic of China
| | - Xiao-Ling Shen
- Laboratory of Herbal Drug Discovery
- Tropical Medicine Institute
- Guangzhou University of Chinese Medicine
- Guangzhou 510405
- People's Republic of China
| | - Xiao-Yi Wei
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization
- South China Botanical Garden
- Chinese Academy of Sciences
- Guangzhou 510650
- People's Republic of China
| | - Zi-Hua Jiang
- Department of Chemistry
- Lakehead University
- Thunder Bay
- Canada
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