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Mingjie Y, Yair A, Tali G. The RIDD activity of C. elegans IRE1 modifies neuroendocrine signaling in anticipation of environment stress to ensure survival. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.10.552841. [PMID: 37609168 PMCID: PMC10441387 DOI: 10.1101/2023.08.10.552841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Xbp1 splicing and regulated IRE1-dependent RNA decay (RIDD) are two RNase activities of the ER stress sensor IRE1. While Xbp1 splicing has important roles in stress responses and animal physiology, the physiological role(s) of RIDD remain enigmatic. Genetic evidence in C. elegans connects XBP1-independent IRE1 activity to organismal stress adaptation, but whether this is via RIDD, and what are the targets is yet unknown. We show that cytosolic kinase/RNase domain of C. elegans IRE1 is indeed capable of RIDD in human cells, and that sensory neurons use RIDD to signal environmental stress, by degrading mRNA of TGFβ-like growth factor DAF-7. daf-7 was degraded in human cells by both human and worm IRE1 RNAse activity with same efficiency and specificity as Blos1, confirming daf-7 as RIDD substrate. Surprisingly, daf-7 degradation in vivo was triggered by concentrations of ER stressor tunicamycin too low for xbp-1 splicing. Decrease in DAF-7 normally signals food limitation and harsh environment, triggering adaptive changes to promote population survival. Because C. elegans is a bacteriovore, and tunicamycin, like other common ER stressors, is an antibiotic secreted by Streptomyces spp., we asked whether daf-7 degradation by RIDD could signal pending food deprivation. Indeed, pre-emptive tunicamycin exposure increased survival of C. elegans populations under food limiting/high temperature stress, and this protection was abrogated by overexpression of DAF-7. Thus, C. elegans uses stress-inducing metabolites in its environment as danger signals, and employs IRE1's RIDD activity to modulate the neuroendocrine signaling for survival of upcoming environmental challenge.
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Affiliation(s)
- Ying Mingjie
- Department of Biology, Drexel University, Philadelphia, PA
- Department of Pathology and Lab Medicine, The Children's Hospital of Philadelphia and the University of Pennsylvania, Philadelphia, PA, USA
| | - Argon Yair
- Department of Pathology and Lab Medicine, The Children's Hospital of Philadelphia and the University of Pennsylvania, Philadelphia, PA, USA
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Du QY, Huo FC, Du WQ, Sun XL, Jiang X, Zhang LS, Pei DS. METTL3 potentiates progression of cervical cancer by suppressing ER stress via regulating m6A modification of TXNDC5 mRNA. Oncogene 2022; 41:4420-4432. [DOI: 10.1038/s41388-022-02435-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 07/27/2022] [Accepted: 08/04/2022] [Indexed: 11/09/2022]
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Peng L, Gao J, Hu Z, Zhang H, Tang L, Wang F, Cui L, Liu S, Zhao Y, Xu H, Su X, Feng X, Fang Y, Chen J. A Novel Cleavage Pattern of Complement C5 Induced by Chlamydia trachomatis Infection via the Chlamydial Protease CPAF. Front Cell Infect Microbiol 2022; 11:732163. [PMID: 35087765 PMCID: PMC8787135 DOI: 10.3389/fcimb.2021.732163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 12/10/2021] [Indexed: 11/24/2022] Open
Abstract
Urogenital Chlamydia trachomatis infection is one of the most common bacterial sexually transmitted diseases globally. Untreated C. trachomatis infections can ascend to the upper genital tract and establish a series of severe complications. Previous studies using C3−/− and C5−/− mice models demonstrated that C3-independent activation of C5 occurred during C. trachomatis infection. However, the mechanism of how chlamydial infection activates C5 in the absence of C3 has yet to be elucidated. To delineate interactions between C5 and chlamydial infection, cleavage products in a co-incubation system containing purified human C5 and C. trachomatis-HeLa229 cell lysates were analyzed, and a novel cleavage pattern of C5 activation induced by C. trachomatis infection was identified. C5 was cleaved efficiently at the previously unidentified site K970, but was cleaved poorly at site R751. C5b was modified to C5bCt, which later formed C5bCt-9, which had enhanced lytic ability compared with C5b-9. The chlamydial serine protease CPAF contributed to C3-independent C5 activation during C. trachomatis infection. Nafamostat mesylate, a serine protease inhibitor with a good safety profile, had a strong inhibitory effect on C5 activation induced by chlamydial infection. These discoveries reveal the mechanism of C3-independent C5 activation induced by chlamydial infection, and furthermore provide a potential therapeutic target and drug for preventing tubal fibrosis caused by chlamydial infection.
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Affiliation(s)
- Liang Peng
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Jingping Gao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Zihao Hu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Hongbo Zhang
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Lingli Tang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Fuyan Wang
- Department of Immunology, School of Basic Medical Science, Central South University, Changsha, China
| | - Lei Cui
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Shanshan Liu
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yujie Zhao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Hong Xu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xin Su
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiaojing Feng
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yiyuan Fang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Jianlin Chen
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, China
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Naz I, Ramchandani S, Khan MR, Yang MH, Ahn KS. Anticancer Potential of Raddeanin A, a Natural Triterpenoid Isolated from Anemone raddeana Regel. Molecules 2020; 25:E1035. [PMID: 32106609 PMCID: PMC7179125 DOI: 10.3390/molecules25051035] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/19/2020] [Accepted: 02/21/2020] [Indexed: 12/24/2022] Open
Abstract
Natural compounds extracted from plants have gained immense importance in the fight against cancer cells due to their lesser toxicity and potential therapeutic effects. Raddeanin A (RA), an oleanane type triterpenoid is a major compound isolated from Anemone raddeana Regel. As an anticancer agent, RA induces apoptosis, cell cycle arrest, inhibits invasion, migration and angiogenesis in malignant cell lines as well as in preclinical models. In this systemic review, the pharmacological effects of RA and its underlying molecular mechanisms were carefully analyzed and potential molecular targets have been highlighted. The apoptotic potential of RA can be mediated through the modulation of Bcl-2, Bax, caspase-3, caspase-8, caspase-9, cytochrome c and poly-ADP ribose polymerase (PARP) cleavage. PI3K/Akt signaling pathway serves as the major molecular target affected by RA. Furthermore, RA can block cell proliferation through inhibition of canonical Wnt/β-catenin signaling pathway in colorectal cancer cells. RA can also alter the activation of NF-κB and STAT3 signaling pathways to suppress invasion and metastasis. RA has also exhibited promising anticancer potential against drug resistant cancer cells and can enhance the anticancer effects of several chemotherapeutic agents. Overall, RA may function as a promising compound in combating cancer, although further in-depth study is required under clinical settings to validate its efficacy in cancer patients.
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Affiliation(s)
- Irum Naz
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan;
| | | | | | - Min Hee Yang
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Korea;
| | - Kwang Seok Ahn
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Korea;
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Zhang Y, Zhu X, Huang X, Wei X, Zhao D, Jiang L, Zhao X, Du Y. Advances in Understanding the Effects of Erythropoietin on Renal Fibrosis. Front Med (Lausanne) 2020; 7:47. [PMID: 32154256 PMCID: PMC7046585 DOI: 10.3389/fmed.2020.00047] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 01/30/2020] [Indexed: 12/12/2022] Open
Abstract
Renal fibrosis is the common manifestation of the pathogenesis of end-stage renal disease that results from different types of renal insult, and is a hallmark of chronic kidney disease (CKD). The main pathologic characteristics of renal fibrosis are renal interstitial fibroblast hyperplasia and the aberrant and excessive deposition of extracellular matrix, pathologies that lead to the destruction of normal renal tubules and interstitial structures. However, the biological significance of fibrosis during the progression of CKD is not clear, and there are no approved clinical treatments for delaying or reversing renal fibrosis. Studies of the mechanism of renal fibrosis and of potential measures of prevention and treatment have focused on erythropoietin (EPO), a hormone best known as a regulator of red blood cell production. These recent studies have found that EPO may also provide efficient protection against renal fibrosis. Future therapeutic approaches using EPO offer new hope for patients with CKD. The aim of the present review is to briefly discuss the role of EPO in renal fibrosis, to identify its possible mechanisms in preventing renal fibrosis, and to provide novel ideas for the use of EPO in future treatments of renal fibrosis.
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Affiliation(s)
- Yangyang Zhang
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Xiaoyu Zhu
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Xiu Huang
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Xuejiao Wei
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Dan Zhao
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Lili Jiang
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Xiaoxia Zhao
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Yujun Du
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
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Taniguchi A, Susa T, Kogo H, Iizuka-Kogo A, Yokoo S, Matsuzaki T. Long-term Pilocarpine Treatment Improves Salivary Flow in Irradiated Mice. Acta Histochem Cytochem 2019; 52:45-58. [PMID: 31341340 PMCID: PMC6643095 DOI: 10.1267/ahc.19006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/28/2019] [Indexed: 12/11/2022] Open
Abstract
Radiation therapy for head and neck cancer frequently causes salivary gland dysfunction. Pilocarpine is a clinically approved and effective drug that induces saliva secretion, thereby keeping the oral mucosa moist and reducing discomfort in patients, but the effect is transient. We expected that this drug also has beneficial long-term effects that maintain the integrity of salivary glands by reducing, for instance, apoptosis. Here, we examined the effects of long-term pilocarpine administration in irradiated mice. The results indicated that long-term pilocarpine administration significantly improved salivary flow in irradiated mice, suggesting the potential beneficial effects of long-term administration. To elucidate the underlying mechanism, we analyzed the histology, apoptosis, and proliferation of acinar cells, and the expression of functional membrane proteins such as transmembrane member 16A, aquaporin-5, and Na-K-Cl cotransporter. Long-term pilocarpine treatment seemed to decrease irradiation-induced apoptosis, although the change was not statistically significant. The present results indicated that long-term administration of pilocarpine has beneficial effects on salivary flow in irradiated mice, and suggested that long-term administration possibly decreases apoptosis in irradiated salivary glands.
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Affiliation(s)
- Akie Taniguchi
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine
| | - Taketo Susa
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine
| | - Hiroshi Kogo
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine
| | - Akiko Iizuka-Kogo
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine
| | - Satoshi Yokoo
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine
| | - Toshiyuki Matsuzaki
- Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine
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Ye J, Qi L, Chen K, Li R, Song S, Zhou C, Zhai W. Metformin induces TPC-1 cell apoptosis through endoplasmic reticulum stress-associated pathways in vitro and in vivo. Int J Oncol 2019; 55:331-339. [PMID: 31180536 DOI: 10.3892/ijo.2019.4820] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 05/23/2019] [Indexed: 11/05/2022] Open
Abstract
Thyroid cancer is among the most common types of malignant tumor of the endocrine system. The role of metformin in the inhibition of cancer cell proliferation and induction of apoptosis is widely accepted. The present study explored the effect and the underlying mechanisms of metformin on human thyroid cancer TPC‑1 cells. Following treatment of TPC‑1 cells with different concentrations of metformin, cell proliferation and apoptosis were analyzed by cell counting kit‑8 (CCK‑8) assay and flow cytometry, respectively. Reverse transcription‑quantitative PCR and western blotting were used to detect alterations in the mRNA and protein expression levels, respectively, for heat shock protein family A member 5 (HSPA5, also known as Bip), DNA damage‑inducible transcript 3 (DDIT3, also known as CHOP) and caspase‑12. The results demonstrated that treatment with metformin inhibited proliferation and induced apoptosis in a concentration and time‑dependent manner. In addition, treatment with metformin increased the expression of Bip, CHOP and caspase‑12 in vitro, activating endoplasmic reticulum (ER) stress. Thapsigargin treatment enhanced the apoptosis induced by metformin. Inhibition of ER stress by 4‑phenylbutyrate reversed the metformin‑induced apoptosis. Finally, treatment with metformin inhibited thyroid cancer growth and increased the expression of Bip and CHOP in a TPC‑1 cell xenograft model. These results indicated that metformin increased the apoptotic rate of thyroid cancer cells via ER stress‑associated mechanisms.
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Affiliation(s)
- Jianwen Ye
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Lei Qi
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Kunlun Chen
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Renfeng Li
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Shengping Song
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Chuang Zhou
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Wenlong Zhai
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
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Ōmura S, Crump A. Lactacystin: first-in-class proteasome inhibitor still excelling and an exemplar for future antibiotic research. J Antibiot (Tokyo) 2019; 72:189-201. [PMID: 30755736 PMCID: PMC6760633 DOI: 10.1038/s41429-019-0141-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 12/12/2018] [Accepted: 01/07/2019] [Indexed: 01/28/2023]
Abstract
Lactacystin exemplifies the role that serendipity plays in drug discovery and why “finding things without actually looking for them” retains such a pivotal role in the search for the useful properties of chemicals. The first proteasome inhibitor discovered, lactacystin stimulated new possibilities in cancer control. New and innovative uses are regularly being found for lactacystin, including as a model to study dementia, while new formulations and delivery systems may facilitate its use clinically as an anticancer agent. All this provides yet more evidence that we need a comprehensive, collaborative and coordinated programme to fully investigate all new and existing chemical compounds, especially those of microbial origin. We need to do so in order to avoid failing to detect and successfully exploit unsought yet potentially life-saving or extremely advantageous properties of microbial metabolites.
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Affiliation(s)
- Satoshi Ōmura
- Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
| | - Andy Crump
- Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
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Song D, Kong W, Zhang T, Han C, Liu T, Jiao S, Chen J. A retrospective analysis of cisplatin/carboplatin plus paclitaxel in advanced or recurrent cervical cancer. J OBSTET GYNAECOL 2019; 39:389-394. [PMID: 30663464 DOI: 10.1080/01443615.2017.1416595] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
To compare the efficacy and safety of paclitaxel plus carboplatin (TC) and paclitaxel plus cisplatin (TP) in the treatment of advanced or recurrent cervical cancer, this retrospective study included 116 advanced or recurrent cervical cancer cases treated at Beijing Obstetrics and Gynecology Hospital between June 2002 and June 2014. Of these cases, 52 were treated with TC (TC group) and 64 were treated with TP (TP group). We found that the overall survival and response and disease-control rates were not significantly different between the two groups. The TC group had a markedly lower incidence of Grade III-IV gastrointestinal toxicity reactions and a shorter hospitalisation stay than the TP group. The incidences of Grade III-IV bone marrow suppression and renal toxicity were not significantly different between the TP and TC groups. These findings suggest that TC may be a safe and effective alternative to TP for the treatment of advanced or recurrent cervical cancer. Impact Statement What is already known on this subject: Paclitaxel plus cisplatin (TP) is regarded as the standard regimen for cervical cancer, nevertheless, cisplatin is always associated with nephrotoxicity and requires hydration therapy. Carboplatin is a platinum analogue with milder nephrotoxicity than cisplatin. It is reported that carboplatin may be a viable and less toxic alternative to cisplatin in the management of advanced or recurrent cervical cancer, but another study shows that the therapeutic efficacy of paclitaxel plus carboplatin (TC) is non-inferior to that of TP. What the results of this study add: This study compared the efficacy and safety of TC and TP, and found that the TC and TP groups had similar overall response and disease-control rates and survival, but the TC group was better tolerated with a markedly lower incidence of Grades III-IV gastrointestinal toxicity reactions and had a shorter hospitalisation stay than the TP group. What the implications are of these findings for clinical practice and/or further research: TC may be a safe and effective alternative to TP for the treatment of advanced or recurrent cervical cancer in clinical practice.
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Affiliation(s)
- Dan Song
- a Department of Gynecological Oncology , Beijing Obstetrics and Gynecology Hospital, Capital Medical University , Beijing , China
| | - Weimin Kong
- a Department of Gynecological Oncology , Beijing Obstetrics and Gynecology Hospital, Capital Medical University , Beijing , China
| | - Tongqing Zhang
- a Department of Gynecological Oncology , Beijing Obstetrics and Gynecology Hospital, Capital Medical University , Beijing , China
| | - Chao Han
- a Department of Gynecological Oncology , Beijing Obstetrics and Gynecology Hospital, Capital Medical University , Beijing , China
| | - Tingting Liu
- a Department of Gynecological Oncology , Beijing Obstetrics and Gynecology Hospital, Capital Medical University , Beijing , China
| | - Simeng Jiao
- a Department of Gynecological Oncology , Beijing Obstetrics and Gynecology Hospital, Capital Medical University , Beijing , China
| | - Jiao Chen
- a Department of Gynecological Oncology , Beijing Obstetrics and Gynecology Hospital, Capital Medical University , Beijing , China
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Henriques AC, Ribeiro D, Pedrosa J, Sarmento B, Silva PMA, Bousbaa H. Mitosis inhibitors in anticancer therapy: When blocking the exit becomes a solution. Cancer Lett 2018; 440-441:64-81. [PMID: 30312726 DOI: 10.1016/j.canlet.2018.10.005] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/12/2018] [Accepted: 10/02/2018] [Indexed: 12/11/2022]
Abstract
Current microtubule-targeting agents (MTAs) remain amongst the most important antimitotic drugs used against a broad range of malignancies. By perturbing spindle assembly, MTAs activate the spindle assembly checkpoint (SAC), which induces mitotic arrest and subsequent apoptosis. However, besides toxic side effects and resistance, mitotic slippage and failure in triggering apoptosis in various cancer cells are limiting factors of MTAs efficacy. Alternative strategies to target mitosis without affecting microtubules have, thus, led to the identification of small molecules, such as those that target spindle Kinesins, Aurora and Polo-like kinases. Unfortunately, these so-called second-generation of antimitotics, encompassing mitotic blockers and mitotic drivers, have failed in clinical trials. Our recent understanding regarding the mechanisms of cell death during a mitotic arrest pointed out apoptosis as the main variable, providing an opportunity to control the cell fates and influence the effectiveness of antimitotics. Here, we provide an overview on the second-generation of antimitotics, and discuss possible strategies that exploit SAC activity, mitotic slippage/exit and apoptosis induction, in order to improve the efficacy of anticancer strategies that target mitosis.
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Affiliation(s)
- Ana C Henriques
- CESPU, Instituto de Investigação e Formação Avançada Em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra PRD, Portugal; INEB, Instituto Nacional de Engenharia Biomédica, Universidade Do Porto, Porto, Portugal
| | - Diana Ribeiro
- CESPU, Instituto de Investigação e Formação Avançada Em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra PRD, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade Do Porto, Porto, Portugal
| | - Joel Pedrosa
- CESPU, Instituto de Investigação e Formação Avançada Em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra PRD, Portugal
| | - Bruno Sarmento
- CESPU, Instituto de Investigação e Formação Avançada Em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra PRD, Portugal; INEB, Instituto Nacional de Engenharia Biomédica, Universidade Do Porto, Porto, Portugal; i3S - Instituto de Investigação e Inovação Em Saúde, Universidade Do Porto, Porto, Portugal
| | - Patrícia M A Silva
- CESPU, Instituto de Investigação e Formação Avançada Em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra PRD, Portugal
| | - Hassan Bousbaa
- CESPU, Instituto de Investigação e Formação Avançada Em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra PRD, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade Do Porto, Porto, Portugal.
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11
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Jia B, Xue Y, Yan X, Li J, Wu Y, Guo R, Zhang J, Zhang L, Li Y, Liu Y, Sun L. Autophagy inhibitor chloroquine induces apoptosis of cholangiocarcinoma cells via endoplasmic reticulum stress. Oncol Lett 2018; 16:3509-3516. [PMID: 30127955 PMCID: PMC6096195 DOI: 10.3892/ol.2018.9131] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 05/30/2018] [Indexed: 02/06/2023] Open
Abstract
Poor prognosis and chemotherapy tolerance are the main obstacles encountered in the treatment of cholangiocarcinoma. Chloroquine (CQ), an antimalarial agent, is able to induce sustained endoplasmic reticulum (ER) stress by functioning as an autophagy inhibitor. The present study indicated that CQ had the ability to induce apoptosis in QBC939 cholangiocarcinoma cells. Furthermore, using western blotting, Hoechst staining and flow cytometry, it was demonstrated that CQ induced the apoptosis of QBC939 cholangiocarcinoma cells. Analysis by a polymerase chain reaction (PCR) array and confirmation via quantitative PCR technology indicated that the expression levels of growth arrest and DNA damage 153 [C/EBP homologous protein (CHOP)], a key molecule involved in ER stress-induced apoptosis, and its downstream death receptors were increased following CQ stimulation. It was considered that the upregulation of CHOP may mediate CQ-induced extrinsic pathways and autophagy-dependent apoptosis; therefore, the role of autophagy in cholangiocarcinoma treatment was elucidated based on the data demonstrating that CQ regulates the ER-autophagy network in tumor cells. Furthermore, it was considered that CQ may become a novel and effective strategy for the treatment of cholangiocarcinoma.
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Affiliation(s)
- Baoxing Jia
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yanan Xue
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xiaoyu Yan
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Jiuling Li
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yao Wu
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Rui Guo
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Juanjuan Zhang
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Lichao Zhang
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yaping Li
- Department of Dermatology, Jilin Province People's Hospital, Changchun, Jilin 130021, P.R. China
| | - Yahui Liu
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Liankun Sun
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
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12
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Wang Y, Wang JH, Zhang XL, Wang XL, Yang L. Endoplasmic reticulum chaperone glucose-regulated protein 78 in gastric cancer: An emerging biomarker. Oncol Lett 2018; 15:6087-6093. [PMID: 29616092 DOI: 10.3892/ol.2018.8114] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 06/15/2017] [Indexed: 12/17/2022] Open
Abstract
The endoplasmic reticulum (ER) is the principal organelle responsible for the synthesis, initial post-translational modification, folding, export and secretion of proteins. It is also responsible for the maintenance of cellular homeostasis. In response to cellular stress conditions including glucose deprivation, hypoxia and changes in calcium homeostasis, ER stress machinery is activated and triggers the unfolded protein response, resulting in the restoration of homeostasis or activation of cell death. Glucose-regulated protein 78 (GRP78), a molecular chaperone, may be induced by ER stress at the transcriptional and translational level. A number of studies have demonstrated that GRP78 serves an important role in tumor cell proliferation, metastasis, angiogenesis and drug-resistance. The present review systematically describes the association between GRP78 expression and gastric cancer pathogenesis, and emphasizes that GRP78 is a novel diagnostic and therapeutic biomarker of gastric cancer.
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Affiliation(s)
- Yan Wang
- Department of Medical Oncology, Nantong University Affiliated Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Jian-Hong Wang
- Department of Medical Oncology, Nantong University Affiliated Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Xun-Lei Zhang
- Department of Medical Oncology, Nantong University Affiliated Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Xiao-Li Wang
- Department of Medical Oncology, Nantong University Affiliated Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Lei Yang
- Department of Medical Oncology, Nantong University Affiliated Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
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13
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Peng F, Zhang H, Du Y, Tan P. Cetuximab enhances cisplatin-induced endoplasmic reticulum stress-associated apoptosis in laryngeal squamous cell carcinoma cells by inhibiting expression of TXNDC5. Mol Med Rep 2018; 17:4767-4776. [PMID: 29328423 DOI: 10.3892/mmr.2018.8376] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 04/13/2017] [Indexed: 11/06/2022] Open
Abstract
Cisplatin and cetuximab, an anti‑epidermal growth factor receptor (EGFR) monoclonal humanized antibody, have been used for treatment of laryngeal squamous cell carcinoma (LSCC). It has been demonstrated that cisplatin and inhibition of EGFR signaling may induce endoplasmic reticulum (ER) stress‑associated apoptosis. However, ER protein thioredoxin domain‑containing protein 5 (TXNDC5) reportedly protects cells from ER stress‑associated apoptosis. The present study investigated the interaction between cisplatin, cetuximab and TXNDC5 on ER stress‑associated apoptosis in LSCC cells. AMC‑HN‑8 human LSCC cells with or without TXNDC5 overexpression or knockdown were treated with cisplatin (5, 10, 20 and 40 µM) and/or cetuximab (10, 50, 100 and 150 µg/ml), for 12, 24, 36 and 48 h. Cisplatin and cetuximab concentration‑ and time‑dependently increased and decreased the expression of TXNDC5 in AMC‑HN‑8 cells, respectively. Knockdown of TXNDC5 markedly augmented cisplatin‑induced levels of CCAAT/enhancer‑binding protein homologous protein (CHOP), caspase‑3 activity and apoptosis; while overexpression of TXNDC5 largely eliminated cetuximab‑induced levels of CHOP, caspase‑3 activity and apoptosis. Cisplatin and cetuximab demonstrated a combinatorial effect on increasing the levels of CHOP, caspase‑3 activity and apoptosis, which was largely eliminated by overexpression of TXNDC5 or a reactive oxygen species (ROS) scavenger/antagonist. In addition, promoter/luciferase reporter assays revealed that cisplatin and cetuximab regulated the expression of TXNDC5 at the gene transcription/promoter level. In conclusion, the findings suggested that ER stress‑associated apoptosis is a major mechanism underlying the apoptotic effect of cisplatin and cetuximab on LSCC cells; cetuximab enhanced cisplatin‑induced ER stress‑associated apoptosis in LSCC cells largely by inhibiting the expression of TXNDC5 and thereby increasing ROS production; cisplatin and cetuximab had stimulatory and inhibitory effects on the TXNDC5 gene promoter, respectively. The present study offered novel insights into the pharmacological effects of cisplatin and cetuximab on LSCC. It also suggested that TXNDC5 may be a potential therapeutic target for LSCC.
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Affiliation(s)
- Fusen Peng
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Hailin Zhang
- Department of Head and Neck Surgery, Hunan Tumor Hospital, Changsha, Hunan 410013, P.R. China
| | - Youhong Du
- Department of Otolaryngology Head and Neck Surgery, Loudi Central Hospital, Loudi, Hunan 417000, P.R. China
| | - Pingqing Tan
- Department of Head and Neck Surgery, Hunan Tumor Hospital, Changsha, Hunan 410013, P.R. China
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14
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Bulman Page PC, Goodyear RL, Horton AE, Chan Y, Karim R, O’Connell MA, Hamilton C, Slawin AMZ, Buckley BR, Allin SM. Formal Total Synthesis of (+)-C9-Deoxyomuralide from l-Leucine Using a Double Sacrificial Chirality Transfer Approach. J Org Chem 2017; 82:12209-12223. [DOI: 10.1021/acs.joc.7b02078] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | - Benjamin R. Buckley
- Department
of Chemistry, Loughborough University, Loughborough, Leicestershire LE11 3TU, United Kingdom
| | - Steven M. Allin
- School of Science & Technology, Nottingham Trent University, Clifton, Nottingham NG11 8NS, United Kingdom
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15
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Synergy of Raddeanin A and cisplatin induced therapeutic effect enhancement in human hepatocellular carcinoma. Biochem Biophys Res Commun 2017; 485:335-341. [DOI: 10.1016/j.bbrc.2017.02.079] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 02/14/2017] [Indexed: 01/26/2023]
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16
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Zou YR, Zhang J, Wang J, Peng L, Li GS, Wang L. Erythropoietin Receptor Activation Protects the Kidney From Ischemia/Reperfusion-Induced Apoptosis by Activating ERK/p53 Signal Pathway. Transplant Proc 2016; 48:217-21. [PMID: 26915871 DOI: 10.1016/j.transproceed.2016.01.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 01/03/2016] [Accepted: 01/06/2016] [Indexed: 10/22/2022]
Abstract
BACKGROUND Apoptosis plays an important role in renal ischemia/reperfusion (IR) injury. Evidence has shown that erythropoietin (EPO) has an antiapoptotic effect. Therefore, this study aimed to explore the effect and potential mechanism of EPO in renal IR injury. METHODS Kidney IR injury in rats was established by clamping the left renal artery for 30 minutes followed by 24 hours of reperfusion, along with contralateral nephrectomy. Renal function, renal histology, and expression of EPOR, p-EPOR, ERK, p-ERK, p-p53, p53, Bcl-2, Bcl-xl, Bad, and Bax were examined. RESULTS Pretreatment with EPO significantly reduced renal dysfunction, pathologic change, and expression of Bad and Bax. Furthermore, EPO treatment enhanced the expression of p-ERK, p-p53, Bcl-2, and Bcl-xl with no influence on the expression of EPOR, ERK, and p53. CONCLUSIONS These findings demonstrated that EPO pretreatment can attenuate renal IR injury by inhibiting apoptosis by promoting activation of the ERK/p53 signaling.
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Affiliation(s)
- Y-R Zou
- Department of Nephrology, Center of Electronic Science Technology and University of Electronic Science and Technology, Sichuan Academy of Sciences and Sichuan Provincial People's Hospital, Chengdu, People's Republic of China
| | - J Zhang
- Department of Nephrology, Center of Electronic Science Technology and University of Electronic Science and Technology, Sichuan Academy of Sciences and Sichuan Provincial People's Hospital, Chengdu, People's Republic of China
| | - J Wang
- Department of General Medicine, Center of Electronic Science Technology and University of Electronic Science and Technology, Sichuan Academy of Sciences and Sichuan Provincial People's Hospital, Chengdu, People's Republic of China
| | - L Peng
- Department of Nephrology, Center of Electronic Science Technology and University of Electronic Science and Technology, Sichuan Academy of Sciences and Sichuan Provincial People's Hospital, Chengdu, People's Republic of China
| | - G-S Li
- Department of Nephrology, Center of Electronic Science Technology and University of Electronic Science and Technology, Sichuan Academy of Sciences and Sichuan Provincial People's Hospital, Chengdu, People's Republic of China.
| | - L Wang
- Department of Nephrology, Center of Electronic Science Technology and University of Electronic Science and Technology, Sichuan Academy of Sciences and Sichuan Provincial People's Hospital, Chengdu, People's Republic of China.
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17
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Huang W, Zhou Q, Yuan X, Ge ZM, Ran FX, Yang HY, Qiang GL, Li RT, Cui JR. Proteasome Inhibitor YSY01A Enhances Cisplatin Cytotoxicity in Cisplatin-Resistant Human Ovarian Cancer Cells. J Cancer 2016; 7:1133-41. [PMID: 27326257 PMCID: PMC4911881 DOI: 10.7150/jca.14519] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 04/26/2016] [Indexed: 12/28/2022] Open
Abstract
Cisplatin is one of the most common drugs used for treatment of solid tumors such as ovarian cancer. Unfortunately, the development of resistance against this cytotoxic agent limits its clinical use. Here we report that YSY01A, a novel proteasome inhibitor, is capable of suppressing survival of cisplatin-resistant ovarian cancer cells by inducing apoptosis. And YSY01A treatment enhances the cytotoxicity of cisplatin in drug-resistant ovarian cancer cells. Specifically, YSY01A abrogates regulatory proteins important for cell proliferation and anti-apoptosis including NF-κB p65 and STAT3, resulting in down-regulation of Bcl-2. A dramatic increase in cisplatin uptake was also observed by inductively coupled plasma-mass spectrometry following exposure to YSY01A. Taken together, YSY01A serves as a potential candidate for further development as anticancer therapeutics targeting the proteasome.
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Affiliation(s)
- Wei Huang
- 1. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Quan Zhou
- 1. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xia Yuan
- 1. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Ze-Mei Ge
- 2. Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Fu-Xiang Ran
- 1. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Hua-Yu Yang
- 3. Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, Chinese Academy of Medical Sciences and PUMC, Beijing 100730, China
| | - Guang-Liang Qiang
- 4. Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - Run-Tao Li
- 2. Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Jing-Rong Cui
- 1. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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18
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XU YE, WANG CHUNYAN, SU JING, XIE QI, MA LIWEI, ZENG LINCHUAN, YU YANG, LIU SHIBING, LI SONGYAN, LI ZHIXIN, SUN LIANKUN. Tolerance to endoplasmic reticulum stress mediates cisplatin resistance in human ovarian cancer cells by maintaining endoplasmic reticulum and mitochondrial homeostasis. Oncol Rep 2015; 34:3051-60. [DOI: 10.3892/or.2015.4283] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 08/28/2015] [Indexed: 11/05/2022] Open
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19
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Tundo GR, Sbardella D, Ciaccio C, De Pascali S, Campanella V, Cozza P, Tarantino U, Coletta M, Fanizzi FP, Marini S. Effect of cisplatin on proteasome activity. J Inorg Biochem 2015; 153:253-258. [PMID: 26387966 DOI: 10.1016/j.jinorgbio.2015.08.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 08/26/2015] [Accepted: 08/28/2015] [Indexed: 02/01/2023]
Abstract
Cisplatin is a widely used chemotherapy drug which exerts cytotoxic activity by affecting both nuclear and cytosolic pathways. Herewith, we report, for the first time, that cisplatin inhibits proteasome activity in vitro. Cisplatin induces a dose dependent inhibition of the three enzymatic activities of proteasome (i.e., the chymotrypsin-like activity, the trypsin-like activity and the caspase-like activity). Moreover, cisplatin administration to neuroblastoma cells brings about a fast loss of proteasome particle activity, which is followed by a de novo synthesis of proteasome. Lastly, we report that the simultaneous administration of lactacystin and cisplatin enhances the cytotoxicity of cisplatin alone. The overall bulk of data opens to an intriguing scenario, concerning the biological effects of cisplatin in the control of cellular life, which goes beyond the well established genotoxic effect.
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Affiliation(s)
- G R Tundo
- Department of Clinical Sciences and Translational Medicine, University of Roma Tor Vergata, Via Montpellier 1, I-00133 Roma, Italy; CIRCMSB, Via C. Ulpiani 27, I-70125 Bari, Italy
| | - D Sbardella
- Department of Clinical Sciences and Translational Medicine, University of Roma Tor Vergata, Via Montpellier 1, I-00133 Roma, Italy; CIRCMSB, Via C. Ulpiani 27, I-70125 Bari, Italy
| | - C Ciaccio
- Department of Clinical Sciences and Translational Medicine, University of Roma Tor Vergata, Via Montpellier 1, I-00133 Roma, Italy; CIRCMSB, Via C. Ulpiani 27, I-70125 Bari, Italy
| | - S De Pascali
- CIRCMSB, Via C. Ulpiani 27, I-70125 Bari, Italy; Department of Environmental Biological Sciences and Technologies (Di.S.Te.B.A.), University of Salento, Lecce, Italy
| | - V Campanella
- Department of Clinical Sciences and Translational Medicine, University of Roma Tor Vergata, Via Montpellier 1, I-00133 Roma, Italy
| | - P Cozza
- Department of Clinical Sciences and Translational Medicine, University of Roma Tor Vergata, Via Montpellier 1, I-00133 Roma, Italy
| | - U Tarantino
- Department of Clinical Sciences and Translational Medicine, University of Roma Tor Vergata, Via Montpellier 1, I-00133 Roma, Italy; Center for Space Biomedicine, University of Roma Tor Vergata, Via Montpellier 1, I-00133 Roma, Italy
| | - M Coletta
- Department of Clinical Sciences and Translational Medicine, University of Roma Tor Vergata, Via Montpellier 1, I-00133 Roma, Italy; CIRCMSB, Via C. Ulpiani 27, I-70125 Bari, Italy; Center for Space Biomedicine, University of Roma Tor Vergata, Via Montpellier 1, I-00133 Roma, Italy
| | - F P Fanizzi
- CIRCMSB, Via C. Ulpiani 27, I-70125 Bari, Italy; Department of Environmental Biological Sciences and Technologies (Di.S.Te.B.A.), University of Salento, Lecce, Italy
| | - S Marini
- Department of Clinical Sciences and Translational Medicine, University of Roma Tor Vergata, Via Montpellier 1, I-00133 Roma, Italy; CIRCMSB, Via C. Ulpiani 27, I-70125 Bari, Italy; Center for Space Biomedicine, University of Roma Tor Vergata, Via Montpellier 1, I-00133 Roma, Italy.
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20
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Zhang L, Su J, Xie Q, Zeng L, Wang Y, Yi D, Yu Y, Liu S, Li S, Xu Y. 2-Deoxy-d-Glucose Sensitizes Human Ovarian Cancer Cells to Cisplatin by Increasing ER Stress and Decreasing ATP Stores in Acidic Vesicles. J Biochem Mol Toxicol 2015; 29:572-8. [PMID: 26241884 DOI: 10.1002/jbt.21730] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 06/15/2015] [Accepted: 06/17/2015] [Indexed: 01/07/2023]
Abstract
Cisplatin is a commonly used chemotherapeutic agent; however, the development of acquired resistance limits its application. Here, we demonstrate that 2-deoxy-d-glucose (2-DG) enhanced the antitumor effects of cisplatin in SKOV3 cells, which include inhibition of proliferation and promotion of apoptosis. Additionally, either cisplatin or 2-DG alone could upregulate the endoplasmic reticulum (ER) stress-associated protein glucose-regulated protein-78 (GRP78). Moreover, exposure to 2-DG increased the expression of GRP78 induced by cisplatin. Cisplatin also upregulated ER stress-associated apoptotic protein 153/C/EBP homology protein (CHOP) in SKOV3 cells. While treatment with 2-DG alone could not upregulate the CHOP expression, a combination of both 2-DG and cisplatin increased the protein levels of CHOP above those induced by Cisplatin alone. Finally, cisplatin mediated an increase in ATP stores within acidic vesicles, whereas 2-DG decreased this effect. These data demonstrate that 2-DG sensitizes SKOV3 cells to cisplatin by increasing ER stress and decreasing ATP stores in acidic vesicles.
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Affiliation(s)
- Lili Zhang
- School of Public Health, Jilin Medical University, Jilin, Jilin, People's Republic of China
| | - Jing Su
- Department of Pathophysiology, Basic College of Medicine, Jilin University, Changchun, Jilin, People's Republic of China
| | - Qi Xie
- Department of Pathophysiology, Basic College of Medicine, Jilin University, Changchun, Jilin, People's Republic of China
| | - Linchuan Zeng
- School of Public Health, Jilin Medical University, Jilin, Jilin, People's Republic of China
| | - Yan Wang
- School of Public Health, Jilin Medical University, Jilin, Jilin, People's Republic of China
| | - Dan Yi
- Medical Examination Center, Jilin Traditional Chinese and Western Medicine Hospital, Jilin, Jilin, People's Republic of China
| | - Yang Yu
- Medical Research Laboratory, Jilin Medical University, Jilin, Jilin, People's Republic of China
| | - Shibing Liu
- Medical Research Laboratory, Jilin Medical University, Jilin, Jilin, People's Republic of China
| | - Songyan Li
- Medical Research Laboratory, Jilin Medical University, Jilin, Jilin, People's Republic of China
| | - Ye Xu
- Medical Research Laboratory, Jilin Medical University, Jilin, Jilin, People's Republic of China. .,Department of Histology and Embryology, Jilin Medical University, Jilin, Jilin, People's Republic of China.
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21
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Gatti L, Cassinelli G, Zaffaroni N, Lanzi C, Perego P. New mechanisms for old drugs: Insights into DNA-unrelated effects of platinum compounds and drug resistance determinants. Drug Resist Updat 2015; 20:1-11. [PMID: 26003720 DOI: 10.1016/j.drup.2015.04.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 04/27/2015] [Accepted: 04/29/2015] [Indexed: 01/11/2023]
Abstract
Platinum drugs have been widely used for the treatment of several solid tumors. Although DNA has been recognized as the primary cellular target for these agents, there are unresolved issues concerning their effects and the molecular mechanisms underlying the antitumor efficacy. These cytotoxic agents interact with sub-cellular compartments other than the nucleus. Here, we review how such emerging phenomena contribute to the pharmacologic activity as well as to drug resistance phenotypes. DNA-unrelated effects of platinum drugs involve alterations at the plasma membrane and in endo-lysosomal compartments. A direct interaction with the mitochondria also appears to be implicated in drug-induced cell death. Moreover, the pioneering work of a few groups has shown that platinum drugs can act on the tumor microenvironment as well, and potentiate antitumor activity of the immune system. These poorly understood aspects of platinum drug activity sites may be harnessed to enhance their antitumor efficacy. A complete understanding of DNA-unrelated effects of platinum compounds might reveal new aspects of drug resistance allowing the implementation of the antitumor therapeutic efficacy of platinum compound-based regimens and minimization of their toxic side effects.
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Affiliation(s)
- Laura Gatti
- Molecular Pharmacology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42/via Venezian 1, 20133 Milan, Italy
| | - Giuliana Cassinelli
- Molecular Pharmacology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42/via Venezian 1, 20133 Milan, Italy
| | - Nadia Zaffaroni
- Molecular Pharmacology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42/via Venezian 1, 20133 Milan, Italy
| | - Cinzia Lanzi
- Molecular Pharmacology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42/via Venezian 1, 20133 Milan, Italy
| | - Paola Perego
- Molecular Pharmacology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42/via Venezian 1, 20133 Milan, Italy.
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