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García-López D, Zaragoza-Ojeda M, Eguía-Aguilar P, Arenas-Huertero F. Endoplasmic Reticulum Stress in Gliomas: Exploiting a Dual-Effect Dysfunction through Chemical Pharmaceutical Compounds and Natural Derivatives for Therapeutical Uses. Int J Mol Sci 2024; 25:4078. [PMID: 38612890 PMCID: PMC11012637 DOI: 10.3390/ijms25074078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 04/14/2024] Open
Abstract
The endoplasmic reticulum maintains proteostasis, which can be disrupted by oxidative stress, nutrient deprivation, hypoxia, lack of ATP, and toxicity caused by xenobiotic compounds, all of which can result in the accumulation of misfolded proteins. These stressors activate the unfolded protein response (UPR), which aims to restore proteostasis and avoid cell death. However, endoplasmic response-associated degradation (ERAD) is sometimes triggered to degrade the misfolded and unassembled proteins instead. If stress persists, cells activate three sensors: PERK, IRE-1, and ATF6. Glioma cells can use these sensors to remain unresponsive to chemotherapeutic treatments. In such cases, the activation of ATF4 via PERK and some proteins via IRE-1 can promote several types of cell death. The search for new antitumor compounds that can successfully and directly induce an endoplasmic reticulum stress response ranges from ligands to oxygen-dependent metabolic pathways in the cell capable of activating cell death pathways. Herein, we discuss the importance of the ER stress mechanism in glioma and likely therapeutic targets within the UPR pathway, as well as chemicals, pharmaceutical compounds, and natural derivatives of potential use against gliomas.
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Affiliation(s)
- Daniel García-López
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (D.G.-L.); (M.Z.-O.); (P.E.-A.)
- Facultad de Ciencia y Tecnología, Universidad Simón Bolívar, Mexico City 03920, Mexico
| | - Montserrat Zaragoza-Ojeda
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (D.G.-L.); (M.Z.-O.); (P.E.-A.)
| | - Pilar Eguía-Aguilar
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (D.G.-L.); (M.Z.-O.); (P.E.-A.)
- Departamento de Patología Clínica y Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Francisco Arenas-Huertero
- Laboratorio de Investigación en Patología Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (D.G.-L.); (M.Z.-O.); (P.E.-A.)
- Centro de Investigación en Biomedicina y Bioseguridad, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
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Retraction. Anat Rec (Hoboken) 2021; 304:2901. [PMID: 34708936 DOI: 10.1002/ar.24813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Zhang G, Wang B, Cheng S, Fan H, Liu S, Zhou B, Liu W, Liang R, Tang Y, Zhang Y. KDELR2 knockdown synergizes with temozolomide to induce glioma cell apoptosis through the CHOP and JNK/p38 pathways. Transl Cancer Res 2021; 10:3491-3506. [PMID: 35116653 PMCID: PMC8799170 DOI: 10.21037/tcr-21-869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/23/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND The C-terminal tetrapeptide Lys-Asp-Glu-Leu receptors (KDELRs) are transmembrane proteins that regulate ER stress (ERS) response, growth, differentiation, and immune responses. There is an association between KDELR2and promotion of glioblastoma tumorigenesis. The aim of the present study was to explore the functional mechanism of KDELR2 in glioma and during response to chemotherapy to temozolomide (TMZ). METHODS The expression of KDELR2 in glioma tissues and cells was evaluated by immunohistochemistry, western blot and RT-qPCR assay. Then role of KDELR2 was demonstrated by CCK8, colony formation, flow cytometry and Hochest 33258 assays. The expression of genes (ATF4, ATF6, PERK, eIF2-α, GRP78 and CHOP) in U373 cells was evaluated by RT-qPCR. The protein expression of genes (cleaved caspase 3, caspase 3, cleaved PARP, PARP, Bax, Bcl-2, JNK, p-JNK, p38, p-p38, ATF4, ATF6, XBP-1s, PERK, p-PERK, GRP78 and CHOP) was measured by western blot assay. RESULTS The expression of KDELR2 was upregulated in high-grade gliomas tissues. KDELR2 knockdown suppressed cell proliferation but increased cell apoptosis. Further, Knockdown of KDELR2 also activated the ER stress (ERS)-dependent CHOP pathway, and resulted in increased levels of phosphorylated c-Jun N-terminal kinase (JNK) and p38. Moreover, the combination of KDELR2 knockdown and TMZ application showed a synergistic cytotoxic effect in U373 cells through the ERS-dependent CHOP and JNK/p38 pathways. CONCLUSIONS KDELR2 knockdown induces apoptosis and sensitizes glioma cells to TMZ, which is mediated by the ERS-dependent CHOP and JNK/p38 pathways.
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Affiliation(s)
- Guofeng Zhang
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Neurosurgery, The Affiliated Jiujiang Hospital of Nanchang University, Jiujiang, China
| | - Bin Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Shiqi Cheng
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Hengyi Fan
- Department Radiation Oncology, Klinikum rechts der lsar, Technische Universität München, Munich, Germany
| | - Shaowen Liu
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Bin Zhou
- Department of Pathology, The Affiliated Jiujiang Hospital of Nanchang University, Jiujiang, China
| | - Weibin Liu
- Department of Neurosurgery, The Affiliated Jiujiang Hospital of Nanchang University, Jiujiang, China
| | - Rui Liang
- Department of Neurosurgery, The Affiliated Jiujiang Hospital of Nanchang University, Jiujiang, China
| | - Youjia Tang
- Department of Neurosurgery, The Affiliated Jiujiang Hospital of Nanchang University, Jiujiang, China
| | - Yan Zhang
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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Kong WS, Shen FX, Xie RF, Zhou G, Feng YM, Zhou X. Bufothionine induces autophagy in H22 hepatoma-bearing mice by inhibiting JAK2/STAT3 pathway, a possible anti-cancer mechanism of cinobufacini. JOURNAL OF ETHNOPHARMACOLOGY 2021; 270:113848. [PMID: 33485977 DOI: 10.1016/j.jep.2021.113848] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/11/2021] [Accepted: 01/14/2021] [Indexed: 05/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cinobufacini is extracted from the skins and parotid venom glands of the toad for treating symptoms like swelling and pain in ancient times. Nowadays, cinobifucini injection has also achieved satisfactory therapeutic effects on hepatocellular carcinoma (HCC) in China. AIM OF THE STUDY Our previous work found that bufothionine, an alkaloid abundant in cinobufacini injection, induced mitochondria-mediated apoptosis. In this work, the underlying effects of bufothionine on autophagy in HCC and its possible dependent pathway were investigated. METHODS CCK-8 and Hoechst staining assays were performed to verify effects of drugs on proliferation and apoptosis of SMMC7721 cell. H22-tumor-bearing mice model was established by inoculating ascites fluid. HE staining was used to observe pathological changes in liver and tumor tissues. ELISA and Western blot experiments were conducted to investigate IL-6/JAK2/STAT3 signaling pathway. The effects of drugs on expressions of autophagic relative proteins were investigated by Western blot in vitro and in vivo. RESULTS In vitro, CCK-8 and Hoechst staining assays showed that bufothionine inhibited SMMC7721 cell proliferation and promoted apoptosis at 100 μM. In vivo, bufothionine relieved symptoms of H22-tumor-bearing mice and exerted anti-inflammation activity. ELISA and Western blot demonstrated that bufothionine significantly reduced serum IL-6 concentration, suppressed p-Stat3tyr705, p-Stat3ser727 and Jak2 expressions in tumor tissues and upregulated Atg5, Atg7 and LC3Ⅱ expressions in SMMC7721 cell and H22 tumor. CONCLUSION This is the first report showing that bufothionine might induce autophagy in HCC by inhibiting JAK2/STAT3 pathway, presenting a possible anti-cancer mechanism of bufothionine in cinobufacini injection.
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Affiliation(s)
- Wei-Song Kong
- Department of Pharmacy, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Fang-Xue Shen
- Department of Pharmacy, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Rui-Fang Xie
- Department of Pharmacy, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Gui Zhou
- Department of Pharmacy, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Yi-Ming Feng
- Department of Pharmacy, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Xin Zhou
- Department of Pharmacy, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.
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Hu ZH, Wang GJ, Li RX, Zhu TY, Wang ZY, Ding HX, Hu XM. Upregulation of miR-133a-3p enhances Bufothionine-induced gastric cancer cell death by modulating IGF1R/PI3K/Akt signal pathway mediated ER stress. Life Sci 2020; 259:118180. [PMID: 32758622 DOI: 10.1016/j.lfs.2020.118180] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 07/18/2020] [Accepted: 07/28/2020] [Indexed: 02/09/2023]
Abstract
AIMS Bufothionine had been used for gastric cancer (GC) treatment, and this study managed to uncover the underlying mechanisms. MATERIALS AND METHODS Cell proliferation was determined by CCK-8 assay and colony formation assay. Flow cytometry (FCM) and TUNEL assay were used to measure cell apoptosis ratio. Intracellular ROS was measured by DCFH-DA probes. qRT-PCR was used to determine miRNAs levels. Western Blot was performed to probe proteins. Dual-luciferase reporter gene system was employed to validate the binding sites of miR-133a-3p and 3'UTR regions of IGF1R mRNA. Immunohistochemistry (IHC) was used to determine the expressions of Ki-67 in mice tumor tissues. KEY FINDINGS Bufothionine inhibited cell viability, triggered ER stress and promoted ROS production in GC cells, and both ER stress inhibitor Salburinal (Sal) and ROS scavenger (NAC) abrogated Bufothionine induced GC cell death. Besides, miR-133a-3p was upregulated by Bufothionine, and Bufothionine-induced cell death was enhanced by miR-133a-3p overexpression while alleviated by miR-133a-3p knockdown. Furthermore, miR-133a-3p inactivated PI3K/Akt signal pathway by sponging IGF1R, and Bufothionine inhibited insulin-like growth factor 1 receptor (IGF1R) and inactivated PI3K/Akt cascade by upregulating miR-133a-3p. Notably, the promoting effects of overexpressed miR-133a-3p on Bufothionine-induced GC cell death were abrogated by overexpressing IGF1R, and aggravated by the PI3K/Akt cascade inhibitor (LY294002). SIGNIFICANCE Bufothionine promoted GC cell death by triggering miR-133a-3p/IGF1R/PI3K/Akt axis mediated ER stress and ROS production.
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Affiliation(s)
- Zhi-Hao Hu
- The Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Guo-Jun Wang
- The Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.
| | - Rui-Xin Li
- The Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Tian-Yu Zhu
- The Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Zhuo-Yin Wang
- The Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Heng-Xuan Ding
- The Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Xiu-Mei Hu
- The Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
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Chang CY, Pan PH, Li JR, Ou YC, Wang JD, Liao SL, Chen WY, Wang WY, Chen CJ. Aspirin Induced Glioma Apoptosis through Noxa Upregulation. Int J Mol Sci 2020; 21:ijms21124219. [PMID: 32545774 PMCID: PMC7352791 DOI: 10.3390/ijms21124219] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 02/07/2023] Open
Abstract
Clinically, high cyclooxygenase-2 expression in malignant glioma correlates well with poor prognosis and the use of aspirin is associated with a reduced risk of glioma. To extend the current understanding of the apoptotic potential of aspirin in most cell types, this study provides evidence showing that aspirin induced glioma cell apoptosis and inhibited tumor growth, in vitro and in vivo. We found that the human H4 glioma cell-killing effects of aspirin involved mitochondria-mediated apoptosis accompanied by endoplasmic reticulum (ER) stress, Noxa upregulation, Mcl-1 downregulation, Bax mitochondrial distribution and oligomerization, and caspase 3/caspase 8/caspase 9 activation. Genetic silencing of Noxa or Bax attenuated aspirin-induced viability loss and apoptosis, while silencing Mcl-1 augmented the effects of aspirin. Data from genetic and pharmacological studies revealed that the axis of ER stress comprised an apoptotic cascade leading to Noxa upregulation and apoptosis. The apoptotic programs and mediators triggered by aspirin in H4 cells were duplicated in human U87 glioma cell line as well as in tumor-bearing BALB/c nude mice. The involvement of ER stress in indomethacin-induced Mcl-1 downregulation was reported in our previous study on glioma cells. Therefore, the aforementioned phenomena indicate that ER stress may be a valuable target for intervention in glioma apoptosis.
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Affiliation(s)
- Cheng-Yi Chang
- Department of Surgery, Feng Yuan Hospital, Taichung City 420, Taiwan;
| | - Ping-Ho Pan
- Department of Pediatrics, Tungs’ Taichung Metro Harbor Hospital, Taichung City 435, Taiwan;
- Department of Veterinary Medicine, National Chung Hsing University, Taichung City 402, Taiwan;
| | - Jian-Ri Li
- Division of Urology, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
| | - Yen-Chuan Ou
- Department of Urology, Tungs’ Taichung Metro Harbor Hospital, Taichung City 435, Taiwan;
| | - Jiaan-Der Wang
- Children’s Medical Center, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
- Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung City 407, Taiwan
| | - Su-Lan Liao
- Department of Medical Research, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
| | - Wen-Ying Chen
- Department of Veterinary Medicine, National Chung Hsing University, Taichung City 402, Taiwan;
| | - Wen-Yi Wang
- Department of Nursing, HungKuang University, Taichung City 433, Taiwan;
| | - Chun-Jung Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung City 404, Taiwan
- Ph.D. Program in Translational Medicine, College of Life Sciences, National Chung Hsing University, Taichung City 402, Taiwan
- Correspondence: ; Tel.: +886-4-23592525 (ext. 4022)
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Markouli M, Strepkos D, Papavassiliou AG, Piperi C. Targeting of endoplasmic reticulum (ER) stress in gliomas. Pharmacol Res 2020; 157:104823. [PMID: 32305494 DOI: 10.1016/j.phrs.2020.104823] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/29/2020] [Accepted: 04/06/2020] [Indexed: 12/11/2022]
Abstract
Gliomas remain a group of malignant brain tumors with dismal prognosis and limited treatment options with molecular mechanisms being constantly investigated. The past decade, extracellular stress and intracellular DNA damage have been shown to disturb proteostasis leading to Endoplasmic Reticulum (ER) stress that is implicated in the regulation of gene expression and the pathogenesis of several tumor types, including gliomas. Upon ER stress induction, neoplastic cells activate the adaptive mechanism of unfolded protein response (UPR), an integrated signaling system that either restores ER homeostasis or induces cell apoptosis. Recently, the manipulation of the UPR has emerged as a new therapeutic target in glioma treatment. General UPR activators or selective GRP78, ATF6 and PERK inducers have been detected to modulate cell proliferation and induce apoptosis of glioma cells. At the same time, target-specific UPR inhibitors and small molecule proteostasis disruptors, work in reverse to increase misfolded proteins and cause a dysregulation in protein maturation and sorting, thus preventing the growth of neoplastic cells. Herein, we discuss the pathogenic implication of ER stress in gliomas onset and progression, providing an update on the current UPR modifying agents that can be potentially used in glioma treatment.
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Affiliation(s)
- Mariam Markouli
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Dimitrios Strepkos
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Athanasios G Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece.
| | - Christina Piperi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece.
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Chen Y, Li N, Wang H, Wang N, Peng H, Wang J, Li Y, Liu M, Li H, Zhang Y, Wang Z. Amentoflavone suppresses cell proliferation and induces cell death through triggering autophagy-dependent ferroptosis in human glioma. Life Sci 2020; 247:117425. [PMID: 32057904 DOI: 10.1016/j.lfs.2020.117425] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 01/27/2020] [Accepted: 02/09/2020] [Indexed: 01/07/2023]
Abstract
AIMS Glioma is the most common type of malignant tumor of the nervous system, and aggressiveness and recurrence are major obstacles for treatment. This study is designed to explore the effects of amentoflavone (AF) on glioma, and to investigate the underlying mechanism of the anti-cancer activities of AF. METHODS Cell morphology was recorded under microscopy. Cell viability and cell death ratio were determined by CCK-8 assay and lactate dehydrogenase (LDH) release assay, respectively. Cell cycle progression was assessed by flow cytometry. The levels of iron, MDA (malondialdehyde), lipid ROS, and GSH (reduced glutathione) were assessed by ELISA kit. The cycle-related proteins, ferroptosis-related protein, autophagy-related protein, and the phosphorylation of AMPK, mTOR and p70S6K were analyzed by western blotting. The autophagic flux was observed by transfecting cells with mRFP-GFP-LC3 plasmids. The xenograft murine models were established to analyze the effects of amentoflavone in vivo. The immunohistochemistry assay was performed to analyze the expression of LC3B, Beclin1, ATG5, ATG7, and ferritin heavy chain (FTH). RESULTS Our results showed that AF treatment led to reduction in cell viability and cell death. In addition, AF was found to block cell cycle progression in a dose-dependent manner in vitro. Following treatment with AF, the intracellular levels of iron, MDA, and lipid OS were increased, and the levels of GSH and the mitochondrial membrane potential were reduced. In addition, our results showed that AF promoted the autophagic by regulating autophagy-relevant proteins. Our results also showed that the autophagy-induction by AF was associated with regulation of AMPK/mTOR signaling. Mechanistically, the inhibition effects of AF on glioma cell were reversed by DFO, ferreostatin-1 as well as upregulation of FTH. Meanwhile, the FTH levels were increased by compound C and knockdown of ATG7. Moreover, both autophagy inhibitor Baf A1 and knockdown of ATG7 were able to compromising AF-induce ferroptosis and cell death. In vivo, the tumor growth was suppressed by AF in a dose-dependent manner. The level of MDA in the tumor tissue was increased while the level of GSH in tumor tissue was decreased by AF in a dose-dependent manner. Furthermore, the expression of LC3B, Beclin1, ATG5, ATG7 were increased, and the expression of FTH were decreased by AF in a dose-dependent manner in vivo. Conclusion These results demonstrate that AF triggered ferroptosis in autophagy-dependent manner. Our results suggest that AF has the potential to be considered as a novel treatment agent in glioma.
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Affiliation(s)
- Yan Chen
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Ning Li
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Haijing Wang
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Ningning Wang
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Hui Peng
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jing Wang
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yihong Li
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Mingdi Liu
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Hui Li
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yu Zhang
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Zhaohui Wang
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China.
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Chang CY, Li JR, Wu CC, Wang JD, Liao SL, Chen WY, Wang WY, Chen CJ. Endoplasmic Reticulum Stress Contributes to Indomethacin-Induced Glioma Apoptosis. Int J Mol Sci 2020; 21:ijms21020557. [PMID: 31952288 PMCID: PMC7013513 DOI: 10.3390/ijms21020557] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/07/2020] [Accepted: 01/14/2020] [Indexed: 02/07/2023] Open
Abstract
The dormancy of cellular apoptotic machinery has been highlighted as a crucial factor in therapeutic resistance, recurrence, and poor prognosis in patients with malignancy, such as malignant glioma. Increasing evidence indicates that nonsteroidal anti-inflammatory drugs (NSAIDs) confer chemopreventive effects, and indomethacin has been shown to have a novel chemotherapeutic application targeting glioma cells. To extend these findings, herein, we studied the underlying mechanisms of apoptosis activation caused by indomethacin in human H4 and U87 glioma cells. We found that the glioma cell-killing effects of indomethacin involved both death receptor- and mitochondria-mediated apoptotic cascades. Indomethacin-induced glioma cell apoptosis was accompanied by a series of biochemical changes, including reactive oxygen species generation, endoplasmic reticulum (ER) stress, apoptosis signal-regulating kinase-1 (Ask1) activation, p38 hyperphosphorylation, protein phosphatase 2A (PP2A) activation, Akt dephosphorylation, Mcl-1 and FLICE-inhibiting protein (FLIP) downregulation, Bax mitochondrial distribution, and caspases 3/caspase 8/caspase 9 activation. Data on pharmacological inhibition related to oxidative stress, ER stress, free Ca2+, and p38 revealed that the axis of oxidative stress/ER stress/Ask1/p38/PP2A/Akt comprised an apoptotic cascade leading to Mcl-1/FLIP downregulation and glioma apoptosis. Since indomethacin is an emerging choice in chemotherapy and its antineoplastic effects have been demonstrated in glioma tumor-bearing models, the findings further strengthen the argument for turning on the aforementioned axis in order to activate the apoptotic machinery of glioma cells.
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Affiliation(s)
- Cheng-Yi Chang
- Department of Surgery, Feng Yuan Hospital, Taichung City 420, Taiwan;
| | - Jian-Ri Li
- Division of Urology, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
| | - Chih-Cheng Wu
- Department of Anesthesiology, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
- Department of Financial Engineering, Providence University, Taichung City 433, Taiwan
- Department of Data Science and Big Data Analytics, Providence University, Taichung City 433, Taiwan
| | - Jiaan-Der Wang
- Children’s Medical Center, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
- Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung City 407, Taiwan
| | - Su-Lan Liao
- Department of Medical Research, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
| | - Wen-Ying Chen
- Department of Veterinary Medicine, National Chung Hsing University, Taichung City 402, Taiwan;
| | - Wen-Yi Wang
- Department of Nursing, HungKuang University, Taichung City 433, Taiwan;
| | - Chun-Jung Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung City 407, Taiwan;
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung City 404, Taiwan
- Correspondence: ; Tel.: +886-4-23592525 (ext. 4022)
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