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Li N, Xu J, Yan X, Liu Q, Zhang M. TROP2 promotes the proliferation of triple-negative breast cancer cells via calcium ion-dependent ER stress signaling pathway. Cell Biochem Biophys 2024; 82:2205-2216. [PMID: 38816653 DOI: 10.1007/s12013-024-01327-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2024] [Indexed: 06/01/2024]
Abstract
OBJECTIVE To explore the molecular mechanisms of tumor-associated calcium signal transduction factor 2 (TROP2) affecting the occurrence and development of triple-negative breast cancer (TNBC). METHODS The TCGA database, immunohistochemical staining, and qRT-PCR were used to analyze the expression of TROP2 in TNBC tissues and cells. The protein expressions of TROP2 and inositol 1,4,5-trisphosphate receptor (IP3R) after TROP2 knockdown were detected by western blot (WB). Cell proliferation was detected by CCK8 and colony formation assay, Annexin V-APC/PI flow cytometry was used to detect apoptosis, and intracellular calcium ion (Ca2+) was detected by flow cytometry with Fura 2-AM fluorescent probe. Finally, the morphological changes of the endoplasmic reticulum (ER) were observed by transmission electron microscopy, and the expression of ER stress (ERS)-related proteins was detected by WB and immunofluorescence staining. RESULTS TROP2 was up-regulated in TNBC tumor tissues and cells. Silencing TROP2 decreased the proliferation rate and clone formation number, and increased the apoptosis rate and the Ca2+ level in TNBC cells. These phenomena were reversed after the addition of 2-APB. In addition, after TROP2 knockdown, the expressions of IP3R and ERS-related proteins were up-regulated, the ER was cystic dilated, and ERS was activated. And the addition of 2-APB significantly inhibited the activation of ERS induced by TROP2 knockdown. CONCLUSION TROP2 regulated the proliferation and apoptosis of TNBC cells through a Ca2+-dependent ERS signaling pathway.
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Affiliation(s)
- Ning Li
- Department of Breast Surgery, Changzhi People's Hospital, Changzhi, 046000, China
| | - Jianzhong Xu
- Department of Breast Surgery, Changzhi People's Hospital, Changzhi, 046000, China
| | - Xi Yan
- Department of Pharmacy, Changzhi People's Hospital, Changzhi, 046000, China
| | - Qing Liu
- Department of Emergency, Changzhi People's Hospital, Changzhi, 046000, China
| | - Mingqi Zhang
- Department of Breast Surgery, Changzhi People's Hospital, Changzhi, 046000, China.
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2
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Zhao D, Zhang X, Bian Y, Meng L, Wu Y, Ma Y, Li C, Wang J, Fu Z, Dai J, Yin D, Lin S, Hu J. Taurine reduces apoptosis mediated by endoplasmic reticulum stress in islet β-cells induced by high-fat and -glucose diets. Food Chem Toxicol 2023; 175:113700. [PMID: 36863558 DOI: 10.1016/j.fct.2023.113700] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 02/14/2023] [Accepted: 02/27/2023] [Indexed: 03/02/2023]
Abstract
Poor eating habits, especially high-fat and -glucose diets intake, can lead to endoplasmic reticulum (ER) stress in islet β-cells, insulin resistance, and islet β-cell dysfunction and cause islet β-cell apoptosis, which leads to type 2 diabetes mellitus (T2DM). Taurine is a crucial amino acid in the human body. In this study, we aimed to explore the mechanism through which taurine reduces glycolipid toxicity. INS-1 islet β-cell lines were cultured with a high concentration of fat and glucose. SD rats were fed a high-fat and -glucose diet. MTS, Transmission electron microscopy, Flow cytometry, Hematoxylin-eosin, TUNEL, Western blotting analysis and other methods were used to detect relevant indicators. The research found that taurine increases the cell activity, reduces the apoptosis rate, alleviates the structural changes of ER under high-fat and -glucose exposure models. In addition, taurine improves blood lipid content and islets pathological changes, regulates the relative protein expression in ER stress and apoptosis, increases the insulin sensitivity index (HOMA-IS), and reduces the insulin resistance index (HOMAC-IR) of SD rats fed with a high-fat and -glucose diet.
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Affiliation(s)
- Dongdong Zhao
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Xiaozhou Zhang
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Yongxin Bian
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Lu Meng
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Yutong Wu
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Yidi Ma
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Chen Li
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Jingjing Wang
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Zizheng Fu
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Jingyuan Dai
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Deqi Yin
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Shumei Lin
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Jianmin Hu
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, China.
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Li Y, Orahoske CM, Urmetz SM, Zhang W, Huang Y, Gan C, Su B. Identification of estrogen receptor down-regulators for endocrine resistant breast cancer. J Steroid Biochem Mol Biol 2022; 224:106162. [PMID: 35932957 DOI: 10.1016/j.jsbmb.2022.106162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 11/17/2022]
Abstract
Resistance to endocrine therapies remains an impediment for the treatment of estrogen receptor (ER) positive breast cancer. ER down regulator Fulvestrant has showed great activity to overcome the endocrine resistance. However, Fulvestrant has poor bioavailability due to the hydrophobicity. Identification of novel ER down regulator is still important. Compounds 172 and 183 are two steroidal compounds with androgen scaffold but significantly down regulated ER in multiple breast cancer cell lines. RT-PCR results indicated that both compounds did not affect ER gene expression. Proteasome inhibitor MG132 could attenuate ER down regulation effect of the compounds, suggesting that the ER down regulation was via ubiquitin-proteasomal pathway. Furthermore, compounds 172 and 183 could downregulate ER in endocrine resistant breast cancer cell model long term estrogen deprivation (LTED) MCF-7 cells. Hydrophobicity of compounds 172 and 183 were determined and showed improved solubility compared to Fulvestrant. All these results suggested that compounds 172 and 183 could be potential lead compounds for drug development for the treatment of endocrine resistance breast cancer.
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Affiliation(s)
- Yaxin Li
- Department of Chemistry, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Ave., Cleveland, OH 44115, USA
| | - Cody M Orahoske
- Department of Chemistry, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Ave., Cleveland, OH 44115, USA
| | - Shannon M Urmetz
- Department of Chemistry, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Ave., Cleveland, OH 44115, USA
| | - Wenjing Zhang
- Department of Chemistry, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Ave., Cleveland, OH 44115, USA
| | - Yanmin Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Material, Nanning Normal University, Nanning 530001, China
| | - Chunfang Gan
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Material, Nanning Normal University, Nanning 530001, China.
| | - Bin Su
- Department of Chemistry, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Ave., Cleveland, OH 44115, USA.
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4
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Liao L, Duan L, Guo Y, Zhou B, Xu Q, Zhang C, Liu W, Liu W, Liu Z, Hu J, Chen J, Lu J. TRIM46 upregulates Wnt/β-catenin signaling by inhibiting Axin1 to mediate hypoxia-induced epithelial-mesenchymal transition in HK2 cells. Mol Cell Biochem 2022; 477:2829-2839. [PMID: 35670901 DOI: 10.1007/s11010-022-04467-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 05/02/2022] [Indexed: 10/18/2022]
Abstract
Hypoxia can cause Epithelial-mesenchymal transition (EMT) in renal tubular cells, and in turn, renal fibrosis. We tested the expression of TRIM46, a member of tripartite motif-containing (TRIM) family proteins, and mesenchymal markers under hypoxia. Our results showed that hypoxia significantly enhanced expression of TRIM46 in HK2 human renal proximal tubular epithelial cells. Our data further showed that hypoxia led to upregulated expression of mesenchymal markers including α-smooth muscle actin, vimentin, and Snail, and downregulated expression of epithelial marker E-cadherin, coupled with an increased abundance of nuclear β-catenin. However, such effects were reversed when TRIM46 expression was knocked down. TRIM46 overexpression had similar effects as hypoxia exposure, and such effects were reversed when cells were treated with XAV-939, a selective inhibitor for β-catenin. Furthermore, we found that TRIM46 promoted ubiquitination and proteasomal degradation of Axin1 protein, a robust negative regulator of Wnt/β-catenin signaling activity. Finally, increased TRIM46 coupled with decreased Axin1 was observed in a rat renal fibrosis model. These data suggest a novel mechanism contributing to EMT that mediates hypoxia-induced renal fibrosis. Our results suggest that selectively inhibiting this pathway that activates fibrosis in human kidney may lead to development of a novel therapeutic approach for managing this disease.
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Affiliation(s)
- Lin Liao
- Department of Nephrology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road in Pudong New District, Shanghai, 200137, China
| | - Lianxiang Duan
- Department of Nephrology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road in Pudong New District, Shanghai, 200137, China
| | - Yue Guo
- Department of Nephrology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road in Pudong New District, Shanghai, 200137, China
| | - Baojuan Zhou
- Department of Nephrology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road in Pudong New District, Shanghai, 200137, China
| | - Qiming Xu
- Department of Nephrology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road in Pudong New District, Shanghai, 200137, China
| | - Chuanfu Zhang
- Department of Nephrology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road in Pudong New District, Shanghai, 200137, China
| | - Weiwei Liu
- Department of Nephrology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road in Pudong New District, Shanghai, 200137, China
| | - Wenrui Liu
- Department of Nephrology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road in Pudong New District, Shanghai, 200137, China
| | - Ziyang Liu
- Department of Nephrology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road in Pudong New District, Shanghai, 200137, China
| | - Jing Hu
- Department of Nephrology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road in Pudong New District, Shanghai, 200137, China
| | - Jie Chen
- Department of Nephrology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road in Pudong New District, Shanghai, 200137, China.
| | - Jianrao Lu
- Department of Nephrology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, No.358 Datong Road in Pudong New District, Shanghai, 200137, China.
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Yoshida T, Yamasaki K, Tadagaki K, Kuwahara Y, Matsumoto A, Sofovic AE, Kondo N, Sakai T, Okuda T. Tumor necrosis factor‑related apoptosis‑inducing ligand is a novel transcriptional target of runt‑related transcription factor 1. Int J Oncol 2021; 60:6. [PMID: 34958111 PMCID: PMC8727134 DOI: 10.3892/ijo.2021.5296] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 11/23/2021] [Indexed: 11/26/2022] Open
Abstract
Runt-related transcription factor 1 (RUNX1), which is also known as acute myeloid leukemia 1 (AML1), has been frequently found with genomic aberrations in human leukemia. RUNX1 encodes a transcription factor that can regulate the expression of hematopoietic genes. In addition, tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) performs an important function for malignant tumors in immune surveillance. However, the regulatory mechanism of TRAIL expression remain to be fully elucidated. In the present study, tetradecanoylphorbol 13-acetate-treated megakaryocytic differentiated K562 cells was used to examine the effect of RUNX1 on TRAIL expression. Luciferase assay series of TRAIL promoters for the cells co-transfected with RUNX1 and core-binding factor β (CBFβ) expression vectors were performed to evaluate the nature of TRAIL transcriptional regulation. Electrophoresis mobility shift assay of the RUNX1 consensus sequence of the TRAIL promoter with recombinant RUNX1 and CBFβ proteins was also performed. BloodSpot database analysis for TRAIL expression in patients with acute myeloid leukemia were performed. The expression of TRAIL, its receptor Death receptor 4 and 5 and RUNX1 in K562 cells transfected with the RUNX1 expression vector and RUNX1 siRNA were evaluated by reverse transcription-quantitative PCR (RT-qPCR). TRAIL and RUNX1-ETO expression was also measured in Kasumi-1 cells transfected with RUNX1-ETO siRNA and in KG-1 cells transfected with RUNX1-ETO expression plasmid, both by RT-qPCR. Cell counting, lactate dehydrogenase assay and cell cycle analysis by flow cytometry were performed on Kasumi-1, KG-1, SKNO-1 and K562 cells treated with TRAIL and HDAC inhibitors sodium butyrate or valproic acid. The present study demonstrated that RUNX1 is a transcriptional regulator of TRAIL. It was initially found that the induction of TRAIL expression following the megakaryocytic differentiation of human leukemia cells was RUNX1-dependent. Subsequently, overexpression of RUNX1 was found to increase TRAIL mRNA expression by activating its promoter activity. Additional analyses revealed that RUNX1 regulated the expression of TRAIL in an indirect manner, because RUNX1 retained its ability to activate this promoter following the mutation of all possible RUNX1 consensus sites. Furthermore, TRAIL expression was reduced in leukemia cells carrying the t(8;21) translocation, where the RUNX1-ETO chimeric protein interfere with normal RUNX1 function. Exogenous treatment of recombinant TRAIL proteins was found to induce leukemia cell death. To conclude, the present study provided a novel mechanism, whereby TRAIL is a target gene of RUNX1 and TRAIL expression was inhibited by RUNX1-ETO. These results suggest that TRAIL is a promising agent for the clinical treatment of t(8;21) AML.
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Affiliation(s)
- Tatsushi Yoshida
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi‑Hirokoji, Kamigyo‑ku, Kyoto 602‑8566, Japan
| | - Kenta Yamasaki
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi‑Hirokoji, Kamigyo‑ku, Kyoto 602‑8566, Japan
| | - Kenjiro Tadagaki
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi‑Hirokoji, Kamigyo‑ku, Kyoto 602‑8566, Japan
| | - Yasumichi Kuwahara
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi‑Hirokoji, Kamigyo‑ku, Kyoto 602‑8566, Japan
| | - Akifumi Matsumoto
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi‑Hirokoji, Kamigyo‑ku, Kyoto 602‑8566, Japan
| | - Adèm Ejub Sofovic
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi‑Hirokoji, Kamigyo‑ku, Kyoto 602‑8566, Japan
| | - Noriko Kondo
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi‑Hirokoji, Kamigyo‑ku, Kyoto 602‑8566, Japan
| | - Toshiyuki Sakai
- Department of Drug Discovery Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi‑Hirokoji, Kamigyo‑ku, Kyoto 602‑8566, Japan
| | - Tsukasa Okuda
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi‑Hirokoji, Kamigyo‑ku, Kyoto 602‑8566, Japan
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6
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Endoplasmic reticulum stress: Multiple regulatory roles in hepatocellular carcinoma. Biomed Pharmacother 2021; 142:112005. [PMID: 34426262 DOI: 10.1016/j.biopha.2021.112005] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/25/2021] [Accepted: 08/01/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Endoplasmic reticulum (ER) stress is a basic cellular stress response that maintains cellular protein homeostasis under endogenous or exogenous stimuli, which depends on the stimulus, its intensity, and action time. The ER produces a corresponding cascade reaction for crosstalk of adaptive and/or pro-death regulation with other organelles. Hepatocellular carcinoma(HCC) is one of the most common malignant solid tumors with an extremely poor prognosis. Viral hepatitis infection, cirrhosis, and steatohepatitis are closely related to the occurrence and development of HCC, and ER stress has gradually been shown to be a major mechanism. Moreover, an increasing need for protein and lipid products and relative deficiencies of oxygen and nutrients for rapid proliferation and endoplasmic reticulum stress are undoubtedly involved. Therefore, to fully and comprehensively understand the regulatory role of endoplasmic reticulum stress in the occurrence and progression of HCC is of vital importance to explore its pathogenesis and develop novel anti-cancer strategies. METHODOLOGY We searched for relevant publications in the PubMed databases using the keywords "Endoplasmic reticulum stress", "hepatocellular carcinoma" in last five years,and present an overview of the current knowledge that links ER stress and HCC, which includes carcinogenesis, progression, and anti-cancer strategies, and propose directions of future research. RESULT ER stress were confirmed to be multiple regulators or effectors of cancer, which also be confirmed to drive tumorigenesis and progression of HCC. Targeting ER stress signaling pathway and related molecules could play a critical role for anti-HCC and has become a research hotspot for anti-cancer in recent years. CONCLUSION ER stress are critical for the processes of the tumorigenesis and progression of tumors. For HCC, ER stress was associated with tumorigenesis, development, metastasis, angiogenesis and drug resistance, targeting ER stress has emerged as a potential anti-tumor strategy.
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7
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Proteasome inhibition triggers the formation of TRAIL receptor 2 platforms for caspase-8 activation that accumulate in the cytosol. Cell Death Differ 2021; 29:147-155. [PMID: 34354257 PMCID: PMC8738721 DOI: 10.1038/s41418-021-00843-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/19/2021] [Accepted: 07/25/2021] [Indexed: 11/24/2022] Open
Abstract
Cancer cells that are resistant to Bax/Bak-dependent intrinsic apoptosis can be eliminated by proteasome inhibition. Here, we show that proteasome inhibition induces the formation of high molecular weight platforms in the cytosol that serve to activate caspase-8. The activation complexes contain Fas-associated death domain (FADD) and receptor-interacting serine/threonine-protein kinase 1 (RIPK1). Furthermore, the complexes contain TRAIL-receptor 2 (TRAIL-R2) but not TRAIL-receptor 1 (TRAIL-R1). While RIPK1 inhibition or depletion did not affect proteasome inhibitor-induced cell death, TRAIL-R2 was found essential for efficient caspase-8 activation, since the loss of TRAIL-R2 expression abrogated caspase processing, significantly reduced cell death, and promoted cell re-growth after drug washout. Overall, our study provides novel insight into the mechanisms by which proteasome inhibition eliminates otherwise apoptosis-resistant cells, and highlights the crucial role of a ligand-independent but TRAIL-R2-dependent activation mechanism for caspase-8 in this scenario.
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8
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Kalb D, Vo HD, Adikari S, Hong-Geller E, Munsky B, Werner J. Visualization and modeling of inhibition of IL-1β and TNF-α mRNA transcription at the single-cell level. Sci Rep 2021; 11:13692. [PMID: 34211022 PMCID: PMC8249620 DOI: 10.1038/s41598-021-92846-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 06/11/2021] [Indexed: 11/29/2022] Open
Abstract
IL-1β and TNF-α are canonical immune response mediators that play key regulatory roles in a wide range of inflammatory responses to both chronic and acute conditions. Here we employ an automated microscopy platform for the analysis of messenger RNA (mRNA) expression of IL-1β and TNF-α at the single-cell level. The amount of IL-1β and TNF-α mRNA expressed in a human monocytic leukemia cell line (THP-1) is visualized and counted using single-molecule fluorescent in-situ hybridization (smFISH) following exposure of the cells to lipopolysaccharide (LPS), an outer-membrane component of Gram-negative bacteria. We show that the small molecule inhibitors MG132 (a 26S proteasome inhibitor used to block NF-κB signaling) and U0126 (a MAPK Kinase inhibitor used to block CCAAT-enhancer-binding proteins C/EBP) successfully block IL-1β and TNF-α mRNA expression. Based upon this single-cell mRNA expression data, we screened 36 different mathematical models of gene expression, and found two similar models that capture the effects by which the drugs U0126 and MG132 affect the rates at which the genes transition into highly activated states. When their parameters were informed by the action of each drug independently, both models were able to predict the effects of the combined drug treatment. From our data and models, we postulate that IL-1β is activated by both NF-κB and C/EBP, while TNF-α is predominantly activated by NF-κB. Our combined single-cell experimental and modeling efforts show the interconnection between these two genes and demonstrates how the single-cell responses, including the distribution shapes, mean expression, and kinetics of gene expression, change with inhibition.
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Affiliation(s)
- Daniel Kalb
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Huy D Vo
- Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, CO, USA
| | - Samantha Adikari
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | | | - Brian Munsky
- Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, CO, USA.
| | - James Werner
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, USA.
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9
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Liu F, Yang W, Hu M, Zhang Y, Sun B, Yang H, Brosius J, Deng C. Constitutive activity of GPR26 regulated by ubiquitin-dependent degradation and its antitumor role. FEBS J 2021; 288:4655-4682. [PMID: 33577134 DOI: 10.1111/febs.15763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/13/2021] [Accepted: 02/11/2021] [Indexed: 02/05/2023]
Abstract
G protein-coupled receptors (GPCRs) play important roles in many physiological functions and numerous diseases. In addition to the classic ligand-stimulated receptor activity, an increasing number of studies have established that many GPCRs function constitutively in a receptor dose-dependent manner. Previous observations showed that following gene transfection, little or no protein was detectable for certain GPCRs (designated apparent state A), such as GPR26, GPR39, GPR78, GPR133, GPR139, BRS3, and LGR5, which showed strong constitutive activities. When we lysed cells in the immediate presence of western blot loading buffer, a significant increase of protein levels was detected (actual state B), which was much closer to the true expression levels under physiological conditions. GPR26 was chosen for further functional experiments as the actual state B. We identified an important ubiquitination site, K286, as well as the ubiquitin ligase E3 homologous to the E6-associated protein carboxyl terminus domain containing 3 interacting with GPR26. The pronounced differences in the protein expression and constitutive activity of GPR26 were a consequence of the ubiquitin-mediated rapid degradation mechanism. Furthermore, we identified in vitro and in vivo antitumor activity associated with high expression levels and constitutive activity of GPR26 in liver cancer cells. Hence, GPR26 could act as an antitumor gene for hepatocellular carcinoma. This study also represents the actual state B of a batch of GPCRs that actually play potentially important roles in physiological functions by their constitutive activity, which is controlled by rapid ubiquitin-dependent degradation.
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Affiliation(s)
- Fang Liu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, China
| | - Wei Yang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, China
| | - Minghui Hu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, China
| | - Yong Zhang
- West China - Washington Mitochondria and Metabolism Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Beicheng Sun
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, China
| | - Hao Yang
- Key Laboratory of Transplant Engineering and Immunology, MOH, West China Hospital, Sichuan University, Chengdu, China
| | - Juergen Brosius
- Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.,Institute of Experimental Pathology, ZMBE, University of Münster, Germany
| | - Cheng Deng
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, China
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10
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Li Y, Orahoske CM, Geldenhuys WJ, Bhattarai A, Sabbagh A, Bobba V, Salem FM, Zhang W, Shukla GC, Lathia JD, Wang B, Su B. Small-Molecule HSP27 Inhibitor Abolishes Androgen Receptors in Glioblastoma. J Med Chem 2021; 64:1570-1583. [PMID: 33523674 PMCID: PMC8284899 DOI: 10.1021/acs.jmedchem.0c01537] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Androgen receptor (AR) contributes to the progression of glioblastoma (GBM), and antiandrogen agents have the potential to be used for the treatment of GBM. However, AR mutation commonly happens in GBM, which makes the antiandrogen agents less effective. Heat shock 27 kDa protein (HSP27) is a well-documented chaperone protein to stabilize ARs. Inhibition of HSP27 results in AR degradation regardless of the mutation status of ARs, which makes HSP27 a good target to abolish ARs in GBM. Compound I is a HSP27 inhibitor that significantly induces AR degradation in GBM cells via the proteasomal pathway, and it selectively inhibits AR-overexpressed GBM cell growth with IC50 values around 5 nM. The compound also significantly inhibits in vivo GBM xenograft at 20 mg/kg and does not cause toxicity to mice up to 80 mg/kg. These results suggest that targeting HSP27 to induce AR degradation in GBM is a promising and novel treatment.
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Affiliation(s)
- Yaxin Li
- Department of Chemistry, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States
| | - Cody M Orahoske
- Department of Chemistry, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States
| | - Werner J Geldenhuys
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Morgantown, West Virginia 26506, United States
| | - Asmita Bhattarai
- Department of Biological, Geological, and Environmental Sciences, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States
| | - Abboud Sabbagh
- Department of Chemistry, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States
| | - Viharika Bobba
- Department of Chemistry, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States
| | - Fatma M Salem
- Department of Chemistry, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States
| | - Wenjing Zhang
- Department of Chemistry, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States
| | - Girish C Shukla
- Department of Biological, Geological, and Environmental Sciences, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States
| | - Justin D Lathia
- Department of Biological, Geological, and Environmental Sciences, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States
- Department of Molecular Medicine, Lerner Research Institute, Cleveland Clinic, and Case Comprehensive Cancer Center, Cleveland, Ohio 44195, United States
| | - Bingcheng Wang
- Rammelkamp Center for Research and Department of Medicine, MetroHealth Campus, Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, Ohio 44109, United States
| | - Bin Su
- Department of Chemistry, Center for Gene Regulation in Health and Disease, College of Sciences and Health Professions, Cleveland State University, 2121 Euclid Avenue, Cleveland, Ohio 44115, United States
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11
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Yang J, Kitami M, Pan H, Nakamura MT, Zhang H, Liu F, Zhu L, Komatsu Y, Mishina Y. Augmented BMP signaling commits cranial neural crest cells to a chondrogenic fate by suppressing autophagic β-catenin degradation. Sci Signal 2021; 14:14/665/eaaz9368. [PMID: 33436499 DOI: 10.1126/scisignal.aaz9368] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cranial neural crest cells (CNCCs) are a population of multipotent stem cells that give rise to craniofacial bone and cartilage during development. Bone morphogenetic protein (BMP) signaling and autophagy have been individually implicated in stem cell homeostasis. Mutations that cause constitutive activation of the BMP type I receptor ACVR1 cause the congenital disorder fibrodysplasia ossificans progressiva (FOP), which is characterized by ectopic cartilage and bone in connective tissues in the trunk and sometimes includes ectopic craniofacial bones. Here, we showed that enhanced BMP signaling through the constitutively activated ACVR1 (ca-ACVR1) in CNCCs in mice induced ectopic cartilage formation in the craniofacial region through an autophagy-dependent mechanism. Enhanced BMP signaling suppressed autophagy by activating mTORC1, thus blocking the autophagic degradation of β-catenin, which, in turn, caused CNCCs to adopt a chondrogenic identity. Transient blockade of mTORC1, reactivation of autophagy, or suppression of Wnt-β-catenin signaling reduced ectopic cartilages in ca-Acvr1 mutants. Our results suggest that BMP signaling and autophagy coordinately regulate β-catenin activity to direct the fate of CNCCs during craniofacial development. These findings may also explain why some patients with FOP develop ectopic bones through endochondral ossification in craniofacial regions.
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Affiliation(s)
- Jingwen Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China.,Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Megumi Kitami
- Department of Pediatrics, University of Texas Medical School at Houston, Houston, TX 77030, USA.,Graduate Program in Genes and Development, University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX 77030, USA
| | - Haichun Pan
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Masako Toda Nakamura
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Honghao Zhang
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Fei Liu
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Lingxin Zhu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China.,Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yoshihiro Komatsu
- Department of Pediatrics, University of Texas Medical School at Houston, Houston, TX 77030, USA. .,Graduate Program in Genes and Development, University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX 77030, USA
| | - Yuji Mishina
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI 48109, USA.
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12
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Xue X, Quan Y, Gong L, Gong X, Li Y. A review of the processed Polygonum multiflorum (Thunb.) for hepatoprotection: Clinical use, pharmacology and toxicology. JOURNAL OF ETHNOPHARMACOLOGY 2020; 261:113121. [PMID: 32693115 DOI: 10.1016/j.jep.2020.113121] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Polygonum multiflorum (Thunb.) (PMT) is a member of Polygonaceae. Traditional Chinese medicine considers that the processed PMT can tonify liver, nourish blood and blacken hair. In recent years, the processed PMT and its active ingredients have significant therapeutic effects on nonalcoholic fatty liver disease, alcoholic fatty liver disease, viral hepatitis, liver fibrosis and liver cancer. AIM OF THE STUDY The main purpose of this review is to provide a critical appraisal of the existing knowledge on the clinical application, hepatoprotective pharmacology and hepatotoxicity, it provides a comprehensive evaluation of the liver function of the processed PMT. MATERIALS AND METHODS A detailed literature search was conducted using various online search engines, such as Pubmed, Google Scholar, Mendeley, Web of Science and China National Knowledge Infrastructure (CNKI) database. The main active components of the processed PMT and the important factors in the occurrence and development of liver diseases are used as key words to carry out detailed literature retrieval. RESULTS In animal and cell models, the processed PMT and active components can treat various liver diseases, such as fatty liver induced by high-fat diet, liver injury and fibrosis induced by drugs, viral transfected hepatitis, hepatocellular carcinoma, etc. They can protect liver by regulating lipid metabolism related enzymes, resisting insulin resistance, decreasing the expression of inflammatory cytokines, inhibiting the activation of hepatic stellate cells, reducing generation of extracellular matrix, promoting cancer cell apoptosis and controlling the growth of tumor cells, etc. However, improperly using of the processed PMT can cause liver injury, which is associated with the standardization of processing, the constitution of the patients, the characteristics of the disease, and the administration of dosage and time. CONCLUSION The processed PMT can treat various liver diseases via reasonably using, and the active compounds (2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside, emodin, physcion, etc.) are promising candidate drugs for developing new liver protective agents. However, some components have a "toxic-effective" bidirectional effect, which should be used cautiously.
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Affiliation(s)
- Xinyan Xue
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine; Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education; National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Yunyun Quan
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine; Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education; National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Lihong Gong
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine; Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education; National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Xiaohong Gong
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine; Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education; National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China
| | - Yunxia Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine; Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education; National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu, 611137, China.
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13
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Kim SY, Hwang S, Choi MK, Park S, Nam KY, Kim I. Molecular mechanisms underlying the effects of the small molecule AMC-04 on apoptosis: Roles of the activating transcription factor 4-C/EBP homologous protein-death receptor 5 pathway. Chem Biol Interact 2020; 332:109277. [PMID: 33007289 DOI: 10.1016/j.cbi.2020.109277] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/31/2020] [Accepted: 09/28/2020] [Indexed: 12/20/2022]
Abstract
The unfolded protein response (UPR) is an emerging target pathway for cancer treatment owing to its ability to induce cell death. In our previous analysis of UPR-modulating small molecules, we had reported that piperazine oxalate derivative compounds (AMC-01-04) are able to promote increased phosphorylation of eukaryotic translation initiation factor-2 alpha (eIF2α). In this study, we found that AMC-04 induces apoptotic cell death via the activation of UPR in human breast and liver cancer cells. AMC-04 upregulated the expression of activating transcription factor-4 (ATF4)-C/EBP homologous protein (CHOP) and death receptor 5 (DR5) in cancer cells, as revealed by microarray analysis, small-interference RNA assay, and western blotting. From a mechanistic perspective, cytotoxic UPR pathway activation by AMC-04 is mediated by reactive oxygen species (ROS) and p38 mitogen-activated protein kinase (p38 MAPK) signaling. A chemical informatics approach predicted that AMC-04 modulates histone methyltransferase activity. Based on biochemical analysis, the activity of histone methyltransferases, including SUV39H1, SUV39H2, SETDB1, and EHMT1, was inhibited by AMC-04. Furthermore, chemical inhibition of the identified target proteins induced UPR activation and apoptotic cell death, suggesting that inhibition of histone methyltransferases is a promising strategy for cancer therapy. Taken together, we showed that the small molecule AMC-04 modulates epigenetic enzyme activity and mediates the link between cytotoxic UPR and histone modifications.
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Affiliation(s)
- So Young Kim
- Biomedical Research Center, ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, 05505, Republic of Korea
| | - Supyong Hwang
- Convergence Medicine Research Center (CREDIT), ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, 05505, Republic of Korea
| | - Min Kyung Choi
- Convergence Medicine Research Center (CREDIT), ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, 05505, Republic of Korea
| | - Sojung Park
- Convergence Medicine Research Center (CREDIT), ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, 05505, Republic of Korea
| | - Ky Youb Nam
- Pharosibio, Heungan Daero 427, Anyang, Gyeonggido, Republic of Korea.
| | - Inki Kim
- Convergence Medicine Research Center (CREDIT), ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, 05505, Republic of Korea; Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea.
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14
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Singh M, Kumari B, Yadav UCS. Regulation of oxidized LDL-induced inflammatory process through NLRP3 inflammasome activation by the deubiquitinating enzyme BRCC36. Inflamm Res 2019; 68:999-1010. [PMID: 31485755 DOI: 10.1007/s00011-019-01281-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/21/2019] [Accepted: 08/29/2019] [Indexed: 01/30/2023] Open
Abstract
OBJECTIVE Oxidized Low-Density Lipoprotein (oxLDL) is a well-established pro-inflammatory marker that activates the NLRP3 inflammasome. Ubiquitination plays an important role in modulating the stability and functions of various proteins. BRCC36 is a ubiquitin-modifying enzyme that plays a crucial role in protein stabilization and activation in the cytosol, but its role in OxLDL-induced NLRP3 inflammasome activation is not known. Here, we have investigated the role of deubiquitinating enzyme BRCC36 in regulating NLRP3 inflammasome during oxLDL stimulation. METHODS Raw 264.7 murine macrophages were stimulated with oxLDL and effect of BRCC36 deubiquitination activity was assessed by fluorometric assay, and protein expression was assessed by Western blotting. The level of IL-1β measured by ELISA and LDH activity as pyroptotic cell death marker was assessed by fluorometric assay. RESULTS The results showed that oxLDL increased the level of NLRP3 in macrophages and also the level of active caspase-1 and IL-1β. It also modulated the expression of deubiquitinating enzymes and caused pyroptotic cell death as indicated by LDH release. Inhibiting the proteasomal activity by MG132 and siRNA-mediated silencing of BRCC36 in macrophages potentially suppressed oxLDL-induced NLRP3 inflammasome activation and IL-1β secretion. Furthermore, the inhibition of proteasomal deubiquitinating activity with specific BRCC36 inhibitor G5 also reduced the inflammatory cell death. CONCLUSION Taken together, our study suggests that deubiquitinating enzyme BRCC36 inhibition could potentially suppress oxLDL-induced inflammatory process by inhibiting NLRP3 activation and resultant IL-1β secretion.
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Affiliation(s)
- Mohit Singh
- Metabolic Disorders and Inflammatory Pathologies Laboratory, School of Life Sciences, Central University of Gujarat, Sector-30, Gandhinagar, 382030, Gujarat, India
| | - Bhawna Kumari
- Metabolic Disorders and Inflammatory Pathologies Laboratory, School of Life Sciences, Central University of Gujarat, Sector-30, Gandhinagar, 382030, Gujarat, India
| | - Umesh C S Yadav
- Metabolic Disorders and Inflammatory Pathologies Laboratory, School of Life Sciences, Central University of Gujarat, Sector-30, Gandhinagar, 382030, Gujarat, India.
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15
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Zhu P, Verma A, Prasad T, Li Q. Expression and Function of Mas-Related G Protein-Coupled Receptor D and Its Ligand Alamandine in Retina. Mol Neurobiol 2019; 57:513-527. [PMID: 31392515 DOI: 10.1007/s12035-019-01716-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 07/19/2019] [Indexed: 12/21/2022]
Abstract
A local renin-angiotensin system (RAS) exists in the retina and plays a critical role in retinal neurovascular function. The protective axis of RAS comprising of angiotensin-converting enzyme 2 (ACE2)/angiotensin-(1-7) [Ang-(1-7)]/Mas receptor attenuate the deleterious actions of increased levels of angiotensin II (Ang II), the main effector peptide of RAS. A new peptide, alamandine, and its receptor Mas-related G protein-coupled receptor D (MrgD) have been recently identified that share structural and functional similarity to Ang-(1-7) and its receptor, Mas, establishing another new protective axis of RAS. Here, we examined the expression and cellular localization of MrgD in the retina, the effect of MrgD deficiency on mouse retinal structure and function, as well as the biological function of alamandine in cultured retinal cells. We showed that MrgD is expressed in the retinal neurons, retinal vasculature, Müller glial and RPE cells, similar to Mas receptor expression. MrgD-deficient mice did not exhibit gross change in retinal morphology and thickness; however, these mice did show a progressive decrease in both scotopic and photopic a-wave and b-wave amplitudes, and increase in retinal capillary loss with age compared to age-matched wild-type mice. In vitro studies in human retinal cells showed that alamandine attenuated the Ang II and LPS-induced increases in inflammatory cytokine gene expression, NF-κB activation, Ang II and hydrogen peroxide-induced production of reactive oxygen species, comparable to that mediated by Ang-(1-7). These results support the notion that alamandine/MrgD may represent another new protective axis of RAS in the retina exerting anti-oxidative and anti-inflammatory effects.
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Affiliation(s)
- Ping Zhu
- Department of Ophthalmology, College of Medicine, University of Florida, Gainesville, FL, 32610-0284, USA
| | - Amrisha Verma
- Department of Ophthalmology, College of Medicine, University of Florida, Gainesville, FL, 32610-0284, USA
| | - Tuhina Prasad
- Department of Ophthalmology, College of Medicine, University of Florida, Gainesville, FL, 32610-0284, USA
| | - Qiuhong Li
- Department of Ophthalmology, College of Medicine, University of Florida, Gainesville, FL, 32610-0284, USA.
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16
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Yang MH, Jung SH, Sethi G, Ahn KS. Pleiotropic Pharmacological Actions of Capsazepine, a Synthetic Analogue of Capsaicin, against Various Cancers and Inflammatory Diseases. Molecules 2019; 24:molecules24050995. [PMID: 30871017 PMCID: PMC6429077 DOI: 10.3390/molecules24050995] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 12/21/2022] Open
Abstract
Capsazepine is a synthetic analogue of capsaicin that can function as an antagonist of TRPV1. Capsazepine can exhibit diverse effects on cancer (prostate cancer, breast cancer, colorectal cancer, oral cancer, and osteosarcoma) growth and survival, and can be therapeutically used against other major disorders such as colitis, pancreatitis, malaria, and epilepsy. Capsazepine has been reported to exhibit pleiotropic anti-cancer effects against numerous tumor cell lines. Capsazepine can modulate Janus activated kinase (JAK)/signal transducer and activator of the transcription (STAT) pathway, intracellular Ca2+ concentration, and reactive oxygen species (ROS)-JNK-CCAAT/enhancer-binding protein homologous protein (CHOP) pathways. It can inhibit cell proliferation, metastasis, and induce apoptosis. Moreover, capsazepine can exert anti-inflammatory effects through the downregulation of lipopolysaccharide (LPS)-induced nuclear transcription factor-kappa B (NF-κB), as well as the blockage of activation of both transient receptor potential cation channel subfamily V member 1 (TRPV1) and transient receptor potential cation channel, subfamily A, and member 1 (TRPA1). This review briefly summarizes the diverse pharmacological actions of capsazepine against various cancers and inflammatory conditions.
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Affiliation(s)
- Min Hee Yang
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Korea.
| | - Sang Hoon Jung
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Korea.
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore.
| | - Kwang Seok Ahn
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Korea.
- Department of Science in Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
- Comorbidity Research Institute, College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
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17
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Elucidation for modulation of death receptor (DR) 5 to strengthen apoptotic signals in cancer cells. Arch Pharm Res 2019; 42:88-100. [DOI: 10.1007/s12272-018-01103-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/17/2018] [Indexed: 12/15/2022]
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18
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Yue D, Sun X. Ixazomib promotes CHOP-dependent DR5 induction and apoptosis in colorectal cancer cells. Cancer Biol Ther 2018; 20:284-294. [PMID: 30359552 DOI: 10.1080/15384047.2018.1529095] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Ixazomib (Ninlaro), a novel proteasome inhibitor, has been developed for the treatment of many cancers and has demonstrated anti-tumor efficacy against various malignancies. However, the mechanism of the anti-tumor effect of ixazomib in colorectal cancer (CRC) cells remains unclear. METHODS MTS and flow cytometry were performed to determine the effect of ixazomib on CRC cells. Western blotting and real-time RT-PCR were performed to detect ixazomib-induced DR5 upregulation. ChIP was performed to detect CHOP binding to DR5 promoter. Finally, xenograft experiments were carried out to measure the antitumor effect of ixazomib in vivo. RESULTS In this study, we revealed the mechanism by which ixazomib inhibits the growth of CRC cells. Our findings indicated that ixazomib treatment induces CHOP-dependent DR5 induction, irrespective of p53 status. Furthermore, DR5 is necessary for ixazomib-mediated apoptosis. Ixazomib also synergized with TRAIL to induce marked apoptosis via DR5 in CRC cells. CONCLUSIONS Our findings further suggested that ixazomib sensitizes TRAIL/death receptor signaling pathway-targeted CRC and suggested that DR5 induction could be a valuable indicator of ixazomib sensitivity.
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Affiliation(s)
- Dan Yue
- a Department of Laboratory Medicine , ShengJing Hospital of China Medical University , Shenyang , China
| | - Xun Sun
- b Department of Immunology , China Medical University , Shenyang , China
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19
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Kim SY, Hong M, Heo SH, Park S, Kwon TK, Sung YH, Oh Y, Lee S, Yi GS, Kim I. Inhibition of euchromatin histone-lysine N-methyltransferase 2 sensitizes breast cancer cells to tumor necrosis factor-related apoptosis-inducing ligand through reactive oxygen species-mediated activating transcription factor 4-C/EBP homologous protein-death receptor 5 pathway activation. Mol Carcinog 2018; 57:1492-1506. [PMID: 29964331 DOI: 10.1002/mc.22872] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 06/05/2018] [Accepted: 06/28/2018] [Indexed: 12/13/2022]
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has been characterized as an anti-cancer therapeutic agent with prominent cancer cell selectivity over normal cells. However, breast cancer cells are generally resistant to TRAIL, thus limiting its therapeutic potential. In this study, we found that BIX-01294, a selective inhibitor of euchromatin histone methyltransferase 2/G9a, is a strong TRAIL sensitizer in breast cancer cells. The combination of BIX-01294 and TRAIL decreased cell viability and led to an increase in the annexin V/propidium iodide-positive cell population, DNA fragmentation, and caspase activation. BIX-01294 markedly increased death receptor 5 (DR5) expression, while silencing of DR5 using small interfering RNAs abolished the TRAIL-sensitizing effect of BIX-01294. Specifically, BIX-01294 induced C/EBP homologous protein (CHOP)-mediated DR5 gene transcriptional activation and DR5 promoter activation was induced by upregulation of the protein kinase R-like endoplasmic reticulum kinase-mediated activating transcription factor 4 (ATF4). Moreover, inhibition of reactive oxygen species by N-acetyl-L-cysteine efficiently blocked BIX-01294-induced DR5 upregulation by inhibiting ATF4/CHOP expression, leading to diminished sensitization to TRAIL. These findings suggest that BIX-01294 sensitizes breast cancer cells to TRAIL by upregulating ATF4/CHOP-dependent DR5 expression with a reactive oxygen species-dependent manner. Furthermore, combination treatment with BIX-01294 and TRAIL suppressed tumor growth and induced apoptosis in vivo. In conclusion, we found that epigenetic regulation can contribute to the development of resistance to cancer therapeutics such as TRAIL, and further studies of unfolded protein responses and the associated epigenetic regulatory mechanisms may lead to the discovery of new molecular targets for effective cancer therapy.
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Affiliation(s)
- So Young Kim
- ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, Republic of Korea
| | - MiNa Hong
- ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, Republic of Korea
| | - Seung-Ho Heo
- Department of Convergence Medicine, ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, Republic of Korea
| | - Sojung Park
- ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, Republic of Korea
| | - Taeg Kyu Kwon
- Department of Immunology, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Young Hoon Sung
- ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, Republic of Korea.,Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Yumin Oh
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Seulki Lee
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Gwan-Su Yi
- Department of Bio and Brain Engineering, KAIST, Daejeon, Republic of Korea
| | - Inki Kim
- ASAN Institute for Life Sciences, ASAN Medical Center, Seoul, Republic of Korea.,Department of Convergence Medicine, University of Ulsan College of Medicine, Seoul, Republic of Korea
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20
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Allen JE, Kline CLB, Prabhu VV, Wagner J, Ishizawa J, Madhukar N, Lev A, Baumeister M, Zhou L, Lulla A, Stogniew M, Schalop L, Benes C, Kaufman HL, Pottorf RS, Nallaganchu BR, Olson GL, Al-Mulla F, Duvic M, Wu GS, Dicker DT, Talekar MK, Lim B, Elemento O, Oster W, Bertino J, Flaherty K, Wang ML, Borthakur G, Andreeff M, Stein M, El-Deiry WS. Discovery and clinical introduction of first-in-class imipridone ONC201. Oncotarget 2018; 7:74380-74392. [PMID: 27602582 PMCID: PMC5342060 DOI: 10.18632/oncotarget.11814] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 08/30/2016] [Indexed: 12/20/2022] Open
Abstract
ONC201 is the founding member of a novel class of anti-cancer compounds called imipridones that is currently in Phase II clinical trials in multiple advanced cancers. Since the discovery of ONC201 as a p53-independent inducer of TRAIL gene transcription, preclinical studies have determined that ONC201 has anti-proliferative and pro-apoptotic effects against a broad range of tumor cells but not normal cells. The mechanism of action of ONC201 involves engagement of PERK-independent activation of the integrated stress response, leading to tumor upregulation of DR5 and dual Akt/ERK inactivation, and consequent Foxo3a activation leading to upregulation of the death ligand TRAIL. ONC201 is orally active with infrequent dosing in animals models, causes sustained pharmacodynamic effects, and is not genotoxic. The first-in-human clinical trial of ONC201 in advanced aggressive refractory solid tumors confirmed that ONC201 is exceptionally well-tolerated and established the recommended phase II dose of 625 mg administered orally every three weeks defined by drug exposure comparable to efficacious levels in preclinical models. Clinical trials are evaluating the single agent efficacy of ONC201 in multiple solid tumors and hematological malignancies and exploring alternative dosing regimens. In addition, chemical analogs that have shown promise in other oncology indications are in pre-clinical development. In summary, the imipridone family that comprises ONC201 and its chemical analogs represent a new class of anti-cancer therapy with a unique mechanism of action being translated in ongoing clinical trials.
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Affiliation(s)
| | | | | | | | - Jo Ishizawa
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Avital Lev
- Fox Chase Cancer Center, Philadelphia, PA, USA
| | | | - Lanlan Zhou
- Fox Chase Cancer Center, Philadelphia, PA, USA
| | | | | | | | - Cyril Benes
- Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | | | | | | | - Gary L Olson
- Provid Pharmaceuticals, Monmouth Junction, NJ, USA
| | | | - Madeleine Duvic
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | | | - Mala K Talekar
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Bora Lim
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | | | - Joseph Bertino
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | - Keith Flaherty
- Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | - Michael L Wang
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | | | - Mark Stein
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
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21
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Hung CM, Liu LC, Ho CT, Lin YC, Way TD. Pterostilbene Enhances TRAIL-Induced Apoptosis through the Induction of Death Receptors and Downregulation of Cell Survival Proteins in TRAIL-Resistance Triple Negative Breast Cancer Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:11179-11191. [PMID: 29164887 DOI: 10.1021/acs.jafc.7b02358] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Tumor necrosis factor-related apoptosis-induced ligand (TRAIL) is nontoxic to normal cells and preferentially cytotoxic to cancer cells. Recent data suggest that malignant breast cancer cells often become resistant to TRAIL. Pterostilbene (PTER), a naturally occurring analogue of resveratrol found in blueberries, is known to induce cancer cells to undergo apoptosis. In the present study, we examined whether PTER affects TRAIL-induced apoptosis and its mechanism in TRAIL-resistant triple negative breast cancer (TNBC) cells. Our data indicated that PTER induced apoptosis (14.68 ± 3.78% for 40 μM PTER vs 1.98 ± 0.25% for control, p < 0.01) in TNBC cells and enhanced TRAIL-induced apoptosis in TRAIL-resistant TNBC cells (18.45 ± 4.65% for 40 μM PTER vs 29.38 ± 6.35% for combination of 40 μM PTER and 100 ng/mL TRAIL, p < 0.01). We demonstrated that PTER induced death receptors DR5 and DR4 as well as decreased decoy receptor DcR-1 and DcR-2 expression. PTER also decreased the antiapoptotic proteins c-FLIPS/L, Bcl-Xl, Bcl-2, survivin, and XIAP. PTER induced the cleavage of bid protein and caused proapoptotic Bax accumulation. Moreover, we found that PTER induced the expression of DR4 and DR5 through the reactive oxygen species (ROS)/ endoplasmic reticulum (ER) stress/ERK 1/2 and p38/C/EBP-homologous protein (CHOP) signaling pathways. Overall, our results showed that PTER potentiated TRAIL-induced apoptosis via ROS-mediated CHOP activation leading to the expression of DR4 and DR5.
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Affiliation(s)
- Chao-Ming Hung
- Department of General Surgery, E-Da Hospital, I-Shou University , Kaohsiung, Taiwan
- School of Medicine, I-Shou University , Kaohsiung, Taiwan
| | - Liang-Chih Liu
- Department of Surgery, China Medical University Hospital , Taichung, Taiwan
- School of Medicine, College of Medicine, China Medical University , Taichung, Taiwan
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University , New Brunswick, New Jersey 08901, United States
| | - Ying-Chao Lin
- Division of Neurosurgery, Buddhist Tzu Chi General Hospital, Taichung Branch , Taichung, Taiwan
- School of Medicine, Tzu Chi University , Hualien, Taiwan
- Department of Medical Imaging and Radiological Science, Central Taiwan University of Science and Technology , Taichung, Taiwan
| | - Tzong-Der Way
- Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University , Taichung, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University , Taichung, Taiwan
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22
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Chen PP, Ma XY, Lin Q, Xu HL, Shi HX, Zhang HY, Xiao J, Geng FN, Zhao YZ. Kangfuxin promotes apoptosis of gastric cancer cells through activating ER-stress and autophagy. Mol Med Rep 2017; 16:9043-9050. [DOI: 10.3892/mmr.2017.7716] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 09/21/2017] [Indexed: 11/06/2022] Open
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23
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Zingoni A, Fionda C, Borrelli C, Cippitelli M, Santoni A, Soriani A. Natural Killer Cell Response to Chemotherapy-Stressed Cancer Cells: Role in Tumor Immunosurveillance. Front Immunol 2017; 8:1194. [PMID: 28993779 PMCID: PMC5622151 DOI: 10.3389/fimmu.2017.01194] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 09/08/2017] [Indexed: 12/13/2022] Open
Abstract
Natural killer (NK) cells are innate cytotoxic lymphoid cells that actively prevent neoplastic development, growth, and metastatic dissemination in a process called cancer immunosurveillance. An equilibrium between immune control and tumor growth is maintained as long as cancer cells evade immunosurveillance. Therapies designed to kill cancer cells and to simultaneously sustain host antitumor immunity are an appealing strategy to control tumor growth. Several chemotherapeutic agents, depending on which drugs and doses are used, give rise to DNA damage and cancer cell death by means of apoptosis, immunogenic cell death, or other forms of non-apoptotic death (i.e., mitotic catastrophe, senescence, and autophagy). However, it is becoming increasingly clear that they can trigger additional stress responses. Indeed, relevant immunostimulating effects of different therapeutic programs include also the activation of pathways able to promote their recognition by immune effector cells. Among stress-inducible immunostimulating proteins, changes in the expression levels of NK cell-activating and inhibitory ligands, as well as of death receptors on tumor cells, play a critical role in their detection and elimination by innate immune effectors, including NK cells. Here, we will review recent advances in chemotherapy-mediated cellular stress pathways able to stimulate NK cell effector functions. In particular, we will address how these cytotoxic lymphocytes sense and respond to different types of drug-induced stresses contributing to anticancer activity.
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Affiliation(s)
- Alessandra Zingoni
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Cinzia Fionda
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Cristiana Borrelli
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy.,Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy
| | - Marco Cippitelli
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Angela Santoni
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy.,Neuromed I.R.C.C.S. - Istituto Neurologico Mediterraneo, Pozzilli, Italy
| | - Alessandra Soriani
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
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24
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Lim SC, Han SI. MDL-12330A potentiates TRAIL-induced apoptosis in gastric cancer cells through CHOP-mediated DR5 upregulation. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2017. [PMID: 28706453 DOI: 10.4196/kjpp.2017.21.4.397.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
MDL-12330A is a widely used adenylyl cyclase (AC) inhibitor that blocks AC/cAMP signaling. In this study, we demonstrated a novel antitumor activity of this drug in gastric carcinoma (GC) cell lines. In these GC cells, MDL-12330A reduced cell viability and induced cell death in a concentration-dependent manner. At a moderate concentration (~20 µM), MDL-12330A mainly induced apoptotic death whereas at concentrations greater than 20 µM, it increased non-apoptotic cell death. The induction of apoptosis was at least partially regulated by CHOP-mediated DR5 upregulation, as detected by immunoblotting and gene interference assays. More importantly, low concentrations of MDL-12330A effectively enhanced recombinant human tumor necrosis factor (TNF)-related apoptosis-inducing ligand (rhTRAIL)-induced apoptosis and clonogenicity in these gastric cancer cells. This study demonstrates a possible role of MDL-12330A as a potential sensitizer to TRAIL, and suggests a novel therapeutic strategy targeting gastric cancer cells.
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Affiliation(s)
- Sung-Chul Lim
- Department of Pathology, College of Medicine, Chosun University, Gwangju 61501, Korea
| | - Song Iy Han
- Division of Premedical Science, College of Medicine, Chosun University, Gwangju 61501, Korea
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25
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Lim SC, Han SI. MDL-12330A potentiates TRAIL-induced apoptosis in gastric cancer cells through CHOP-mediated DR5 upregulation. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2017; 21:397-405. [PMID: 28706453 PMCID: PMC5507778 DOI: 10.4196/kjpp.2017.21.4.397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/20/2017] [Accepted: 04/04/2017] [Indexed: 02/07/2023]
Abstract
MDL-12330A is a widely used adenylyl cyclase (AC) inhibitor that blocks AC/cAMP signaling. In this study, we demonstrated a novel antitumor activity of this drug in gastric carcinoma (GC) cell lines. In these GC cells, MDL-12330A reduced cell viability and induced cell death in a concentration-dependent manner. At a moderate concentration (~20 µM), MDL-12330A mainly induced apoptotic death whereas at concentrations greater than 20 µM, it increased non-apoptotic cell death. The induction of apoptosis was at least partially regulated by CHOP-mediated DR5 upregulation, as detected by immunoblotting and gene interference assays. More importantly, low concentrations of MDL-12330A effectively enhanced recombinant human tumor necrosis factor (TNF)-related apoptosis-inducing ligand (rhTRAIL)-induced apoptosis and clonogenicity in these gastric cancer cells. This study demonstrates a possible role of MDL-12330A as a potential sensitizer to TRAIL, and suggests a novel therapeutic strategy targeting gastric cancer cells.
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Affiliation(s)
- Sung-Chul Lim
- Department of Pathology, College of Medicine, Chosun University, Gwangju 61501, Korea
| | - Song Iy Han
- Division of Premedical Science, College of Medicine, Chosun University, Gwangju 61501, Korea
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26
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Wu W, Yang Y, Deng G, Ma L, Wei G, Zheng G, Han X, He D, Zhao Y, He J, Cai Z, Yu R. Vernodalol enhances TRAIL-induced apoptosis in diffuse large B-cell lymphoma cells. Mol Carcinog 2017; 56:2190-2199. [PMID: 28467689 DOI: 10.1002/mc.22672] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 04/15/2017] [Accepted: 05/01/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Wenjun Wu
- The Bone Marrow Transplantation Center and Multiple Myeloma Treatment Center; The First Affiliated Hospital of Medical College, Zhejiang University; Hangzhou China
| | - Yang Yang
- The Bone Marrow Transplantation Center and Multiple Myeloma Treatment Center; The First Affiliated Hospital of Medical College, Zhejiang University; Hangzhou China
| | - Gang Deng
- The Ningbo Central Blood Station; Ningbo China
| | - Liang Ma
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, School of Medicine; Ningbo University; Ningbo China
| | - Guoqing Wei
- The Bone Marrow Transplantation Center and Multiple Myeloma Treatment Center; The First Affiliated Hospital of Medical College, Zhejiang University; Hangzhou China
| | - Gaofeng Zheng
- The Bone Marrow Transplantation Center and Multiple Myeloma Treatment Center; The First Affiliated Hospital of Medical College, Zhejiang University; Hangzhou China
| | - Xiaoyan Han
- The Bone Marrow Transplantation Center and Multiple Myeloma Treatment Center; The First Affiliated Hospital of Medical College, Zhejiang University; Hangzhou China
| | - Donghua He
- The Bone Marrow Transplantation Center and Multiple Myeloma Treatment Center; The First Affiliated Hospital of Medical College, Zhejiang University; Hangzhou China
| | - Yi Zhao
- The Bone Marrow Transplantation Center and Multiple Myeloma Treatment Center; The First Affiliated Hospital of Medical College, Zhejiang University; Hangzhou China
| | - Jinsong He
- The Bone Marrow Transplantation Center and Multiple Myeloma Treatment Center; The First Affiliated Hospital of Medical College, Zhejiang University; Hangzhou China
| | - Zhen Cai
- The Bone Marrow Transplantation Center and Multiple Myeloma Treatment Center; The First Affiliated Hospital of Medical College, Zhejiang University; Hangzhou China
| | - Rui Yu
- Department of Biochemistry and Molecular Biology, Zhejiang Key Laboratory of Pathophysiology, School of Medicine; Ningbo University; Ningbo China
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27
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Yuan SY, Shiau MY, Ou YC, Huang YC, Chen CC, Cheng CL, Chiu KY, Wang SS, Tsai KJ. Miconazole induces apoptosis via the death receptor 5-dependent and mitochondrial-mediated pathways in human bladder cancer cells. Oncol Rep 2017; 37:3606-3616. [PMID: 28498480 DOI: 10.3892/or.2017.5608] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Accepted: 01/26/2017] [Indexed: 11/06/2022] Open
Abstract
Miconazole (MIC), an antifungal agent, diplays anti‑tumorigenic activity in various types of human cancers, including bladder cancer, yet its mechanism of antitumor action is not well understood. In the present study, we demonstrated that, in a cell viability assay, MIC had a cytotoxic effect on human T24, J82 and TSGH-8301 bladder cancer cells in a dose- and time‑dependent manner, but did not exhibit significant toxicity toward human peripheral blood mononuclear cells. Cell cycle analysis revealed that MIC at concentrations of 25 and 50 µM significantly caused G0/G1 arrest in the TSGH-8301 and T24 cells, respectively. DNA fragmentation, mitochondrial membrane potential and western blot analyses showed that MIC inhibited the growth of these cells by both mitochondrial‑mediated and death receptor (DR5)‑mediated apoptosis pathways. Specifically, MIC increased the protein levels of p21 and p27, but decreased the expression of cyclin E1, CDK2 and CDK4. MIC augmented the expression of DR5, cleaved forms of caspase-3 -8 and -9, poly(ADP‑ribose) polymerase and Bax, decreased the expression of Bcl-2 but increased cytosol levels of cytochrome c. Our results suggest that MIC inhibits the growth of bladder cancer cells through induction of G0/G1 arrest and apoptosis via activation of both the extrinsic and intrinsic apoptotic pathways. MIC is a potential chemotherapeutic agent for treating bladder cancer in humans.
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Affiliation(s)
- Sheau-Yun Yuan
- Division of Urology, Department of Surgery, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C
| | - Ming-Yuh Shiau
- Department of Nursing, Hung Kung University, Taichung 43302, Taiwan, R.O.C
| | - Yen-Chuan Ou
- Division of Urology, Department of Surgery, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C
| | - Yu-Chia Huang
- Department of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung 40201, Taiwan, R.O.C
| | - Cheng-Che Chen
- Division of Urology, Department of Surgery, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C
| | - Chen-Li Cheng
- Division of Urology, Department of Surgery, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C
| | - Kun-Yuan Chiu
- Division of Urology, Department of Surgery, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C
| | - Shian-Shiang Wang
- Division of Urology, Department of Surgery, Taichung Veterans General Hospital, Taichung 40705, Taiwan, R.O.C
| | - Kan-Jen Tsai
- Department of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung 40201, Taiwan, R.O.C
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28
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McConkey DJ. The integrated stress response and proteotoxicity in cancer therapy. Biochem Biophys Res Commun 2017; 482:450-453. [PMID: 28212730 DOI: 10.1016/j.bbrc.2016.11.047] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 11/09/2016] [Indexed: 10/20/2022]
Abstract
A variety of different forms of cellular stress can cause protein misfolding and aggregation and proteotoxicity. The cytoprotective response to proteotoxicity is termed the integrated stress response and involves 4 distinct serine/threonine protein kinases that converge on the translation initiation factor eIF2α, resulting in phosphorylation at S51, cell cycle arrest, and a general inhibition of global protein synthesis. Phosphorylation of eIF2α also promotes translation of ATF4 and the expression of ATF4 target genes that ameliorate proteotoxic stress but can also promote apoptosis. This mini review provides a general overview of these mechanisms and discusses how the inter-tumor heterogeneity that involves them affects sensitivity and resistance to proteasome inhibitors, a new class of cancer therapeutics that promotes tumor cell killing via proteotoxic stress.
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Affiliation(s)
- David J McConkey
- Johns Hopkins Greenberg Bladder Cancer Institute, Brady Urological Institute, 600 North Wolfe Street, Baltimore, MD 21287, United States.
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29
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Mert U, Sanlioglu AD. Intracellular localization of DR5 and related regulatory pathways as a mechanism of resistance to TRAIL in cancer. Cell Mol Life Sci 2017; 74:245-255. [PMID: 27510421 PMCID: PMC11107773 DOI: 10.1007/s00018-016-2321-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 07/19/2016] [Accepted: 08/02/2016] [Indexed: 10/21/2022]
Abstract
TNF-related apoptosis-inducing ligand (TRAIL) is a prominent cytokine capable of inducing apoptosis. It can bind to five different cognate receptors, through which diverse intracellular pathways can be activated. TRAIL's ability to preferentially kill transformed cells makes it a promising potential weapon for targeted tumor therapy. However, recognition of several resistance mechanisms to TRAIL-induced apoptosis has indicated that a thorough understanding of the details of TRAIL biology is still essential before this weapon can be confidently unleashed. Critical to this aim is revealing the functions and regulation mechanisms of TRAIL's potent death receptor DR5. Although expression and signaling mechanisms of DR5 have been extensively studied, other aspects, such as its subcellular localization, non-signaling functions, and regulation of its membrane transport, have only recently attracted attention. Here, we discuss different aspects of TRAIL/DR5 biology, with a particular emphasis on the factors that seem to influence the cell surface expression pattern of DR5, along with factors that lead to its nuclear localization. Disturbance of this balance apparently affects the sensitivity of cancer cells to TRAIL-mediated apoptosis, thus constituting an eligible target for potential new therapeutic agents.
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Affiliation(s)
- Ufuk Mert
- Department of Medical Biology and Genetics, Faculty of Medicine, Akdeniz University, 07058, Antalya, Turkey
| | - Ahter Dilsad Sanlioglu
- Department of Medical Biology and Genetics, Faculty of Medicine, Akdeniz University, 07058, Antalya, Turkey.
- Center for Gene and Cell Therapy, Akdeniz University, 07058, Antalya, Turkey.
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30
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Yulyana Y, Tovmasyan A, Ho IAW, Sia KC, Newman JP, Ng WH, Guo CM, Hui KM, Batinic-Haberle I, Lam PYP. Redox-Active Mn Porphyrin-based Potent SOD Mimic, MnTnBuOE-2-PyP(5+), Enhances Carbenoxolone-Mediated TRAIL-Induced Apoptosis in Glioblastoma Multiforme. Stem Cell Rev Rep 2016; 12:140-55. [PMID: 26454429 DOI: 10.1007/s12015-015-9628-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Glioblastoma multiforme is the most malignant tumor of the brain and is challenging to treat due to its highly invasive nature and heterogeneity. Malignant brain tumor displays high metabolic activity which perturbs its redox environment and in turn translates to high oxidative stress. Thus, pushing the oxidative stress level to achieve the maximum tolerable threshold that induces cell death is a potential strategy for cancer therapy. Previously, we have shown that gap junction inhibitor, carbenoxolone (CBX), is capable of enhancing tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) -induced apoptosis in glioma cells. Since CBX is known to induce oxidative stress, we hypothesized that the addition of another potent mediator of oxidative stress, powerful SOD mimic MnTnBuOE-2-PyP(5+) (MnBuOE), could further enhance TRAIL-driven therapeutic efficacy in glioma cells. Our results showed that combining TRAIL + CBX with MnBuOE significantly enhances cell death of glioma cell lines and this enhancement could be further potentiated by CBX pretreatment. MnBuOE-driven cytotoxicity is due to its ability to take advantage of oxidative stress imposed by CBX + TRAIL system, and enhance it in the presence of endogenous reductants, ascorbate and thiol, thereby producing cytotoxic H2O2, and in turn inducing death of glioma cells but not normal astrocytes. Most importantly, combination treatment significantly reduces viability of TRAIL-resistant Asian patient-derived glioma cells, thus demonstrating the potential clinical use of our therapeutic system. It was reported that H2O2 is involved in membrane depolarization-based sensitization of cancer cells toward TRAIL. MnBuOE is entering Clinical Trials as a normal brain radioprotector in glioma patients at Duke University increasing Clinical relevance of our studies.
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Affiliation(s)
- Yulyana Yulyana
- Laboratory of Cancer Gene Therapy, Cellular and Molecular Research Division, Humphrey Oei Institute of Cancer Research, National Cancer Centre, 11 Hospital Drive, Singapore, 169610, Singapore
| | - Artak Tovmasyan
- Department of Radiation Oncology, Duke University Medical Center, Research Drive 281b/285 MSRB I, Box 3455, Durham, NC, 27710, USA
| | - Ivy A W Ho
- Laboratory of Cancer Gene Therapy, Cellular and Molecular Research Division, Humphrey Oei Institute of Cancer Research, National Cancer Centre, 11 Hospital Drive, Singapore, 169610, Singapore.,National Neuroscience Institute, Singapore, Singapore
| | - Kian Chuan Sia
- Laboratory of Cancer Gene Therapy, Cellular and Molecular Research Division, Humphrey Oei Institute of Cancer Research, National Cancer Centre, 11 Hospital Drive, Singapore, 169610, Singapore.,National University of Singapore, Singapore, Singapore
| | - Jennifer P Newman
- Laboratory of Cancer Gene Therapy, Cellular and Molecular Research Division, Humphrey Oei Institute of Cancer Research, National Cancer Centre, 11 Hospital Drive, Singapore, 169610, Singapore
| | - Wai Hoe Ng
- Department of Neurosurgery, National Neuroscience Institute, Singapore, Singapore
| | - Chang Ming Guo
- Department of Orthopedics, Singapore General Hospital, Singapore, Singapore
| | - Kam Man Hui
- Bek Chai Heah Laboratory of Cancer Genomics, Cellular and Molecular Research Division, Humphrey Oei Institute of Cancer Research, National Cancer Centre of Singapore, Singapore, Singapore.,Cancer and Stem Cells Biology Program, Duke-NUS Graduate Medical School, Singapore, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Institute of Molecular and Cell Biology, A*STAR, Proteos, Singapore
| | - Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University Medical Center, Research Drive 281b/285 MSRB I, Box 3455, Durham, NC, 27710, USA. .,Duke Cancer Institute, Duke University Medical Centre, Durham, NC, USA.
| | - Paula Y P Lam
- Laboratory of Cancer Gene Therapy, Cellular and Molecular Research Division, Humphrey Oei Institute of Cancer Research, National Cancer Centre, 11 Hospital Drive, Singapore, 169610, Singapore. .,Cancer and Stem Cells Biology Program, Duke-NUS Graduate Medical School, Singapore, Singapore. .,Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
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31
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Ginsenoside compound K sensitizes human colon cancer cells to TRAIL-induced apoptosis via autophagy-dependent and -independent DR5 upregulation. Cell Death Dis 2016; 7:e2334. [PMID: 27512955 PMCID: PMC5108320 DOI: 10.1038/cddis.2016.234] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 06/24/2016] [Accepted: 07/07/2016] [Indexed: 11/08/2022]
Abstract
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is a potent cancer cell-specific apoptosis-inducing cytokine with little toxicity to most normal cells. However, acquired resistance of cancer cells to TRAIL is a roadblock. Agents that can either potentiate the effect of TRAIL or overcome resistance to TRAIL are urgently needed. This article reports that ginsenoside compound K (CK) potentiates TRAIL-induced apoptosis in HCT116 colon cancer cells and sensitizes TRAIL-resistant colon cancer HT-29 cells to TRAIL. On a cellular mechanistic level, CK downregulated cell survival proteins including Mcl-1, Bcl-2, surviving, X-linked inhibitor of apoptosis protein and Fas-associated death domain-like IL-1-converting enzyme-inhibitory protein, upregulated cell pro-apoptotic proteins including Bax, tBid and cytochrome c, and induced the cell surface expression of TRAIL death receptor DR5. Reduction of DR5 levels by siRNAs significantly decreases CK- and TRAIL-mediated apoptosis. Importantly, our results indicate, for the first time, that DR5 upregulation is mediated by autophagy, as blockade of CK-induced autophagy by 3-MA, LY294002 or Atg7 siRNAs substantially decreases DR5 upregulation and reduces the synergistic effect. Furthermore, CK-stimulated autophagy is mediated by the reactive oxygen species–c-Jun NH2-terminal kinase pathway. Moreover, we found that p53 and the C/EBP homologous (CHOP) protein is also required for DR5 upregulation but not related with autophagy. Our findings contribute significantly to the understanding of the mechanism accounted for the synergistic anticancer activity of CK and TRAIL, and showed a novel mechanism related with DR5 upregulation.
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32
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Chen LX, Xia GY, He H, Huang J, Qiu F, Zi XL. New withanolides with TRAIL-sensitizing effect from Physalis pubescens L. RSC Adv 2016; 6:52925-52936. [PMID: 27822364 PMCID: PMC5095689 DOI: 10.1039/c6ra07031k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Physalis pubescens L. plant produces nutritious and healthy fruits, called husk tomato or hairy ground cherry. However, its bioactive components are largely unknown. Four new withanolide steroids (1-4) together with one known withanolide (5) were isolated from the extract of P. pubescens L. and their chemical structures were established by extensive spectroscopic analyses. Compounds 1, 3 and 5 showed potent growth inhibitory effects against four human renal cell carcinoma (RCC) cell lines (i.e. 786-O, A-498, Caki-2 and ACHN). Among them, compound 1 was the most potent one with IC50s ranged from 0.30 to 0.77 μM. Further experiment showed that 1 sensitized human RCC cells 786-O to the tumor necrosis factor related apoptosis ligand (TRAIL)-induced apoptosis and increased the expression of C/EBP-homologous protein (CHOP) and death receptor-5 (DR5), leading to activation of the DR5 and caspase-8/3 mediated apoptosis pathway. Molecular docking analysis revealed that compound 1 could bind stably to the TRAIL/DR5 complex through hydrogen bonds. These results suggest that the new withanolide (1) is a lead anti-cancer compound existing in P. pubescens L. and deserves further investigation for RCC prevention and treatment.
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Affiliation(s)
- Li-Xia Chen
- Department of Natural Products Chemistry, School of Traditional
Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design &
Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang
110016, People’s Republic of China
- Department of Urology, University of California, Irvine, Orange, CA
92868, USA
| | - Gui-Yang Xia
- Department of Natural Products Chemistry, School of Traditional
Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design &
Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang
110016, People’s Republic of China
- School of Chinese Materia Medica and Tianjin State Key Laboratory of
Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin
300193, People’s Republic of China
| | - Hao He
- School of Pharmaceutical Sciences, Xi’ an Medical
University, Xi’ an 710021, People’s Republic of China
| | - Jian Huang
- Department of Natural Products Chemistry, School of Traditional
Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design &
Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang
110016, People’s Republic of China
| | - Feng Qiu
- Department of Natural Products Chemistry, School of Traditional
Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design &
Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang
110016, People’s Republic of China
- School of Chinese Materia Medica and Tianjin State Key Laboratory of
Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin
300193, People’s Republic of China
| | - Xiao-Lin Zi
- Department of Urology, University of California, Irvine, Orange, CA
92868, USA
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Park JS, Lim CJ, Bang OS, Kim NS. Ethanolic extract of Descurainia sophia seeds sensitizes A549 human lung cancer cells to TRAIL cytotoxicity by upregulating death receptors. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 16:115. [PMID: 27039295 PMCID: PMC4818868 DOI: 10.1186/s12906-016-1094-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 03/25/2016] [Indexed: 01/18/2023]
Abstract
Background Our previous genome-wide gene expression analysis revealed that tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) death receptors 4 (DR4) and 5 (DR5) are markedly upregulated by the ethanolic extract of D. sohia seeds (EEDS) in A549 TRAIL-refractory cancer cells. In the present study, we investigated whether the EEDS-mediated upregulation of TRAIL death receptors was associated with increased TRAIL-mediated toxicity in A549 cells in vitro. Methods Cell proliferation and viability were determined by an automatic cell counter. Gene silencing was performed by introducing small interfering RNA into cells. Expression changes of cellular proteins were determined by western blot analysis. Apoptotic cell death was monitored by western blot analysis. Analysis of variance followed by the post-hoc Dunnett’s test was used to compare the data. Results EEDS treatment increased both mRNA and protein levels of DR4 and DR5 in the TRAIL refractory A549 cells. Co-treatment of A549 cells with sub-lethal dose of EEDS and recombinant TRAIL increased the apoptotic cell death. Upregulation of DR5 by EEDS was mediated by an endoplasmic reticulum stress-induced transcription factor, CCAAT/enhancer-binding protein homologous protein (CHOP), and knockdown of CHOP expression inhibited EEDS-induced DR5 upregulation and abolished the EEDS-associated increase in TRAIL toxicity in A549 cells. Conclusions EEDS can sensitize A549 cells to TRAIL cytotoxicity by upregulation of TRAIL death receptors. Our findings suggested that EEDS is a good initial herbal source for the development of an anticancer supplement for anticancer therapeutics associated with TRAIL. Electronic supplementary material The online version of this article (doi:10.1186/s12906-016-1094-0) contains supplementary material, which is available to authorized users.
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Lin Y, Wang Y, Liu X, Yan J, Su L, Liu X. A novel derivative of tetrandrine (H1) induces endoplasmic reticulum stress-mediated apoptosis and prosurvival autophagy in human non-small cell lung cancer cells. Tumour Biol 2016; 37:10403-13. [PMID: 26846103 DOI: 10.1007/s13277-016-4950-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 01/29/2016] [Indexed: 02/05/2023] Open
Abstract
H1, a bromized derivative of tetrandrine, has been reported to induce apoptosis in human cancer cells. But, the underlying mechanism of apoptosis triggered by H1 is unclear. In the present study, we found that H1 triggered death receptor 5 (DR5)-dependent apoptosis in non-small cell lung cancer (NSCLC) cells. Further study showed that H1 activated ER stress through enforcing the expression of Bip/GRP78, IRE1α, p-eIF2α, and CHOP. Moreover, abrogating CHOP expression blocked DR5 upregulation and subsequent apoptosis, indicating that CHOP was essential for DR5-dependent apoptosis induced by H1. In addition, H1 greatly downregulated cellular FLICE-inhibitory protein (c-FLIP), and enhanced expression of c-FLIP protected cancer cells from apoptosis in spite of H1 therapy. Furthermore, we discovered that H1 induced autophagy in human NSCLC cells. Interestingly, the autophagy induced by H1 played a protective function in NSCLC cells and effectively weakened caspase-mediated apoptosis. In summary, these findings suggest that H1 induces DR5-dependent apoptosis in human NSCLC cells via stimulating ER stress signaling pathway, and pharmacologically inhibiting autophagy will be an efficient approach to synergize H1-caused apoptosis in lung cancer cells.
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Affiliation(s)
- Yidan Lin
- The Thoracic Surgery Department of West China Hospital, West China Medical School of Sichuan University, Chengdu, China
| | - Yu Wang
- The Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Rm 103, South BLDG, 27 Shanda South Road, Jinan, 250100, China
| | - Xianfang Liu
- The Department of Otolaryngology Head and Neck Surgery, Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Jiamei Yan
- The Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Rm 103, South BLDG, 27 Shanda South Road, Jinan, 250100, China
| | - Ling Su
- The Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Rm 103, South BLDG, 27 Shanda South Road, Jinan, 250100, China
| | - Xiangguo Liu
- The Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Rm 103, South BLDG, 27 Shanda South Road, Jinan, 250100, China.
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KIM JIHUN, KIM YUCHUL, PARK BYOUNGDUCK. Hispolon from Phellinus linteus induces apoptosis and sensitizes human cancer cells to the tumor necrosis factor-related apoptosis-inducing ligand through upregulation of death receptors. Oncol Rep 2015; 35:1020-6. [DOI: 10.3892/or.2015.4440] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 10/30/2015] [Indexed: 11/06/2022] Open
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Rodvold JJ, Mahadevan NR, Zanetti M. Immune modulation by ER stress and inflammation in the tumor microenvironment. Cancer Lett 2015; 380:227-36. [PMID: 26525580 DOI: 10.1016/j.canlet.2015.09.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 09/16/2015] [Accepted: 09/19/2015] [Indexed: 12/18/2022]
Abstract
It is now increasingly evident that the immune system represents a barrier to tumor emergence, growth, and recurrence. Although this idea was originally proposed almost 50 years ago as the "immune surveillance hypothesis", it is commonly recognized that, with few rare exceptions, tumor cells always prevail. Thus, one of the central unsolved paradoxes of tumor immunology is how a tumor escapes immune control, which is reflected in the lack of effective autochthonous or vaccine-induced anti-tumor T cell responses. In this review, we discuss the role of the endoplasmic reticulum (ER) stress response/unfolded protein response (UPR) in the immunomodulation of myeloid cells and T cells. Specifically, we will discuss how the tumor cell UPR polarizes myeloid cells in a cell-extrinsic manner, and how in turn, thus polarized myeloid cells negatively affect T cell activation and clonal expansion.
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Affiliation(s)
- Jeffrey J Rodvold
- The Laboratory of Immunology, Department of Medicine and Moores Cancer Center, University of California, 9500 Gilman Drive, La Jolla, San Diego, CA 92093-0815
| | - Navin R Mahadevan
- The Laboratory of Immunology, Department of Medicine and Moores Cancer Center, University of California, 9500 Gilman Drive, La Jolla, San Diego, CA 92093-0815
| | - Maurizio Zanetti
- The Laboratory of Immunology, Department of Medicine and Moores Cancer Center, University of California, 9500 Gilman Drive, La Jolla, San Diego, CA 92093-0815.
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Chang CC, Kuan CP, Lin JY, Lai JS, Ho TF. Tanshinone IIA Facilitates TRAIL Sensitization by Up-regulating DR5 through the ROS-JNK-CHOP Signaling Axis in Human Ovarian Carcinoma Cell Lines. Chem Res Toxicol 2015. [PMID: 26203587 DOI: 10.1021/acs.chemrestox.5b00150] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Tanshinone IIA (TIIA) extracted from Salvia miltiorrhiza has been shown to possess antitumor and TRAIL-sensitizing activity. The involvement of DR5 in the mechanism whereby TIIA exerts its effects is unknown. This study aimed to explore the mechanism underlying TIIA augmentation of TRAIL-induced cell death in ovarian carcinoma cells. Cell viability was determined by MTS assay. Real-time RT-PCR and Western blotting were used to assess the mRNA and protein expression of relating signaling proteins. Transcriptional activation was explored by a dual-luciferase reporter assay. We found that TIIA sensitized human ovarian carcinoma cells to TRAIL-induced extrinsic apoptosis. Combined treatment with subtoxic concentrations of TIIA and TRAIL was more effective than single treatments with respect to cytotoxicity, clonogenic inhibition, and the induction of caspase-8 and PARP activity in ovarian carcinoma cell lines TOV-21G and SKOV3. TIIA induced DR5 protein and mRNA expression in a concentration-dependent manner. DR5/Fc treatment markedly suppressed the TRAIL cytotoxicity enhanced by TIIA. These results indicate that DR5 plays an essential role in TIIA-induced TRAIL sensitization and that induction of DR5 by TIIA is mediated through the up-regulation of CCAAT/enhancer-binding protein homologous protein (CHOP). Knockdown of CHOP gene expression by shRNA attenuated DR5 up-regulation and rescued cell viability under the treatment of TIIA-TRAIL combination. TIIA promoted JNK-mediated signaling to up-regulated CHOP and thereby inducing DR5 expression as shown by the ability of a JNK inhibitor to potently suppress the TIIA-mediated activation of CHOP and DR5. In addition, the quenching of ROS using NAC prevented the induction of JNK phosphorylation and CHOP induction. Furthermore, inhibition of ROS by NAC significantly attenuated TRAIL sensitization by TIIA. Taken together, these data suggest that TIIA enhances TRAIL-induced apoptosis by upregulating DR5 receptors through the ROS-JNK-CHOP signaling axis in human ovarian carcinoma cells.
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Affiliation(s)
| | - Cheng-Ping Kuan
- #Division of Biotechnology, Taiwan Agricultural Research Institute, Wufeng, Taiwan
| | - Jyun-Yi Lin
- †Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Jui-Sheng Lai
- #Division of Biotechnology, Taiwan Agricultural Research Institute, Wufeng, Taiwan
| | - Tsing-Fen Ho
- †Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
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Li T, Su L, Lei Y, Liu X, Zhang Y, Liu X. DDIT3 and KAT2A Proteins Regulate TNFRSF10A and TNFRSF10B Expression in Endoplasmic Reticulum Stress-mediated Apoptosis in Human Lung Cancer Cells. J Biol Chem 2015; 290:11108-18. [PMID: 25770212 DOI: 10.1074/jbc.m115.645333] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Indexed: 01/10/2023] Open
Abstract
TNFRSF10A and TNFRSF10B are cell surface receptors that bind to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and mediate the extrinsic pathway of apoptosis. However, the mechanisms of transcriptional regulation of TNFRSF10A and TNFRSF10B remain largely uncharacterized. In this study, two putative DDIT3 binding sites (-1636/-1625; -374/-364) and a putative AP-1 binding site (-304/-298) were identified in the TNFRSF10A promoter region. We found that DDIT3 interacts with phospho-JUN, and the DDIT3·phospho-JUN complex binds to the AP-1 binding site (-304/-298) within the TNFRSF10A promoter region. In addition, we confirmed that KAT2A physically interacts with the N-terminal region (amino acids 1-26) of DDIT3. Importantly, knockdown of KAT2A down-regulated TNFRSF10A and TNFRSF10B and dramatically decreased promoter activity of cells transfected with luciferase reporter plasmid containing the AP-1 binding site (-304/-298) of the TNFRSF10A promoter, as well as cells transfected with luciferase reporter plasmid containing DDIT3 binding site (-276/-264) of the TNFRSF10B promoter. ChIP results suggest that KAT2A may participate in a KAT2A·DDIT3·phospho-JUN complex, or may participate in a KAT2A·DDIT3 complex and acetylate H3K9/K14, respectively. Moreover, we verified that TNFRSF10A mediates apoptosis triggered by endoplasmic reticulum stress in human lung cancer cells. Collectively, we demonstrate that DDIT3 and KAT2A cooperatively up-regulate TNFRSF10A and TNFRSF10B. Our findings highlight novel mechanisms underlying endoplasmic reticulum stress-induced TNFRSF10A and TNFRSF10B expressions and apoptosis. These findings will be helpful for elucidating mechanisms related to anticancer drugs in mediating apoptosis.
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Affiliation(s)
- Tianliang Li
- From the Shandong University School of Life Sciences, Jinan 250100, China
| | - Ling Su
- From the Shandong University School of Life Sciences, Jinan 250100, China
| | - Yuanjiu Lei
- From the Shandong University School of Life Sciences, Jinan 250100, China
| | - Xianfang Liu
- From the Shandong University School of Life Sciences, Jinan 250100, China
| | - Yajing Zhang
- From the Shandong University School of Life Sciences, Jinan 250100, China
| | - Xiangguo Liu
- From the Shandong University School of Life Sciences, Jinan 250100, China
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Twomey JD, Kim SR, Zhao L, Bozza WP, Zhang B. Spatial dynamics of TRAIL death receptors in cancer cells. Drug Resist Updat 2015; 19:13-21. [PMID: 25840763 DOI: 10.1016/j.drup.2015.02.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 02/15/2015] [Accepted: 02/20/2015] [Indexed: 12/24/2022]
Abstract
TNF-related apoptosis inducing ligand (TRAIL) selectively induces apoptosis in cancer cells without harming most normal cells. Currently, multiple clinical trials are underway to evaluate the antitumor activity of recombinant human TRAIL (rhTRAIL) and agonistic antibodies that target death receptors (DRs) 4 or 5. It is encouraging that these products have shown a tolerated safety profile in early phase studies. However, their therapeutic potential is likely limited by the emergence of tumor drug resistance phenomena. Increasing evidence indicates that TRAIL DRs are deficient on the plasma membrane of some cancer cells despite their total protein expression. Notably, the lack of surface DR4/DR5 is sufficient to render cancers resistant to TRAIL-induced apoptosis, regardless of the status of other apoptosis signaling components. The current review highlights recent findings on the dynamic expression of TRAIL death receptors, including the regulatory roles of endocytosis, autophagy, and Ras GTPase-mediated signaling events. This information could aid in the identification of novel predictive biomarkers of tumor response as well as the development of combinational drugs to overcome or bypass tumor drug resistance to TRAIL receptor-targeted therapies.
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Affiliation(s)
- Julianne D Twomey
- Division of Biotechnology Review and Research IV, Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, United States
| | - Su-Ryun Kim
- Division of Biotechnology Review and Research IV, Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, United States
| | - Liqun Zhao
- Division of Biotechnology Review and Research IV, Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, United States
| | - William P Bozza
- Division of Biotechnology Review and Research IV, Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, United States
| | - Baolin Zhang
- Division of Biotechnology Review and Research IV, Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, United States.
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Ye Y, Miao S, Wang Y, Zhou J, Lu R. 3,3'-diindolylmethane potentiates tumor necrosis factor-related apoptosis-inducing ligand-induced apoptosis of gastric cancer cells. Oncol Lett 2015; 9:2393-2397. [PMID: 26137077 DOI: 10.3892/ol.2015.3008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 02/10/2015] [Indexed: 12/12/2022] Open
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) specifically kills cancer cells without destroying the majority of healthy cells. However, numerous types of cancer cell, including gastric cancer cells, tend to be resistant to TRAIL. The bioactive product 3,3'-diindolylmethane (DIM), which is derived from cruciferous vegetables, is also currently recognized as a candidate anticancer agent. In the present study, a Cell Counting Kit 8 cell growth assay and an Annexin V-fluorescein isothiocyanate apoptosis assay were performed to investigate the potentiating effect of DIM on TRAIL-induced apoptosis in gastric cancer cells, and the possible mechanisms of this potentiation. The results obtained demonstrated that, compared with TRAIL or DIM treatment alone, co-treatment with TRAIL (25 or 50 ng/ml) and DIM (10 µmol/l) induced cytotoxic and apoptotic effects in BGC-823 and SGC-7901 gastric cancer cells. Furthermore, western blot analysis revealed that the protein expression levels of death receptor 5 (DR5), CCAAT/enhancer binding protein homologous protein (CHOP) and glucose-regulated protein 78 (GRP78) were upregulated in the co-treated gastric cancer cells. To the best of our knowledge, the present study is the first to provide evidence that DIM sensitizes TRAIL-induced inhibition of proliferation and apoptosis in gastric cancer cells, accompanied by the upregulated expression of DR5, CHOP and GRP78 proteins, which may be involved in endoplasmic reticulum stress mechanisms.
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Affiliation(s)
- Yang Ye
- Department of Preventive Medicine, School of Medical Science and Laboratory Medicine, Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China ; Department of Molecular Cell Biology and Toxicology, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Shuhan Miao
- Department of Molecular Cell Biology and Toxicology, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China ; Department of Health Care, The Fourth Affiliated Hospital, Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
| | - Yan Wang
- Department of Preventive Medicine, School of Medical Science and Laboratory Medicine, Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
| | - Jianwei Zhou
- Department of Molecular Cell Biology and Toxicology, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Rongzhu Lu
- Department of Preventive Medicine, School of Medical Science and Laboratory Medicine, Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China ; Department of Public Health Laboratory Science, School of Medical Science and Laboratory Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
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Cui J, Sun W, Hao X, Wei M, Su X, Zhang Y, Su L, Liu X. EHMT2 inhibitor BIX-01294 induces apoptosis through PMAIP1-USP9X-MCL1 axis in human bladder cancer cells. Cancer Cell Int 2015; 15:4. [PMID: 25685062 PMCID: PMC4326523 DOI: 10.1186/s12935-014-0149-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 12/18/2014] [Indexed: 12/15/2022] Open
Abstract
BIX-01294, an euchromatic histone-lysine N-methyltransferase 2 (EHMT2) inhibitor, has been reported to induce apoptosis in human neuroblastoma cells and inhibit the proliferation of bladder cancer cells. However, the definite mechanism of the apoptosis mediated by BIX-01294 in bladder cancer cells remains unclear. In the present study, we found that BIX-01294 induced caspase-dependent apoptosis in human bladder cancer cells. Moreover, our data show BIX-01294 stimulates endoplasmic reticulum stress (ER stress) and up-regulated expression of PMAIP1 through DDIT3 up-regulation. Furthermore, down-regulation of the deubiquitinase USP9X by BIX-01294 results in downstream reduction of MCL1 expression, leading to apoptosis eventually. Thus, our findings demonstrate PMAIP1-USP9X-MCL1 axis may contribute to BIX-01294-induced apoptosis in human bladder cancer cells.
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Affiliation(s)
- Jing Cui
- Shandong University School of Life Sciences, Room 103, South Building, 27 Shanda South Road, Jinan, 250100 China
| | - Wendong Sun
- The Second Hospital, Shandong University, Jinan, China
| | - Xuexi Hao
- The Second Hospital, Shandong University, Jinan, China
| | - Minli Wei
- Shandong University School of Life Sciences, Room 103, South Building, 27 Shanda South Road, Jinan, 250100 China
| | - Xiaonan Su
- Shandong University School of Life Sciences, Room 103, South Building, 27 Shanda South Road, Jinan, 250100 China
| | - Yajing Zhang
- Shandong University School of Life Sciences, Room 103, South Building, 27 Shanda South Road, Jinan, 250100 China
| | - Ling Su
- Shandong University School of Life Sciences, Room 103, South Building, 27 Shanda South Road, Jinan, 250100 China
| | - Xiangguo Liu
- Shandong University School of Life Sciences, Room 103, South Building, 27 Shanda South Road, Jinan, 250100 China
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Fujiki H, Sueoka E, Watanabe T, Suganuma M. Synergistic enhancement of anticancer effects on numerous human cancer cell lines treated with the combination of EGCG, other green tea catechins, and anticancer compounds. J Cancer Res Clin Oncol 2014; 141:1511-22. [PMID: 25544670 DOI: 10.1007/s00432-014-1899-5] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 12/17/2014] [Indexed: 01/08/2023]
Abstract
PURPOSE In 2008, we reported that 10 Japanese-size cups of green tea daily, supplemented with tablets of green tea extract (GTE), reduced the recurrence of colorectal adenoma by 51.6% in patients after polypectomy. Based on these results, we paid special attention to Japanese cancer patients, who consume green tea every day and are administered anticancer drugs. This encouraged us to study whether the combination of green tea catechins and anticancer drugs has the potential to enhance the efficacy of the drugs. RESULTS AND DISCUSSION The combination of GTE and NSAIDs synergistically inhibited tumor development in rodents through the activation of the GADD153-DR5-TRAIL apoptotic pathway. Since then, this study was further extended by various investigators to the combinations of EGCG and other green tea catechins with anticancer compounds, the latter of which include NSAIDs, phytochemicals, and anticancer drugs. In order to demonstrate whether diversity of the combinations would generally induce synergistic anticancer effects on numerous human cancer cell lines, we studied the results of 42 in vitro combination experiments and the synergistic inhibition of tumor volume of 13 combination experiments using xenograft mouse models, which were previously reported by other investigators. The various combinations of EGCG and anticancer compounds induced similar synergistic anticancer effects for both in vitro and in vivo experiments, and showed an average reduction in tumor volume by 70.3%. Considering the evidence showing that treatment with EGCG inhibited self-renewal of cancer stem cells, the combination shows a great advantage. CONCLUSION Green tea is a cancer preventive for humans, showing a new trend of green tea catechins as synergists with anticancer compounds.
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Affiliation(s)
- Hirota Fujiki
- Department of Clinical Laboratory Medicine, Faculty of Medicine, Saga University, Nabeshima, Saga, 849-8501, Japan,
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Inhibition of hepatitis E virus replication by proteasome inhibitor is nonspecific. Arch Virol 2014; 160:435-9. [PMID: 25476751 PMCID: PMC7087333 DOI: 10.1007/s00705-014-2303-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 11/29/2014] [Indexed: 12/26/2022]
Abstract
The ubiquitin proteasome system plays important role in virus infection. A previous study showed that the proteasome inhibitor MG132 could potentially affect hepatitis E virus (HEV) replication. In this study, we found that MG132 could inhibit HEV and hepatitis C virus (HCV) replication-related luciferase activity in subgenomic models. Furthermore, treatment with MG132 in a HEV infectious model resulted in a dramatic reduction in the intracellular level of HEV RNA. Surprisingly, MG132 concurrently inhibited the expression of a luciferase gene used as a control as well as a wide range of host genes. Consistently, the total cellular RNA and protein content was concurrently reduced by MG132 treatment, suggesting a nonspecific antiviral effect.
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Verma S, Loewendorf A, Wang Q, McDonald B, Redwood A, Benedict CA. Inhibition of the TRAIL death receptor by CMV reveals its importance in NK cell-mediated antiviral defense. PLoS Pathog 2014; 10:e1004268. [PMID: 25122141 PMCID: PMC4133390 DOI: 10.1371/journal.ppat.1004268] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 06/08/2014] [Indexed: 11/19/2022] Open
Abstract
TNF-related apoptosis inducing ligand (TRAIL) death receptors (DR) regulate apoptosis and inflammation, but their role in antiviral defense is poorly understood. Cytomegaloviruses (CMV) encode many immune-modulatory genes that shape host immunity, and they utilize multiple strategies to target the TNF-family cytokines. Here we show that the m166 open reading frame (orf) of mouse CMV (MCMV) is strictly required to inhibit expression of TRAIL-DR in infected cells. An MCMV mutant lacking m166 expression (m166stop) is severely compromised for replication in vivo, most notably in the liver, and depleting natural killer (NK) cells, or infecting TRAIL-DR-/- mice, restored MCMV-m166stop replication completely. These results highlight the critical importance for CMV to have evolved a strategy to inhibit TRAIL-DR signaling to thwart NK-mediated defenses.
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Affiliation(s)
- Shilpi Verma
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, California, United States of America
| | - Andrea Loewendorf
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, California, United States of America
| | - Qiao Wang
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, California, United States of America
| | - Bryan McDonald
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, California, United States of America
| | - Alec Redwood
- Microbiology and Immunology, School of Pathology and Laboratory Medicine, University of Western Australia, Crawley, Western Australia, Australia
| | - Chris A. Benedict
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, California, United States of America
- * E-mail:
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Prasad S, Kim JH, Gupta SC, Aggarwal BB. Targeting death receptors for TRAIL by agents designed by Mother Nature. Trends Pharmacol Sci 2014; 35:520-36. [PMID: 25128958 DOI: 10.1016/j.tips.2014.07.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 07/01/2014] [Accepted: 07/11/2014] [Indexed: 12/17/2022]
Abstract
Selective killing of cancer cells is one of the major goals of cancer therapy. Although chemotherapeutic agents are being used for cancer treatment, they lack selectivity toward tumor cells. Among the six different death receptors (DRs) identified to date, DR4 and DR5 are selectively expressed on cancer cells. Therefore, unlike chemotherapeutic agents, these receptors can potentially mediate selective killing of tumor cells. In this review we outline various nutraceuticals derived from 'Mother Nature' that can upregulate DRs and thus potentiate apoptosis. These nutraceuticals increase tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL)-induced apoptosis of cancer cells through different mechanisms. First, nutraceuticals have been found to induce DRs through the upregulation of various signaling molecules. Second, nutraceuticals can downregulate tumor cell-survival pathways. Third, nutraceuticals alone have been found to activate cell-death pathways. Although both TRAIL and agonistic antibodies against DR4 and DR5 are in clinical trials, combination with nutraceuticals is likely to boost their anticancer potential.
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Affiliation(s)
- Sahdeo Prasad
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
| | - Ji Hye Kim
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
| | - Subash C Gupta
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
| | - Bharat B Aggarwal
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA.
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Myeloid zinc finger 1 mediates sulindac sulfide-induced upregulation of death receptor 5 of human colon cancer cells. Sci Rep 2014; 4:6000. [PMID: 25102912 PMCID: PMC4126006 DOI: 10.1038/srep06000] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 07/22/2014] [Indexed: 12/21/2022] Open
Abstract
A combined therapy of sulindac sulfide and tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a promising strategy for the treatment of cancer. Sulindac sulfide had been shown to induce the expression of death receptor 5 (DR5), a receptor for TRAIL, and sensitize cancer cells to TRAIL-induced apoptosis; however, the molecular mechanism underlying the upregulation of DR5 has not yet been elucidated. We demonstrate here that myeloid zinc finger 1 (MZF1) mediates the induction of DR5 by sulindac sulfide. Sulindac sulfide induced the expression of DR5 at the protein and mRNA levels in colon cancer SW480 cells. Furthermore, sulindac sulfide increased DR5 promoter activity. We showed that sulindac sulfide stimulated DR5 promoter activity via the −301 to −253 region. This region contained a putative MZF1-binding site. Site-directed mutations in the site abrogated the enhancement in DR5 promoter activity by sulindac sulfide. MZF1 directly bound to the putative MZF1-binding site of the DR5 promoter and the binding was increased by sulindac sulfide. The expression of MZF1 was also increased by sulindac sulfide, and MZF1 siRNA attenuated the upregulation of DR5 by sulindac sulfide. These results indicate that sulindac sulfide induces the expression of DR5 by up-regulating MZF1.
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Jia Z, Wang J, Wang W, Tian Y, XiangWei W, Chen P, Ma K, Zhou C. Autophagy eliminates cytoplasmic β-catenin and NICD to promote the cardiac differentiation of P19CL6 cells. Cell Signal 2014; 26:2299-305. [PMID: 25101857 DOI: 10.1016/j.cellsig.2014.07.028] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 07/11/2014] [Accepted: 07/28/2014] [Indexed: 01/07/2023]
Abstract
Autophagy plays important roles in adipogenesis and neuron development. However, how autophagy contributes to cardiac development is not well understood. The main aim of our study was to determine the association between autophagy and myocardial differentiation and its roles in this process. Using a well-established in vitro cardiomyocyte differentiation system, P19CL6 cells, we found that autophagy occurred from the early stage of cardiac differentiation. Blocking autophagy by knocking-down of autophagy-related gene Atg7 or Atg5 inhibited the cardiac differentiation of P19CL6 cells. Further investigation demonstrated that LC3 and P62 could form a complex with β-catenin and NICD, respectively, and promoted the degradation of β-catenin and NICD. Enhancing autophagy promoted the formation of complex, whereas blocking autophagy attenuated the degradation of β-catenin and NICD. Taken together, autophagy could facilitate P19CL6 cells to complete the cardiac differentiation process through blocking Wnt and Notch signaling pathways.
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Affiliation(s)
- Zhuqing Jia
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education of China, Peking University, Beijing 100191, PR China
| | - Jiaji Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education of China, Peking University, Beijing 100191, PR China
| | - Weiping Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education of China, Peking University, Beijing 100191, PR China
| | - Yuyao Tian
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education of China, Peking University, Beijing 100191, PR China
| | - Wenshu XiangWei
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education of China, Peking University, Beijing 100191, PR China
| | - Ping Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education of China, Peking University, Beijing 100191, PR China
| | - Kangtao Ma
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education of China, Peking University, Beijing 100191, PR China
| | - Chunyan Zhou
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education of China, Peking University, Beijing 100191, PR China.
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Li H, Chang G, Wang J, Wang L, Jin W, Lin Y, Yan Y, Wang R, Gao W, Ma L, Li Q, Pang T. Cariporide sensitizes leukemic cells to tumor necrosis factor related apoptosis-inducing ligand by up-regulation of death receptor 5 via endoplasmic reticulum stress-CCAAT/enhancer binding protein homologous protein dependent mechanism. Leuk Lymphoma 2014; 55:2135-40. [PMID: 24188478 DOI: 10.3109/10428194.2013.861064] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CCAAT/enhancer binding protein homologous protein (CHOP) expression increases when Na(+)-H(+) exchanger 1 (NHE1) is inhibited. Endoplasmic reticulum (ER) stress has been shown to trigger tumor cell death through CHOP. We therefore hypothesized that NHE1 activity correlates with ER stress and confers pharmaceutical potential to NHE1 inhibitor as an anti-tumor agent. The present study showed that treatment with the NHE1 inhibitor cariporide led to ER stress-induced up-regulation of the death receptor 5 (DR5) which is mediated by CHOP at the transcriptional level. We also determined that ER stress-induced Janus kinase (JNK) activation was responsible for the modulation of CHOP. Combining cariporide with tumor necrosis factor related apoptosis-inducing ligand (TRAIL) led to a significantly enhanced level of apoptosis that was abrogated by siRNA silencing of CHOP. This study provides a potential mechanistic rationale for the use of NHE1 inhibitor in combination with DR5 agonists to induce apoptosis in leukemia.
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Affiliation(s)
- Huawen Li
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College , Tianjin , China
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Subramaniam A, Loo SY, Rajendran P, Manu KA, Perumal E, Li F, Shanmugam MK, Siveen KS, Park JI, Ahn KS, Hui KM, Kumar AP, Sethi G. An anthraquinone derivative, emodin sensitizes hepatocellular carcinoma cells to TRAIL induced apoptosis through the induction of death receptors and downregulation of cell survival proteins. Apoptosis 2014; 18:1175-87. [PMID: 23700228 DOI: 10.1007/s10495-013-0851-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Recombinant tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is currently under clinical trials for cancer, however many tumor cells, including hepatocellular carcinoma (HCC) develop resistance to TRAIL-induced apoptosis. Hence, novel agents that can alleviate TRAIL-induced resistance are urgently needed. In the present report, we investigated the potential of emodin to enhance apoptosis induced by TRAIL in HCC cells. As observed by MTT cytotoxicity assay and the externalization of the membrane phospholipid phosphatidylserine, we found that emodin can significantly potentiate TRAIL-induced apoptosis in HCC cells. When investigated for the mechanism(s), we observed that emodin can downregulate the expression of various cell survival proteins, and induce the cell surface expression of both TRAIL receptors, death receptors (DR) 4 as well as 5. In addition, emodin increased the expression of C/EBP homologous protein (CHOP) in a time-dependent manner. Knockdown of CHOP by siRNA decreased the induction of emodin-induced DR5 expression and apoptosis. Emodin-induced induction of DR5 was mediated through the generation of reactive oxygen species (ROS), as N-acetylcysteine blocked the induction of DR5 and the induction of apoptosis. Also, the knockdown of X-linked inhibitor of apoptosis protein by siRNA significantly reduced the sensitization effect of emodin on TRAIL-induced apoptosis. Overall, our experimental results clearly indicate that emodin can indeed potentiate TRAIL-induced apoptosis through the downregulation of antiapoptotic proteins, increased expression of apoptotic proteins, and ROS mediated upregulation of DR in HCC cells.
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Affiliation(s)
- Aruljothi Subramaniam
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
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Minakawa T, Toume K, Arai MA, Koyano T, Kowithayakorn T, Ishibashi M. Prenylflavonoids isolated from Artocarpus champeden with TRAIL-resistance overcoming activity. PHYTOCHEMISTRY 2013; 96:299-304. [PMID: 24074554 DOI: 10.1016/j.phytochem.2013.08.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 07/17/2013] [Accepted: 08/26/2013] [Indexed: 06/02/2023]
Abstract
In a screening program for bioactive natural products which can overcome Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL)-resistance, three prenylflavonoids, named pannokin A-C, were isolated from a MeOH extract of Artocarpus champeden (Moraceae) roots, together with three known prenylflavonoids. The structures of pannokin A-C were elucidated by spectroscopic analysis. These of the prenylflavonoids in combination with TRAIL, showed cytotoxic activity in sensitizing TRAIL-resistant human gastric adenocarcinoma (AGS) cells. Of these compounds, heterophyllin increased caspase 3/7 activity when combined with TRAIL in AGS cells, and enhanced the expression of DR4 and DR5 mRNA. Moreover, heterophyllin up-regulated mRNA expression of CCAAT/enhancer-binding protein-homologous protein (CHOP) which was reported to be an important regulator of DR5 expression. Thus, heterophyllin was presumed to cause a CHOP-dependent up-regulation of DR5 expression resulting in apoptosis in AGS cells.
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Affiliation(s)
- Tomohiro Minakawa
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
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