1
|
Fang Y, Gong Z, You M, Peng K. Identification of a novel caspase cleavage motif AEAD. Virol Sin 2024:S1995-820X(24)00115-9. [PMID: 39098717 DOI: 10.1016/j.virs.2024.08.001] [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: 03/14/2023] [Accepted: 06/16/2023] [Indexed: 08/06/2024] Open
Abstract
Infections of many viruses induce caspase activation to regulate multiple cellular pathways, including programmed cell death, immune signaling and etc. Characterizations of caspase cleavage sites and substrates are important for understanding the regulation mechanisms of caspase activation. Here, we identified and analyzed a novel caspase cleavage motif AEAD, and confirmed its caspase dependent cleavage activity in natural substrate, such as nitric oxide-associated protein 1 (NOA1). Fusing the enhanced green fluorescent protein (EGFP) with the mitochondrial marker protein Tom20 through the AEAD motif peptide localized EGFP to the mitochondria. Upon the activation of caspase triggered by Sendai virus (SeV) or herpes simplex virus type 1 (HSV-1) infection, EGFP diffusely localized to the cell due to the caspase-mediated cleavage, thus allowing visual detection of the virus-induced caspase activation. An AEAD peptide-derived inhibitor Z-AEAD-FMK were developed, which significantly inhibited the activities of caspases-1, -3, -6, -7, -8 and -9, exhibiting a broad caspase inhibition effect. The inhibitor further prevented caspases-mediated cleavage of downstream substrates, including BID, PARP1, LMNA, pro-IL-1β, pro-IL-18, GSDMD and GSDME, protecting cells from virus-induced apoptotic and pyroptotic cell death. Together, our findings provide a new perspective for the identification of novel caspase cleavage motifs and the development of new caspase inhibitors and anti-inflammatory drugs.
Collapse
Affiliation(s)
- Yujie Fang
- State Key Laboratory of Virology, Center for Antiviral Research, Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430207, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhou Gong
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences, Wuhan, 430071, China
| | - Miaomiao You
- State Key Laboratory of Virology, Center for Antiviral Research, Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430207, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ke Peng
- State Key Laboratory of Virology, Center for Antiviral Research, Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430207, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Provincial Key Laboratory of Jiangxia, Wuhan, 430207, China.
| |
Collapse
|
2
|
Wang K, Nguyen T, Gao Y, Guo R, Fan C, Liao H, Li J, Chai J, Xu X, Gong Y, Chen X. Androcin 18-1, a novel scorpion-venom peptide, shows a potent antitumor activity against human U87 cells via inducing mitochondrial dysfunction. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2024; 170:104137. [PMID: 38759703 DOI: 10.1016/j.ibmb.2024.104137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 05/04/2024] [Accepted: 05/14/2024] [Indexed: 05/19/2024]
Abstract
Scorpion venom is a potent natural source for antitumor drug development due to the multiple action modes of anticancer components. Although the sequence of Androcin 18-1 has been identified from the transcriptome profile of the scorpion venom Androctonus bicolor, its bioactivity remains unclear. In this study, we described the antitumor mechanism whereby Androcin 18-1 inhibits the proliferation and induces apoptosis by inducing cell membrane disruption, ROS accumulation, and mitochondrial dysfunction in human U87 glioblastoma cells. Moreover, Androcin 18-1 could suppress cell migration via the mechanisms associated with cytoskeleton disorganization and MMPs/TIMPs expression regulation. The discovery of this work highlights the potential application of Androcin 18-1 in drug development for glioblastoma treatment.
Collapse
Affiliation(s)
- Kai Wang
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 510280, Guangzhou, China
| | - Tienthanh Nguyen
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515, Guangzhou, China
| | - Yihan Gao
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 510280, Guangzhou, China
| | - Ruiyin Guo
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515, Guangzhou, China
| | - Chaofan Fan
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 510280, Guangzhou, China
| | - Hang Liao
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515, Guangzhou, China
| | - Jiali Li
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515, Guangzhou, China
| | - Jinwei Chai
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 510280, Guangzhou, China
| | - Xueqing Xu
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 510280, Guangzhou, China; Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, 510515, Guangzhou, China.
| | - Yuxin Gong
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 510280, Guangzhou, China.
| | - Xin Chen
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, 510280, Guangzhou, China.
| |
Collapse
|
3
|
Deng H, Han Y, Liu L, Zhang H, Liu D, Wen J, Huang M, Zhao L. Targeting Myeloid Leukemia-1 in Cancer Therapy: Advances and Directions. J Med Chem 2024; 67:5963-5998. [PMID: 38597264 DOI: 10.1021/acs.jmedchem.3c01998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
As a tripartite cell death switch, B-cell lymphoma protein 2 (Bcl-2) family members precisely regulate the endogenous apoptosis pathway in response to various cell signal stresses through protein-protein interactions. Myeloid leukemia-1 (Mcl-1), a key anti-apoptotic Bcl-2 family member, is positioned downstream in the endogenous apoptotic pathway and plays a central role in regulating mitochondrial function. Mcl-1 is highly expressed in a variety of hematological malignancies and solid tumors, contributing to tumorigenesis, poor prognosis, and chemoresistance, making it an attractive target for cancer treatment. This Perspective aims to discuss the mechanism by which Mcl-1 regulates apoptosis and non-apoptotic functions in cancer cells and to outline the discovery and optimization process of potent Mcl-1 modulators. In addition, we summarize the structural characteristics of potent inhibitors that bind to Mcl-1 through multiple co-crystal structures and analyze the cardiotoxicity caused by current Mcl-1 inhibitors, providing prospects for rational targeting of Mcl-1.
Collapse
Affiliation(s)
- Hongguang Deng
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yu Han
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Liang Liu
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Hong Zhang
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Dan Liu
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jiachen Wen
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Min Huang
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Linxiang Zhao
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| |
Collapse
|
4
|
Khan S, Cao L, Wiegand J, Zhang P, Zajac-Kaye M, Kaye FJ, Zheng G, Zhou D. PROTAC-Mediated Dual Degradation of BCL-xL and BCL-2 Is a Highly Effective Therapeutic Strategy in Small-Cell Lung Cancer. Cells 2024; 13:528. [PMID: 38534371 PMCID: PMC10968744 DOI: 10.3390/cells13060528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/14/2024] [Accepted: 03/16/2024] [Indexed: 03/28/2024] Open
Abstract
BCL-xL and BCL-2 are validated therapeutic targets in small-cell lung cancer (SCLC). Targeting these proteins with navitoclax (formerly ABT263, a dual BCL-xL/2 inhibitor) induces dose-limiting thrombocytopenia through on-target BCL-xL inhibition in platelets. Therefore, platelet toxicity poses a barrier in advancing the clinical translation of navitoclax. We have developed a strategy to selectively target BCL-xL in tumors, while sparing platelets, by utilizing proteolysis-targeting chimeras (PROTACs) that hijack the cellular ubiquitin proteasome system for target ubiquitination and subsequent degradation. In our previous study, the first-in-class BCL-xL PROTAC, called DT2216, was shown to have synergistic antitumor activities when combined with venetoclax (formerly ABT199, BCL-2-selective inhibitor) in a BCL-xL/2 co-dependent SCLC cell line, NCI-H146 (hereafter referred to as H146), in vitro and in a xenograft model. Guided by these findings, we evaluated our newly developed BCL-xL/2 dual degrader, called 753b, in three BCL-xL/2 co-dependent SCLC cell lines and the H146 xenograft models. 753b was found to degrade both BCL-xL and BCL-2 in these cell lines. Importantly, it was considerably more potent than DT2216, navitoclax, or DT2216 + venetoclax in reducing the viability of BCL-xL/2 co-dependent SCLC cell lines in cell culture. In vivo, 5 mg/kg weekly dosing of 753b was found to lead to significant tumor growth delay, similar to the DT2216 + venetoclax combination in H146 xenografts, by degrading both BCL-xL and BCL-2. Additionally, 753b administration at 5 mg/kg every four days induced tumor regressions. At this dosage, 753b was well tolerated in mice, without observable induction of severe thrombocytopenia as seen with navitoclax, and no evidence of significant changes in mouse body weights. These results suggest that the BCL-xL/2 dual degrader could be an effective and safe therapeutic for a subset of SCLC patients, warranting clinical trials in future.
Collapse
Affiliation(s)
- Sajid Khan
- Department of Biochemistry & Structural Biology, Long School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
- Mays Cancer Center, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Lin Cao
- Department of Biochemistry & Structural Biology, Long School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Janet Wiegand
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
| | - Peiyi Zhang
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
| | - Maria Zajac-Kaye
- Department of Anatomy & Cell Biology, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Frederic J. Kaye
- Division of Hematology and Oncology, Department of Medicine, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Guangrong Zheng
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
| | - Daohong Zhou
- Department of Biochemistry & Structural Biology, Long School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
- Mays Cancer Center, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| |
Collapse
|
5
|
Khan S, Cao L, Wiegand J, Zhang P, Zajac-Kaye M, Kaye FJ, Zheng G, Zhou D. PROTAC-mediated dual degradation of BCL-xL and BCL-2 is a highly effective therapeutic strategy in small-cell lung cancer. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.27.582353. [PMID: 38464204 PMCID: PMC10925307 DOI: 10.1101/2024.02.27.582353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
BCL-xL and BCL-2 are validated therapeutic targets in small-cell lung cancer (SCLC). Targeting these proteins with navitoclax (formerly ABT263, a dual BCL-xL/2 inhibitor) induces dose-limiting thrombocytopenia through on-target BCL-xL inhibition in platelets. Therefore, platelet toxicity poses a barrier in advancing the clinical translation of navitoclax. We have developed a strategy to selectively target BCL-xL in tumors, while sparing platelets, by utilizing proteolysis-targeting chimeras (PROTACs) that hijack the cellular ubiquitin proteasome system for target ubiquitination and subsequent degradation. In our previous study, the first-in-class BCL-xL PROTAC, called DT2216, was shown to have synergistic antitumor activities when combined with venetoclax (formerly ABT199, BCL-2-selective inhibitor) in a BCL-xL/2 co-dependent SCLC cell line, NCI-H146 (hereafter referred to as H146), in vitro and in a xenograft model. Guided by these findings, we evaluated our newly developed BCL-xL/2 dual degrader, called 753b, in three BCL-xL/2 co-dependent SCLC cell lines and the H146 xenograft models. 753b was found to degrade both BCL-xL and BCL-2 in these cell lines. Importantly, it was considerably more potent than DT2216, navitoclax, or DT2216+venetoclax to reduce the viability of BCL-xL/2 co-dependent SCLC cell lines in cell culture. In vivo, 5 mg/kg weekly dosing of 753b leads to significant tumor growth delay similar to the DT2216+venetoclax combination in H146 xenografts by degrading both BCL-xL and BCL-2. Additionally, 753b administration at 5 mg/kg every four days induced tumor regressions. 753b at this dosage was well tolerated in mice without induction of severe thrombocytopenia as seen with navitoclax nor induced significant changes in mouse body weights. These results suggest that the BCL-xL/2 dual degrader could be an effective and safe therapeutic for a subset of SCLC patients warranting clinical trials in future.
Collapse
Affiliation(s)
- Sajid Khan
- Department of Biochemistry & Structural Biology, Long School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
- Mays Cancer Center, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Lin Cao
- Department of Biochemistry & Structural Biology, Long School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Janet Wiegand
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, Florida, USA
| | - Peiyi Zhang
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, Florida, USA
| | - Maria Zajac-Kaye
- Department of Anatomy & Cell Biology, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Frederic J. Kaye
- Division of Hematology and Oncology, Department of Medicine, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Guangrong Zheng
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, Florida, USA
| | - Daohong Zhou
- Department of Biochemistry & Structural Biology, Long School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
- Mays Cancer Center, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| |
Collapse
|
6
|
Aebisher D, Woźnicki P, Dynarowicz K, Kawczyk-Krupka A, Cieślar G, Bartusik-Aebisher D. Photodynamic Therapy and Immunological View in Gastrointestinal Tumors. Cancers (Basel) 2023; 16:66. [PMID: 38201494 PMCID: PMC10777986 DOI: 10.3390/cancers16010066] [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: 10/29/2023] [Revised: 12/13/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
Gastrointestinal cancers are a specific group of oncological diseases in which the location and nature of growth are of key importance for clinical symptoms and prognosis. At the same time, as research shows, they pose a serious threat to a patient's life, especially at an advanced stage of development. The type of therapy used depends on the anatomical location of the cancer, its type, and the degree of progression. One of the modern forms of therapy used to treat gastrointestinal cancers is PDT, which has been approved for the treatment of esophageal cancer in the United States. Despite the increasingly rapid clinical use of this treatment method, the exact immunological mechanisms it induces in cancer cells has not yet been fully elucidated. This article presents a review of the current understanding of the mode of action of photodynamic therapy on cells of various gastrointestinal cancers with an emphasis on colorectal cancer. The types of cell death induced by PDT include apoptosis, necrosis, and pyroptosis. Anticancer effects are also a result of the destruction of tumor vasculature and activation of the immune system. Many reports exist that concern the mechanism of apoptosis induction, of which the mitochondrial pathway is most often emphasized. Photodynamic therapy may also have a beneficial effect on such aspects of cancer as the ability to develop metastases or contribute to reducing resistance to known pharmacological agents.
Collapse
Affiliation(s)
- David Aebisher
- Department of Photomedicine and Physical Chemistry, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland
| | - Paweł Woźnicki
- Students English Division Science Club, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland
| | - Klaudia Dynarowicz
- Center for Innovative Research in Medical and Natural Sciences, Medical College of the University of Rzeszów, 35-310 Rzeszów, Poland;
| | - Aleksandra Kawczyk-Krupka
- Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia, Batorego 15 Street, 41-902 Bytom, Poland; (A.K.-K.); (G.C.)
| | - Grzegorz Cieślar
- Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia, Batorego 15 Street, 41-902 Bytom, Poland; (A.K.-K.); (G.C.)
| | - Dorota Bartusik-Aebisher
- Department of Biochemistry and General Chemistry, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland;
| |
Collapse
|
7
|
Chiou JT, Wu YY, Lee YC, Chang LS. BCL2L1 inhibitor A-1331852 inhibits MCL1 transcription and triggers apoptosis in acute myeloid leukemia cells. Biochem Pharmacol 2023; 215:115738. [PMID: 37562509 DOI: 10.1016/j.bcp.2023.115738] [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] [Received: 04/13/2023] [Revised: 08/04/2023] [Accepted: 08/07/2023] [Indexed: 08/12/2023]
Abstract
BH3 mimetics exert anticancer activity by inhibiting anti-apoptotic BCL2 proteins. However, accumulating evidence indicates that the off-target effects of these drugs tightly modulates their anticancer activities. In this study, we investigated whether the BCL2L1 inhibitor A-1331852 induced the death of U937 acute myeloid leukemia (AML) cells through a non-BCL2L1-targeted effect. A-1331852-induced apoptosis in U937 cells was characterized by increased ROS production, downregulation of MCL1, and loss of mitochondrial membrane potential. Ectopic expression of MCL1 alleviated A-1331852-induced mitochondrial depolarization and cytotoxicity in U937 cells. A-1331852-induced ROS production increased p38 MAPK phosphorylation and inhibited MCL1 transcription. Inhibition of p38 MAPK activation restored MCL1 expression in A-1331852-treated cells. A-1331852 triggered p38 MAPK-mediated Cullin 3 downregulation, which in turn increased PP2Acα expression, thereby reducing CREB phosphorylation. A-1331852 reduced the binding of CREB to the MCL1 promoter, leading to the inhibition of CREB-mediated MCL1 transcription. Furthermore, A-1331852 acted synergistically with the BCL2 inhibitor ABT-199 to induce U937 and ABT-199-resistant U937 cell death by inhibiting MCL1 expression. A similar phenomenon caused A-1331852-induced MCL1 downregulation and cytotoxicity in AML HL-60 cells. Collectively, our data suggest that A-1331852 shows an off-target effect of inhibiting MCL1 transcription, ultimately leading to U937 and HL-60 cell death.
Collapse
Affiliation(s)
- Jing-Ting Chiou
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Yu-Ying Wu
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Yuan-Chin Lee
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Long-Sen Chang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| |
Collapse
|
8
|
Wei Y, Zhang L, Wang C, Li Z, Luo M, Xie G, Yang X, Li M, Ren S, Zhao D, Gao R, Gong J. Anti-apoptotic protein BCL-XL as a therapeutic vulnerability in gastric cancer. Animal Model Exp Med 2023; 6:245-254. [PMID: 37271936 PMCID: PMC10272913 DOI: 10.1002/ame2.12330] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/08/2023] [Indexed: 06/06/2023] Open
Abstract
BACKGROUND New therapeutic targets are needed to improve the outcomes for gastric cancer (GC) patients with advanced disease. Evasion of programmed cell death (apoptosis) is a hallmark of cancer cells and direct induction of apoptosis by targeting the pro-survival BCL2 family proteins represents a promising therapeutic strategy for cancer treatment. Therefore, understanding the molecular mechanisms underpinning cancer cell survival could provide a molecular basis for potential therapeutic interventions. METHOD Here we explored the role of BCL2L1 and the encoded anti-apoptotic BCL-XL in GC. Using Droplet Digital PCR (ddPCR) technology to investigate the DNA amplification of BCL2L1 in GC samples and GC cell lines, the sensitivity of GC cell lines to selective BCL-XL inhibitors A1155463 and A1331852, pan-inhibitor ABT-263, and VHL-based PROTAC-BCL-XL was analyzed using (CellTiter-Glo) CTG assay in vitro. Western Blot (WB) was used to detect the protein expression of BCL2 family members in GC cell lines and the manner in which PROTAC-BCL-XL kills GC cells. Co-immunoprecipitation (Co-IP) was used to investigate the mechanism of A1331852 and ABT-263 kills GC cell lines. DDPCR, WB, and real-time PCR (RTPCR) were used to investigate the correlation between DNA, RNA, protein levels, and drug activity. RESULTS The functional assay showed that a subset of GC cell lines relies on BCL-XL for survival. In gastric cancer cell lines, BCL-XL inhibitors A1155463 and A1331852 are more sensitive than the pan BCL2 family inhibitor ABT-263, indicating that ABT-263 is not an optimal inhibitor of BCL-XL. VHL-based PROTAC-BCL-XL DT2216 appears to be active in GC cells. DT2216 induces apoptosis of gastric cancer cells in a time- and dose-dependent manner through the proteasome pathway. Statistical analysis showed that the BCL-XL protein level predicts the response of GC cells to BCL-XL targeting therapy and BCL2L1 gene CNVs do not reliably predict BCL-XL expression. CONCLUSION We identified BCL-XL as a promising therapeutic target in a subset of GC cases with high levels of BCL-XL protein expression. Functionally, we demonstrated that both selective BCL-XL inhibitors and VHL-based PROTAC BCL-XL can potently kill GC cells that are reliant on BCL-XL for survival. However, we found that BCL2L1 copy number variations (CNVs) cannot reliably predict BCL-XL expression, but the BCL-XL protein level serves as a useful biomarker for predicting the sensitivity of GC cells to BCL-XL-targeting compounds. Taken together, our study pinpointed BCL-XL as potential druggable target for specific subsets of GC.
Collapse
Affiliation(s)
- Yumin Wei
- National Human Diseases Animal Model Resource Center, The Institute of Laboratory Animal ScienceChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingChina
- NHC Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
| | - Liping Zhang
- National Human Diseases Animal Model Resource Center, The Institute of Laboratory Animal ScienceChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingChina
- NHC Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
| | - Chao Wang
- National Human Diseases Animal Model Resource Center, The Institute of Laboratory Animal ScienceChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingChina
- NHC Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
| | - Zefeng Li
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Mingjie Luo
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic CenterSun Yat‐Sen UniversityGuangzhouChina
| | - Guomin Xie
- National Human Diseases Animal Model Resource Center, The Institute of Laboratory Animal ScienceChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingChina
- NHC Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
| | - Xingjiu Yang
- National Human Diseases Animal Model Resource Center, The Institute of Laboratory Animal ScienceChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingChina
- NHC Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
| | - Mengyuan Li
- National Human Diseases Animal Model Resource Center, The Institute of Laboratory Animal ScienceChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingChina
- NHC Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
| | - Shuyue Ren
- National Human Diseases Animal Model Resource Center, The Institute of Laboratory Animal ScienceChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingChina
- NHC Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
| | - Dongbing Zhao
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina
| | - Ran Gao
- National Human Diseases Animal Model Resource Center, The Institute of Laboratory Animal ScienceChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingChina
- NHC Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
| | - Jia‐Nan Gong
- National Human Diseases Animal Model Resource Center, The Institute of Laboratory Animal ScienceChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingChina
- NHC Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
| |
Collapse
|
9
|
Chiou JT, Hsu CC, Hong YC, Lee YC, Chang LS. Cytarabine-induced destabilization of MCL1 mRNA and protein triggers apoptosis in leukemia cells. Biochem Pharmacol 2023; 211:115494. [PMID: 36924905 DOI: 10.1016/j.bcp.2023.115494] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/11/2023] [Accepted: 03/03/2023] [Indexed: 03/17/2023]
Abstract
Although cytarabine (Ara-C) is the mainstay of treatment for acute myeloid leukemia (AML), its cytotoxic mechanisms for inducing apoptosis are poorly understood. Therefore, we investigated the Ara-C-induced cell death pathway in human AML U937 cells. Ara-C-induced downregulation of MCL1 is associated with the induction of mitochondrial depolarization and apoptosis. Ara-C triggered NOX4-mediated ROS production, which in turn activated p38 MAPK but inactivated AKT. Ara-C-induced DNA damage modulates p38 MAPK activation without affecting AKT inactivation in U937 cells. Inactivated AKT promotes GSK3β-dependent CREB phosphorylation, which in turn increases NOXA transcription, thereby triggering the degradation of MCL1 protein. Activated p38 MAPK induces HuR downregulation, leading to accelerated MCL1 mRNA turnover. A similar pathway also explains the Ara-C-induced THP-1 cell death. Collectively, our data confirm that Ara-C-triggered apoptosis in the AML cell lines U937 and THP-1 is mediated through the destabilization of MCL1 mRNA and protein. Furthermore, Ara-C acts synergistically with the BCL2 inhibitor ABT-199 to induce cell death in ABT-199-resistant and parental U937 cells by inhibiting MCL1 expression.
Collapse
Affiliation(s)
- Jing-Ting Chiou
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Chia-Chi Hsu
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Ying-Chung Hong
- Division of Hematology/Oncology, Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan
| | - Yuan-Chin Lee
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Long-Sen Chang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| |
Collapse
|
10
|
Yi X, Jain N, Iles LR, Ayres ML, Wierda WG, Gandhi V. Targeting Mcl-1 by AMG-176 During Ibrutinib and Venetoclax Therapy in Chronic Lymphocytic Leukemia. Front Oncol 2022; 12:833714. [PMID: 35273915 PMCID: PMC8901605 DOI: 10.3389/fonc.2022.833714] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 01/12/2022] [Indexed: 11/13/2022] Open
Abstract
B-cell receptor (BCR) signaling pathway and Bcl-2 family prosurvival proteins, specifically Bcl-2 and Mcl-1, are functional in the pathobiology of chronic lymphocytic leukemia (CLL). A pivotal and apical molecule in the BCR pathway is Bruton’s tyrosine kinase (BTK). Together, BTK, Bcl-2, and Mcl-1 participate in the maintenance, migration, proliferation, and survival of CLL cells. Several ongoing and published clinical trials in CLL reported high rates of remission, namely, undetectable measurable residual disease (u-MRD) status with combined BTK inhibitor ibrutinib and Bcl-2 antagonist, venetoclax. While the majority of patients achieve complete remission with undetectable-measurable residual disease, at least one third of patients do not achieve this milestone. We hypothesized that cells persistent during ibrutinib and venetoclax therapy may be sensitive to combined venetoclax and Mcl-1 inhibitor, AMG-176. To test this hypothesis, we took peripheral blood samples at baseline, after Cycle 1 and Cycle 3 of ibrutinib monotherapy, after one week and 1 cycle of ibrutinib plus venetoclax therapy. These serial samples were tested for pharmacodynamic changes and treated in vitro with AMG-176 or in combination with venetoclax. Compared to C1D1 cells, residual cells during ibrutinib and venetoclax treatment were inherently resistant to endogenous cell death. Single agent exposure induced some apoptosis but combination of 100 nM venetoclax and 100 or 300 nM of AMG-176 resulted in 40–100% cell death in baseline samples. Cells obtained after four cycles of ibrutinib and one cycle of venetoclax, when treated with such concentration of venetoclax and AMG-176, showed 10–80% cell death. BCR signaling pathway, measured as autophosphorylation of BTK was inhibited throughout therapy in all post-therapy samples. Among four anti-apoptotic proteins, Mcl-1 and Bfl-1 decreased during therapy in most samples. Proapoptotic proteins decreased during therapy. Collectively, these data provide a rationale to test Mcl-1 antagonists alone or in combination in CLL during treatment with ibrutinib and venetoclax.
Collapse
Affiliation(s)
- Xue Yi
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Nitin Jain
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - LaKesla R Iles
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Mary L Ayres
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - William G Wierda
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Varsha Gandhi
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.,Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| |
Collapse
|
11
|
Li X, Zhou DY, Li FT, Jiang YF, Dai YL, Jeon YJ. Saringosterol Acetate Isolated from Sargassum fusiformis Induces Mitochondrial-Mediated Apoptosis in MCF-7 Breast Cancer Cells. Chem Biodivers 2022; 19:e202100848. [PMID: 34997687 DOI: 10.1002/cbdv.202100848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 01/06/2022] [Indexed: 11/08/2022]
Abstract
Sargassum fusiformis is among the most important edible brown seaweeds in Eastern Asia that contains various bioactive compounds and strong activities. Saringosterol acetate (SA) was successfully isolated from S. fusiformis in our previous research. In this study, SA was investigated for its anticancer effect on MCF-7 breast cancer cells. SA attenuated the survival rate of MCF-7 cells with an IC50 value of 63.16±3.6 μg/mL. Staining with Hoechst 33342 demonstrated that SA treatment mediated apoptotic body generation. SA significantly downregulated Bcl-xL and upregulated Bax, and cleaved PARP, and cleaved caspase 3 in a dose-dependent manner. Thus, these results suggest that SA induced mitochondria-mediated apoptosis in MCF-7 cells, making it a plausible candidate for drug development against breast cancer.
Collapse
Affiliation(s)
- Xue Li
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Dong-Yue Zhou
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Fang-Tong Li
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Yun-Fei Jiang
- Changchun Sci-Tech University, Changchun, 130600, China
| | - Yu-Lin Dai
- Jilin Ginseng Academy, Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun, 130117, China
- Department of Marine Life Science, Jeju National University, Jeju, 63243, Republic of Korea
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju, 63243, Republic of Korea
- Marine Science Institute, Jeju National University, Jeju, 63333, Republic of Korea
| |
Collapse
|
12
|
Selenium abates manganese-induced striatal and hippocampal toxicity via abrogation of neurobehavioral deficits, biometal accumulation, oxidative stress, inflammation, and caspase-3 activation in rats. Psychopharmacology (Berl) 2022; 239:399-412. [PMID: 34714396 DOI: 10.1007/s00213-021-06010-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 10/17/2021] [Indexed: 12/30/2022]
Abstract
Excessive exposure to manganese (Mn) is associated with neurotoxicity characterized by oxidative stress, inflammation, and apoptosis induction. Selenium (Se) has been shown to possess antioxidant, anti-inflammatory, and anti-apoptotic properties in humans and animals. The present study investigated the neuroprotective mechanism of Se in rats sub-chronically treated with Mn at 30 mg/kg body weight or orally co-treated with Se at 0.2 and 0.4 mg/kg body weight for 35 consecutive days. Locomotive and exploratory profiles were recorded and computed with the aid of ANY-Maze (a video-tracking software) for 5-min trial, in a novel apparatus. The ANY-Maze analysis showed that Se significantly (p < 0.05) abated Mn-induced locomotive impairment evidenced by increased in maximum speed, total time traveled, absolute turn angle, number of line crossing, rotation and forelimb grip and decreased total time immobile, grooming, and negative geotaxis as verified by the enhanced track plot density. Furthermore, the striatum and hippocampus of the rats were excised and the levels of Mn and Se, oxidative stress markers, proinflammatory cytokines including acetylcholinesterase and caspase-3 activities were assayed. The result shows that Se abates Mn-mediated accumulation of Mn. Also, Se ameliorated Mn-induced decrease in antioxidant enzymes as well as glutathione level and increase in acetylcholinesterase activity, lipid peroxidation, proinflammatory cytokines (i.e., interleukin (IL)-6, IL-1β, tumor necrosis factor alpha), and caspase-3 activation in the striatum and hippocampus of the rats. Collectively, Se abated Mn-induced striatal and hippocampal toxicity via abrogation of neurobehavioral deficits, biometal accumulation, oxidative stress, inflammation, and caspase-3 activation in rats. Se may serve as a neuroprotective agent against Mn-mediated neurotoxicity.
Collapse
|
13
|
Sandberg AA, Manning E, Wilkins HM, Mazzarino R, Minckley T, Swerdlow RH, Patterson D, Qin Y, Linseman DA. Mitochondrial Targeting of Amyloid-β Protein Precursor Intracellular Domain Induces Hippocampal Cell Death via a Mechanism Distinct from Amyloid-β. J Alzheimers Dis 2022; 86:1727-1744. [PMID: 35253745 PMCID: PMC10084495 DOI: 10.3233/jad-215108] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Amyloid-β (Aβ) is a principal cleavage product of amyloid-β protein precursor (AβPP) and is widely recognized as a key pathogenic player in Alzheimer's disease (AD). Yet, there is increasing evidence of a neurotoxic role for the AβPP intracellular domain (AICD) which has been proposed to occur through its nuclear function. Intriguingly, there is a γ-secretase resident at the mitochondria which could produce AICD locally. OBJECTIVE We examined the potential of AICD to induce neuronal apoptosis when targeted specifically to the mitochondria and compared its mechanism of neurotoxicity to that of Aβ. METHODS We utilized transient transfection of HT22 neuronal cells with bicistronic plasmids coding for DsRed and either empty vector (Ires), Aβ, AICD59, or mitochondrial-targeted AICD (mitoAICD) in combination with various inhibitors of pathways involved in apoptosis. RESULTS AICD induced significant neuronal apoptosis only when targeted to the mitochondria. Apoptosis required functional mitochondria as neither Aβ nor mitoAICD induced significant toxicity in cells devoid of mitochondrial DNA. Both glutathione and a Bax inhibitor protected HT22 cells from either peptide. However, inhibition of the mitochondrial permeability transition pore only protected from Aβ, while pan-caspase inhibitors uniquely rescued cells from mitoAICD. CONCLUSION Our results show that AICD displays a novel neurotoxic function when targeted to mitochondria. Moreover, mitoAICD induces apoptosis via a mechanism that is distinct from that of Aβ. These findings suggest that AICD produced locally at mitochondria via organelle-specific γ-secretase could act in a synergistic manner with Aβ to cause mitochondrial dysfunction and neuronal death in AD.
Collapse
Affiliation(s)
- Alexandra A. Sandberg
- Department of Biological Sciences, University of Denver, 2199 S. University Blvd., Denver, CO, USA
| | - Evan Manning
- Department of Biological Sciences, University of Denver, 2199 S. University Blvd., Denver, CO, USA
| | - Heather M. Wilkins
- Department of Biological Sciences, University of Denver, 2199 S. University Blvd., Denver, CO, USA
- Department of Neurology, University of Kansas Alzheimer’s Disease Center, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS, USA
| | - Randall Mazzarino
- Department of Biological Sciences, University of Denver, 2199 S. University Blvd., Denver, CO, USA
| | - Taylor Minckley
- Department of Biological Sciences, University of Denver, 2199 S. University Blvd., Denver, CO, USA
| | - Russell H. Swerdlow
- Department of Neurology, University of Kansas Alzheimer’s Disease Center, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS, USA
| | - David Patterson
- Knoebel Institute for Healthy Aging and Eleanor Roosevelt Institute, University of Denver, 2155 E. Wesley Ave., Denver, CO, USA
| | - Yan Qin
- Department of Biological Sciences, University of Denver, 2199 S. University Blvd., Denver, CO, USA
| | - Daniel A. Linseman
- Department of Biological Sciences, University of Denver, 2199 S. University Blvd., Denver, CO, USA
- Knoebel Institute for Healthy Aging and Eleanor Roosevelt Institute, University of Denver, 2155 E. Wesley Ave., Denver, CO, USA
| |
Collapse
|
14
|
DAI YL, ZHOU DY, JIANG YF, ZHENG F, YUE H, You-Jin JEON. 6-Bromohypaphorine isolated from red sea cucumbers Apostichopus japonicus exhibits potent anticancer activity in A549 cancer cell line. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1016/j.cjac.2021.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
15
|
Chen Y, Qie X, Quan W, Zeng M, Qin F, Chen J, Adhikari B, He Z. Omnifarious fruit polyphenols: an omnipotent strategy to prevent and intervene diabetes and related complication? Crit Rev Food Sci Nutr 2021:1-37. [PMID: 34792409 DOI: 10.1080/10408398.2021.2000932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Diabetes mellitus is a metabolic syndrome which cannot be cured. Recently, considerable interest has been focused on food ingredients to prevent and intervene in complications of diabetes. Polyphenolic compounds are one of the bioactive phytochemical constituents with various biological activities, which have drawn increasing interest in human health. Fruits are part of the polyphenol sources in daily food consumption. Fruit-derived polyphenols possess the anti-diabetic activity that has already been proved either from in vitro studies or in vivo studies. The mechanisms of fruit polyphenols in treating diabetes and related complications are under discussion. This is a comprehensive review on polyphenols from the edible parts of fruits, including those from citrus, berries, apples, cherries, mangoes, mangosteens, pomegranates, and other fruits regarding their potential benefits in preventing and treating diabetes mellitus. The signal pathways of characteristic polyphenols derived from fruits in reducing high blood glucose and intervening hyperglycemia-induced diabetic complications were summarized.
Collapse
Affiliation(s)
- Yao Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
| | - Xuejiao Qie
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
| | - Wei Quan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
| | - Maomao Zeng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
| | - Fang Qin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
| | - Jie Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
| | - Benu Adhikari
- School of Science, RMIT University, Melbourne, Victoria, Australia
| | - Zhiyong He
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu, China
| |
Collapse
|
16
|
Li W, Ding Z, Zhao Y, Jiang M, Zhang S, Zhao H, Lei K, Xu R, Zhao Y, Wang D, Chao M, Yin Y, Yang C, Wang L, Yan M. Novel Natural Inhibitors Targeting Enhancer of Zeste Homolog 2: A Comprehensive Structural Biology Research. Front Oncol 2021; 11:741403. [PMID: 34737956 PMCID: PMC8560702 DOI: 10.3389/fonc.2021.741403] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/28/2021] [Indexed: 01/24/2023] Open
Abstract
The enhancer of zeste homolog 2 (EZH2) is a methylated modification enzyme of Histone H3-Lys 27. The high expression of EZH2 in cells is closely related to the progression, invasion, and metastasis of neoplasm. Therefore, this target is gradually becoming one of the research hot spots of tumor pathogenesis, and the inhibitors of the EZH2 enzyme are expected to become new antitumor drugs. This study used a series of virtual screening technologies to calculate the affinity between the compounds obtained from the ZINC15 database and the target protein EZH2, the stability of the ligand–receptor complex. This experiment also predicted the toxicity and absorption, distribution, metabolism, and excretion (ADME) properties of the candidate drugs in order to obtain compounds with excellent pharmacological properties. Finally, the ligand–receptor complex under in vivo situation was estimated by molecular dynamics simulation to observe whether the complex could exist steadily in the body. The experimental results showed that the two natural compounds ZINC000004217536 and ZINC000003938642 could bind tightly to EZH2, and the ligand–receptor complex could exist stably in vivo. Moreover, these two compounds were calculated to be nontoxic. They also had a high degree of intestinal absorption and high bioavailability. In vitro experiments confirmed that drug ZINC000003938642 could inhibit the proliferation and migration of osteosarcoma, which could serve as potential lead compounds. Therefore, the discovery of these two natural products had broad prospects in the development of EZH2 inhibitors, providing new clues for the treatment or adjuvant treatment of tumors.
Collapse
Affiliation(s)
- Weihang Li
- Department of Orthopedic Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Ziyi Ding
- Department of Orthopedic Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yunlong Zhao
- College of Clinical Medicine, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Min Jiang
- Department of General Surgery, Zhen an County People's Hospital, Shangluo, China
| | - Shilei Zhang
- Department of Orthopedic Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Hongzhe Zhao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Ke Lei
- Department of Orthopedic Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Rui Xu
- Department of Endocrinology, Shanghai National Research Center for Endocrine and Metabolic Disease, State Key Laboratory of Medical Genomics, Shanghai Institute for Endocrine and Metabolic Disease, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yingjing Zhao
- Department of Intensive Care Unit, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Dong Wang
- Department of Orthopedic Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Min Chao
- Department of Neurosurgery, Tangdu Hospital of Fourth Military Medical University, Xi'an, China
| | - Yanjiang Yin
- Department of Hepatobiliary Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Changbin Yang
- Military Medical Innovation Center, The Fourth Military Medical University, Xi'an, China
| | - Liang Wang
- Department of Neurosurgery, Tangdu Hospital of Fourth Military Medical University, Xi'an, China
| | - Ming Yan
- Department of Orthopedic Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| |
Collapse
|
17
|
Alam S, Mohammad T, Padder RA, Hassan MI, Husain M. Thymoquinone and quercetin induce enhanced apoptosis in non-small cell lung cancer in combination through the Bax/Bcl2 cascade. J Cell Biochem 2021; 123:259-274. [PMID: 34636440 DOI: 10.1002/jcb.30162] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 09/22/2021] [Accepted: 09/30/2021] [Indexed: 12/29/2022]
Abstract
The treatments available for non-small cell lung cancer exert various side effects in patients, and the burden of treatment cost is high. Therefore, exploring the alternative system of medicines, including therapies based on natural compounds, has become inevitable in developing anticancer therapeutics. This study used an integrated approach involving in-silico and in-vitro methods to explore natural compounds targeting Bax and Bcl2 for their apoptotic potential. Molecular docking followed by molecular dynamics (MD) simulation of thymoquinone (Tq) and quercetin (Qu) with Bax and Bcl2 were carried out to explore their interactions and stability under explicit solvent conditions. Tq and Qu showed appreciable binding affinities toward Bax (-6.2 and -7.1 kcal/mol, respectively) and Bcl2 (-5.6 and -6.4 kcal/mol, respectively) with well-organized conformational fitting compatibility. The MD simulation results revealed the development of stable complexes maintained by various noncovalent interactions that were preserved throughout the 100 ns trajectories. Further studies with these compounds were carried out using various in-vitro experimental approaches like MTT assay, apoptotic assay, and Western blot. IC50 values of Tq and Qu alone in A549 cells were found to be 45.78 and 35.69 µM, while in combination, it comes down to 22.49 µM, which is quite impressive. Similarly, in apoptosis assay, a combination of Tq and Qu shows 50.9% early apoptosis compared to Tq (40.6%) and Qu (33.3%) when taken alone. These assays signify their apoptotic induction potential, whereas both compounds significantly reduce the expression of antiapoptotic protein Bcl2 and induce proapoptotic Bax, suggestive of sensitizing NSCLS cells toward apoptosis.
Collapse
Affiliation(s)
- Shoaib Alam
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, India
| | - Taj Mohammad
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Rayees A Padder
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, India
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Mohammad Husain
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, India
| |
Collapse
|
18
|
Lin XM, Shi XX, Xiong L, Nie JH, Ye HS, Du JZ, Liu J. Construction of IL-13 Receptor α2-Targeting Resveratrol Nanoparticles against Glioblastoma Cells: Therapeutic Efficacy and Molecular Effects. Int J Mol Sci 2021; 22:ijms221910622. [PMID: 34638961 PMCID: PMC8508707 DOI: 10.3390/ijms221910622] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/26/2021] [Accepted: 09/27/2021] [Indexed: 12/20/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common lethal primary brain malignancy without reliable therapeutic drugs. IL-13Rα2 is frequently expressed in GBMs as a molecular marker. Resveratrol (Res) effectively inhibits GBM cell growth but has not been applied in vivo because of its low brain bioavailability when administered systemically. A sustained-release and GBM-targeting resveratrol form may overcome this therapeutic dilemma. To achieve this goal, encapsulated Res 30 ± 4.8 nm IL-13Rα2-targeting nanoparticles (Pep-PP@Res) were constructed. Ultraviolet spectrophotometry revealed prolonged Res release (about 25%) from Pep-PP@Res in 48 h and fluorescent confocal microscopy showed the prolonged intracellular Res retention time of Pep-PP@Res (>24 h) in comparison with that of free Res (<4 h) and PP@Res (<4 h). MTT and EdU cell proliferation assays showed stronger suppressive effects of Pep-PP@Res on rat C6 GBM cells than that of PP@Res (p = 0.024) and Res (p = 0.009) when used twice for 4 h/day. Pep-PP@Res had little toxic effect on normal rat brain cells. The in vivo anti-glioblastoma effects of Res can be distinctly improved in the form of Pep-PP@Res nanoparticles via activating JNK signaling, upregulating proapoptosis gene expression and, finally, resulting in extensive apoptosis. Pep-PP@Res with sustained release and GBM-targeting properties would be suitable for in vivo management of GBMs.
Collapse
Affiliation(s)
- Xiao-Min Lin
- Research Center, South China University of Technology (SCUT) School of Medicine, Guangzhou 510006, China; (X.-M.L.); (L.X.); (J.-H.N.); (H.-S.Y.)
| | - Xiao-Xiao Shi
- Institute of Life Sciences, South China University of Technology (SCUT) School of Medicine, Guangzhou 510006, China; (X.-X.S.); (J.-Z.D.)
| | - Le Xiong
- Research Center, South China University of Technology (SCUT) School of Medicine, Guangzhou 510006, China; (X.-M.L.); (L.X.); (J.-H.N.); (H.-S.Y.)
| | - Jun-Hua Nie
- Research Center, South China University of Technology (SCUT) School of Medicine, Guangzhou 510006, China; (X.-M.L.); (L.X.); (J.-H.N.); (H.-S.Y.)
| | - Hai-Shan Ye
- Research Center, South China University of Technology (SCUT) School of Medicine, Guangzhou 510006, China; (X.-M.L.); (L.X.); (J.-H.N.); (H.-S.Y.)
| | - Jin-Zi Du
- Institute of Life Sciences, South China University of Technology (SCUT) School of Medicine, Guangzhou 510006, China; (X.-X.S.); (J.-Z.D.)
| | - Jia Liu
- Research Center, South China University of Technology (SCUT) School of Medicine, Guangzhou 510006, China; (X.-M.L.); (L.X.); (J.-H.N.); (H.-S.Y.)
- Liaoning Laboratory of Cancer Genetics and Epigenetics, Dalian Medical University, Dalian 610044, China
- Correspondence: or ; Tel.: +20-3938-1176
| |
Collapse
|
19
|
Widden H, Placzek WJ. The multiple mechanisms of MCL1 in the regulation of cell fate. Commun Biol 2021; 4:1029. [PMID: 34475520 PMCID: PMC8413315 DOI: 10.1038/s42003-021-02564-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 08/16/2021] [Indexed: 01/11/2023] Open
Abstract
MCL1 (myeloid cell leukemia-1) is a widely recognized pro-survival member of the Bcl-2 (B-cell lymphoma protein 2) family and a promising target for cancer therapy. While the role MCL1 plays in apoptosis is well defined, its participation in emerging non-apoptotic signaling pathways is only beginning to be appreciated. Here, we synthesize studies characterizing MCL1s influence on cell proliferation, DNA damage response, autophagy, calcium handling, and mitochondrial quality control to highlight the broader scope that MCL1 plays in cellular homeostasis regulation. Throughout this review, we discuss which pathways are likely to be impacted by emerging MCL1 inhibitors, as well as highlight non-cancerous disease states that could deploy Bcl-2 homology 3 (BH3)-mimetics in the future. In this review Widden and Placzek synthesize studies characterizing the influence that myeloid cell leukemia-1 (MCL1) has on cell proliferation, DNA damage response, autophagy, calcium handling, and mitochondrial quality control to highlight the broader scope that it plays in cellular homeostasis regulation. They discuss which pathways are likely to be impacted by emerging MCL1 inhibitors, as well as highlight non-cancerous disease states that could deploy BH3-mimetics in the future.
Collapse
Affiliation(s)
- Hayley Widden
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL, USA
| | - William J Placzek
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL, USA.
| |
Collapse
|
20
|
Domostegui A, Peddigari S, Mercer CA, Iannizzotto F, Rodriguez ML, Garcia-Cajide M, Amador V, Diepstraten ST, Kelly GL, Salazar R, Kozma SC, Kusnadi EP, Kang J, Gentilella A, Pearson RB, Thomas G, Pelletier J. Impaired ribosome biogenesis checkpoint activation induces p53-dependent MCL-1 degradation and MYC-driven lymphoma death. Blood 2021; 137:3351-3364. [PMID: 33512431 PMCID: PMC8212515 DOI: 10.1182/blood.2020007452] [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] [Received: 06/08/2020] [Accepted: 12/24/2020] [Indexed: 12/11/2022] Open
Abstract
MYC-driven B-cell lymphomas are addicted to increased levels of ribosome biogenesis (RiBi), offering the potential for therapeutic intervention. However, it is unclear whether inhibition of RiBi suppresses lymphomagenesis by decreasing translational capacity and/or by p53 activation mediated by the impaired RiBi checkpoint (IRBC). Here we generated Eμ-Myc lymphoma cells expressing inducible short hairpin RNAs to either ribosomal protein L7a (RPL7a) or RPL11, the latter an essential component of the IRBC. The loss of either protein reduced RiBi, protein synthesis, and cell proliferation to similar extents. However, only RPL7a depletion induced p53-mediated apoptosis through the selective proteasomal degradation of antiapoptotic MCL-1, indicating the critical role of the IRBC in this mechanism. Strikingly, low concentrations of the US Food and Drug Administration-approved anticancer RNA polymerase I inhibitor Actinomycin D (ActD) dramatically prolonged the survival of mice harboring Trp53+/+;Eμ-Myc but not Trp53-/-;Eμ-Myc lymphomas, which provides a rationale for treating MYC-driven B-cell lymphomas with ActD. Importantly, the molecular effects of ActD on Eμ-Myc cells were recapitulated in human B-cell lymphoma cell lines, highlighting the potential for ActD as a therapeutic avenue for p53 wild-type lymphoma.
Collapse
Affiliation(s)
- Ana Domostegui
- Laboratory of Cancer Metabolism, Molecular Mechanisms and Experimental Therapy in Oncology Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
| | - Suresh Peddigari
- Division of Hematology Oncology, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH
| | - Carol A Mercer
- Division of Hematology Oncology, Department of Internal Medicine, University of Cincinnati, Cincinnati, OH
| | - Flavia Iannizzotto
- Laboratory of Cancer Metabolism, Molecular Mechanisms and Experimental Therapy in Oncology Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
| | - Marta L Rodriguez
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Marta Garcia-Cajide
- Laboratory of Cancer Metabolism, Molecular Mechanisms and Experimental Therapy in Oncology Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
| | - Virginia Amador
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Barcelona, Spain
| | - Sarah T Diepstraten
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Gemma L Kelly
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Ramón Salazar
- Catalan Institute of Oncology, Molecular Mechanisms and Experimental Therapy in Oncology Program, IDIBELL, Barcelona, Spain
| | - Sara C Kozma
- Laboratory of Cancer Metabolism, Molecular Mechanisms and Experimental Therapy in Oncology Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
| | - Eric P Kusnadi
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
| | - Jian Kang
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
| | - Antonio Gentilella
- Laboratory of Cancer Metabolism, Molecular Mechanisms and Experimental Therapy in Oncology Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
- Department of Biochemistry and Physiology, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain
| | - Richard B Pearson
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
- Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia; and
| | - George Thomas
- Laboratory of Cancer Metabolism, Molecular Mechanisms and Experimental Therapy in Oncology Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
- Department of Physiological Sciences, Faculty of Medicine and Health Science, University of Barcelona, Barcelona, Spain
| | - Joffrey Pelletier
- Laboratory of Cancer Metabolism, Molecular Mechanisms and Experimental Therapy in Oncology Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
| |
Collapse
|
21
|
Luo Y, Fu X, Han B, Zhang F, Yuan L, Men H, Zhang S, Tian S, Dong B, Meng M. The Apoptosis Mechanism of Epirubicin Combined with BCG on Human Bladder Cancer Cells. Anticancer Agents Med Chem 2021; 20:1571-1581. [PMID: 32357825 DOI: 10.2174/1871520620666200502004002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 01/11/2020] [Accepted: 02/28/2020] [Indexed: 11/22/2022]
Abstract
AIMS The purpose of our study was to explore the combination effect of epirubicin and Bacillus Calmette Guerin (BCG) and its mechanism. BACKGROUND Bladder cancer is a threat to human health worldwide. Commonly used chemotherapy drugs and biotherapy have significant therapeutic effects on bladder cancer, but the mechanism and combined effects are still unclear. OBJECTIVE To evaluate the anti-cancer effect of epirubicin combined with BCG on human bladder cancer cells, our studies were carried out. METHODS The viability of human bladder cancer cells with epirubicin and/or BCG treatments was examined by Cell Counting Kit-8 (CCK-8) assay. Apoptosis and cell cycle phase were determined by flow cytometry analysis. Pre-apoptosis factors of caspase-3, p53, B-cell lymphoma 2 associated X protein (Bax) and anti-apoptosis factor of B-cell lymphoma 2 (Bcl-2) were detected by western blot. RESULTS The viability of human bladder cancer with epirubicin or BCG treatment was decreased and the viability with epirubicin combined with BCG treatment was decreased more, which were determined by CCK-8 assay. Both epirubicin and BCG increased the apoptosis rate of human bladder cancer and arrested more cells into G0/G1 phase, which were tested by flow cytometry. The expression of caspase-3, p53 and Bax was increased and the expression of Bcl-2 was decreased with epirubicin treatment on human bladder cells, which were analyzed by western blot. The expression of caspase-3 and p53 was increased with BCG treatment, which was examined by western blot. CONCLUSION Epirubicin induced apoptosis in human bladder cancer cells by up-regulating the expression of proapoptotic factors (caspase-3, p53 and Bax) and down-regulating the expression of anti-apoptotic factor (Bcl-2). BCG promoted apoptosis of human bladder cancer cells by up-regulating the expression of caspase-3 and p53. BCG plays a potential role at the time of the combination of epirubicin and BCG on bladder cancer cells in early stage. Both epirubicin and BCG affected cell cycle distribution via arresting more bladder cancer cells at G0/G1 phase, which ultimately led bladder cancer proliferation in vitro and promoted apoptosis.
Collapse
Affiliation(s)
- Yang Luo
- School of Bioscience and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Xiaoyi Fu
- School of Bioscience and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Bin Han
- School of Bioscience and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Fafu Zhang
- School of Bioscience and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Lihong Yuan
- School of Bioscience and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | | | - Shulin Zhang
- Shanghai Jiao Tong University, Shanghai 200025, China
| | - Sujuan Tian
- School of Bioscience and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Bin Dong
- School of Bioscience and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Minjie Meng
- School of Bioscience and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| |
Collapse
|
22
|
Silencing of Mcl-1 overcomes resistance of melanoma cells against TRAIL-armed oncolytic adenovirus by enhancement of apoptosis. J Mol Med (Berl) 2021; 99:1279-1291. [PMID: 34028599 PMCID: PMC8367928 DOI: 10.1007/s00109-021-02081-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 04/01/2021] [Accepted: 04/20/2021] [Indexed: 12/12/2022]
Abstract
Abstract Arming of oncolytic viruses with tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has been shown as a viable approach to increase the antitumor efficacy in melanoma. However, melanoma cells may be partially or completely resistant to TRAIL or develop TRAIL resistance, thus counteracting the antitumor efficiency of TRAIL-armed oncolytic viruses. Recently, we found that TRAIL resistance in melanoma cells can be overcome by inhibition of antiapoptotic Bcl-2 protein myeloid cell leukemia 1 (Mcl-1). Here, we investigated whether the cytotoxicity of AdV-TRAIL, an oncolytic adenovirus, which expresses TRAIL after induction by doxycycline (Dox), can be improved in melanoma cells by silencing of Mcl-1. Two melanoma cell lines, the TRAIL-resistant MeWo and the TRAIL-sensitive Mel-HO were investigated. Treatment of both cell lines with AdV-TRAIL resulted in a decrease of cell viability, which was caused by an increase of apoptosis and necrosis. The proapoptotic effects were dependent on induction of TRAIL by Dox and were more pronounced in Mel-HO than in MeWo cells. SiRNA-mediated silencing of Mcl-1 resulted in a further significant decrease of cell viability and a further increase of apoptosis and necrosis in AdV-TRAIL-infected MeWo and Mel-HO cells. However, while in absolute terms, the effects were more pronounced in Mel-HO cells, in relative terms, they were stronger in MeWo cells. These results show that silencing of Mcl-1 represents a suitable approach to increase the cytotoxicity of a TRAIL-armed oncolytic adenovirus in melanoma cells. Key messages • Cytotoxicity of TRAIL-expressing adenovirus can be enhanced by silencing of Mcl-1. • The effect occurs in TRAIL-sensitive and TRAIL-resistant melanoma cells. • Increase of apoptosis is the main mechanism induced by Mcl-1 silencing. Supplementary Information The online version contains supplementary material available at 10.1007/s00109-021-02081-3.
Collapse
|
23
|
Dai YL, Jiang YF, Lu YA, Kang MC, Jeon YJ. Fucoidan from acid-processed Hizikia fusiforme attenuates oxidative damage and regulate apoptosis. Int J Biol Macromol 2020; 160:390-397. [PMID: 32446896 DOI: 10.1016/j.ijbiomac.2020.05.143] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 05/05/2020] [Accepted: 05/18/2020] [Indexed: 12/17/2022]
Abstract
We had observed in our previous study that the active fucoidan (JHCF4), isolated from the crude fucoidan in acid-processed Hizikia fusiforme, possessed an anticancer effect. In this study, the antioxidant effect of JHCF4 was evaluated. Among the fractions, JHCF4 showed the highest scavenging activity against 2, 2-diphenyl-1-picrylhydrazyl (DPPH), alkyl, and hydroxyl radicals, as well as protective effect against reactive oxygen species (ROS) in 2, 2'-azobis (2-amidinopropane) dihydrochloride (AAPH)-treated Vero cells. Furthermore, JHCF4 showed a protective activity against AAPH-induced apoptosis, as observed by nuclear staining with Hoechst 33342. Our results showed that JHCF4 can up-regulate Bcl-xL, down-regulate Bax and cleave caspase-3 with increased concentrations in AAPH-induced Vero cells. JHCF4 induced anti-apoptosis via a mitochondria-mediated pathway. Additionally, JHCF4 was selected for further in vivo screening in a zebrafish model, which markedly decreased ROS generation and lipid peroxidation. Thus, JHCF4 showed a potential protective activity against AAPH-induced ROS both in vitro and in the zebrafish model.
Collapse
Affiliation(s)
- Yu-Lin Dai
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China; Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea.
| | - Yun-Fei Jiang
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea
| | - Yu-An Lu
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea
| | - Min-Cheol Kang
- Research group of Food Processing, Research Division of Strategic Food Technology, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea.
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju 63333, Republic of Korea.
| |
Collapse
|
24
|
Aghaei M, Khanahmad H, Aghaei S, Hosseini SM, Farahmand M, Hejazi SH. Evaluation of transgenic Leishmania infantum expressing mLLO-BAX-SMAC in the apoptosis of the infected macrophages in vitro and in vivo. Parasite Immunol 2020; 42:e12726. [PMID: 32367588 DOI: 10.1111/pim.12726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 03/31/2020] [Accepted: 04/28/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Leishmaniasis is an important infectious disease that develops because of escaping parasite from the host immune system or preventing host macrophages apoptosis. Recently, the development of transgenic methods and the manipulation of the parasite genome has provided many advantages. So, in this study, the effect of the transgenic Leishmania infantum expressing mLLO-BAX-SMAC proteins was examined in accelerating host cell apoptosis. METHOD The entire coding sequence of designed codon-optimized mLLO-Bax-Smac was cloned in the pLexyNeo2 vector and integrated downstream of the 18srRNA locus of L infantum genome by homologous recombination. Next, the expression of mLLO-BAX-SMAC fusion protein was evaluated by the Western blotting technique and the pathogenesis of transgenic parasite was surveyed in vitro and in vivo. RESULTS The results of PCR and Western blot confirmed proper integration and expression of mLLO-Bax-Smac sequence into the 18srRNA locus of L infantum. Flow cytometry showed accelerating apoptosis of transgenic Leishmania-infected macrophages compared to wild-type parasite. Also, transgenic parasites were less virulent as a fewer parasitic burden was found in the spleen and liver of transgenic-infected mice compared to the control. CONCLUSION The data suggested that the transgenic L infantum expressing BAX-SMAC can be used as an experimental model for developing vaccination against leishmaniasis.
Collapse
Affiliation(s)
- Maryam Aghaei
- Skin Diseases and Leishmaniasis Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hossein Khanahmad
- Department of Genetics and molecular biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shahrzad Aghaei
- Department of Molecular Medicine, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Sayed Mohsen Hosseini
- Department of Biostatistics & Epidemiology, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahin Farahmand
- Department of Parasitology, Pasteur Institute of Iran, Tehran, Iran
| | - Seyed Hossein Hejazi
- Skin Diseases and Leishmaniasis Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Skin Diseases and Leishmaniasis Research Center, Department of Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
25
|
Effects of carboxymethyl chitosan oligosaccharide on regulating immunologic function and inhibiting tumor growth. Carbohydr Polym 2020; 250:116994. [PMID: 33049904 DOI: 10.1016/j.carbpol.2020.116994] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/15/2020] [Accepted: 08/23/2020] [Indexed: 02/07/2023]
Abstract
Herein, the effects of carboxymethyl chitosan oligosaccharide (CM-COS) on regulating immunologic function and inhibiting hepatocellular tumor growth were evaluated. Results showed that CM-COS caused dramatic viability loss of hepatocellular carcinoma BEL-7402 with non-toxicity towards normal liver L-02 cells. CM-COS repressed tumor growth of hepatoma-22, and elevated the spleen index and thymus index of tumor-bearing mice. Contents of VEGF and MMP-9 were significantly down-regulated by CM-COS. Histological analyses revealed that CM-COS promoted tumor cell necrosis and produced no significant toxicity to spleen tissues. Moreover, expressions of Caspase-3 in tumor tissues and IL-2 in spleen tissues were significantly activated by CM-COS. Additionally, in vitro cell viability, phagocytic capability and NO production of mouse peritoneal macrophages exposed to CM-COS were significantly higher. CM-COS remarkably increased the in vivo phagocytosing capacity of peritoneal macrophages of Kunming mice. Taken together, our findings suggested that CM-COS might be potentially effective and non-toxic candidate as anti-hepatoma agents.
Collapse
|
26
|
Dai H, Ma N, Chang G, Aabdin ZU, Shen X. Long-term high-concentrate diet feeding induces apoptosis of rumen epithelial cells and inflammation of rumen epithelium in dairy cows. Anim Biotechnol 2020; 33:289-296. [PMID: 32808856 DOI: 10.1080/10495398.2020.1806073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The aim of the present study was to evaluate how long-term high-concentrate diet feeding affected rumen epithelium (RE) of dairy cows. So, 12 mid-lactating multiparous cows were divided into two groups randomly fed either with high-concentrate diet (HC, concentrate: forage = 6: 4) or low-concentrate diet (LC, concentrate: forage = 4:6) for 20 weeks. Remarkable upregulation of lipopolysaccharide (LPS) level and depress of pH in rumen fluid were induced by HC compared with LC group. mRNA abundance of interleukin-6 (IL-6), interleukin-8 (IL-8), C-C motif chemokine ligand 5 (CCL5), caspase-3, caspase-8, and caspase-9 were elevated in RE of HC group compared with LC group. Greater protein abundance of phosphorylated NF-κB p65, IL-6, and tumor necrosis factor α (TNF-α) was observed in RE of cows fed HC than that fed LC. Abundance of protein related to proapoptotic response (cytochrome c, BAX and caspase-3) in HC group was greater than that in LC group, while the abundance of anti-apoptotic factor protein (Bcl-2) was lower in HC group than LC group. Therefore, the present study demonstrated that long-term high-concentrate diet feeding upregulated LPS level in rumen fluid and induced the proinflammatory response in the rumen epithelium and apoptosis of rumen epithelial cells.
Collapse
Affiliation(s)
- Hongyu Dai
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, P. R. China
| | - NaNa Ma
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, P. R. China
| | - Guangjun Chang
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, P. R. China
| | - Zain Ul Aabdin
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, P. R. China
| | - Xiangzhen Shen
- Ministry of Education Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, P. R. China
| |
Collapse
|
27
|
El-Senduny FF, Zidane MM, Youssef MM, Badria FA. An Approach to Treatment of Liver Cancer by Novel Glycyrrhizin Derivative. Anticancer Agents Med Chem 2020; 19:1863-1873. [PMID: 30973113 DOI: 10.2174/1871520619666190411114718] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 03/04/2019] [Accepted: 04/03/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Liver cancer is a life threating disease as it is the fifth most common cancer and the third most common cause of death worldwide with no safe, efficient, and economic drug available for treatment. METHODS This study intended to investigate glycyrrhizin and its derivatives for possible use as a cytotoxic agent and as a drug for liver cancer treatment. Thus, after treatment of liver cancer cell line HepG-2 with 50 μM of each compound, cell viability was determined. RESULTS The cytotoxicity assay showed glycyrrhizin derivatives ME-GA (18β-Glycyrrhetinic-30-methyl ester) and AKBA (3-acetyl-11- keto-β-Boswellic acid) to be the most potent drug against liver cancer cell line HepG-2 with IC50 values 25.50 ± 1.06 and 19.73 ± 0.89 μM, respectively. Both the compounds showed higher selectivity towards hepatocellular carcinoma rather than the normal lung fibroblast cell line WI-38. The presence of methyl ester at C-30 greatly increased the cytotoxicity of ME-GA which might be attributed to its higher activity and selectivity. Both ME-GA and AKBA contributed to inhibit cancer cell migration in the wound healing assay and impeded colony formation. The use of flow cytometry to carry out cell cycle analysis and the determination of possible mechanisms of action for apoptosis revealed that ME-GA arrested the cell cycle at G2/M that led to the inhibition of hepatocellular carcinoma and induced apoptosis via the extrinsic pathway and its ability to increase p53 transactivation. CONCLUSION This work highlights the cytotoxicity of glycyrrhizin and its derivatives for possible use as a chemotherapeutic agent against hepatocellular carcinoma cells HepG-2. The most cytotoxic compound was ME-GA (18β-Glycyrrhetinic-30-methyl ester) with no cytotoxic effect on the normal cell line. In summary, this new derivative may be used as an alternative or complementary medicine for liver cancer.
Collapse
Affiliation(s)
- Fardous F El-Senduny
- Department of Biochemistry, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Mahmoud M Zidane
- Department of Biochemistry, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Magdy M Youssef
- Department of Biochemistry, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Farid A Badria
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| |
Collapse
|
28
|
Shendge AK, Chaudhuri D, Basu T, Mandal N. A natural flavonoid, apigenin isolated from Clerodendrum viscosum leaves, induces G2/M phase cell cycle arrest and apoptosis in MCF-7 cells through the regulation of p53 and caspase-cascade pathway. Clin Transl Oncol 2020; 23:718-730. [PMID: 32715386 DOI: 10.1007/s12094-020-02461-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/15/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND With 9.6 million deaths in 2018, cancer remains the second leading cause of death worldwide. Breast cancer is the most deadly type of cancer among females, with 55.2% of crude incidence rate and 16.6% of crude mortality rate. PURPOSE The present study was aimed to investigate the anti-breast cancer potential of natural dietary flavonoid, apigenin isolated from Clerodendrum viscosum leaves. METHODS Apigenin was evaluated for in-depth anticancer activity in MCF-7 cells using cell viability assay, cell cycle analysis, Annexin-V-FLUOS staining, ROS induction, morphological analysis, and western blot analysis. RESULTS Apigenin showed selective cytotoxicity on MCF-7 cells with an IC50-56.72 ± 2.35 µM, while negligible cytotoxicity was observed on WI-38 cells. Further, the flow cytometer-based analysis showed that apigenin halted MCF-7 cells in the G2/M phase arrest followed by dose-dependent apoptosis. Moreover, the FACS and confocal microscopy results confirmed the elevation of intracellular ROS and nuclear fragmentation in apigenin-treated MCF-7 cells. Western blots showed up-regulation of cell cycle regulatory proteins, increased p53 expression, Bax/Bcl-2 ratio, activation of caspases, and cleavage of PARP. Finally, apigenin treatment in the presence of Pifithrin-µ showed decreased apoptotic population and it was further confirmed through western blotting study. The results revealed the vital role of p53 in apigenin-induced apoptosis in MCF-7 cells. CONCLUSIONS In the present findings, treatment of apigenin-induced intracellular ROS in MCF-7 cells followed by induction of G2/M phase cell cycle arrest and further apoptosis through the regulation of p53 and caspase-cascade signaling pathway.
Collapse
Affiliation(s)
- A K Shendge
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme - VIIM, Kolkata, West Bengal, 700054, India
| | - D Chaudhuri
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme - VIIM, Kolkata, West Bengal, 700054, India
| | - T Basu
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme - VIIM, Kolkata, West Bengal, 700054, India
| | - N Mandal
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme - VIIM, Kolkata, West Bengal, 700054, India.
| |
Collapse
|
29
|
He Y, Koch R, Budamagunta V, Zhang P, Zhang X, Khan S, Thummuri D, Ortiz YT, Zhang X, Lv D, Wiegand JS, Li W, Palmer AC, Zheng G, Weinstock DM, Zhou D. DT2216-a Bcl-xL-specific degrader is highly active against Bcl-xL-dependent T cell lymphomas. J Hematol Oncol 2020; 13:95. [PMID: 32677976 PMCID: PMC7364785 DOI: 10.1186/s13045-020-00928-9] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 06/29/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Patients with advanced T cell lymphomas (TCLs) have limited therapeutic options and poor outcomes in part because their TCLs evade apoptosis through upregulation of anti-apoptotic Bcl-2 proteins. Subsets of TCL cell lines, patient-derived xenografts (PDXs), and primary patient samples depend on Bcl-xL for survival. However, small molecule Bcl-xL inhibitors such as ABT263 have failed during clinical development due to on-target and dose-limiting thrombocytopenia. METHODS We have developed DT2216, a proteolysis targeting chimera (PROTAC) targeting Bcl-xL for degradation via Von Hippel-Lindau (VHL) E3 ligase, and shown that it has better anti-tumor activity but is less toxic to platelets compared to ABT263. Here, we examined the therapeutic potential of DT2216 for TCLs via testing its anti-TCL activity in vitro using MTS assay, immunoblotting, and flow cytometry and anti-TCL activity in vivo using TCL cell xenograft and PDX model in mice. RESULTS The results showed that DT2216 selectively killed various Bcl-xL-dependent TCL cells including MyLa cells in vitro. In vivo, DT2216 alone was highly effective against MyLa TCL xenografts in mice without causing significant thrombocytopenia or other toxicity. Furthermore, DT2216 combined with ABT199 (a selective Bcl-2 inhibitor) synergistically reduced disease burden and improved survival in a TCL PDX mouse model dependent on both Bcl-2 and Bcl-xL. CONCLUSIONS These findings support the clinical testing of DT2216 in patients with Bcl-xL-dependent TCLs, both as a single agent and in rational combinations.
Collapse
Affiliation(s)
- Yonghan He
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Raphael Koch
- Department of Hematology and Medical Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Vivekananda Budamagunta
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Peiyi Zhang
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Xuan Zhang
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Sajid Khan
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Dinesh Thummuri
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Yuma T Ortiz
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Xin Zhang
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Dongwen Lv
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Janet S Wiegand
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Wen Li
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Adam C Palmer
- Department of Pharmacology, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Guangrong Zheng
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - David M Weinstock
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, 450 Brookline Avenue, Dana 510B, Boston, MA, USA.
| | - Daohong Zhou
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA.
| |
Collapse
|
30
|
Dai YL, Kim EA, Luo HM, Jiang YF, Oh JY, Heo SJ, Jeon YJ. Characterization and anti-tumor activity of saponin-rich fractions of South Korean sea cucumbers ( Apostichopus japonicus). JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2020; 57:2283-2292. [PMID: 32431354 PMCID: PMC7230107 DOI: 10.1007/s13197-020-04266-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/12/2020] [Accepted: 01/17/2020] [Indexed: 12/21/2022]
Abstract
In this study, the saponin-rich fractions of five individual (two Red and three Black) sea cucumbers (Apostichopus japonicus) in South Korea were investigated for their antiproliferative effect against HL-60, B16F10, MCF-7, and Hep3B tumor cell lines. The red sea cucumber saponin-rich fraction (SSC) from Jeju Island (JRe) decreased the growth of HL-60 with an IC50 value of 23.55 ± 3.40 μg/mL, which represented the strongest anticancer activity among the extracts. Further, SSC downregulated B-cell lymphoma extra-large (Bcl-xL), while upregulating, to different degrees, Bcl-2-associated X protein (Bax), caspase-9, caspase-3, PARP cleavage, and apoptotic bodies in cancer cells. Evidence for SSC inducing apoptosis via the mitochondria-mediated pathway was found. The contents of SSCs were determined using ultra high-performance liquid chromatography coupled with a quadrupole orbitrap mass spectrometry to comparatively evaluate the regional influence. In West Sea, the total SSC content of A. japonicus was 15.5 mg/g, representing the highest content, while A. japonicus in the South Sea yielded the lowest content at 8 mg/g. The major saponin constituent in SSC was identified as Holotoxin A1, which may the anti-tumor compound in A. japonicus.
Collapse
Affiliation(s)
- Yu-Lin Dai
- 1Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117 China
- 2Department of Marine Life Science, Jeju National University, Jeju, 63243 Republic of Korea
| | - Eun-A Kim
- 3Jeju Research Institute, Korea Institute of Ocean Science & Technology (KIOST), Jeju, 63349 Republic of Korea
| | - Hao-Ming Luo
- 4School of Pharmacy, Changchun University of Chinese Medicine, Changchun, 130117 China
| | - Yun-Fei Jiang
- 2Department of Marine Life Science, Jeju National University, Jeju, 63243 Republic of Korea
| | - Jae-Young Oh
- 2Department of Marine Life Science, Jeju National University, Jeju, 63243 Republic of Korea
| | - Soo-Jin Heo
- 3Jeju Research Institute, Korea Institute of Ocean Science & Technology (KIOST), Jeju, 63349 Republic of Korea
| | - You-Jin Jeon
- 2Department of Marine Life Science, Jeju National University, Jeju, 63243 Republic of Korea
- 5Marine Science Institute, Jeju National University, Jeju, 63333 Republic of Korea
| |
Collapse
|
31
|
Shendge AK, Panja S, Basu T, Mandal N. A Tropical Lichen, Dirinaria consimilis Selectively Induces Apoptosis in MCF-7 Cells through the Regulation of p53 and Caspase-Cascade Pathway. Anticancer Agents Med Chem 2020; 20:1173-1187. [PMID: 32188391 DOI: 10.2174/1871520620666200318095410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Breast cancer is the most leading cause of death, with 49.9% of crude incidence rate and 12.9% of crude mortality rate. Natural resources have been extensively used throughout history for better and safer treatment against various diseases. OBJECTIVES The present study was aimed to investigate the antioxidant and anticancer potential of a tropical lichen Dirinaria consimilis (DCME) and its phytochemical analysis. METHODS The DCME was preliminarily evaluated for ROS, and RNS scavenging potential. Furthermore, DCME was evaluated for in vitro anticancer activity through cell proliferation assay, cell cycle analysis, annexin V/PI staining, morphological analysis, and western blotting study. Finally, the HPLC and LC-MS analyses were done to identify probable bioactive compounds. RESULTS The in vitro antioxidant studies showed promising ROS, and RNS scavenging potential of DCME. Moreover, the in vitro antiproliferative study bared the cytotoxic nature of DCME towards MCF-7 (IC50 - 98.58 ± 6.82μg/mL) and non-toxic towards WI-38 (IC50 - 685.85 ± 19.51μg/mL). Furthermore, the flow-cytometric analysis revealed the increase in sub G1 population as well as early apoptotic populations dose-dependently. The results from confocal microscopy showed the DNA fragmentation in MCF-7 upon DCME treatment. Finally, the western blotting study revealed the induction of tumor suppressor protein, p53, which results in increasing the Bax/Bcl-2 ratio and activation of caspase-cascade pathways. CONCLUSION The activation of caspase-3, -8, -9 and PARP degradation led us to conclude that DCME induces apoptosis in MCF-7 through both intrinsic and extrinsic mechanisms. The LC-MS analysis showed the presence of various bioactive compounds.
Collapse
Affiliation(s)
- Anil K Shendge
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme-VIIM, Kolkata-700054, West Bengal, India
| | - Sourav Panja
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme-VIIM, Kolkata-700054, West Bengal, India
| | - Tapasree Basu
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme-VIIM, Kolkata-700054, West Bengal, India
| | - Nripendranath Mandal
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme-VIIM, Kolkata-700054, West Bengal, India
| |
Collapse
|
32
|
Antunes F, Pereira GJS, Saito RF, Buri MV, Gagliardi M, Bincoletto C, Chammas R, Fimia GM, Piacentini M, Corazzari M, Smaili SS. Effective Synergy of Sorafenib and Nutrient Shortage in Inducing Melanoma Cell Death through Energy Stress. Cells 2020; 9:E640. [PMID: 32155825 PMCID: PMC7140454 DOI: 10.3390/cells9030640] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/28/2020] [Accepted: 03/02/2020] [Indexed: 12/21/2022] Open
Abstract
Skin melanoma is one of the most aggressive and difficult-to-treat human malignancies, characterized by poor survival rates, thus requiring urgent novel therapeutic approaches. Although metabolic reprogramming has represented so far, a cancer hallmark, accumulating data indicate a high plasticity of cancer cells in modulating cellular metabolism to adapt to a heterogeneous and continuously changing microenvironment, suggesting a novel therapeutic approach for dietary manipulation in cancer therapy. To this aim, we exposed melanoma cells to combined nutrient-restriction/sorafenib. Results indicate that cell death was efficiently induced, with apoptosis representing the prominent feature. In contrast, autophagy was blocked in the final stage by this treatment, similarly to chloroquine, which also enhanced melanoma cell sensitization to combined treatment. Energy stress was evidenced by associated treatment with mitochondrial dysfunction and glycolysis impairment, suggesting metabolic stress determining melanoma cell death. A reduction of tumor growth after cycles of intermittent fasting together with sorafenib treatment was also observed in vivo, reinforcing that the nutrient shortage can potentiate anti-melanoma therapy. Our findings showed that the restriction of nutrients by intermittent fasting potentiates the effects of sorafenib due to the modulation of cellular metabolism, suggesting that it is possible to harness the energy of cancer cells for the treatment of melanoma.
Collapse
Affiliation(s)
- Fernanda Antunes
- Department of Pharmacology, Federal University of São Paulo, Paulista School of Medicine, São Paulo 04021-001, Brazil; (F.A.); (G.J.S.P.); (C.B.); (S.S.S.)
| | - Gustavo J. S. Pereira
- Department of Pharmacology, Federal University of São Paulo, Paulista School of Medicine, São Paulo 04021-001, Brazil; (F.A.); (G.J.S.P.); (C.B.); (S.S.S.)
| | - Renata F. Saito
- Center for Translational Research in Oncology, Department of Radiology and Oncology, Faculty of Medicine of the University of São Paulo and Cancer Institute of the State of São Paulo, São Paulo 04021-001, Brazil; (R.F.S.); (R.C.)
| | - Marcus V. Buri
- Department of Molecular Biology, Federal University of São Paulo, Paulista School of Medicine, São Paulo 04021-001, Brazil;
| | - Mara Gagliardi
- Department of Health Sciences (DISS), University of Piemonte Orientale, 28100 Novara, Italy;
- Center for Translational Research on Autoimmune and Allergic Disease (CAAD), 28100 Novara, Italy
| | - Claudia Bincoletto
- Department of Pharmacology, Federal University of São Paulo, Paulista School of Medicine, São Paulo 04021-001, Brazil; (F.A.); (G.J.S.P.); (C.B.); (S.S.S.)
| | - Roger Chammas
- Center for Translational Research in Oncology, Department of Radiology and Oncology, Faculty of Medicine of the University of São Paulo and Cancer Institute of the State of São Paulo, São Paulo 04021-001, Brazil; (R.F.S.); (R.C.)
| | - Gian Maria Fimia
- Department of Epidemiology and Preclinical Research, National Institute for Infectious Diseases IRCCS ‘Lazzaro Spallanzani’, 00149 Rome, Italy; (G.M.F.); (M.P.)
- Department of Molecular Medicine, University of Rome La Sapienza, 00185 Rome, Italy
| | - Mauro Piacentini
- Department of Epidemiology and Preclinical Research, National Institute for Infectious Diseases IRCCS ‘Lazzaro Spallanzani’, 00149 Rome, Italy; (G.M.F.); (M.P.)
- Institute of Cytology of the Russian Academy of Sciences, 199034 Saint Petersburg, Russia
| | - Marco Corazzari
- Department of Health Sciences (DISS), University of Piemonte Orientale, 28100 Novara, Italy;
- Center for Translational Research on Autoimmune and Allergic Disease (CAAD), 28100 Novara, Italy
- Department of Health Sciences and Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, 28100 Novara, Italy
| | - Soraya Soubhi Smaili
- Department of Pharmacology, Federal University of São Paulo, Paulista School of Medicine, São Paulo 04021-001, Brazil; (F.A.); (G.J.S.P.); (C.B.); (S.S.S.)
| |
Collapse
|
33
|
Ruan W, Hu J, Zhou H, Li Y, Xu C, Luo Y, Chen T, Xu B, Yan F, Chen G. Intranasal wnt-3a alleviates neuronal apoptosis in early brain injury post subarachnoid hemorrhage via the regulation of wnt target PPAN mediated by the moonlighting role of aldolase C. Neurochem Int 2020; 134:104656. [DOI: 10.1016/j.neuint.2019.104656] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/22/2019] [Accepted: 12/29/2019] [Indexed: 01/01/2023]
|
34
|
Guo F, Xue J. MicroRNA‑628‑5p inhibits cell proliferation and induces apoptosis in colorectal cancer through downregulating CCND1 expression levels. Mol Med Rep 2020; 21:1481-1490. [PMID: 32016467 PMCID: PMC7003041 DOI: 10.3892/mmr.2020.10945] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 11/22/2019] [Indexed: 12/17/2022] Open
Abstract
MicroRNA (miR)-628-5p serves as an antitumor gene in a variety of cancers; however, the role of miR-628-5p in colorectal cancer remains largely unclear. The purpose of this study was to investigate the role and mechanism of miR-628-5p in colorectal cancer. Reverse transcription-quantitative PCR (RT-qPCR), colony formation assays and flow cytometric analysis were used to determine the expression levels of miR-628-5p in colorectal cancer tissues and cell lines, and the proliferative ability of colorectal cancer cells. TargetScan version 7.2 and dual-luciferase reporter assay were performed to predict and confirm miR-628-5p target genes. The expression levels of cyclin D1 (CCND1) and related genes were determined using RT-qPCR or/and western blotting analysis. miR-628-5p mimics and CCND1 plasmids were used to overexpress miR-628-5p and CCND1; it was demonstrated that the expression levels of miR-628-5p were significantly downregulated in colorectal cancer tissues and cell lines. miR-628-5p mimic-transfected cells inhibited the proliferation and induced apoptosis of HT-29 cells. CCND1, a downstream effector of miR-628-5p, promoted the proliferation and suppressed apoptosis of HT-29 cells, and the effects were reversed by miR-628-5p mimics. In conclusion, the present study suggested that colorectal cancer progression may be regulated through the miR-628-5p/CCND1 axis, and miR-628-5p could be used as a potential diagnostic and prognostic biomarker for colorectal cancer.
Collapse
Affiliation(s)
- Fei Guo
- Department of General Surgery, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei 075061, P.R. China
| | - Jun Xue
- Department of General Surgery, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei 075061, P.R. China
| |
Collapse
|
35
|
Yi X, Sarkar A, Kismali G, Aslan B, Ayres M, Iles LR, Keating MJ, Wierda WG, Long JP, Bertilaccio MTS, Gandhi V. AMG-176, an Mcl-1 Antagonist, Shows Preclinical Efficacy in Chronic Lymphocytic Leukemia. Clin Cancer Res 2020; 26:3856-3867. [PMID: 31937611 DOI: 10.1158/1078-0432.ccr-19-1397] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/28/2019] [Accepted: 01/10/2020] [Indexed: 12/25/2022]
Abstract
PURPOSE Survival of CLL cells due to the presence of Bcl-2 and Mcl-1 has been established. Direct inhibition of Bcl-2 by venetoclax and indirect targeting of Mcl-1 with transcription inhibitors have been successful approaches for CLL. AMG-176 is a selective and direct antagonist of Mcl-1, which has shown efficacy in several hematologic malignancies; however, its effect on CLL is elusive. We evaluated biological and molecular effects of AMG-176 in primary CLL cells. EXPERIMENTAL DESIGN Using samples from patients (n = 74) with CLL, we tested effects of AMG-176 on CLL and normal hematopoietic cell death and compared importance of CLL prognostic factors on this biological activity. We evaluated CLL cell apoptosis in the presence of stromal cells and identified cell death pathway including stabilization of Mcl-1 protein. Finally, we tested a couplet of AMG-176 and venetoclax in CLL lymphocytes. RESULTS AMG-176 incubations resulted in time- and dose-dependent CLL cell death. At 100 and 300 nmol/L, there was 30% and 45% cell death at 24 hours. These concentrations did not result in significant cell death in normal hematopoietic cells. Presence of stroma did not affect AMG-176-induced CLL cell death. IGHV unmutated status, high β2M and Mcl-1 protein levels resulted in slightly lower cell death. Mcl-1, but not Bcl-2 protein levels, in CLL cells increased with AMG-176. Low concentrations of venetoclax (1-30 nmol/L) were additive or synergistic with AMG-176. CONCLUSIONS AMG-176 is active in inducing CLL cell death while sparing normal blood cells. Combination with low-dose venetoclax was additive or synergistic.
Collapse
Affiliation(s)
- Xue Yi
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Hematology, Wuhan No. 1 Hospital, Wuhan, Hubei, China
| | - Aloke Sarkar
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Gorkem Kismali
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Biochemistry, Ankara University Faculty of Veterinary Medicine, Ankara, Turkey
| | - Burcu Aslan
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Mary Ayres
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - LaKesla R Iles
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Michael J Keating
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - William G Wierda
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - James P Long
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | | | - Varsha Gandhi
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas. .,Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| |
Collapse
|
36
|
Saga of Mcl-1: regulation from transcription to degradation. Cell Death Differ 2020; 27:405-419. [PMID: 31907390 DOI: 10.1038/s41418-019-0486-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/05/2019] [Accepted: 12/13/2019] [Indexed: 01/01/2023] Open
Abstract
The members of the Bcl-2 family are the central regulators of various cell death modalities. Some of these proteins contribute to apoptosis, while others counteract this type of programmed cell death, thus balancing cell demise and survival. A disruption of this balance leads to the development of various diseases, including cancer. Therefore, understanding the mechanisms that underlie the regulation of proteins of the Bcl-2 family is of great importance for biomedical research. Among the members of the Bcl-2 family, antiapoptotic protein Mcl-1 is characterized by a short half-life, which renders this protein highly sensitive to changes in its synthesis or degradation. Hence, the regulation of Mcl-1 is of particular scientific interest, and the study of Mcl-1 modulators could aid in the understanding of the mechanisms of disease development and the ways of their treatment. Here, we summarize the present knowledge regarding the regulation of Mcl-1, from transcription to degradation, focusing on aspects that have not yet been described in detail.
Collapse
|
37
|
Algarín EM, Hernández-García S, Garayoa M, Ocio EM. Filanesib for the treatment of multiple myeloma. Expert Opin Investig Drugs 2019; 29:5-14. [DOI: 10.1080/13543784.2020.1703179] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Susana Hernández-García
- Cancer Research Center (IBMCC-CSIC-USAL), University Hospital of Salamanca (IBSAL), Salamanca, Spain
| | - Mercedes Garayoa
- Cancer Research Center (IBMCC-CSIC-USAL), University Hospital of Salamanca (IBSAL), Salamanca, Spain
| | - Enrique M. Ocio
- University Hospital Marques de Valdecilla (IDIVAL), University of Cantabria, Santander, Spain
| |
Collapse
|
38
|
Aghaei M, KhanAhmad H, Aghaei S, Ali Nilforoushzadeh M, Mohaghegh MA, Hejazi SH. The role of Bax in the apoptosis of Leishmania-infected macrophages. Microb Pathog 2019; 139:103892. [PMID: 31778755 DOI: 10.1016/j.micpath.2019.103892] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 10/30/2019] [Accepted: 11/23/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Leishmania is a protozoan parasite that nests in macrophages and is responsible for the Leishmaniasis disease. In spite of different defense pathways, last strategy of macrophage for killing parasite is apoptosis process. By permeableizing the mitochondrial outer membrane (MOM). As breaching MOM releases apoptogenic factors like cytochrome-c which activate caspases that result in the destruction of the cell. In this review, we summarized the appropriate manuscripts regarding the bax includes, its different types and the effect of bax on the apoptosis of Leishmania and parasite-infected macrophages. METHODS Information about the role of BAX in the apoptosis of parasite-infected macrophage of recent articles were surveyed by searching computerized bibliographic database PubMed and Google Scholar entering the keywords BAX and leishmaniasis. RESULTS The common studies revealed Leishmania use different survival strategies for inhibiting macrophage apoptosis. As Leishmania by preventing homooligomerization or upregulating the anti-apoptotic molecule Bcl-2 can prohibits proteins of host-cell apoptosis such as Bax that is required for mitochondrial permeabilisation during apoptosis. CONCLUSION With regard to the supportive role of bax in apoptosis and the preventive role of Leishmania in its function, it seems that expression of bax gene in parasite by technologies like transgenic or down regulating of anti-apoptotic molecule Bcl-2 by miRNA could be prompted the apoptosis process of infected-macrophages and inhibited extensive spread of Leishmania and the resulting lesions.
Collapse
Affiliation(s)
- Maryam Aghaei
- Skin Diseases and Leishmaniasis Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hossein KhanAhmad
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Shahrzad Aghaei
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | | | - Mohammad-Ali Mohaghegh
- Department of Laboratory Sciences, School of Paramedical Sciences, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran; Health Sciences Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
| | - Seyed Hossein Hejazi
- Skin Diseases and Leishmaniasis Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Skin Disease and Leishmaniasis Research Center, Department of Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
| |
Collapse
|
39
|
Takino JI, Sato T, Nagamine K, Hori T. The inhibition of Bax activation-induced apoptosis by RasGRP2 via R-Ras-PI3K-Akt signaling pathway in the endothelial cells. Sci Rep 2019; 9:16717. [PMID: 31723205 PMCID: PMC6854084 DOI: 10.1038/s41598-019-53419-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 10/15/2019] [Indexed: 12/31/2022] Open
Abstract
Apoptosis of endothelial cells is a very important event in various diseases and angiogenesis. We recently reported that ras guanyl nucleotide releasing protein 2 (RasGRP2), which is a guanine nucleotide exchange factor, was expressed in the human umbilical vein endothelial cells (HUVECs) and that Rap1 activation by its overexpression inhibited apoptosis by suppressing tumor necrosis factor-α induced-reactive oxygen species (ROS) production. However, other signaling pathways and roles of RasGRP2 not mediated via Rap1 are not well understood. Therefore, we compared the Mock (M) and the RasGRP2-stable overexpression (R) immortalized HUVECs using BAM7 and anisomycin, which are apoptosis inducers. BAM7 and anisomycin induced apoptosis without causing ROS production, and such apoptosis was significantly increased in M cells, but not in R cells. RasGRP2 suppressed BAM7- and anisomycin-induced apoptosis, but not via the Rap1 pathway as observed using Rap1 knockdown. Furthermore, RasGRP2 activated not only Rap1 but also R-Ras, and suppressed apoptosis by activating R-Ras-phosphoinositide 3-kinase (PI3K)-Akt signaling pathway. The phosphorylation of Akt by RasGRP2 inhibited Bax translocation by promoting translocation of hexokinase-2 (HK-2) from cytoplasm to mitochondria. Taken together, it was suggested that RasGRP2 suppresses the Bax activation-induced apoptosis by promoting HK-2 translocation to mitochondria via R-Ras-PI3K-Akt signaling pathway.
Collapse
Affiliation(s)
- Jun-Ichi Takino
- Laboratory of Biochemistry, Hiroshima International University, Hiroshima, Japan.
| | - Takuma Sato
- Laboratory of Biochemistry, Hiroshima International University, Hiroshima, Japan
| | - Kentaro Nagamine
- Laboratory of Biochemistry, Hiroshima International University, Hiroshima, Japan
- Department of Clinical Nutrition, Hiroshima International University, Hiroshima, Japan
| | - Takamitsu Hori
- Laboratory of Biochemistry, Hiroshima International University, Hiroshima, Japan
| |
Collapse
|
40
|
Dai YL, Jiang YF, Lee HG, Jeon YJ, Kang MC. Characterization and screening of anti-tumor activity of fucoidan from acid-processed hijiki (Hizikia fusiforme). Int J Biol Macromol 2019; 139:170-180. [PMID: 31336117 DOI: 10.1016/j.ijbiomac.2019.07.119] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 06/14/2019] [Accepted: 07/19/2019] [Indexed: 01/12/2023]
Abstract
The aim of this study was to investigate the antiproliferative effects of fucoidan from three regional hijiki (Hizikia fusiforme) samples (Zhejiang-China, Jeju-Korea [JH], and Wando-Korea) in East Asia. Hijiki was processed using 1% citric acid to decrease heavy metal content. The JH sample was separated using diethylaminoethyl-cellulose-ion exchange chromatography to obtain four active fractions (JHCF1-JHCF4) and their monosaccharide composition was detected using high-performance liquid chromatography. The structure of the crude polysaccharides and four fucoidan fractions was analyzed using Fourier-transform infrared spectroscopy. JHCF4 showed the highest fucose and sulfate content and decreased Hep3B cell growth in 48 h with a half-maximal inhibitory concentration of 33.53 ± 2.50 μg/ml, which represented the strongest anticancer activity. Further, nuclear staining with Hoechst 33342 and acridine orange-ethidium bromide staining demonstrated that the anticancer activity of JHCF4 was mediated by apoptosis. Moreover, JHCF4 down-regulated B-cell lymphoma extra-large, while up-regulating Bcl-2-associated X protein, caspase-3, and apoptotic bodies to different degrees in Hep3B cells. JHCF4 induced apoptosis via the generation of reactive oxygen species along with the concurrent loss of mitochondrial membrane potential, indicating the potential role of the mitochondria-mediated pathway. Therefore, these results indicate that JHCF4 exhibited antiproliferative effects on the investigated cancer cell lines.
Collapse
Affiliation(s)
- Yu-Lin Dai
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea; Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Yun-Fei Jiang
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea
| | - Hyo Geun Lee
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju 63243, Republic of Korea; Marine Science Institute, Jeju National University, Jeju Self-Governing Province 63333, Republic of Korea.
| | - Min-Cheol Kang
- Research group of Food Processing, Research Division of Strategic Food Technology, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea.
| |
Collapse
|
41
|
Nkpaa KW, Awogbindin IO, Amadi BA, Abolaji AO, Adedara IA, Wegwu MO, Farombi EO. Ethanol Exacerbates Manganese-Induced Neurobehavioral Deficits, Striatal Oxidative Stress, and Apoptosis Via Regulation of p53, Caspase-3, and Bax/Bcl-2 Ratio-Dependent Pathway. Biol Trace Elem Res 2019; 191:135-148. [PMID: 30488170 DOI: 10.1007/s12011-018-1587-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 11/20/2018] [Indexed: 10/27/2022]
Abstract
This study investigated the effects of ethanol (EtOH) on manganese (Mn)-induced striatal toxicity in rat by evaluating the neurobehavioral changes, biochemical and molecular events in rats exposed to Mn alone at 30 mg/kg, or their combination with EtOH at 1.25- and 5-g/kg body weight for 35 consecutive days. Locomotive and exploratory profiles were assessed using a video tracking software (ANY-Maze software) during a 5-min trial in a novel environment. Subsequently, acetylcholinesterase (AChE) activity, oxidative stress markers, histological morphology, and expression of apoptotic proteins (p53 and Bax and caspase-3) and anti-apoptotic protein (Bcl-2) were assessed in the striatum. Results showed that Mn, EtOH, and their combination induced locomotor and motor deficits. Track plot analysis indicated that EtOH exacerbated the Mn-induced reduction in exploratory profiles of exposed rats. Similarly, exposure of rats to Mn, EtOH, or combination of Mn and EtOH resulted in decreased activities of anti-oxidant enzymes, diminished level of reduced glutathione, downregulated Bcl-2 expression, increased AChE activity, enhanced hydrogen peroxide and lipid peroxidation levels, and upregulated expressions of p53, Bax, and caspase-3. Moreover, potentiation of Mn-induced striatal toxicity by EtOH co-exposure was dose dependent. Taken together, it seems that EtOH exacerbates Mn-induced neurobehavioral deficits, oxidative stress, and apoptosis induction via the regulation of p53, caspase-3, and Bax/Bcl-2 ratio-dependent pathway in rat striatum.
Collapse
Affiliation(s)
- Kpobari W Nkpaa
- Environmental Toxicology Unit, Department of Biochemistry, Faculty of Science, University of Port Harcourt, P.M.B 5323, Choba, Rivers State, Nigeria.
| | - Ifeoluwa O Awogbindin
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Benjamin A Amadi
- Environmental Toxicology Unit, Department of Biochemistry, Faculty of Science, University of Port Harcourt, P.M.B 5323, Choba, Rivers State, Nigeria
| | - Amos O Abolaji
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Isaac A Adedara
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Matthew O Wegwu
- Environmental Toxicology Unit, Department of Biochemistry, Faculty of Science, University of Port Harcourt, P.M.B 5323, Choba, Rivers State, Nigeria.
| | - Ebenezer O Farombi
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| |
Collapse
|
42
|
Hao Y, Chen H, Xu W, Gao J, Yang Y, Zhang Y, Tao L. Roundup ® confers cytotoxicity through DNA damage and Mitochondria-Associated apoptosis induction. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 252:917-923. [PMID: 31226516 DOI: 10.1016/j.envpol.2019.05.128] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/29/2019] [Accepted: 05/25/2019] [Indexed: 06/09/2023]
Abstract
Glyphosate-based herbicides (GBH) are the most widely used pesticides in the world. The extensive use of them increases the potential human health risk, including the human inhalation toxicity risk. We studied the effect of the most famous GBH Roundup® (RDP) in the concentration range from 50 to 125 μg/mL on Mitochondria-Associated apoptosis and DNA damage in Human alveolar carcinoma cells (A549 cells). Alkaline comet assay, immunofluorescence assay and Flow Cytometric Analysis assay were employed to detect DNA damages and apoptosis of A549 cells. We found RDP caused concentration-dependent increases in DNA damages and proportion of apoptotic cells in A549 cells. RDP induced the DNA single-strand breaks and double-strand breaks; the collapse of mitochondrial membrane by increasing Bax/Bcl-2, resulting in the release of cytochrome c into cytosol and then activated caspase-9/-3, cleaved poly (ADP-ribose) polymerase (PARP) in human lung tissue cells. The results demonstrate that RDP can induce A549 cells cytotoxic effects in vitro at the concentration lower than the occupational exposures level of workers, which means RDP has a potential threat to human health.
Collapse
Affiliation(s)
- Youwu Hao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
| | - Hui Chen
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
| | - Wenping Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
| | - Jufang Gao
- College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China
| | - Yun Yang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
| | - Yang Zhang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China
| | - Liming Tao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China.
| |
Collapse
|
43
|
Sun Y, Ai JZ, Jin X, Liu LR, Lin TH, Xu H, Wei Q, Yang L. IL-8 protects prostate cancer cells from GSK-3β-induced oxidative stress by activating the mTOR signaling pathway. Prostate 2019; 79:1180-1190. [PMID: 31104320 DOI: 10.1002/pros.23836] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 04/19/2019] [Accepted: 05/03/2019] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Both oxidative stress and inflammation play important roles in prostate cancer cell apoptosis or proliferation; however, the mechanisms underlying these processes remain unclear. Thus, we selected interleukin-8 (IL-8) as the bridge between inflammation and cancer cell oxidative stress-induced death and aimed to confirm its connection with mTOR and Glycogen synthase kinase-3 beta (GSK-3β). METHODS We overexpressed GSK-3β and observed its effect on reactive oxygen species (ROS) and oxidative stress-induced cell death. IL-8 was then upregulated or downregulated to determine its impact on preventing cell damage due to GSK-3β-induced oxidative stress. In addition, we overexpressed or knocked down mTOR to confirm its role in this process. Real-time PCR, Western blotting, transcription, Cell Counting Kit 8 (CCK-8), and flow cytometry analyses were performed in addition to the use of other techniques. RESULTS IL-8 promotes prostate cancer cell proliferation and decreases apoptosis, whereas GSK-3β activates the caspase-3 signaling pathway by increasing ROS and thereby induces oxidative stress-mediated cell death. In addition, mTOR can also decrease activation of the caspase-3 signaling pathway by inhibiting GSK-3 and thus decreasing ROS production. Moreover, the inhibitory effect of IL-8 on GSK-3β occurs through the regulation of mTOR. CONCLUSION The results of this study highlight the importance of GSK-3β, which increases the production of ROS and thereby induces oxidative stress in tumor cells, whereas IL-8 and mTOR attenuate oxidative stress to protect prostate cancer cells through inhibition of GSK-3β.
Collapse
Affiliation(s)
- Yi Sun
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang, Chengdu, Sichuan, China
| | - Jian-Zhong Ai
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang, Chengdu, Sichuan, China
| | - Xi Jin
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang, Chengdu, Sichuan, China
| | - Liang-Ren Liu
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang, Chengdu, Sichuan, China
| | - Tian-Hai Lin
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang, Chengdu, Sichuan, China
| | - Hang Xu
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang, Chengdu, Sichuan, China
| | - Qiang Wei
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang, Chengdu, Sichuan, China
| | - Lu Yang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Guoxue Xiang, Chengdu, Sichuan, China
| |
Collapse
|
44
|
Hemidesmus indicus induces apoptosis via proteasome inhibition and generation of reactive oxygen species. Sci Rep 2019; 9:7199. [PMID: 31076590 PMCID: PMC6510901 DOI: 10.1038/s41598-019-43609-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 04/27/2019] [Indexed: 01/11/2023] Open
Abstract
Proteasome inhibition represents an important anticancer strategy. Here, we studied the mechanisms at the basis of the pro-apoptotic activity of the standardized decoction of Hemidesmus indicus, a plant evoking a complex anticancer activity, and explored its inhibition of proteasome activity in human leukemia cells. Additionally, we preliminary tested the cytotoxicity of some H. indicus’s phytochemicals on leukemia cells and their intestinal absorption on a human intestinal epithelium model consisting of a monolayer of differentiated Caco2 cells. We observed a potent antileukemic effect for H. indicus, imputable to the modulation of different critical targets at protein and mRNA levels and the reduction of the 26S proteasome expression. We found that some phytomarkers of H. indicus decoction passed through the enterocyte monolayer. Overall, our study supports the pharmacological potential of H. indicus, which can represent an interesting botanical drug in the oncological area.
Collapse
|
45
|
Ahmadi N, Mohamed S, Sulaiman Rahman H, Rosli R. Epicatechin and scopoletin-rich Morinda citrifolia leaf ameliorated leukemia via anti-inflammatory, anti-angiogenesis, and apoptosis pathways in vitro and in vivo. J Food Biochem 2019; 43:e12868. [PMID: 31353737 DOI: 10.1111/jfbc.12868] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 03/07/2019] [Accepted: 04/03/2019] [Indexed: 12/13/2022]
Abstract
The anti-leukemia mechanisms of Morinda citrifolia L. leaf extract were investigated on human Jurkat leukemia cells and in leukemia-induced BALB/c mice. The leukemia-induced mice were fed daily with the extract (100 or 200 mg/kg BW) and compared to ATRA (All-trans-retinoic-acid; 5 mg/kg BW). After 4 weeks' treatment, the extract (standardized to epicatechin and scopoletin), arrested Jurkat cell-cycle at the G0/G1 phase and activated the caspase-3 and caspase-8 (death-receptor extrinsic pathways). The extract dose-dependently reduced the blood and bone marrow myeloblasts levels of leukemia-induced mice; upregulated cancer suppressor genes CSF3, SOCS1, PTEN and TRP53; increased anti-inflammatory IL10 and IL4; downregulated anti-apoptotic or proliferation genes; decreased the pro-inflammatory NF-κβ; suppressed pro-angiogenesis VEGFA mRNA expressions, and restored the homeostatic immune or leukocytes levels. The extract directly ameliorated leukemia via cancer cells apoptosis, suppressed inflammation and angiogenesis; and mitigated bone marrow myeloblasts imbalance, without any observable toxicity on the animals. PRACTICAL APPLICATIONS: The scopoletin (coumarin) and epicatechin (flavonoid)-rich Morinda citrifolia (Noni) leaves may be used as functional food ingredient, vegetables, or dietary supplements to treat and suppress leukemia progression by directly killing the cancer cells and preventing new cancer cells development and bone marrow myeloblast imbalance in the bone marrow, without being toxic to normal cells. The M. citrifolia leaf extract suppressed inflammation, and potential metastasis by inhibiting new cancer-related blood vessel formation.
Collapse
Affiliation(s)
- Negin Ahmadi
- Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia.,Petroleum Industry Health Organization, Masjedsoleiman, Imam Khomeini Hospital, Tehran, Iran.,Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Suhaila Mohamed
- Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
| | - Heshu Sulaiman Rahman
- Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia.,College of Veterinary Medicine, University of Sulaimani, Sulaymaniyah, Republic of Iraq
| | - Rozita Rosli
- Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
| |
Collapse
|
46
|
Ou HC, Chou WC, Chu PM, Hsieh PL, Hung CH, Tsai KL. Fucoxanthin Protects against oxLDL-Induced Endothelial Damage via Activating the AMPK-Akt-CREB-PGC1α Pathway. Mol Nutr Food Res 2019; 63:e1801353. [PMID: 30892786 DOI: 10.1002/mnfr.201801353] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/13/2019] [Indexed: 02/06/2023]
Abstract
SCOPE Atherosclerotic cardiovascular disease is the most prevalent cause of mortality and morbidity. Fucoxanthin (FX) possesses anti-hypertensive and anti-obesity properties. However, the molecular mechanisms underlying the inhibitory effects of FX on oxidized low-density lipoprotein (oxLDL)-induced oxidative injuries in human endothelial cells are still largely unknown. This study aims to test the hypothesis that FX protects against oxLDL-induced oxidative stress by upregulating AMP-activated protein kinase (AMPK) and to explore the roles of cAMP response element binding protein (CREB) and peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α). METHODS AND RESULTS Human umbilical vein endothelial cells are treated with oxLDL in the presence or absence of FX. FX significantly increases AMPK phosphorylation. In addition, FX diminishes oxLDL-mediated nicotinamide adenine dinucleotide phosphate oxidase activation by inhibiting protein kinase C and subsequently inducing reactive oxygen species generation and impairing the activity of the endogenous antioxidant enzyme superoxidase dismutase. Furthermore, FX restores oxLDL-mediated dephosphorylation of phosphoinositide-3-kinase/Akt and decreases CREB and PGC-1α expression to nearly normal levels. Moreover, FX ameliorates the oxLDL-mediated suppression of mitochondrial function and apoptosis. CONCLUSION These findings provide new insights into the possible molecular mechanisms by which FX mitigates oxLDL-induced endothelial oxidative stress and mitochondrial dysfunction.
Collapse
Affiliation(s)
- Hsiu-Chung Ou
- Department of Physical Therapy, College of Medical and Health Science, Asia University, Taichung, Taiwan
| | - Wan-Ching Chou
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan, 701
| | - Pei-Ming Chu
- Department of Anatomy, School of Medicine, China Medical University, Taichung, Taiwan
| | - Pei-Ling Hsieh
- Department of Anatomy, School of Medicine, China Medical University, Taichung, Taiwan
| | - Ching-Hsia Hung
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan, 701.,Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kun-Ling Tsai
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan, 701
| |
Collapse
|
47
|
Nkpaa KW, Amadi BA, Wegwu MO, Farombi EO. Ethanol increases manganese—Induced spatial learning and memory deficits via oxidative/nitrosative stress induced p53 dependent/independent hippocampal apoptosis. Toxicology 2019; 418:51-61. [DOI: 10.1016/j.tox.2019.03.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 02/26/2019] [Accepted: 03/02/2019] [Indexed: 02/07/2023]
|
48
|
Aloia TP, Cogliati B, Monteiro JM, Goldberg AC, de Oliveira Salvalaggio PR. Recovery of the Cholangiocytes After Ischemia and Reperfusion Injury: Ultra-Structural, Hystological and Molecular Assessment in Rats. J Clin Exp Hepatol 2018; 8:380-389. [PMID: 30563999 PMCID: PMC6286446 DOI: 10.1016/j.jceh.2018.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 01/31/2018] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Ischemia-reperfusion (I/R) injury of the liver is a common area of interest to transplant and hepatic surgery. Nevertheless, most of the current knowledge of I/R of the liver derives from the hepatocyte and little is known of what happens to the cholangiocytes. Herein, we assess the sequence of early events involved in the I/R injury of the cholangiocytes. METHODS Sixty Wistar rats were randomized in a SHAM group and I/R group. Serum biochemistry, histopathology, immunohistochemistry, transmission electron microscopy (TEM) and laser capture microdissection (LCM) were used for group comparison. RESULTS There was peak of alkaline phosphatase 24 h after IR injury, and an increase of aspartate aminotransferase and alanine aminotransferase after 6 h of reperfusion, followed by a return to normal levels 24 h after injury. The I/R group presented the liver parenchyma with hepatocellular degeneration up to 6 h, followed by hepatocellular necrosis at 24 h. TEM showed cholangiocyte injury, including a progressive nuclear degeneration and cell membrane rupture, beginning at 6 h and peaking at 24 h after reperfusion. Cytokeratin-18 and caspase-3-positive areas were observed in the I/R group, peaking at 24-h reperfusion. Anti-apoptotic genes Bcl-2 and Bcl-xl activity were expressed from 6 through 24 h after reperfusion. BAX expression showed an increase for 24 h. CONCLUSIONS I/R injury to the cholangiocyte occurs from 6 through 24 h after reperfusion and a combination of TEM, immunohistochemistry and LCM allows a better isolation of the cholangiocyte and a proper investigation of the events related to the I/R injury. Apoptosis is certainly involved in the I/R process, particularly mediated by BAX.
Collapse
Key Words
- ALKP, alkaline phosphatase
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- BIL, bilirubin
- CK18, cytokeratin-18
- GGT, gamma-glutamyl transferase
- HPC, hepatic progenitor cells
- I/R, ischemia–reperfusion
- LCM, laser capture microdissection
- PCNA, proliferating cell nuclear antigen
- TEM, transmission electron microscopy
- VEGF, vascular endothelial growth factor
- apoptosis
- cholangiocytes
- ischemia–reperfusion
- rats
Collapse
Affiliation(s)
- Thiago P.A. Aloia
- Experimental Research Center, Hospital Israelita Albert Einstein, 05651-901 São Paulo, Brazil,Address for correspondence: Thiago P.A. Aloia, Instituto de Ensino e Pesquisa Albert Einstein, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627 – bl A, 2SS, 05651-901 São Paulo, Brazil. Tel.: +55 11 2151 1431.
| | - Bruno Cogliati
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), 05508-270 Sao Paulo, Brazil
| | - Janaina M. Monteiro
- Experimental Research Center, Hospital Israelita Albert Einstein, 05651-901 São Paulo, Brazil
| | - Anna C.K. Goldberg
- Experimental Research Center, Hospital Israelita Albert Einstein, 05651-901 São Paulo, Brazil
| | | |
Collapse
|
49
|
Jun DY, Jang WY, Kim KY, Woo MH, Kim YH. Cytoprotective effect of 2-carbomethoxy-2,3-epoxy-3-prenyl-1,4-naphthoquinone (CMEP-NQ) is mediated by the inhibition of BAK-dependent mitochondrial apoptosis pathway. PLoS One 2018; 13:e0204585. [PMID: 30273361 PMCID: PMC6166973 DOI: 10.1371/journal.pone.0204585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 09/11/2018] [Indexed: 01/16/2023] Open
Abstract
The inhibitory mechanism of 2-carbomethoxy-2,3-epoxy-3-prenyl-1,4-naphthoquinone (CMEP-NQ) against apoptosis induced by the microtubule-damaging agents (MDAs), nocodazole (NOC) and 2-methoxyestradiol (2-MeO-E2), or a DNA-damaging agent (DDA), camptothecin (CPT) were investigated in human Jurkat T cell clones (J/Neo and J/BCL-XL cells). Treatment of J/Neo cells with NOC, 2-MeO-E2, or CPT caused cytotoxicity and apoptotic DNA fragmentation but these events were significantly attenuated in the presence of CMEP-NQ. Although not only MDA (NOC or 2-MeO-E2)-induced mitotic arrest, CDK1 activation, and BCL-2, BCL-XL and BIM phosphorylation, but also DDA (CPT)-induced S-phase arrest and ATM-CHK1/CHK2-p53 pathway activation were not or were barely affected in the presence of CMEP-NQ, the levels of anti-apoptotic BAG3 and MCL-1, which were markedly downregulated after MDA- or DDA-treatment, were rather elevated by CMEP-NQ. Under the same conditions, MDA- or DDA-induced mitochondrial apoptotic events including BAK activation, mitochondrial membrane potential (Δψm) loss, caspase-9 activation, and PARP cleavage were significantly inhibited by CMEP-NQ. While MDA- or DDA-induced sub-G1 peak and Δψm loss were abrogated in J/BCL-XL cells, MDA-induced mitotic arrest and DDA-induced S-arrest were more apparent in J/BCL-XL cells than in J/Neo cells. Simultaneously, the induced cell cycle arrest in J/BCL-XL cells was not significantly disturbed by CMEP-NQ. MDA- or DDA-treatment caused intracellular reactive oxygen species (ROS) production; however, MDA- or DDA-induced ROS production was almost completely abrogated in J/BCL-XL cells. MDA- or DDA-induced ROS production in J/Neo cells was significantly suppressed by CMEP-NQ, but the suppressive effect was hardly observed in J/BCL-XL cells. Together, these results show that CMEP-NQ efficiently protects Jurkat T cells from apoptotic cell death via the elevation of BAG3 and MCL-1 levels, which results in the inhibition of intrinsic BAK-dependent mitochondrial apoptosis pathway, as does the overexpression of BCL-XL.
Collapse
Affiliation(s)
- Do Youn Jun
- Laboratory of Immunobiology, School of Life Science and Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu, Korea
| | - Won Young Jang
- Laboratory of Immunobiology, School of Life Science and Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu, Korea
| | - Ki Yun Kim
- Laboratory of Immunobiology, School of Life Science and Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu, Korea
| | - Mi Hee Woo
- College of Pharmacology, Daegu Catholic University, Gyeongsan, South Korea
| | - Young Ho Kim
- Laboratory of Immunobiology, School of Life Science and Biotechnology, College of Natural Sciences, Kyungpook National University, Daegu, Korea
| |
Collapse
|
50
|
Mitochondrial targeting domain of NOXA causes necrosis in apoptosis-resistant tumor cells. Amino Acids 2018; 50:1707-1717. [DOI: 10.1007/s00726-018-2644-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 08/27/2018] [Indexed: 11/27/2022]
|