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Velatooru LR, Hu CH, Bijani P, Wang X, Bojaxhi P, Chen H, Duvic M, Ni X. New JAK3-INSL3 Fusion Transcript-An Oncogenic Event in Cutaneous T-Cell Lymphoma. Cells 2023; 12:2381. [PMID: 37830594 PMCID: PMC10572011 DOI: 10.3390/cells12192381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/14/2023] Open
Abstract
Constitutively activated tyrosine kinase JAK3 is implicated in the pathogenesis of cutaneous T-cell lymphomas (CTCL). The mechanisms of constitutive JAK3 activation are unknown although a JAK3 mutation was reported in a small portion of CTCL patients. In this study, we assessed the oncogenic roles of a newly identified JAK3-INSL3 fusion transcript in CTCL. Total RNA from malignant T-cells in 33 patients with Sézary syndrome (SS), a leukemic form of CTCL, was examined for the new JAK3-INSL3 fusion transcript by RT-PCR followed by Sanger sequencing. The expression levels were assessed by qPCR and correlated with patient survivals. Knockdown and/or knockout assays were conducted in two CTCL cell lines (MJ cells and HH cells) by RNA interference and/or CRISPR/Cas9 gene editing. SS patients expressed heterogeneous levels of a new JAK3-INSL3 fusion transcript. Patients with high-level expression of JAK3-INSL3 showed poorer 5-year survival (n = 19, 42.1%) than patients with low-level expression (n = 14, 78.6%). CTCL cells transduced with specific shRNAs or sgRNAs had decreased new JAK3-INSL3 fusion transcript expression, reduced cell proliferation, and decreased colony formation. In NSG xenograft mice, smaller tumor sizes were observed in MJ cells transduced with specific shRNAs than cells transduced with controls. Our results suggest that the newly identified JAK3-INSL3 fusion transcript confers an oncogenic event in CTCL.
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Affiliation(s)
| | | | | | | | | | | | | | - Xiao Ni
- Department of Dermatology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (L.R.V.); (C.H.H.); (P.B.); (X.W.); (P.B.); (H.C.); (M.D.)
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Wang Y, Abe JI, Chau KM, Wang Y, Vu HT, Reddy Velatooru L, Gulraiz F, Imanishi M, Samanthapudi VSK, Nguyen MTH, Ko KA, Lee LL, Thomas TN, Olmsted-Davis EA, Kotla S, Fujiwara K, Cooke JP, Zhao D, Evans SE, Le NT. MAGI1 inhibits interferon signaling to promote influenza A infection. Front Cardiovasc Med 2022; 9:791143. [PMID: 36082118 PMCID: PMC9445416 DOI: 10.3389/fcvm.2022.791143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 07/21/2022] [Indexed: 11/21/2022] Open
Abstract
We have shown that membrane-associated guanylate kinase with inverted domain structure-1 (MAGI1), a scaffold protein with six PSD95/DiscLarge/ZO-1 (PDZ) domains, is involved in the regulation of endothelial cell (EC) activation and atherogenesis in mice. In addition to causing acute respiratory disease, influenza A virus (IAV) infection plays an important role in atherogenesis and triggers acute coronary syndromes and fatal myocardial infarction. Therefore, the aim of this study is to investigate the function and regulation of MAGI1 in IAV-induced EC activation. Whereas, EC infection by IAV increases MAGI1 expression, MAGI1 depletion suppresses IAV infection, suggesting that the induction of MAGI1 may promote IAV infection. Treatment of ECs with oxidized low-density lipoprotein (OxLDL) increases MAGI1 expression and IAV infection, suggesting that MAGI1 is part of the mechanistic link between serum lipid levels and patient prognosis following IAV infection. Our microarray studies suggest that MAGI1-depleted ECs increase protein expression and signaling networks involve in interferon (IFN) production. Specifically, infection of MAGI1-null ECs with IAV upregulates expression of signal transducer and activator of transcription 1 (STAT1), interferon b1 (IFNb1), myxovirus resistance protein 1 (MX1) and 2'-5'-oligoadenylate synthetase 2 (OAS2), and activate STAT5. By contrast, MAGI1 overexpression inhibits Ifnb1 mRNA and MX1 expression, again supporting the pro-viral response mediated by MAGI1. MAGI1 depletion induces the expression of MX1 and virus suppression. The data suggests that IAV suppression by MAGI1 depletion may, in part, be due to MX1 induction. Lastly, interferon regulatory factor 3 (IRF3) translocates to the nucleus in the absence of IRF3 phosphorylation, and IRF3 SUMOylation is abolished in MAGI1-depleted ECs. The data suggests that MAGI1 inhibits IRF3 activation by maintaining IRF3 SUMOylation. In summary, IAV infection occurs in ECs in a MAGI1 expression-dependent manner by inhibiting anti-viral responses including STATs and IRF3 activation and subsequent MX1 induction, and MAGI1 plays a role in EC activation, and in upregulating a pro-viral response. Therefore, the inhibition of MAGI1 is a potential therapeutic target for IAV-induced cardiovascular disease.
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Affiliation(s)
- Yin Wang
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Jun-ichi Abe
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States,*Correspondence: Jun-ichi Abe
| | - Khanh M. Chau
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, United States
| | - Yongxing Wang
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Hang Thi Vu
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Loka Reddy Velatooru
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, United States
| | - Fahad Gulraiz
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Masaki Imanishi
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | | | - Minh T. H. Nguyen
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, United States
| | - Kyung Ae Ko
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Ling-Ling Lee
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Tamlyn N. Thomas
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Elizabeth A. Olmsted-Davis
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, United States
| | - Sivareddy Kotla
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Keigi Fujiwara
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - John P. Cooke
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, United States
| | - Di Zhao
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Scott E. Evans
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States,Scott E. Evans
| | - Nhat-Tu Le
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, United States,Nhat-Tu Le
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Velatooru LR, Abe RJ, Imanishi M, Gi YJ, Ko KA, Heo KS, Fujiwara K, Le NT, Kotla S. Disturbed flow-induced FAK K152 SUMOylation initiates the formation of pro-inflammation positive feedback loop by inducing reactive oxygen species production in endothelial cells. Free Radic Biol Med 2021; 177:404-418. [PMID: 34619327 PMCID: PMC8664087 DOI: 10.1016/j.freeradbiomed.2021.09.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 09/16/2021] [Accepted: 09/18/2021] [Indexed: 10/20/2022]
Abstract
Focal adhesion kinase (FAK) activation plays a crucial role in vascular diseases. In endothelial cells, FAK activation is involved in the activation of pro-inflammatory signaling and the progression of atherosclerosis. Disturbed flow (D-flow) induces endothelial activation and senescence, but the exact role of FAK in D-flow-induced endothelial activation and senescence remains unclear. The objective of this study is to investigate the role of FAK SUMOylation in D-flow-induced endothelial activation and senescence. The results showed that D-flow induced reactive oxygen species (ROS) production via NADPH oxidase activation and activated a redox-sensitive kinase p90RSK, leading to FAK activation by upregulating FAK K152 SUMOylation and the subsequent Vav2 phosphorylation, which in turn formed a positive feedback loop by upregulating ROS production. This feedback loop played a crucial role in regulating endothelial activation and senescence. D-flow-induced endothelial activation and senescence were significantly inhibited by mutating a FAK SUMOylation site lysine152 to arginine. Collectively, we concluded that FAK K152 SUMOylation plays a key role in D-flow-induced endothelial activation and senescence by forming a positive feedback loop through ROS production.
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Affiliation(s)
- Loka Reddy Velatooru
- Center for Cardiovascular Regeneration, Department of Cardiovascular Sciences, Houston Methodist Research Institute, Houston, 77030, Texas, USA
| | - Rei J Abe
- Center for Cardiovascular Regeneration, Department of Cardiovascular Sciences, Houston Methodist Research Institute, Houston, 77030, Texas, USA
| | - Masaki Imanishi
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, 77030, Texas, USA
| | - Young Jin Gi
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, 77030, Texas, USA
| | - Kyung Ae Ko
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, 77030, Texas, USA
| | - Kyung-Sun Heo
- Institute of Drug Research and Development, Chungnam National University, Daejeon, Republic of Korea
| | - Keigi Fujiwara
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, 77030, Texas, USA
| | - Nhat-Tu Le
- Center for Cardiovascular Regeneration, Department of Cardiovascular Sciences, Houston Methodist Research Institute, Houston, 77030, Texas, USA.
| | - Sivareddy Kotla
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, 77030, Texas, USA.
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Banerjee P, Kotla S, Reddy Velatooru L, Abe RJ, Davis EA, Cooke JP, Schadler K, Deswal A, Herrmann J, Lin SH, Abe JI, Le NT. Senescence-Associated Secretory Phenotype as a Hinge Between Cardiovascular Diseases and Cancer. Front Cardiovasc Med 2021; 8:763930. [PMID: 34746270 PMCID: PMC8563837 DOI: 10.3389/fcvm.2021.763930] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/16/2021] [Indexed: 12/13/2022] Open
Abstract
Overlapping risks for cancer and cardiovascular diseases (CVD), the two leading causes of mortality worldwide, suggest a shared biology between these diseases. The role of senescence in the development of cancer and CVD has been established. However, its role as the intersection between these diseases remains unclear. Senescence was originally characterized by an irreversible cell cycle arrest after a high number of divisions, namely replicative senescence (RS). However, it is becoming clear that senescence can also be instigated by cellular stress, so-called stress-induced premature senescence (SIPS). Telomere shortening is a hallmark of RS. The contribution of telomere DNA damage and subsequent DNA damage response/repair to SIPS has also been suggested. Although cellular senescence can mediate cell cycle arrest, senescent cells can also remain metabolically active and secrete cytokines, chemokines, growth factors, and reactive oxygen species (ROS), so-called senescence-associated secretory phenotype (SASP). The involvement of SASP in both cancer and CVD has been established. In patients with cancer or CVD, SASP is induced by various stressors including cancer treatments, pro-inflammatory cytokines, and ROS. Therefore, SASP can be the intersection between cancer and CVD. Importantly, the conventional concept of senescence as the mediator of cell cycle arrest has been challenged, as it was recently reported that chemotherapy-induced senescence can reprogram senescent cancer cells to acquire “stemness” (SAS: senescence-associated stemness). SAS allows senescent cancer cells to escape cell cycle arrest with strongly enhanced clonogenic growth capacity. SAS supports senescent cells to promote both cancer and CVD, particularly in highly stressful conditions such as cancer treatments, myocardial infarction, and heart failure. As therapeutic advances have increased overlapping risk factors for cancer and CVD, to further understand their interaction may provide better prevention, earlier detection, and safer treatment. Thus, it is critical to study the mechanisms by which these senescence pathways (SAS/SASP) are induced and regulated in both cancer and CVD.
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Affiliation(s)
- Priyanka Banerjee
- Center for Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX, United States
| | - Sivareddy Kotla
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Loka Reddy Velatooru
- Center for Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX, United States
| | - Rei J Abe
- Center for Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX, United States
| | - Elizabeth A Davis
- Center for Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX, United States
| | - John P Cooke
- Center for Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX, United States
| | - Keri Schadler
- Department of Pediatrics Research, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Anita Deswal
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Joerg Herrmann
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Steven H Lin
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Jun-Ichi Abe
- Department of Cardiology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Nhat-Tu Le
- Center for Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX, United States
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Khumukcham SS, Samanthapudi VSK, Penugurti V, Kumari A, Kesavan PS, Velatooru LR, Kotla SR, Mazumder A, Manavathi B. Hematopoietic PBX-interacting protein is a substrate and an inhibitor of the APC/C-Cdc20 complex and regulates mitosis by stabilizing cyclin B1. J Biol Chem 2019; 294:10236-10252. [PMID: 31101654 DOI: 10.1074/jbc.ra118.006733] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 04/27/2019] [Indexed: 02/04/2023] Open
Abstract
Proper cell division relies on the coordinated regulation between a structural component, the mitotic spindle, and a regulatory component, anaphase-promoting complex/cyclosome (APC/C). Hematopoietic PBX-interacting protein (HPIP) is a microtubule-associated protein that plays a pivotal role in cell proliferation, cell migration, and tumor metastasis. Here, using HEK293T and HeLa cells, along with immunoprecipitation and immunoblotting, live-cell imaging, and protein-stability assays, we report that HPIP expression oscillates throughout the cell cycle and that its depletion delays cell division. We noted that by utilizing its D box and IR domain, HPIP plays a dual role both as a substrate and inhibitor, respectively, of the APC/C complex. We observed that HPIP enhances the G2/M transition of the cell cycle by transiently stabilizing cyclin B1 by preventing APC/C-Cdc20-mediated degradation, thereby ensuring timely mitotic entry. We also uncovered that HPIP associates with the mitotic spindle and that its depletion leads to the formation of multiple mitotic spindles and chromosomal abnormalities, results in defects in cytokinesis, and delays mitotic exit. Our findings uncover HPIP as both a substrate and an inhibitor of APC/C-Cdc20 that maintains the temporal stability of cyclin B1 during the G2/M transition and thereby controls mitosis and cell division.
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Affiliation(s)
| | | | - Vasudevarao Penugurti
- From the Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India and
| | - Anita Kumari
- From the Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India and
| | - P S Kesavan
- the Centre for Interdisciplinary Sciences, Tata Institute of Fundamental Research Hyderabad, Hyderabad 500107, Telangana, India
| | - Loka Reddy Velatooru
- From the Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India and
| | - Siva Reddy Kotla
- From the Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India and
| | - Aprotim Mazumder
- the Centre for Interdisciplinary Sciences, Tata Institute of Fundamental Research Hyderabad, Hyderabad 500107, Telangana, India
| | - Bramanandam Manavathi
- From the Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India and
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6
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Velatooru LR, Vakamullu S, Penugurti V, S PR. Alpinoid c analog inhibits angiogenesis and induces apoptosis in COLO205 cell line. Chem Biol Interact 2019; 308:1-10. [PMID: 31071337 DOI: 10.1016/j.cbi.2019.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 04/26/2019] [Accepted: 05/05/2019] [Indexed: 01/05/2023]
Abstract
Diarylheptanoids display an array of biological and pharmacological properties. We previously reported the synthesis of a diarylheptanoid Alpinoid c and a series of its derivatives, evaluated their cytotoxicity against various human cancer cells. We found some of these derivatives were significantly more potent than Alpinoid c in preventing the proliferation of various cancer cell lines. Among these, (S, E)-1-(3, 4 dimethoxyphenyl)-6-hydroxy-7-phenylhept-4-en-3-one (DPHP) showed most potent cytotoxicity against COLO205 cells, however, the mechanism by which DPHP prevents the growth of these colon cancer cells remains unknown. In the current study, we investigated the molecular mechanism of DPHP on colon cancer cells. DPHP inhibited the proliferation of COLO205 (IC50 7.01 ± 0.62 μM) and A549 (IC50 20.03 ± 3.11 μM) cells more specifically than normal human colon epithelial cell line NCM460 (IC50 55.6 ± 4.02 μM). In COLO205 cells, DPHP induced cell shrinkage, membrane blebbing, chromatin condensation, phosphatidylserine externalization, and an accumulation of cells at sub-G1 phase. Further analysis these cells treated with DPHP revealed a decrease in mitochondrial membrane potential, an increase in Bax/Bcl2 ratio, the release of cytochrome c, activation of caspases -9, -3/7, and cleavage of the poly-ADP-ribose polymerase. DPHP treatment resulted in inhibition of hypoxia induced VEGF downstream signaling pathway in COLO205 cells is concurrent with inhibition of angiogenesis in CAM. Based on these data we suggest that DPHP significantly induced apoptosis possibly via intrinsic mitochondrial apoptosis pathway and inhibited angiogenesis. Our study suggests DPHP could be a therapeutic agent in treating colon cancer.
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Affiliation(s)
- Loka Reddy Velatooru
- Toxicology Unit, Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500607, Telangana, India; Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, Telangana, India.
| | - Sridhar Vakamullu
- Toxicology Unit, Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500607, Telangana, India
| | - Vasudevarao Penugurti
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, Telangana, India
| | - Purushotham Reddy S
- Division of Natural Product, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500607, Telangana, India
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Kumar PR, Yennam S, Raghavulu K, Velatooru LR, Kotla SR, Penugurti V, Hota PK, Behera M, Shree AJ. Correction: Synthesis of Novel Diaziridinyl Quinone Isoxazole Hybrids and Evaluation of Their Anti-Cancer Activity as Potential Tubulin-Targeting Agents. Drug Res (Stuttg) 2019; 69:e2-e2. [PMID: 30722080 DOI: 10.1055/a-0852-0469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- P Ravi Kumar
- Department of Medicinal Chemistry, GVK Biosciences Pvt. Ltd., Telangana, India
- Centre for Chemical Sciences & Technology, Institute of Science and Technology, JNT University, Telangana, India
| | | | - K Raghavulu
- Department of Medicinal Chemistry, GVK Biosciences Pvt. Ltd., Telangana, India
| | - Loka Reddy Velatooru
- Biochemistry Department, School of life Sciences, University of Hyderabad, Telangana, India
| | - Siva Reddy Kotla
- Biochemistry Department, School of life Sciences, University of Hyderabad, Telangana, India
| | - Vasudevarao Penugurti
- Biochemistry Department, School of life Sciences, University of Hyderabad, Telangana, India
| | - Prasanta K Hota
- Department of Chemistry, School of Sciences, HNBG University, Uttarakhand, India
| | - Manoranjan Behera
- Department of Medicinal Chemistry, GVK Biosciences Pvt. Ltd., Telangana, India
| | - A Jaya Shree
- Centre for Chemical Sciences & Technology, Institute of Science and Technology, JNT University, Telangana, India
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Kumar PR, Yennam S, Raghavulu K, Velatooru LR, Kotla SR, Penugurti V, Hota PK, Behera M, Shree AJ. Synthesis of Novel Diaziridinyl Quinone Isoxazole Hybrids and Evaluation of Their Anti-Cancer Activity as Potential Tubulin-Targeting Agents. Drug Res (Stuttg) 2019; 69:406-414. [PMID: 30654398 DOI: 10.1055/a-0810-7033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Two series of diaziridinyl quinone isoxazole derivatives were prepared and evaluated for their cytotoxic activity against MCF7, HeLa, BT549, A549 and HEK293 cell lines and interaction with tubulin. Compounds (6A-M: ) showed promising activity against all the 5 human cancer cell lines. Compounds 6A: , 6E: and 6 M: were potent [IC50 ranging between 2.21 µg to 2.87 µg] on ER-positive MCF7 cell line similar to the commercially available drug molecule Doxorubicin. The results from docking models are in consistent with the experimental values which demonstrated the favourable binding modes of compounds 6A-M: to the interface of α- and β-tubulin dimer.
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Affiliation(s)
- P Ravi Kumar
- Department of Medicinal Chemistry, GVK Biosciences Pvt. Ltd., Telangana, India.,Centre for Chemical Sciences & Technology, Institute of Science and Technology, JNT University, Telangana, India
| | | | - K Raghavulu
- Department of Medicinal Chemistry, GVK Biosciences Pvt. Ltd., Telangana, India
| | - Loka Reddy Velatooru
- Biochemistry Department, School of life Sciences, University of Hyderabad, Telangana, India
| | - Siva Reddy Kotla
- Biochemistry Department, School of life Sciences, University of Hyderabad, Telangana, India
| | - Vasudevarao Penugurti
- Biochemistry Department, School of life Sciences, University of Hyderabad, Telangana, India
| | - Prasanta K Hota
- Department of Chemistry, School of Sciences, HNBG University, Uttarakhand, India
| | - Manoranjan Behera
- Department of Medicinal Chemistry, GVK Biosciences Pvt. Ltd., Telangana, India
| | - A Jaya Shree
- Centre for Chemical Sciences & Technology, Institute of Science and Technology, JNT University, Telangana, India
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Vakamullu S, Arepalli SK, Velatooru LR, J VR, P KK, B N. In vitro apoptotic mechanism of a novel synthetic Quinazolinyl derivative: Induces caspase-dependent intrinsic pathway on THP-1, leukemia cell line. Chem Biol Interact 2017; 280:117-127. [PMID: 29225136 DOI: 10.1016/j.cbi.2017.12.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 11/04/2017] [Accepted: 12/05/2017] [Indexed: 12/11/2022]
Abstract
Several quinazoline derivatives have been found to possess a broad spectrum of biological activities. Previously our research group has synthesized and studied the anti-proliferative effects of N-Decyl-N-(2-Methyl-4-Quinazolinyl) Amine (DMQA). The current study evaluated the cytotoxic and apoptotic properties of DMQA in THP-1 cells. The cytotoxic potential of DMQA was assessed using MTT assay on a panel of cancer cell lines which include HeLa, Mia PaCa-2, A 375, B16-F10, A 549,A 431, U937, THP-1, HL-60 and peripheral blood mononuclear cells (PBMC's). Preliminary data revealed that the highest cytotoxic activity was against THP-1 leukemia cell line (IC50=0.66 μg/ml). The apoptotic properties of DMQA on THP-1 cells were characterized by change in nuclear morphology, DNA fragmentation, reduction of pro-caspases-3, 9, Bax/Bcl-2 levels, cleavage of poly (ADP-ribose) polymerase and cytosolic release of cytochrome c. Further investigation revealed a sub-G1 peak, phosphatidyl serine exposure and loss of mitochondrial membrane potential (MMP) in THP-1 cells. The role of caspases was crucial and was demonstrated by the inhibitors Z-VAD-FMK and Z-DEVD-FMK. Moreover DMQA was markedly less effective in inhibiting the growth of normal cells (PBMC's, IC50 =62.17 μg/ml). Based on the results we suggest that DMQA induced apoptosis via intrinsic pathway and could be a promising anticancer agent.
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Affiliation(s)
- Sridhar Vakamullu
- Toxicology Unit, Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 607, India; MNR Foundation for Research and Innovation, MNR Medical College, Sangareddy, Telangana, 502294, India
| | - S K Arepalli
- Toxicology Unit, Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 607, India
| | - L R Velatooru
- Toxicology Unit, Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 607, India
| | - Venkateswara Rao J
- Toxicology Unit, Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 607, India.
| | - Kavin Kennedy P
- Flow-cytometry Facility, CSIR-Centre for Cellular and Molecular Biology, Hyderabad, 500 607, India
| | - Narsaiah B
- Fluoro Organic Division, CSIR- Indian Institute of Chemical Technology, Hyderabad, 500 607, India
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Poudapally S, Battu S, Velatooru LR, Bethu MS, Janapala VR, Sharma S, Sen S, Pottabathini N, Iska VBR, Katangoor V. Synthesis and biological evaluation of novel quinazoline-sulfonamides as anti-cancer agents. Bioorg Med Chem Lett 2017; 27:1923-1928. [DOI: 10.1016/j.bmcl.2017.03.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 03/03/2017] [Accepted: 03/16/2017] [Indexed: 11/29/2022]
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Velatooru LR, Baggu CB, Janapala VR. Spatane diterpinoid from the brown algae, Stoechospermum marginatum induces apoptosis via ROS induced mitochondrial mediated caspase dependent pathway in murine B16F10 melanoma cells. Mol Carcinog 2016; 55:2222-2235. [PMID: 26785383 DOI: 10.1002/mc.22463] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 12/15/2015] [Accepted: 01/06/2016] [Indexed: 12/16/2023]
Abstract
Spatane diterpinoids isolated from the brown marine algae Stoechospermum marginatum were known to have cytotoxic effects in human cancerous cell lines and murine melanoma cells; the underling apoptotic mechanism of diterpinoids still remains unclear so far. Thus, in the present study, the apoptotic mechanism of a spatane diterpinoid, 5(R), 19-diacetoxy-15,18(R and S), dihydro spata-13, 16(E)-diene (DDSD) was investigated mainly in B16F10 melanoma cells because they were most susceptible to DDSD than THP1, U937, COLO205, and HL60 cells. The treatment of B6F10 cells with DDSD resulted in morphological alterations, nuclear condensation, and DNA fragmentation, which leads to cell growth inhibition in a concentration-dependent manner. Data indicate that DDSD induced the generation of ROS, consequentially caused alteration in Bax/Bcl-2 ratio that disrupted the inner mitochondrial transmembrane potential (ΔΨm) resulting in cytochrome c redistribution to the cytoplasm and activation of caspase-mediated apoptotic pathway. Flow cytometric analysis clearly indicated that the DDSD inducing phosphatidylserine externalization and mediated "S-phase" arrest in cell cycle. In addition, results also found that DDSD induced apoptosis through deregulating PI3K/AKT signaling pathway. The anti-tumor activity of DDSD was evaluated in C57BL/6 mice bearing B16F10 melanoma. It effectively inhibited tumor growth (volume and weight) in a dose dependent manner, yet without apparent toxic effects. Morphology and apoptotic status of tumor tissues in the treated mice were assessed by microscopy and TUNEL assay, respectively. Our study shows a therapeutic potential of DDSD for the treatment of malignant melanoma and a new source of anticancer drugs. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Loka Reddy Velatooru
- Division of Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
| | - Chinna Babu Baggu
- Division of Natural Product, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
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