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Neeli PK, Sahoo S, Karnewar S, Singuru G, Pulipaka S, Annamaneni S, Kotamraju S. DOT1L regulates MTDH-mediated angiogenesis in triple-negative breast cancer: intermediacy of NF-κB-HIF1α axis. FEBS J 2023; 290:502-520. [PMID: 36017623 DOI: 10.1111/febs.16605] [Citation(s) in RCA: 3] [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: 04/06/2022] [Revised: 06/18/2022] [Accepted: 08/25/2022] [Indexed: 02/05/2023]
Abstract
DOT1L, a specific H3K79 methyltransferase, has a tumour-promoting role in various cancers, including triple-negative breast cancer (TNBC). However, the molecular mechanism by which the deregulated DOT1L promotes cancer progression is unclear. Herein, we show that a significantly higher basal level of DOTL1 strongly correlates with MTDH, an oncogene, in clinical TNBC patient cohorts and mediates TNBC progression by enhancing MTDH-induced angiogenesis. In parallel, severe combined immunodeficiency mice-bearing MDA-MB-231 cells with MTDH-Wt or MTDHΔ7 (spliced isoform of MTDH) overexpression constructs showed enhanced blood vessel formations at the tumour site in comparison with control groups. Selective inhibition of DOT1L by EPZ004777, a specific DOT1L inhibitor, or siDOT1L, significantly impaired MTDH-induced proliferation, invasion and angiogenic markers expression in TNBC cells. ChIP assay revealed that Dot1L promotes MTDH-Wt/Δ7 transcription by increasing H3K79me3 levels on its promoter. Dot1L depletion reversed this effect. Mechanistically, DOT1L-induced MTDH caused enhanced nuclear factor kappa B (NF-κB) occupancy on the hypoxia-inducible factor1α (HIF1α) promoter and increased its transcription, leading to elevated levels of proangiogenic mediators in TNBC cells. Moreover, the condition media obtained from MDA-MB-231 cells stably expressing either MTDH-Wt or MTDHΔ7 treated with EPZ004777 or Bay-11-7082 (NF-κB inhibitor) or FM19G11 (HIF1α inhibitor) significantly inhibited MTDH-induced tube formation in human umbilical vein endothelial cells, rat aortic ring sprouting and vessel formations by chick chorioallantoic membrane assay mimicking physiological angiogenic vasculature. Collectively, our findings reveal a novel epigenetic regulation of MTDH by DOTL1, which drives angiogenesis, and that the therapeutic disruption of the DOT1L-MTDH-NF-κB-HIF1α axis may have usefulness in the management of TNBC.
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Affiliation(s)
- Praveen Kumar Neeli
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Shashikanta Sahoo
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Santosh Karnewar
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Gajalakshmi Singuru
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Sriravali Pulipaka
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Academy of Scientific and Innovative Research, Ghaziabad, India
| | | | - Srigiridhar Kotamraju
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Academy of Scientific and Innovative Research, Ghaziabad, India
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Karnewar S, Pulipaka S, Katta S, Panuganti D, Neeli PK, Thennati R, Jerald MK, Kotamraju S. Mitochondria-targeted esculetin mitigates atherosclerosis in the setting of aging via the modulation of SIRT1-mediated vascular cell senescence and mitochondrial function in Apoe mice. Atherosclerosis 2022; 356:28-40. [DOI: 10.1016/j.atherosclerosis.2022.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/11/2022] [Accepted: 07/15/2022] [Indexed: 11/25/2022]
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Shaikh A, Neeli PK, Singuru G, Panangipalli S, Banerjee R, Maddi SR, Thennati R, Bathula SR, Kotamraju S. A functional and self-assembling octyl-phosphonium-tagged esculetin as an effective siRNA delivery agent. Chem Commun (Camb) 2021; 57:12329-12332. [PMID: 34740232 DOI: 10.1039/d1cc03497a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we document a self-assembling octyl-TPP tagged esculetin (Mito-Esc) as functionally active and as a novel small molecule siRNA delivery vector. While Mito-Esc itself induces selective breast cancer cell death, the amphiphilic nature of Mito-Esc delivers therapeutic siRNAs intracellularly without the need for any excipient to exacerbate the anti-proliferative effects.
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Affiliation(s)
- Altab Shaikh
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201 002, India
| | - Praveen Kumar Neeli
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201 002, India.,Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India.
| | - Gajalakshmi Singuru
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201 002, India.,Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India.
| | - Sravya Panangipalli
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India.
| | - Rajkumar Banerjee
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201 002, India.,Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India.
| | - Sridhar Reddy Maddi
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201 002, India.,Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India.
| | | | - Surendar Reddy Bathula
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201 002, India
| | - Srigiridhar Kotamraju
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201 002, India.,Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad-500007, India.
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Sobhani N, Roviello G, D’Angelo A, Roudi R, Neeli PK, Generali D. p53 Antibodies as a Diagnostic Marker for Cancer: A Meta-Analysis. Molecules 2021; 26:molecules26206215. [PMID: 34684792 PMCID: PMC8541220 DOI: 10.3390/molecules26206215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/09/2021] [Accepted: 10/11/2021] [Indexed: 02/04/2023] Open
Abstract
Importance: The protein p53 is an unequivocal tumor suppressor that is altered in half of all cancers. The immune system produces systemic p53 autoantibodies (p53 Abs) in many cancer patients. Objective: This systemic review and meta-analysis focuses on the prognostic value of p53 Abs expressed in the serum of patients with solid tumors. Data Sources: All the clinical investigations were searched on PubMed from the first study dated 1993 until May 2021 (date of submission of the manuscript). Study Selection: Studies were included that met the following criteria: (1) participants with cancer; (2) outcome results expressed in relation to the presence of a p53 antibody; (3) a primary outcome (disease-free survival, overall survival or progression-free survival) expressed as hazard ratio (HR). The following exclusion criteria were used: (1) insufficient data available to evaluate outcomes; (2) animal studies; (3) studies with less than 10 participants. As a result, 12 studies were included in the analysis. Data Extraction and Synthesis: PRISMA guidelines were used for abstracting and assessing data quality and validity by three independent observers. The summary estimates were generated using a fixed-effect model (Mantel-Haenszel method) or a random-effect model (DerSimonian-Laird method), depending on the absence or presence of heterogeneity (I2). Main Outcome(s) and Measure(s): The primary study outcome was to determine the prognostic value of p53 Abs from a large population of patients with solid tumors, as determined before data collection. Results: In total, 12 clinical studies involving 2094 patients were included in the meta-analysis, and it was determined that p53 Abs expression in the serum significantly correlated with poorer survival outcomes of cancer patients (95% CI 1.48 [1.24, 1.77]; p < 0.00001). Conclusions and Relevance: This is the first meta-analysis proving the diagnostic utility of p53-Abs for cancer patients in predicting poorer outcomes. The serum-p53 value (s-p53-value) may be useful for future theranostics.
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Affiliation(s)
- Navid Sobhani
- Department of Medicine, Section of Epidemiology and Population Sciences, Baylor College of Medicine, Houston, TX 77030, USA;
- Correspondence: (N.S.); (D.G.)
| | | | - Alberto D’Angelo
- Department of Biology and Biochemistry, University of Bath, Bath BA2 7AY, UK;
| | - Raheleh Roudi
- Department of Medicine, University of Minnesota Medical School, Minneapolis, MN 55455, USA;
| | - Praveen Kumar Neeli
- Department of Medicine, Section of Epidemiology and Population Sciences, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Daniele Generali
- Department of Medical, Surgical and Health Sciences, University of Trieste, Cattinara Hospital, Strada Di Fiume 447, 34149 Trieste, Italy
- Correspondence: (N.S.); (D.G.)
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Sobhani N, Neeli PK, D’Angelo A, Pittacolo M, Sirico M, Galli IC, Roviello G, Nesi G. AR-V7 in Metastatic Prostate Cancer: A Strategy beyond Redemption. Int J Mol Sci 2021; 22:5515. [PMID: 34073713 PMCID: PMC8197232 DOI: 10.3390/ijms22115515] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/20/2021] [Accepted: 05/20/2021] [Indexed: 01/03/2023] Open
Abstract
Metastatic prostate cancer is the most common cancer in males and the fifth cause of cancer mortality worldwide. Despite the major progress in this field, leading to the approval of novel anti-androgens, the prognosis is still poor. A significant number of patients acquire an androgen receptor splice variant 7 (AR-V7), which is constitutively activated and lacks the ligand-binding domain (LBD) while maintaining the nuclear localization signal and DNA-binding domain (DBD). This conformational change, even in the absence of the ligand, allows its retention within the nucleus, where it acts as a transcription factor repressing crucial tumor suppressor genes. AR-V7 is an important oncogenic driver and plays a role as an early diagnostic and prognostic marker, as well as a therapeutic target for antagonists such as niclosamide and TAS3681. Anti-AR-V7 drugs have shown promise in recent clinical investigations on this subset of patients. This mini-review focuses on the relevance of AR-V7 in the clinical manifestations of castration-resistant prostate cancer (CRPC) and summarizes redemptive therapeutic strategies.
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Affiliation(s)
- Navid Sobhani
- Department of Medicine, Section of Epidemiology and Population Sciences, Baylor College of Medicine, Houston, TX 77030, USA; (N.S.); (P.K.N.); (M.P.)
| | - Praveen Kumar Neeli
- Department of Medicine, Section of Epidemiology and Population Sciences, Baylor College of Medicine, Houston, TX 77030, USA; (N.S.); (P.K.N.); (M.P.)
| | - Alberto D’Angelo
- Department of Biology and Biochemistry, University of Bath, Bath BA2 7AY, UK;
| | - Matteo Pittacolo
- Department of Medicine, Section of Epidemiology and Population Sciences, Baylor College of Medicine, Houston, TX 77030, USA; (N.S.); (P.K.N.); (M.P.)
| | - Marianna Sirico
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK;
- Azienda Socio-Sanitaria Territoriale Cremona, 26100 Cremona, Italy
| | - Ilaria Camilla Galli
- Histopathology and Molecular Diagnostics, Careggi Teaching Hospital, 50139 Florence, Italy;
| | | | - Gabriella Nesi
- Department of Health Sciences, University of Florence, 50139 Florence, Italy;
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Kallepu S, Neeli PK, Mallappa S, Nagendla NK, Reddy Mudiam MK, Mainkar PS, Kotamraju S, Chandrasekhar S. sp 3 -Rich Glycyrrhetinic Acid Analogues Using Late-Stage Functionalization as Potential Breast Tumor Regressing Agents. ChemMedChem 2020; 15:1826-1833. [PMID: 32893968 DOI: 10.1002/cmdc.202000400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/08/2020] [Indexed: 12/28/2022]
Abstract
Late-stage functionalization (LSF) aids drug discovery efforts by introducing functional groups onto C-H bonds on pre-existing skeletons. We adopted the LSF strategy to synthesize analogues of the abundantly available triterpenoid, glycyrrhetinic acid (GA), by introducing aryl groups in the A-ring, expanding the A-ring and selectively activating one methyl group of the gem-dimethyl groups. Intriguingly, two compounds were found to preferentially accumulate in the mitochondrial compartment of MDA-MB-231 breast cancer cells, to cause depolarization of mitochondrial membrane potential and to induce antiproliferative and anti-invasive effects through enhanced mitochondrial superoxide production with parallel depletion of GSH levels. Furthermore, intraperitoneal administration of these two compounds, in comparison with GA, greatly regressed breast tumor growth and metastasis in a SCID mouse model bearing labeled MDA-MB-231 cells.
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Affiliation(s)
- Shivakrishna Kallepu
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Praveen Kumar Neeli
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110020, India
| | - Sreevidya Mallappa
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110020, India
| | - Narendra Kumar Nagendla
- Department of Analytical & Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110020, India
| | - Mohana Krishna Reddy Mudiam
- Department of Analytical & Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110020, India
| | - Prathama S Mainkar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110020, India
| | - Srigiridhar Kotamraju
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110020, India
| | - Srivari Chandrasekhar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110020, India
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Gollavilli PN, Kanugula AK, Koyyada R, Karnewar S, Neeli PK, Kotamraju S. AMPK inhibits MTDH expression via GSK3β and SIRT1 activation: potential role in triple negative breast cancer cell proliferation. FEBS J 2015; 282:3971-85. [DOI: 10.1111/febs.13391] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 07/06/2015] [Accepted: 07/30/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Paradesi Naidu Gollavilli
- Centre for Chemical Biology; CSIR Indian Institute of Chemical Technology; Hyderabad India
- Academy of Scientific and Innovative Research; Training and Development Complex; Chennai India
| | | | - Rajeswari Koyyada
- Centre for Chemical Biology; CSIR Indian Institute of Chemical Technology; Hyderabad India
| | - Santosh Karnewar
- Centre for Chemical Biology; CSIR Indian Institute of Chemical Technology; Hyderabad India
- Academy of Scientific and Innovative Research; Training and Development Complex; Chennai India
| | - Praveen Kumar Neeli
- Centre for Chemical Biology; CSIR Indian Institute of Chemical Technology; Hyderabad India
| | - Srigiridhar Kotamraju
- Centre for Chemical Biology; CSIR Indian Institute of Chemical Technology; Hyderabad India
- Academy of Scientific and Innovative Research; Training and Development Complex; Chennai India
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