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Affiliation(s)
- V Marino
- School of Aging Studies, University of South Florida, Tampa, FL, USA
| | - A Badana
- School of Aging Studies, University of South Florida, Tampa, FL, USA
| | - W Haley
- School of Aging Studies, University of South Florida, Tampa, FL, USA
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Badana A, Marino V, Templeman M, Tofthagen C, McMillan S, Small B, Haley W. UNDERSTANDING THE ROLES OF PATIENT SYMPTOMS AND SUBJECTIVE APPRAISALS IN WELL-BEING AMONG BREAST CANCER PATIENTS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1048] [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: 11/14/2022] Open
Affiliation(s)
- A Badana
- School of Aging Studies, University of South Florida, Tampa, FL, USA
| | - V Marino
- School of Aging Studies, University of South Florida, Tampa, FL, USA
| | - M Templeman
- School of Aging Studies, University of South Florida, Tampa, FL, USA
| | - C Tofthagen
- College of Nursing, University of South Florida, Tampa, FL, USA
| | - S McMillan
- College of Nursing, University of South Florida, Tampa, FL, USA
| | - B Small
- School of Aging Studies, University of South Florida, Tampa, FL, USA
| | - W Haley
- School of Aging Studies, University of South Florida, Tampa, FL, USA
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Bevara GB, Naveen Kumar AD, Koteshwaramma KL, Badana A, Kumari S, Malla RR. C-glycosyl flavone from Urginea indica inhibits proliferation & angiogenesis & induces apoptosis via cyclin-dependent kinase 6 in human breast, hepatic & colon cancer cell lines. Indian J Med Res 2018; 147:158-168. [PMID: 29806604 PMCID: PMC5991124 DOI: 10.4103/ijmr.ijmr_51_16] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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] [Indexed: 12/27/2022] Open
Abstract
Background & objectives: Search for novel compounds beneficial to the treatment of cancer attracts a great deal of attention. We earlier demonstrated the isolation of 5,7-dihydroxy-2-[4’-hydroxy-3’-(methoxymethyl)phenyl]-6-C-β-glucopyranosyl flavone, a novel C-glycosyl flavone from Urginea indica bulb. The present study was undertaken to investigate the effect of this novel compound on human normal epithelial and breast, hepatic and colon cancer cell lines. Methods: The maximum non-toxic concentration (MNTC) and cytotoxicity of C-glycosyl flavone were assayed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT). Cell cycle was analyzed by flow cytometry. Docking studies were performed to predict possible targets. Levels of cyclin-dependent kinase 1 (CDK1) and CDK6, Bcl2 and BAX and cytochrome c were quantified by specific ELISA. Mitochondrial membrane potential was determined using JC-1 dye. Apoptosis was quantified by Annexin V ELISA method. Results: Flow cytometry analysis demonstrated G0/G1 arrest. In silico docking studies predicted CDK1 and CDK6 as a possible target of C-glycosyl flavone. In vitro study confirmed CDK6 as the main target in C-glycosyl flavone-treated cancer cell lines. C-glycosyl flavone treatment also induced membrane blebbing, chromatin fragmentation and nucleosome formation. C-glycosyl flavone treatment caused marked loss of mitochondrial membrane potential, decrease in Bcl2/BAX ratio and activation of caspase-3 and release of caspase-9 and cytochrome c. In addition, C-glycosyl flavone inhibited the tumour-induced angiogenesis and reduced the vascular endothelial growth factor levels. Similarly, CDK6 inhibitor significantly inhibited proliferation and angiogenesis and induced apoptosis in tested cell lines. Interpretation & conclusions: The results indicate that C-glycosyl flavone may exert induction of apoptosis, cell cycle arrest and inhibition of angiogenesis via CDK6. Thus, targeting CDK6 using C-glycosyl flavone may serve as a novel therapeutic approach for the treatment of breast, hepatic and colon cancers.
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Affiliation(s)
- Ganesh Babu Bevara
- Department of Biochemistry, Gandhi Institute of Technology & Management (Deemed to be University), Visakhapatnam, India
| | - A D Naveen Kumar
- Department of Biochemistry, Gandhi Institute of Technology & Management (Deemed to be University), Visakhapatnam, India
| | - K Laxmi Koteshwaramma
- Department of Biochemistry, Gandhi Institute of Technology & Management (Deemed to be University), Visakhapatnam, India
| | - Anil Badana
- Department of Biochemistry, Gandhi Institute of Technology & Management (Deemed to be University), Visakhapatnam, India
| | - Seema Kumari
- Department of Biochemistry, Gandhi Institute of Technology & Management (Deemed to be University), Visakhapatnam, India
| | - Rama Rao Malla
- Department of Biochemistry, Gandhi Institute of Technology & Management (Deemed to be University), Visakhapatnam, India
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Black K, Badana A. AGE-FRIENDLY COMMUNITY FEATURES: CAREGIVERS’ PERCEPTIONS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.517] [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: 11/14/2022] Open
Affiliation(s)
- K. Black
- University of South Florida, Sarasota-Manatee, Sarasota, Florida,
- The Patterson Foundation, Sarasota, Florida,
| | - A. Badana
- University of South Florida, Tampa, Florida
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Badana A, Chintala M, Varikuti G, Pudi N, Kumari S, Kappala VR, Malla RR. Lipid Raft Integrity Is Required for Survival of Triple Negative Breast Cancer Cells. J Breast Cancer 2016; 19:372-384. [PMID: 28053625 PMCID: PMC5204043 DOI: 10.4048/jbc.2016.19.4.372] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [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: 05/05/2016] [Accepted: 09/28/2016] [Indexed: 11/30/2022] Open
Abstract
Purpose Lipid rafts are cholesterol enriched microdomains that colocalize signaling pathways involved in cell proliferation, metastasis, and angiogenesis. We examined the effect of methyl-β-cyclodextrin (MβCD)-mediated cholesterol extraction on the proliferation, adhesion, invasion, and angiogenesis of triple negative breast cancer (TNBC) cells. Methods We measured cholesterol and estimated cell toxicity. Detergent resistant membrane (DRM) and non-DRM fractions were separated using the OptiPrep gradient method. Cell cycles stages were analyzed by flow cytometry, apoptosis was assessed using the TdT-mediated dUTP nick end-labeling assay, and metastasis was determined using a Matrigel invasion assay. Neo-vessel pattern and levels of angiogenic modulators were determined using an in vitro angiogenesis assay and an angiogenesis array, respectively. Results The present study found that the cholesterol-depleting agent MβCD, efficiently depleted membrane cholesterol and caused concentration dependent (0.1–0.5 mM) cytotoxicity compared to nystatin and filipin III in TNBC cell lines, MDA-MB 231 and MDA-MB 468. A reduced proportion of caveolin-1 found in DRM fractions indicated a cholesterol extraction-induced disruption of lipid raft integrity. MβCD inhibited 52% of MDA-MB 231 cell adhesion on fibronectin and 56% of MDA-MB 468 cell adhesion on vitronectin, while invasiveness of these cells was decreased by 48% and 52% respectively, following MβCD treatment (48 hours). MβCD also caused cell cycle arrest at the G2M phase and apoptosis in MDA-MB 231 cells (25% and 58% cells, respectively) and in MDA-MB 468 cells (30% and 38% cells, respectively). We found that MβCD treated cells caused a 52% and 58% depletion of neovessel formation in both MDA-MB 231 and MDA-MB 468 cell lines, respectively. This study also demonstrated that MβCD treatment caused a respective 2.6- and 2.5-fold depletion of tyrosine protein kinase receptor (TEK) receptor tyrosine kinase levels in both TNBC cell lines. Conclusion MβCD-induced cholesterol removal enhances alterations in lipid raft integrity, which reduces TNBC cell survival.
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Affiliation(s)
- Anil Badana
- Cancer Biology Lab, Department of Biochemistry, GIS, GITAM University, Visakhapatnam, India
| | - Madhuri Chintala
- Department of Obstetrics & Gynecology, Andhra Medical College, Visakhapatnam, India
| | - Gayathri Varikuti
- Cancer Biology Lab, Department of Biochemistry, GIS, GITAM University, Visakhapatnam, India
| | - Nagaseshu Pudi
- Cancer Biology Lab, Department of Biochemistry, GIS, GITAM University, Visakhapatnam, India
| | - Seema Kumari
- Cancer Biology Lab, Department of Biochemistry, GIS, GITAM University, Visakhapatnam, India
| | - Vijaya Rachel Kappala
- Department of Biochemistry, GITAM Institute of Science, GITAM University, Visakhapatnam, India
| | - Rama Rao Malla
- Cancer Biology Lab, Department of Biochemistry, GIS, GITAM University, Visakhapatnam, India.; Department of Biochemistry, GITAM Institute of Science, GITAM University, Visakhapatnam, India
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Kumari S, Devi G, Badana A, Dasari VR, Malla RR. CD151-A Striking Marker for Cancer Therapy. Biomark Cancer 2015; 7:7-11. [PMID: 25861224 PMCID: PMC4372031 DOI: 10.4137/bic.s21847] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 01/28/2015] [Accepted: 01/28/2015] [Indexed: 12/28/2022]
Abstract
Cluster of differentiation 151 (CD151) is a member of the mammalian tetraspanin family, which is involved in diverse functions such as maintaining normal cellular integrity, cell-to-cell communication, wound healing, platelet aggregation, trafficking, cell motility and angiogenesis. CD151 also supports de novo carcinogenesis in human skin squamous cell carcinoma (SCC) and tumor metastasis. CD151 interacts with α3β1 and α6β4 integrins through palmitoylation where cysteine plays an important role in the association of CD151 with integrins and non-integrin proteins. Invasion and metastasis of cancer cells were diminished by decreasing CD151 association with integrins. CD151 functions at various stages of cancer, including metastatic cascade and primary tumor growth, thus reinforcing the importance of CD151 as a target in oncology. The present review highlights the role of CD151 in tumor metastasis and its importance in cancer therapy.
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Affiliation(s)
- Seema Kumari
- Cancer Biology Lab, Department of Biochemistry, Institute of Science, GITAM University, Visakhapatnam, Andhra Pradesh, India
| | - Gayatri Devi
- Cancer Biology Lab, Department of Biochemistry, Institute of Science, GITAM University, Visakhapatnam, Andhra Pradesh, India
| | - Anil Badana
- Cancer Biology Lab, Department of Biochemistry, Institute of Science, GITAM University, Visakhapatnam, Andhra Pradesh, India
| | - Venkata Ramesh Dasari
- Department of Cancer Biology and Pharmacology, College of Medicine, University of Illinois, Peoria, IL, USA
| | - Rama Rao Malla
- Cancer Biology Lab, Department of Biochemistry, Institute of Science, GITAM University, Visakhapatnam, Andhra Pradesh, India
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