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Mendonza JJ, Reddy ST, Dutta H, Makani VKK, Uppuluri VM, Jain N, Bhadra MP. Retinoic acid and evernyl-based menadione-triazole hybrid cooperate to induce differentiation of neuroblastoma cells. Naunyn Schmiedebergs Arch Pharmacol 2023; 396:2651-2665. [PMID: 37097334 DOI: 10.1007/s00210-023-02489-3] [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] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/05/2023] [Indexed: 04/26/2023]
Abstract
Neuroblastoma arises when immature neural precursor cells do not mature into specialized cells. Although retinoic acid (RA), a pro-differentiation agent, improves the survival of low-grade neuroblastoma, resistance to retinoic acid is found in high-grade neuroblastoma patients. Histone deacetylases (HDAC) inhibitors induce differentiation and arrest the growth of cancer cells; however, HDAC inhibitors are FDA-approved mostly for liquid tumors. Therefore, combining histone deacetylase (HDAC) inhibitors and retinoic acid can be explored as a strategy to trigger the differentiation of neuroblastoma cells and to overcome resistance to retinoic acid. Based on this rationale, in this study, we linked evernyl group and menadione-triazole motifs to synthesize evernyl-based menadione-triazole hybrids and asked if the hybrids cooperate with retinoic acid to trigger the differentiation of neuroblastoma cells. To answer this question, we treated neuroblastoma cells using evernyl-based menadione-triazole hybrids (6a-6i) or RA or both and examined the differentiation of neuroblastoma cells. Among the hybrids, we found that compound 6b inhibits class-I HDAC activity, induces differentiation, and RA co-treatments increase 6b-induced differentiation of neuroblastoma cells. In addition, 6b reduces cell proliferation, induces expression of differentiation-specific microRNAs leading to N-Myc downregulation, and RA co-treatments enhance the 6b-induced effects. We observed that 6b and RA trigger a switch from glycolysis to oxidative phosphorylation, maintain mitochondrial polarization, and increase oxygen consumption rate. We conclude that in evernyl-based menadione-triazole hybrid, 6b cooperates with RA to induce differentiation of neuroblastoma cells. Based on our results, we suggest that combining RA and 6b can be pursued as therapy for neuroblastoma. Schematic representation of RA and 6b in inducing differentiation of neuroblastoma cells.
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Affiliation(s)
- Jolly Janette Mendonza
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, Telangana State, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Srilakshmi Tirupathamma Reddy
- Center for Natural Products and Traditional Knowledge, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, Telangana State, India
| | - Hashnu Dutta
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, Telangana State, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Venkata Krishna Kanth Makani
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, Telangana State, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Venkata Mallavadhani Uppuluri
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
- Center for Natural Products and Traditional Knowledge, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, Telangana State, India.
| | - Nishant Jain
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, Telangana State, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
| | - Manika Pal Bhadra
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, Telangana State, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Pamarthy D, Behera SK, Swain S, Yadav S, Suresh S, Jain N, Bhadra MP. Diaryl ether derivative inhibits GPX4 expression levels to induce ferroptosis in thyroid cancer cells. Drug Dev Res 2023; 84:861-887. [PMID: 37070554 DOI: 10.1002/ddr.22059] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 03/20/2023] [Accepted: 04/01/2023] [Indexed: 04/19/2023]
Abstract
Papillary thyroid carcinoma contributes to about 80% of the total thyroid cancer cases. BRAFV600E is a frequently occurring mutation in PTCs. Although several BRAF inhibitors are available, many thyroid cancer patients acquire resistance to BRAF inhibitors. Therefore, new targets and drugs need to be identified as therapies. Ferroptosis is a recently discovered type of cell death, and inhibiting glutathione peroxidase 4 (GPX4) using small molecules was found to trigger ferroptosis. But it is unknown whether inhibiting GPX4 renders thyroid cancer cells susceptible to ferroptosis. To identify novel GPX4 inhibitors, we focused on our previously reported cohort of diaryl ether and dibenzoxepine molecules. In this study, we asked whether diaryl ether and dibenzoxepine derivatives trigger ferroptosis in thyroid cancer cells. To answer this question, we screened diaryl ether and dibenzoxepine derivatives in cell-based assays and performed mechanism of action studies. We found that a diaryl ether derivative, 16 decreased thyroid cell proliferation and triggered ferroptosis by inhibiting GPX4 expression levels. Molecular modeling and dynamics simulations showed that 16 binds to the active site of GPX4. Upon deciphering the mode of 16-induced ferroptosis, we found that 16 treatments decrease mitochondrial polarization and reduce mitochondrial respiration similar to a ferroptosis inducer, RSL3. We conclude that the diaryl ether derivative, 16 inhibits GPX4 expression levels to induce ferroptosis in thyroid cancer cells. Based on our observations, we suggest that 16 can be lead-optimized and developed as a ferroptosis-inducing agent to treat thyroid cancers.
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Affiliation(s)
- Deepika Pamarthy
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Santosh Kumar Behera
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, (NIPER), Ahmedabad, Gujarat, India
| | - Sonam Swain
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Sanjay Yadav
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, Telangana, India
| | - Surisetti Suresh
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, Telangana, India
| | - Nishant Jain
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Manika Pal Bhadra
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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Chakrabarti M, Raut GK, Jain N, Bhadra MP. Prohibitin1 maintains mitochondrial quality in isoproterenol-induced cardiac hypertrophy in H9C2 cells. Biol Cell 2023; 115:e2200094. [PMID: 36453777 DOI: 10.1111/boc.202200094] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/21/2022] [Accepted: 11/24/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND INFORMATION Various types of stress initially induce a state of cardiac hypertrophy (CH) in the heart. But, persistent escalation of cardiac stress leads to progression from an adaptive physiological to a maladaptive pathological state. So, elucidating molecular mechanisms that can attenuate CH is imperative in developing cardiac therapies. Previously, we showed that Prohibitin1 (PHB1) has a protective role in CH-induced oxidative stress. Nevertheless, it is unclear how PHB1, a mitochondrial protein, has a protective role in CH. Therefore, we hypothesized that PHB1 maintains mitochondrial quality in CH. To test this hypothesis, we used Isoproterenol (ISO) to induce CH in H9C2 cells overexpressing PHB1 and elucidated mitochondrial quality control pathways. RESULTS We found that overexpressing PHB1 attenuates ISO-induced CH and restores mitochondrial morphology in H9C2 cells. In addition, PHB1 blocks the pro-hypertrophic IGF1R/AKT pathway and restores the mitochondrial membrane polarization in ISO-treated cells. We observed that overexpressing PHB1 promotes mitochondrial biogenesis, improves mitochondrial respiratory capacity, and triggers mitophagy. CONCLUSION We conclude that PHB1 maintains mitochondrial quality in ISO-induced CH in H9C2 cells. SIGNIFICANCE Based on our results, we suggest that small molecules that induce PHB1 in cardiac cells may prove beneficial in developing cardiac therapies.
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Affiliation(s)
- Moumita Chakrabarti
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ganesh Kumar Raut
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Nishant Jain
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Manika Pal Bhadra
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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Chakrabarti M, Jain N, Bhadra MP. Metformin induces a shift from glycolysis to fatty acid oxidation in cardiac hypertrophy via PHB1. Biochim Biophys Acta Gen Subj 2023; 1867:130268. [PMID: 36347344 DOI: 10.1016/j.bbagen.2022.130268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/28/2022] [Accepted: 11/01/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Moumita Chakrabarti
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad 201002, Uttar Pradesh, India
| | - Nishant Jain
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad 201002, Uttar Pradesh, India.
| | - Manika Pal Bhadra
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad 201002, Uttar Pradesh, India.
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Raut GK, Sukumar G, Chakrabarti M, Mendonza JJ, Pabbaraja S, Jagan Mohan Reddy B, Sistla R, Balaji Andugulapati S, Bhadra MP. Anticancer effect and apoptosis induction by azaflavanone derivative in human prostate cancer cells. Apoptosis 2022; 27:825-839. [PMID: 35829938 DOI: 10.1007/s10495-022-01745-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Accepted: 06/09/2022] [Indexed: 11/26/2022]
Abstract
Polyphenols are naturally occurring organic compounds with varying structures represented by four major groups: flavonoids, phenolic acids, lignans and stilbenes. Several studies suggested that these secondary metabolites have health benefits due to its anti-tumorigenic effect. Therefore, substantial effort has been put forward to isolate and characterize these natural compounds and synthesize analogues that may serve as potential anti-cancer therapeutics. This present study is aimed at designing and synthesis of azaflavanone derivative and in understanding its mechanism of action in vitro and in vivo. Molecular docking studies predicted that the compound can potentially bind strongly to the Cyclin E1-Cdk2 complex which is a key mediator of the cell cycle progression indicating a biological interference in aggressive prostate cancer. Further downstream studies to understand its cytotoxicity and mechanism of action showed this azaflavanone derivative markedly inhibits viability of prostate cancer cells (DU145) showing an IC50 value of 0.4 μM compared to other cancer cells. The pharmacological ROS insult using the azaflavanone derivative increases the oxidative damage leading to high expression of apoptotic markers with increasing concentration. On compound treatment, the cells lose the metabolic flexibility accompanied by mitochondrial dysfunction leading to cell cycle arrest and apoptosis. Further, no compound mediated toxicity was observed in xenograft mouse model of prostate cancer at a concentration as high as 5 mg/kg. The tumor burden was reduced to 60% rendering the azaflavanone derivative a potential candidate in cancer therapeutics. Collectively, the compound triggers cell cycle arrest and ROS mediated oxidative stress sensitizing the cancerous cells towards apoptosis.
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Affiliation(s)
- Ganesh Kumar Raut
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad, Telangana, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Genji Sukumar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, India
- Department of Chemistry, Adikavi Nannaya University, Rajamahendravaram, AP, 533296, India
| | - Moumita Chakrabarti
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad, Telangana, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Jolly Janette Mendonza
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad, Telangana, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Srihari Pabbaraja
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, India
| | - B Jagan Mohan Reddy
- Department of Chemistry, Adikavi Nannaya University, Rajamahendravaram, AP, 533296, India.
| | - Ramakrishna Sistla
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad, Telangana, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sai Balaji Andugulapati
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad, Telangana, 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Manika Pal Bhadra
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad, Telangana, 500007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Rao GK, Makani VKK, Mendonza JJ, Edathara PM, Patel N, Ramakrishna M, Cilamkoti P, Chiring Phukon J, Jose J, Bhadra U, Bhadra MP. Downregulation of BORIS/CTCFL leads to ROS-dependent cellular senescence and drug sensitivity in MYCN-amplified neuroblastoma. FEBS J 2021; 289:2915-2934. [PMID: 34854238 DOI: 10.1111/febs.16309] [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: 04/19/2021] [Revised: 11/08/2021] [Accepted: 11/30/2021] [Indexed: 12/28/2022]
Abstract
Brother of Regulator of Imprinted Sites (BORIS) or CCCTC-binding factor like (CTCFL) is a nucleotide-binding protein, aberrantly expressed in various malignancies. Expression of BORIS has been found to be associated with the expression of oncogenes which regulate the reactive oxygen species (ROS) biogenesis, DNA double-strand break repair, regulation of stemness, and induction of cellular senescence. In the present study, we have analyzed the effects of knockdown of BORIS, a potential oncogene, on the induction of senescence and tumor suppression. Loss of BORIS downregulated the expression of critical oncogenes such as BMI1, Akt, MYCN, and STAT3, whereas overexpression increased their respective expression levels in MYCN-amplified neuroblastoma cells. BORIS knockdown exhibited high levels of ROS biogenesis, indicating an upregulated mitochondrial superoxide production and thereby induction of senescence. Our study also showed that the loss of BORIS facilitated cellular senescence through the disruption of telomere integrity via altering the expression of various proteins required for telomere capping (POT1, TRF2, and TIN1). In addition to affecting ROS production and DNA damage, BORIS knockdown sensitized the cells toward chemotherapeutic drugs and induced apoptosis. Tumor induction studies on in vivo xenograft mouse models showed that cells with loss of BORIS/CTCFL failed to induce tumors. From our study, we conclude that silencing BORIS/CTCFL influences tumor growth and proliferation by regulating key oncogenes. The results also indicated that the BORIS knockdown can cause cellular senescence and upon a combinatorial treatment with chemotherapeutic drugs can induce enhanced drug sensitivity in MYCN-amplified neuroblastoma cells.
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Affiliation(s)
- Garikapati Koteswara Rao
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Academy of Scientific and Innovative Research (AcSIR), (CSIR-HRDC) Campus, CSIR- Human Resource Development Centre, Ghaziabad, Uttar Pradesh, India
| | - Venkata Krishna Kanth Makani
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Academy of Scientific and Innovative Research (AcSIR), (CSIR-HRDC) Campus, CSIR- Human Resource Development Centre, Ghaziabad, Uttar Pradesh, India
| | - Jolly Janette Mendonza
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Academy of Scientific and Innovative Research (AcSIR), (CSIR-HRDC) Campus, CSIR- Human Resource Development Centre, Ghaziabad, Uttar Pradesh, India
| | | | - Nibedita Patel
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Maresha Ramakrishna
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Priyanka Cilamkoti
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | | | - Jedy Jose
- Animal House Group, CSIR-Centre for Cellular and Molecular Biology, Hyderabad, India
| | - Utpal Bhadra
- Functional Genomics and Gene Silencing Group, CSIR-Centre for Cellular and Molecular Biology, Hyderabad, India
| | - Manika Pal Bhadra
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
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Pant C, Chakrabarti M, Mendonza JJ, Ganganna B, Pabbaraja S, Pal Bhadra M. Aza-Flavanone Diminishes Parkinsonism in the Drosophila melanogaster Parkin Mutant. ACS Chem Neurosci 2021; 12:4380-4392. [PMID: 34763419 DOI: 10.1021/acschemneuro.1c00285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Parkinson's disease is a chronic and progressive neurodegenerative disease, induced by slow and progressive death of the dopaminergic (DA) neurons from the midbrain region called substantia nigra (SNc) leading to difficulty in locomotion. At present, very few potential therapeutic drugs are available for treatment, necessitating an urgent need for development. In the current study, the parkin transgenic Drosophila melanogaster model that induces selective loss in dopaminergic neurons and impairment of locomotory functions has been used to see the effect of the aza-flavanone molecule. D. melanogaster serves as an amazing in vivo model making valuable contribution in the development of promising treatment strategies. Our in-silico study showed spontaneous binding of this molecule to the D2 receptor making it a potential dopamine agonist. PARKIN protein is well conserved, and it has been reported that Drosophila PARKIN is 42% identical to human PARKIN. Interestingly, this molecule enhances the motor coordination and survivability rate of the transgenic flies along with an increase in expression of the master regulator of Dopamine synthesis, that is, tyrosine hydroxylase (TH), in the substantia nigra region of the fly brain. Moreover, it plays a significant effect on mitochondrial health and biogenesis via modulation of a conserved mitochondrial protein PHB2. Therefore, this molecule could lead to the development of an effective therapeutic approach for the treatment of PD.
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Affiliation(s)
- Chitrakshi Pant
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Moumita Chakrabarti
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jolly Janette Mendonza
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Bogonda Ganganna
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
| | - Srihari Pabbaraja
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
| | - Manika Pal Bhadra
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
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Makani VKK, Mendonza JJ, Edathara PM, Yerramsetty S, Pal Bhadra M. BORIS/CTCFL expression activates the TGFβ signaling cascade and induces Drp1 mediated mitochondrial fission in neuroblastoma. Free Radic Biol Med 2021; 176:62-72. [PMID: 34534628 DOI: 10.1016/j.freeradbiomed.2021.09.010] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/03/2021] [Accepted: 09/13/2021] [Indexed: 11/19/2022]
Abstract
The cancer-testis antigen CTCFL/BORIS (Brother of Regulator of Imprinted Sites) also known, as a paralog of CTCF -the "master weaver of the genome" is a key transcriptional regulator. Both CTCF and BORIS can bind to the same promoter sequence and recruit diverse proteins. BORIS is also known to be associated with actively translating ribosomes suggesting new roles of BORIS in gene expression. Various studies have attempted to elucidate the role of BORIS in different cell types for the development of targeted therapy depending on molecular signatures and genetic aberrations associated with the disease type. The current study is focused on its role in neuroblastoma. Here, we have deciphered the role of BORIS on TGFβ1 pathway which is highly affected by embryonic CTCFL expression. BORIS stabilized the SMAD3 and SMAD4 transcripts leading to prolonged TGFβ activation. Further, loss of BORIS abrogated both the canonical and non-canonical TGFβ signaling suggesting the dependency of TGFβ on BORIS. The effect on the metabolic profile of the neuroblastoma cells were analyzed with change in BORIS expression levels. Also, ectopic expression of BORIS leads to Drp1 phosphorylation (Ser616) enhancing mitochondrial fission followed by a switch in cellular metabolism towards glycolysis. This cellular metabolism switch was in turn supported with a reduction in oxygen consumption rate upon BORIS expression. Interestingly methylome analysis revealed patterns of global histone methylation, a mechanism that regulate important signaling pathways in neuroblastoma. This study analyzes the consequence of BORIS expression in neuroblastoma cells and thereby elucidate its downstream targets, which could help in designing effective therapeutic for treating neuroblastoma. Similar results were obtained in both MYCN amplified and non-MYCN neuroblastoma cell lines, indicating a common mechanism of BORIS/CTCFL action in neuroblastoma.
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Affiliation(s)
- Venkata Krishna Kanth Makani
- Department of Applied Biology, CSIR- Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, 50007, India; Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Jolly Janette Mendonza
- Department of Applied Biology, CSIR- Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, 50007, India; Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Prajitha Mohandas Edathara
- Department of Applied Biology, CSIR- Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, 50007, India
| | - Suresh Yerramsetty
- Department of Applied Biology, CSIR- Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, 50007, India
| | - Manika Pal Bhadra
- Department of Applied Biology, CSIR- Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, 50007, India.
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9
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Edathara PM, Chintalapally S, Makani VKK, Pant C, Yerramsetty S, D Rao M, Bhadra MP. Inhibitory role of oleanolic acid and esculetin in HeLa cells involve multiple signaling pathways. Gene 2020; 771:145370. [PMID: 33346097 DOI: 10.1016/j.gene.2020.145370] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 10/12/2020] [Revised: 12/04/2020] [Accepted: 12/11/2020] [Indexed: 11/30/2022]
Abstract
The global burden of cervical cancer from low and middle-income groups is increasing at alarming rates with more than half a million women being diagnosed every year. Although the disease is largely preventable when screened and diagnosed in earlier stages, the development of resistance and relapse had resulted in a poor prognosis. Therefore, a comprehensive approach needs to be put forward to understand and develop new preventive and therapeutic strategies to effectively combat cancer. Recently, much attention has been diverted to plant-derivatives for the treatment as they exhibit potent anti-cancer properties and side-effects caused by chemotherapeutic agents can also be prevented. Oleanolic acid and Esculetin are natural compounds known for their anti-cancer properties. Hence, the present study investigates the effect and mechanism of these compounds on cervical carcinoma, using HeLa cells. Posttreatment, it was observed that these compounds inhibited proliferation by both arresting the cells in the sub G1 phase and inducing senescence. Also, a marked reduction in the migration and cell survival was observed, as evidenced by results obtained from wound healing assay and Annexin V-FITC/PI staining. Furthermore, studies on the expression pattern of genes involved in major signaling pathways demonstrated a profound effect of these compounds. Taken together, the results of our study suggest that both Oleanolic acid and esculetin serve as a plausible therapeutic agent.
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Affiliation(s)
| | - Shivakanth Chintalapally
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India; Department of Genetics, Osmania University, Hyderabad, Telangana, India
| | - Venkata Krishna Kanth Makani
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, India
| | - Chitrakshi Pant
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
| | - Suresh Yerramsetty
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
| | - Manohar D Rao
- Department of Genetics, Osmania University, Hyderabad, Telangana, India
| | - Manika Pal Bhadra
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, India.
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Das P, Bhadra MP. Correction to ‘Histone deacetylase (Rpd3) regulates
Drosophila
early brain development via regulation of Tailless’. Open Biol 2020; 10:200323. [PMID: 33081640 PMCID: PMC7653350 DOI: 10.1098/rsob.200323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Abstract
Tailless is a committed transcriptional repressor and principal regulator of the brain and eye development in Drosophila. Rpd3, the histone deacetylase, is an established repressor that interacts with co-repressors like Sin3a, Prospero, Brakeless and Atrophin. This study aims at deciphering the role of Rpd3 in embryonic segmentation and larval brain development in Drosophila. It delineates the mechanism of Tailless regulation by Rpd3, along with its interacting partners. There was a significant reduction in Tailless in Rpd3 heteroallelic mutant embryos, substantiating that Rpd3 is indispensable for the normal Tailless expression. The expression of the primary readout, Tailless was correlative to the expression of the neural cell adhesion molecule homologue, Fascilin2 (Fas2). Rpd3 also aids in the proper development of the mushroom body. Both Tailless and Fas2 expression are reported to be antagonistic to the epidermal growth factor receptor (EGFR) expression. The decrease in Tailless and Fas2 expression highlights that EGFR is upregulated in the larval mutants, hindering brain development. This study outlines the axis comprising Rpd3, dEGFR, Tailless and Fas2, which interact to fine-tune the early segmentation and larval brain development. Therefore, Rpd3 along with Tailless has immense significance in early embryogenesis and development of the larval brain.
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Affiliation(s)
- Paromita Das
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR) Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai 600 113, India
| | - Manika Pal Bhadra
- Applied Biology Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500 007, India
- Academy of Scientific and Innovative Research (AcSIR) Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai 600 113, India
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Raut GK, Manchineela S, Chakrabarti M, Bhukya CK, Naini R, Venkateshwari A, Reddy VD, Mendonza JJ, Suresh Y, Nallari P, Bhadra MP. Imine stilbene analog ameliorate isoproterenol-induced cardiac hypertrophy and hydrogen peroxide-induced apoptosis. Free Radic Biol Med 2020; 153:80-88. [PMID: 32311492 DOI: 10.1016/j.freeradbiomed.2020.04.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/12/2020] [Accepted: 04/13/2020] [Indexed: 12/20/2022]
Abstract
Cardiac hypertrophy is an adaptive response to stress, in order to maintain proper cardiac function. However, sustained stress leads to pathological hypertrophy accompanied by maladaptive responses and ultimately heart failure. At the cellular level, cardiomyocyte hypertrophy is characterized by an increase in myocyte size, reactivation of the fetal gene markers, disassembly of the sarcomere and transcriptional remodelling which are regulated by heart-specific transcription factors like MEF2, GATA4 and immediate early genes like c-jun and c-fos.2. It has been explored and established that the hypertrophic process is associated by oxidative stress and mediated by pathways involving several terminal stress kinases like P38, JNK and ERK1/2. Stilbenoids are bioactive polyphenols and earlier studies have shown that imine stilbene exert cardioprotective and anti aging effects by acting as modulators of Sirt1. The present study was aimed at designing and synthesizing a series of imine stilbene analogs and investigate its anti hypertrophic effects and regulatory mechanism in cardiac hypertrophy and apoptosis. Interestingly one of the analog, compound 3e (10 μM) alleviated isoproterenol (ISO, 25 μM) induced hypertrophy in rat cardiomyocyte (H9c2) cells by showing a marked decrease in the myocyte size. Further, compound 3e also restored the cardiac function by activating the metabolic stress sensor, AMPK. Moreover, molecular docking studies showed stable binding between compound 3e and GSK3β suggesting that compound 3e may directly regulate GSK3β activity and ameliorate ISO-induced cardiac hypertrophy. In agreement with this, compound 3e also modulated the crosstalk of all the hypertrophy inducing terminal Kinases by bringing down the expression to near control conditions. The compound also relieved H2O2 (100 μM) mediated ROS and normalized abnormal mitochondrial oxygen demand in hypertrophic conditions indicating the possibility of the compound to show promise in playing a role in cardiac hypertrophy.
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Affiliation(s)
- Ganesh Kumar Raut
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, 600113, India
| | - Sairam Manchineela
- Department of Genetics, Osmania University, Amberpet, Hyderabad, 500007, Telangana State, India
| | - Moumita Chakrabarti
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, 600113, India
| | - Chaitanya Kumar Bhukya
- Department of Genetics, Osmania University, Amberpet, Hyderabad, 500007, Telangana State, India
| | - Raju Naini
- Center for Plant Molecular Biology, Osmania University, Amberpet, Hyderabad, 500007, Telangana State, India
| | - A Venkateshwari
- Institute of Genetics & Hospital for Genetics Disease, Osmania University, Ameerpet, Hyderabad, 500007, Telangana State, India
| | - V D Reddy
- Center for Plant Molecular Biology, Osmania University, Amberpet, Hyderabad, 500007, Telangana State, India
| | - Jolly Janette Mendonza
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, 600113, India
| | - Y Suresh
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, Telangana State, India
| | - Pratibha Nallari
- Department of Genetics, Osmania University, Amberpet, Hyderabad, 500007, Telangana State, India
| | - Manika Pal Bhadra
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, 600113, India.
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Raut GK, Chakrabarti M, Pamarthy D, Bhadra MP. Glucose starvation-induced oxidative stress causes mitochondrial dysfunction and apoptosis via Prohibitin 1 upregulation in human breast cancer cells. Free Radic Biol Med 2019; 145:428-441. [PMID: 31614178 DOI: 10.1016/j.freeradbiomed.2019.09.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/12/2019] [Accepted: 09/20/2019] [Indexed: 12/13/2022]
Abstract
In recent years there has been an upsurge in research focusing on reprogramming cancer cells through understanding of their metabolic signatures. Alterations in mitochondrial bioenergetics and impaired mitochondrial function may serve as effective targeting strategies especially in triple-negative breast cancers (TNBCs) where hormone receptors and endocrine therapy are absent. Glucose starvation (GS) of MDA-MB-231 and MCF-7 breast cancer cells showed decrease in mitochondrial Oxygen Consumption Rate (OCR), which was rescuable to control level through addition of exogenous antioxidant N-Acetyl Cysteine (NAC). Mechanistically, GS led to increase in mitochondrial ROS and upregulation of the pleiotropic protein, Prohibitin 1 (PHB1), leading to its dissociation from Dynamin-related protein 1 (DRP1), perturbance of mitochondrial membrane potential (MMP) and triggering of the apoptosis cascade. PHB1 also reduced the invasive and migratory potential of both cell lines. We emphasize that glucose starvation remarkably sensitized the highly glycolytic metastatic TNBC cell line, MDA-MB-231 to apoptosis and decreased its migratory potential. Based on our findings, additional TNBC cell lines can be evaluated and a nutritional paradigm be proposed for anticancer therapy.
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Affiliation(s)
- Ganesh Kumar Raut
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, 600 113, India
| | - Moumita Chakrabarti
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, 600 113, India
| | - Deepika Pamarthy
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, 600 113, India
| | - Manika Pal Bhadra
- Applied Biology Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, Telangana State, India; Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, 600 113, India.
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Suresh N, Suresh A, Yerramsetty S, Bhadra MP, Alvala M, Sekhar KVGC. Anti-proliferative activity, molecular modeling studies and interaction with calf thymus DNA of novel ciprofloxacin analogues. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1528-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chowdhury D, Kumar D, Sarma P, Tangutur AD, Bhadra MP. PHB in Cardiovascular and Other Diseases: Present Knowledge and Implications. Curr Drug Targets 2018; 18:1836-1851. [PMID: 27557820 DOI: 10.2174/1389450117666160824161225] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 05/28/2016] [Accepted: 05/30/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND Prohibitin (PHB) is overtly conserved evolutionarily and ubiquitously expressed protein with pleiotropic functions in diverse cellular compartments. However, regulation and function of these proteins in different cells, tissues and in various diseases is different as evidenced by expression of these proteins which is found to be reduced in heart diseases, kidney diseases, lung disease, Crohn's disease and ulcerative colitis but this protein is highly expressed in diverse cancers. The mechanism by which this protein acts at the molecular level in different subcellular localizations or in different cells or tissues in different conditions (diseases or normal) has remained poorly understood. There are several studies reported to understand and decipher PHB's role in diseases and/or cancers of ovary, lung, stomach, thyroid, liver, blood, prostrate, gastric, esophagus, glioma, breast, bladder etc. where PHB is shown to act through mechanisms by acting as oncogene, tumor suppressor, antioxidant, antiapoptotic, in angiogenesis, autophagy etc. OBJECTIVE This review specifically gives attention to the functional role and regulatory mechanism of PHB proteins in cardiovascular health and diseases and its associated implications. Various molecular pathways involved in PHB function and its regulation are analyzed. CONCLUSION PHB is rapidly emerging as a critical target molecule for cardiovascular signaling. Progress in delineating CVD and mechanisms of PHB in diverse molecular pathways is essential for determining when and how PHB targeted therapy might be feasible. In this regard, new therapies targeting PHB may best be applied in the future together with molecular profiling of CVD for clinical stratification of disease diagnosis and prognosis.
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Affiliation(s)
- Debabrata Chowdhury
- Centre for Chemical Biology, CSIR-IICT, Tarnaka, Hyderabad, Telangana, India
| | - Dinesh Kumar
- Centre for Chemical Biology, CSIR-IICT, Tarnaka, Hyderabad, Telangana, India
| | - Pranjal Sarma
- Centre for Chemical Biology, CSIR-IICT, Tarnaka, Hyderabad, Telangana, India
| | | | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR-IICT, Tarnaka, Hyderabad, Telangana, India
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Patel N, Garikapati KR, Makani VKK, Nair AD, Vangara N, Bhadra U, Pal Bhadra M. Regulating BMI1 expression via miRNAs promote Mesenchymal to Epithelial Transition (MET) and sensitizes breast cancer cell to chemotherapeutic drug. PLoS One 2018; 13:e0190245. [PMID: 29394261 PMCID: PMC5796693 DOI: 10.1371/journal.pone.0190245] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 12/11/2017] [Indexed: 12/19/2022] Open
Abstract
Polycomb group (PcG) proteinB lymphoma Mo-MLV insertion region 1 homolog (BMI1) is a transcriptional repressor that plays an important role in human carcinogenesis. MicroRNAs (miRNAs) are endogenous small non-coding RNAsthat implicate a negative regulation on gene expression. Deregulation of the expression of miRNAs has been implicated in tumorigenesis. Here, we have shown that knock-down ofBMI1increases theexpression of tumor-suppressivemiRNAs. Elevated levels of expression of miR-200a, miR-200b, miR-15a, miR-429, miR-203were observed upon knock-down of BMI1. Up-regulation of these miRNAsleads to down-regulation ofPRC1 group of proteins i.e. BMI1, RING1A, RING1B and Ub-H2A. Interestingly, overexpression of miR-200a, miR-200b and miR-15aalso produced decreased BMI1 and Ub-H2A protein expression in the CD44+ Cancer Stem Cellpopulation of MDAMB-231cells. Also,elevating the levels of BMI1 regulated miRNAspromoted Mesenchymal to Epithelial transition by regulating the expression of N-Cadherin, Vimentin, β-Catenin, Zeb, Snail thereby resulting in decreased invasion, migration and proliferation. Here, we also report that miR-200a, miR-200b, miR-203 accretes the sensitivity of MDAMB-231 cells to the histone deacetylase inhibitor (HDACi) SAHA and miR-15a sensitized breast cancer cells to the chemotherapeutic drug cisplatin leading to apoptosis. These findings suggest that modulatingspecific miRNAs may serve as a therapeutic approach for the treatment of breast cancer
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Affiliation(s)
- Nibedita Patel
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, India
| | - Koteswara Rao Garikapati
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, India
- Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, Taramani, Chennai, India
| | - Venkata Krishna Kanth Makani
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, India
| | - Ayikkara Drishya Nair
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, India
| | - Namratha Vangara
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, India
| | - Utpal Bhadra
- Gene Silencing Group, Centre for Cellular and Molecular Biology, Hyderabad, Telangana State, India
| | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, India
- * E-mail:
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Mondal T, Bag I, SNCVL P, Garikapati KR, Bhadra U, Pal Bhadra M. Two way controls of apoptotic regulators consign DmArgonaute-1 a better clasp on it. PLoS One 2018; 13:e0190548. [PMID: 29385168 PMCID: PMC5791970 DOI: 10.1371/journal.pone.0190548] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 12/16/2017] [Indexed: 02/02/2023] Open
Abstract
Argonaute family proteins are well conserved among all organisms. Its role in mitotic cell cycle progression and apoptotic cell elimination is poorly understood. Earlier we have established the contribution of Ago-1 in cell cycle control related to G2/M cyclin in Drosophila. Here we have extended our study in understanding the relationship of Ago-1 in regulating apoptosis during Drosophila development. Apoptosis play a critical role in controlling organ shape and size during development of multi cellular organism. Multifarious regulatory pathways control apoptosis during development among which highly conserved JNK (c-Jun N-terminal kinase) pathway play a crucial role. Here we have over expressed Ago-1 in Drosophila eye and brain by employing UAS (upstream activation sequence)-GAL4 system under the expression of eye and brain specific driver. Over expression of Ago-1 resulted in reduced number of ommatidia in the eye and produced smaller size brain in adult and larval Drosophila. A drastic reversal of the phenotype towards normal was observed upon introduction of a single copy of the dominant negative mutation of basket (bsk, Drosophila homolog of JNK) indicating an active and physical involvement of the bsk with Ago-1 in inducing developmental apoptotic process. Further study showed that Ago-1 stimulates phosphorylation of JNK through transforming growth factor-β activated kinase 1- hemipterous (Tak1-hep) axis of JNK pathway. JNK phosphorylation results in up regulation of pro-apoptotic genes head involution defective (hid), grim & reaper (rpr) and induces activation of Drosophila caspases (cysteinyl aspartate proteinases);DRONC (Death regulator Nedd2-like caspase), ICE (alternatively Drice, Death related ICE-like caspase) and DCP1 (Death caspase-1) by inhibiting apoptotic inhibitor protein DIAP1 (Death-associated inhibitor of apoptosis 1). Further, Ago-1 also inhibits miR-14 expression to trigger apoptosis. Our findings propose that Ago-1 acts as a key regulator in controlling cell death, tumor regression and stress response in metazoan providing a constructive bridge between RNAi machinery and cell death.
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Affiliation(s)
- Tanmoy Mondal
- Department of Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-IICT Campus, Hyderabad, India
| | - Indira Bag
- Department of Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, India
| | - Pushpavalli SNCVL
- Department of Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, India
| | - Koteswara Rao Garikapati
- Department of Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, India
| | - Utpal Bhadra
- Gene Silencing and Functional Genomics Group, CSIR-Centre For Cellular and Molecular Biology, Uppal Road, Hyderabad, Telangana State, India
| | - Manika Pal Bhadra
- Department of Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-IICT Campus, Hyderabad, India
- * E-mail: ,
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Dadmal TL, Appalanaidu K, Kumbhare RM, Mondal T, Ramaiah MJ, Bhadra MP. Synthesis and biological evaluation of triazole and isoxazole-tagged benzothiazole/benzoxazole derivatives as potent cytotoxic agents. NEW J CHEM 2018. [DOI: 10.1039/c8nj01249k] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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
Cancer is a major health problem and the most upsetting disease in humans, leading to death in both developed and developing countries.
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Affiliation(s)
- Tulshiram L. Dadmal
- Fluoroorganic Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Government of Maharashtra's
| | - K. Appalanaidu
- Fluoroorganic Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
| | - Ravindra M. Kumbhare
- Fluoroorganic Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
| | - Tanmoy Mondal
- Centre for Chemical Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - M. Janaki Ramaiah
- Centre for Chemical Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
- School of Chemical and Biotechnology
| | - Manika Pal Bhadra
- Centre for Chemical Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
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Syed Hussain S, Donempudi S, Tammishetti S, Garikapati KR, Bhadra MP. “Cell adhesion resistant, UV curable, polymer zinc oxide nanocomposite materials for intraocular lens application”. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4234] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shaik Syed Hussain
- Polymers and Functional Materials Division; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Shailaja Donempudi
- Polymers and Functional Materials Division; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Shekharam Tammishetti
- Polymers and Functional Materials Division; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Koteswara Rao Garikapati
- Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Manika Pal Bhadra
- Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
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Patel N, Garikapati KR, Pandita RK, Singh DK, Pandita TK, Bhadra U, Bhadra MP. Erratum: miR-15a/miR-16 down-regulates BMI1, impacting Ub-H2A mediated DNA repair and breast cancer cell sensitivity to doxorubicin. Sci Rep 2017; 7:12932. [PMID: 29018209 PMCID: PMC5635132 DOI: 10.1038/s41598-017-12314-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- Nibedita Patel
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, 500007, India
| | - Koteswara Rao Garikapati
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, 600 113, India
| | - Raj K Pandita
- Department of Radiation Oncology, Weill Cornell Medical College, The Methodist Hospital Research Institute, Houston, TX, 77030, USA
| | - Dharmendra Kumar Singh
- Department of Radiation Oncology, Weill Cornell Medical College, The Methodist Hospital Research Institute, Houston, TX, 77030, USA
| | - Tej K Pandita
- Department of Radiation Oncology, Weill Cornell Medical College, The Methodist Hospital Research Institute, Houston, TX, 77030, USA
| | - Utpal Bhadra
- Gene Silencing Group, Centre for Cellular and Molecular Biology, Hyderabad, Telangana State, 500007, India
| | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, 500007, India.
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Bhadra U, Thakkar N, Das P, Pal Bhadra M. Evolution of circadian rhythms: from bacteria to human. Sleep Med 2017; 35:49-61. [DOI: 10.1016/j.sleep.2017.04.008] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 04/07/2017] [Accepted: 04/18/2017] [Indexed: 12/20/2022]
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Janaki Ramaiah M, Naushad SM, Lavanya A, Srinivas C, Anjana Devi T, Sampathkumar S, Dharan DB, Bhadra MP. Scriptaid cause histone deacetylase inhibition and cell cycle arrest in HeLa cancer cells: A study on structural and functional aspects. Gene 2017; 627:379-386. [PMID: 28668345 DOI: 10.1016/j.gene.2017.06.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 01/25/2017] [Revised: 05/31/2017] [Accepted: 06/15/2017] [Indexed: 12/11/2022]
Abstract
Scriptaid (SCR), a well-known histone deacetylase inhibitor, cause various cellular effects such as cell growth inhibition and apoptosis. In this study, we have evaluated the anti-cancer effects of Scriptaid in HeLa cells, IMR-32 and HepG2 cells. Scriptaid inhibited the growth of HeLa cells with IC50 of 2μM at 48h in a dose-dependent manner. Flow-cytometric analysis indicated that SCR induced apoptosis. Scriptaid was found to inhibit HDAC-8 effectively than other HDAC inhibitor such as TSA as observed by HDAC-8 assay, Western blotting and modelling study. This observation was further strengthened by an artificial neuronal network (ANN) model.
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Affiliation(s)
- M Janaki Ramaiah
- School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, India.
| | - Shaik Mohammad Naushad
- School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, India; Sandor Life Sciences Pvt. Ltd, Banjara Hills, Road No: 3, Hyderabad-500034, India
| | - A Lavanya
- Chemical Biology Department, Indian Institute of Chemical Technology (IICT), Hyderabad 500007, India
| | - Chatla Srinivas
- Chemical Biology Department, Indian Institute of Chemical Technology (IICT), Hyderabad 500007, India
| | - Tangutur Anjana Devi
- Chemical Biology Department, Indian Institute of Chemical Technology (IICT), Hyderabad 500007, India
| | | | | | - Manika Pal Bhadra
- Chemical Biology Department, Indian Institute of Chemical Technology (IICT), Hyderabad 500007, India.
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Patel N, Garikapati KR, Pandita RK, Singh DK, Pandita TK, Bhadra U, Bhadra MP. miR-15a/miR-16 down-regulates BMI1, impacting Ub-H2A mediated DNA repair and breast cancer cell sensitivity to doxorubicin. Sci Rep 2017; 7:4263. [PMID: 28655885 PMCID: PMC5487337 DOI: 10.1038/s41598-017-02800-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 04/18/2017] [Indexed: 12/18/2022] Open
Abstract
The B-lymphoma Moloney murine leukemia virus insertion region-1 protein (BMI1) acts as an oncogene in various cancers, including breast cancer. Recent evidence suggests that BMI1 is rapidly recruited to sites of DNA double strand breaks where it facilitates histone H2A ubiquitination and DNA double strand break repair by homologous recombination. Here we show that miR-15a and miR-16 expressionis decreased during the initial period after DNA damage where it would otherwise down-regulate BMI1, impairing DNA repair. Elevated miR-15a and miR-16 levels down-regulated BMI1 and other polycomb group proteins like RING1A, RING1B, EZH2 and also altered the expression of proteins associated with the BMI1 dependent ubiquitination pathway. Antagonizing the expression of miR-15a and miR-16, enhanced BMI1 protein levels and increased DNA repair. Further, overexpression of miR-15a and miR-16 sensitized breast cancer cells to DNA damage induced by the chemotherapeutic drug doxorubicin. Our results suggest that miR-15a and miR-16 mediate the down-regulation of BMI1, which impedes DNA repair while elevated levels can sensitize breast cancer cells to doxorubicin leading to apoptotic cell death. This data identifies a new target for manipulating DNA damage response that could impact the development of improved therapeutics for breast cancer.
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Affiliation(s)
- Nibedita Patel
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, 500007, India
| | - Koteswara Rao Garikapati
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, 600 113, India
| | - Raj K Pandita
- Department of Radiation Oncology, Weill Cornell Medical College, The Methodist Hospital Research Institute, Houston, TX, 77030, USA
| | - Dharmendra Kumar Singh
- Department of Radiation Oncology, Weill Cornell Medical College, The Methodist Hospital Research Institute, Houston, TX, 77030, USA
| | - Tej K Pandita
- Department of Radiation Oncology, Weill Cornell Medical College, The Methodist Hospital Research Institute, Houston, TX, 77030, USA
| | - Utpal Bhadra
- Gene Silencing Group, Centre for Cellular and Molecular Biology, Hyderabad, Telangana State, 500007, India
| | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana State, 500007, India.
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Mathew R, Pal Bhadra M, Bhadra U. Insulin/insulin-like growth factor-1 signalling (IIS) based regulation of lifespan across species. Biogerontology 2017; 18:35-53. [DOI: 10.1007/s10522-016-9670-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 11/25/2016] [Indexed: 12/21/2022]
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25
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Garikapati KR, Patel N, Makani VKK, Cilamkoti P, Bhadra U, Bhadra MP. Down-regulation of BORIS/CTCFL efficiently regulates cancer stemness and metastasis in MYCN amplified neuroblastoma cell line by modulating Wnt/β-catenin signaling pathway. Biochem Biophys Res Commun 2017; 484:93-99. [PMID: 28104398 DOI: 10.1016/j.bbrc.2017.01.066] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [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: 01/09/2017] [Accepted: 01/14/2017] [Indexed: 11/15/2022]
Abstract
BORIS/CTCFL is a vital nucleotide binding protein expressed during embryogenesis and gametogenesis. BORIS/CTCFL is the paralogue of transcriptional repressor protein CTCF, which is aberrantly expressed in various malignancies and primarily re-expressed in cancer stem cells (CSCs). The mechanism behind regulation of BORIS in various cancer conditions and tumor metastases is so far not explored in detail. The aim of the study was to understand the influence of BORIS/CTCFL on stemness and metastasis by regulating well-known oncogenes and related signaling pathways. In our study, we have identified a cross-talk between expression of BORIS/CTCFL and Wnt/β-catenin signaling pathway, which plays a crucial role in various processes including ontogenesis, embryogenesis and maintenance of stem cell properties. Upon knockdown of BORIS/CTCFL, we observed an upregulation of Mesenchymal to Epithelial transition markers such as E-cad and downregulation of Epithelial to Mesenchymal transition markers such as N-CAD, Vimentin, SNAIL, etc. This transition was accomplished by activation of Wnt/β-catenin signaling pathway by regulating upstream and downstream Wnt associated proteins including β-catenin, Wnt3a/5a, CD44, MYC etc. We also identified that BMI1, an oncogene belonging to polycomb group expressed positively with levels of BORIS/CTCFL. Our study implicates the role of BORIS/CTCFL in maintenance of stemness and in transition from mesenchymal to epithelial state in MYC amplified neuroblastoma IMR-32 cells. Effectively controlling BORIS/CTCFL levels can inhibit disease establishment and hence can be considered as a potent target for cancer therapy.
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Affiliation(s)
- Koteswara Rao Garikapati
- Department of Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai, India
| | - Nibedita Patel
- Department of Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | | | - Priyanka Cilamkoti
- Department of Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Utpal Bhadra
- Functional Genomics and Gene Silencing Group, CSIR-Centre for Cellular and Molecular Biology, Hyderabad, India
| | - Manika Pal Bhadra
- Department of Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.
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26
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Reddy TL, Garikapati KR, Reddy SG, Reddy BVS, Yadav JS, Bhadra U, Bhadra MP. Simultaneous delivery of Paclitaxel and Bcl-2 siRNA via pH-Sensitive liposomal nanocarrier for the synergistic treatment of melanoma. Sci Rep 2016; 6:35223. [PMID: 27786239 PMCID: PMC5081533 DOI: 10.1038/srep35223] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 09/26/2016] [Indexed: 12/12/2022] Open
Abstract
pH-sensitive drug carriers that are sensitive to the acidic (pH = ~6.5) microenvironments of tumor tissues have been primarily used as effective drug/gene/siRNA/microRNA carriers for releasing their payloads to tumor cells/tissues. Resistance to various drugs has become a big hurdle in systemic chemotherapy in cancer. Therefore delivery of chemotherapeutic agents and siRNA's targeting anti apoptotic genes possess advantages to overcome the efflux pump mediated and anti apoptosis-related drug resistance. Here, we report the development of nanocarrier system prepared from kojic acid backbone-based cationic amphiphile containing endosomal pH-sensitive imidazole ring. This pH-sensitive liposomal nanocarrier effectively delivers anti-cancer drug (Paclitaxel; PTX) and siRNA (Bcl-2), and significantly inhibits cell proliferation and reduces tumor growth. Tumor inhibition response attributes to the synergistic effect of PTX potency and MDR reversing ability of Bcl-2 siRNA in the tumor supporting that kojic acid based liposomal pH-sensitive nanocarrier as efficient vehicle for systemic co-delivery of drugs and siRNA.
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MESH Headings
- Animals
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/pharmacology
- Apoptosis/drug effects
- Cell Line, Tumor
- Drug Compounding
- Drug Delivery Systems
- Gene Expression Regulation, Neoplastic/drug effects
- Hydrogen-Ion Concentration
- Imidazoles/chemistry
- Liposomes/chemistry
- Liposomes/pharmacokinetics
- Melanoma, Experimental/genetics
- Melanoma, Experimental/metabolism
- Melanoma, Experimental/pathology
- Melanoma, Experimental/therapy
- Mice
- Nanoparticles/administration & dosage
- Nanoparticles/chemistry
- Paclitaxel/chemistry
- Paclitaxel/pharmacology
- Phosphatidylethanolamines/chemistry
- Proto-Oncogene Proteins c-bcl-2/antagonists & inhibitors
- Proto-Oncogene Proteins c-bcl-2/genetics
- Proto-Oncogene Proteins c-bcl-2/metabolism
- Pyrones/chemistry
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Skin Neoplasms/genetics
- Skin Neoplasms/metabolism
- Skin Neoplasms/pathology
- Skin Neoplasms/therapy
- Tumor Burden/drug effects
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Affiliation(s)
- Teegala Lakshminarayan Reddy
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, India
- Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai-600 113, India
| | - Koteswara Rao Garikapati
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, India
- Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai-600 113, India
| | - S. Gopal Reddy
- Centre for Semiochemicals, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, India
| | - B. V. Subba Reddy
- Centre for Semiochemicals, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, India
| | - J. S. Yadav
- Centre for Semiochemicals, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, India
| | - Utpal Bhadra
- Functional Genomics and Gene Silencing Group, CSIR-Centre for Cellular and Molecular Biology (CCMB), Uppal Road, Hyderabad-500007, India
| | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, India
- Academy of Scientific and Innovative Research (AcSIR), Training and Development Complex, CSIR Campus, CSIR Road, Taramani, Chennai-600 113, India
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27
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Shaik SH, Donempudi S, Tammishetti S, Rao Garikapati K, Pal Bhadra M. Interpenetrating photopolymers for intraocular lens application. J Appl Polym Sci 2016. [DOI: 10.1002/app.44496] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Syed Hussain Shaik
- Polymers & Functional Materials Division; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Shailaja Donempudi
- Polymers & Functional Materials Division; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Shekharam Tammishetti
- Polymers & Functional Materials Division; CSIR-Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Koteswara Rao Garikapati
- Centre for Chemical Biology, CSIR- Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
| | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR- Indian Institute of Chemical Technology; Tarnaka Hyderabad 500007 India
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28
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Srinivas C, Swathi V, Priyanka C, Anjana Devi T, Subba Reddy BV, Janaki Ramaiah M, Bhadra U, Bhadra MP. Novel SAHA analogues inhibit HDACs, induce apoptosis and modulate the expression of microRNAs in hepatocellular carcinoma. Apoptosis 2016; 21:1249-1264. [DOI: 10.1007/s10495-016-1278-6] [Citation(s) in RCA: 16] [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] [Indexed: 02/08/2023]
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29
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Pal D, Mukhopadhyay D, Ramaiah MJ, Sarma P, Bhadra U, Bhadra MP. Regulation of Cell Proliferation and Migration by miR-203 via GAS41/miR-10b Axis in Human Glioblastoma Cells. PLoS One 2016; 11:e0159092. [PMID: 27467502 PMCID: PMC4965126 DOI: 10.1371/journal.pone.0159092] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 06/27/2016] [Indexed: 12/21/2022] Open
Abstract
Glioma amplified sequence 41(GAS41) is a potent transcription factor that play a crucial role in cell proliferation and survival. In glioblastoma, the expression of GAS41 at both transcriptional and post transcriptional level needs to be tightly maintained in response to cellular signals. Micro RNAs (miRNA) are small non coding RNA that act as important regulators for modulating the expression of various target genes. Studies have shown that several miRNAs play role in the post-transcriptional regulation of GAS41. Here we identified GAS41 as a novel target for endogenous miR-203 and demonstrate an inverse correlation of miR-203 expression with GAS41 in glioma cell lines (HNGC2 and U87). Over expression of miR-203 negatively regulates GAS41 expression in U87 and HNGC2 cell lines. Moreover, miR-203 restrained miR-10b action by suppressing GAS41. GAS41 is essential for repressing p53 in tumor suppressor pathway during cell proliferation. Enforced expression of GAS41 produced contradictory effect on miR-203 but was able to enhance p53 tumor suppressor pathway associated protein. It was also found that miR-203 maintains the stability of p53 as knock down of p53 expression using siRNA resulted in down regulation of pri-miR and mature miR-203 expression. Conversely reconstitution of miR-203 expression induced apoptosis and inhibited migratory property of glioma cells. Taken together, we show that miR-203 is a key negative regulator of GAS41 and acts as tumor suppressor microRNA in glioma.
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Affiliation(s)
- Dhananjaya Pal
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, India
- Academy of Scientific and Innovative Research, Arunasafali Marg, New Delhi, 110025, India
| | - Debasmita Mukhopadhyay
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, India
| | - M. Janaki Ramaiah
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, India
- School of Chemical and Biotechnology, SASTRA University, Tirumalaisamudram, Thanjavur, 613401, India
| | - Pranjal Sarma
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, India
- Functional Genomics and Gene silencing group, CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad, 500007, India
| | - Utpal Bhadra
- Functional Genomics and Gene silencing group, CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad, 500007, India
| | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, India
- Academy of Scientific and Innovative Research, Arunasafali Marg, New Delhi, 110025, India
- * E-mail: ;
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30
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Asalla S, Girada SB, Kuna RS, Chowdhury D, Kandagatla B, Oruganti S, Bhadra U, Bhadra MP, Kalivendi SV, Rao SP, Row A, Ibrahim A, Ghosh PP, Mitra P. Restoring Mitochondrial Function: A Small Molecule-mediated Approach to Enhance Glucose Stimulated Insulin Secretion in Cholesterol Accumulated Pancreatic beta cells. Sci Rep 2016; 6:27513. [PMID: 27282931 PMCID: PMC4901343 DOI: 10.1038/srep27513] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 05/17/2016] [Indexed: 12/20/2022] Open
Abstract
Dyslipidemia, particularly the elevated serum cholesterol levels, aggravate the pathophysiology of type 2 diabetes. In the present study we explored the relationship between fasting blood sugar and serum lipid parameters in human volunteers which revealed a significant linear effect of serum cholesterol on fasting blood glucose. Short term feeding of cholesterol enriched diet to rodent model resulted in elevated serum cholesterol levels, cholesterol accumulation in pancreatic islets and hyperinsulinemia with modest increase in plasma glucose level. To explore the mechanism, we treated cultured BRIN-BD11 pancreatic beta cells with soluble cholesterol. Our data shows that cholesterol treatment of cultured pancreatic beta cells enhances total cellular cholesterol. While one hour cholesterol exposure enhances insulin exocytosis, overnight cholesterol accumulation in cultured pancreatic beta cells affects cellular respiration, and inhibits Glucose stimulated insulin secretion. We further report that (E)-4-Chloro-2-(1-(2-(2,4,6-trichlorophenyl) hydrazono) ethyl) phenol (small molecule M1) prevents the cholesterol mediated blunting of cellular respiration and potentiates Glucose stimulated insulin secretion which was abolished in pancreatic beta cells on cholesterol accumulation.
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Affiliation(s)
- Suman Asalla
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, Telengana, 500046, India.,Dept. of Biochemistry, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad, Telangana, 500046, India
| | - Shravan Babu Girada
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, Telengana, 500046, India
| | - Ramya S Kuna
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, Telengana, 500046, India
| | - Debabrata Chowdhury
- Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Telengana, Hyderabad, 500007, India
| | - Bhaskar Kandagatla
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, Telengana, 500046, India
| | - Srinivas Oruganti
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, Telengana, 500046, India
| | - Utpal Bhadra
- Center of Cellular and Molecular Biology, Habsiguda, Uppal Road, Hyderabad, 500007, India
| | - Manika Pal Bhadra
- Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Telengana, Hyderabad, 500007, India
| | - Shasi Vardhan Kalivendi
- Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Telengana, Hyderabad, 500007, India
| | - Swetha Pavani Rao
- Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Telengana, Hyderabad, 500007, India
| | - Anupama Row
- University of Hyderabad Health Center, University of Hyderabad, Gachibowli, Hyderabad, Telengana, 500046, India
| | - A Ibrahim
- Department of Biochemistry, National Institute of Nutrition, Hyderabad 500007, India
| | - Partha Pratim Ghosh
- Microsoft India (R&D) Pvt. Ltd, Gachibowli, Hyderabad, Telengana, 500032, India
| | - Prasenjit Mitra
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, Telengana, 500046, India
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Abstract
In recent years, long non-coding RNAs (lncRNAs) have attracted the attention of researchers with their involvement in all facets of life. LncRNAs are transcripts of more than 200 nucleotides which lack defined protein coding potential. Although they do not code for proteins, a large number of them are involved in regulating gene expression and translation. The presence of numerous lncRNAs in the human genome has prompted us to investigate the contribution of these molecules to human biology and medicine. In this review, we present the potential role of lncRNAs interlinked to different human diseases and genetic disorders. We also describe their role in cellular differentiation and aging and discuss their potential importance as biomarkers and as therapeutic agents.
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Affiliation(s)
- Sriyans Jain
- a Functional Genomics and Gene Silencing Group , CSIR- Center for Cellular and Molecular Biology , Hyderabad , India
| | - Nirav Thakkar
- a Functional Genomics and Gene Silencing Group , CSIR- Center for Cellular and Molecular Biology , Hyderabad , India
| | - Jagamohan Chhatai
- a Functional Genomics and Gene Silencing Group , CSIR- Center for Cellular and Molecular Biology , Hyderabad , India
| | - Manika Pal Bhadra
- b Centre for Chemical Biology , Indian Institute for Chemical Technology , Hyderabad , India
| | - Utpal Bhadra
- a Functional Genomics and Gene Silencing Group , CSIR- Center for Cellular and Molecular Biology , Hyderabad , India
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32
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Reddy BS, Swathi V, Bhadra MP, Raju MK, Kunwar A. Tandem vinylcyclopropane ring opening/Prins cyclization for the synthesis of 2,3-disubstituted tetrahydropyrans. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.03.062] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Sarma P, Ramaiah MJ, Pal D, Bhadra U, Pal Bhadra M. A novel bisindole-PBD conjugate inhibits angiogenesis by regulating STAT3 and VEGF in breast cancer cells. Life Sci 2016; 151:264-276. [PMID: 26979778 DOI: 10.1016/j.lfs.2016.03.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 10/26/2015] [Revised: 03/01/2016] [Accepted: 03/11/2016] [Indexed: 02/08/2023]
Abstract
AIMS Breast cancer is highly resistant to chemotherapeutic approach and hence, alternative strategies have been developed to fight against this heterogeneous group of disease. In particular, many studies have demonstrated about various drugs for the treatment of breast cancer. In our study, we assessed the anti-angiogenenic activities of Bisindole-PBD (5b) in MCF-7 and MDA-MB-231 cell lines. MAIN METHODS In vitro Endothelial Cell (HUVEC) Tube Formation Assay was performed to show inhibitory role of 5b along with its role upon wound healing process in breast cancer cells in vitro. Semi-quantitative reverse transcription PCR (RT-PCR) was also done to examine the expression of VEGF in response to 5b in breast cancer cells and in HUVEC cells. siRNA transfection study explored STAT3 mediated VEGF transcription in breast cancer cells MCF-7 and MDA-MB-231. CAM assay was performed to see the role of 5b on vessel formation in chicken embryo. KEY FINDINGS From in vitro data we have demonstrated that 5b played a role in regulation of breast cancer cell proliferation by inhibiting angiogenesis. Test drug 5b suppressed the expression VEGF at both transcriptional and post transcriptional levels. Apart from this, there was significant down regulation in STAT3 level after drug treatment, which was found to be involved in the VEGF transcription. Metastasis related MMP-2 and MMP-9 expressions were also modulated by 5b. In vivo study by Chick Chorioallantoic Membrane (CAM) Assay also showed anti-angiogenesis role of the test drug which was consistent with the in vitro data. SIGNIFICANCE Altogether, our data demonstrated 5b as potent small molecule with anti-angiogenic activities.
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Affiliation(s)
- Pranjal Sarma
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India
| | - M Janaki Ramaiah
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India; School of Chemical & Biotechnology, SASTRA University, Tirumalaisamudram, Thanjavur 613401, India
| | - Dhananjaya Pal
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India
| | - Utpal Bhadra
- Functional Genomics and Gene Silencing Group, CSIR-Centre for Cellular and Molecular Biology, Hyderabad 500007, India
| | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India.
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34
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Kumbhare RM, Dadmal TL, Kumar D, Ramaiah MJ, Kota A, Chowdhury D, Appalanaidu K, Rao YK, Hyder S, Devi TA, Bhadra MP. Correction: Fluorinated thiazolidinols cause cell death in A549 lung cancer cells via PI3K/AKT/mTOR and MAPK/ERK signalling pathways. Med Chem Commun 2016. [DOI: 10.1039/c6md90027e] [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] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for “Fluorinated thiazolidinols cause cell death in A549 lung cancer cells via PI3K/AKT/mTOR and MAPK/ERK signalling pathways” by Ravindra M. Kumbhare et al., Med. Chem. Commun., 2016, DOI: 10.1039/c5md00603a.
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Affiliation(s)
| | - Tulshiram L. Dadmal
- Fluoroorganic Division
- Indian Institute of Chemical Technology
- Hyderabad
- India
- Government of Maharashtra's
| | - Dinesh Kumar
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - M. Janaki Ramaiah
- School of Chemical and Biotechnology
- Sastra University
- Thanjavur-613402
- India
| | - Anudeep Kota
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Debabrata Chowdhury
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - K. Appalanaidu
- Fluoroorganic Division
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Y. Khageswara Rao
- Fluoroorganic Division
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Sayyad Hyder
- Fluoroorganic Division
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - T. Anjana Devi
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Manika Pal Bhadra
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad
- India
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35
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Kumbhare RM, Dadmal TL, Kumar D, Ramaiah MJ, Kota A, Chowdhury D, Appalanaidu K, Rao YK, Hyder S, Devi TA, Bhadra MP. Fluorinated thiazolidinols cause cell death in A549 lung cancer cells via PI3K/AKT/mTOR and MAPK/ERK signalling pathways. Med Chem Commun 2016. [DOI: 10.1039/c5md00603a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorinated thiazolidinols cause A549 lung cancer cell death by acting via PI3K/Akt/mTOR and MEK/ERK pathways.
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Affiliation(s)
| | - Tulshiram L. Dadmal
- Fluoroorganic Division
- Indian Institute of Chemical Technology
- Hyderabad
- India
- Government of Maharashtra's
| | - Dinesh Kumar
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - M. Janaki Ramaiah
- School of Chemical and Biotechnology
- Sastra University
- Thanjavur-613402
- India
| | - Anudeep Kota
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Debabrata Chowdhury
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - K. Appalanaidu
- Fluoroorganic Division
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Y. Khageswara Rao
- Fluoroorganic Division
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Sayyad Hyder
- Fluoroorganic Division
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - T. Anjana Devi
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Manika Pal Bhadra
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad
- India
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Reddy TL, Krishnarao PS, Rao GK, Bhimireddy E, Venkateswarlu P, Mohapatra DK, Yadav JS, Bhadra U, Bhadra MP. Para amino benzoic acid-derived self-assembled biocompatible nanoparticles for efficient delivery of siRNA. Int J Nanomedicine 2015; 10:6411-23. [PMID: 26491299 PMCID: PMC4608593 DOI: 10.2147/ijn.s86238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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] [Indexed: 12/05/2022] Open
Abstract
A number of diseases can result from abnormal gene expression. One of the approaches for treating such diseases is gene therapy to inhibit expression of a particular gene in a specific cell population by RNA interference. Use of efficient delivery vehicles increases the safety and success of gene therapy. Here we report the development of functionalized biocompatible fluorescent nanoparticles from para amino benzoic acid nanoparticles for efficient delivery of short interfering RNA (siRNA). These nanoparticles were non-toxic and did not interfere with progression of the cell cycle. The intrinsic fluorescent nature of these nanoparticles allows easy tracking and an opportunity for diagnostic applications. Human Bcl-2 siRNA was complexed with these nanoparticles to inhibit expression in cells at both the transcriptional and translational levels. Our findings indicated high gene transfection efficiency. These biocompatible nanoparticles allow targeted delivery of siRNA, providing an efficient vehicle for gene delivery.
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Affiliation(s)
- Teegala Lakshminarayan Reddy
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India ; Academy of Scientific and Innovative Research, New Delhi, India
| | - P Sivarama Krishnarao
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Garikapati Koteswara Rao
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India ; Academy of Scientific and Innovative Research, New Delhi, India
| | - Eswar Bhimireddy
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - P Venkateswarlu
- Department of Chemistry, Sri Venkateswara University, Tirpupati, India
| | - Debendra K Mohapatra
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India ; Academy of Scientific and Innovative Research, New Delhi, India
| | - J S Yadav
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Utpal Bhadra
- Functional Genomics and Gene Silencing Group, CSIR-Indian Institute of Chemical Technology, CSIR-Centre for Cellular and Molecular Biology, Hyderabad, India
| | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India ; Academy of Scientific and Innovative Research, New Delhi, India
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Bhadra U, Mondal T, Bag I, Mukhopadhyay D, Das P, Parida BB, Mainkar PS, Reddy CR, Bhadra MP. HDAC inhibitor misprocesses bantam oncomiRNA, but stimulates hid induced apoptotic pathway. Sci Rep 2015; 5:14747. [PMID: 26442596 PMCID: PMC4595805 DOI: 10.1038/srep14747] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 09/04/2015] [Indexed: 02/08/2023] Open
Abstract
Apoptosis or programmed cell death is critical for embryogenesis and tissue homeostasis. Uncontrolled apoptosis leads to different human disorders including immunodeficiency, autoimmune disorder and cancer. Several small molecules that control apoptosis have been identified. Here, we have shown the functional role of triazole derivative (DCPTN-PT) that acts as a potent HDAC inhibitor and mis-express proto onco microRNA (miRNA) bantam. To further understanding the mechanism of action of the molecule in apoptotic pathway, a series of experiments were also performed in Drosophila, a well known model organism in which the nature of human apoptosis is very analogous. DCPTN-PT mis processes bantam microRNA and alters its down regulatory target hid function and cleavage of Caspase-3 which in turn influence components of the mitochondrial apoptotic pathway in Drosophila. However regulatory microRNAs in other pro-apoptotic genes are not altered. Simultaneously, treatment of same molecule also affects the mitochondrial regulatory pathway in human tumour cell lines suggesting its conservative nature between fly and human. It is reasonable to propose that triazole derivative (DCPTN-PT) controls bantam oncomiRNA and increases hid induced apoptosis and is also able to influence mitochondrial apoptotic pathway.
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Affiliation(s)
- Utpal Bhadra
- Functional Genomics and Gene silencing group, CSIR-Centre for Cellular &Molecular Biology, Uppal Road, Hyderabad 500007, INDIA
| | - Tanmoy Mondal
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500 007, INDIA
| | - Indira Bag
- Functional Genomics and Gene silencing group, CSIR-Centre for Cellular &Molecular Biology, Uppal Road, Hyderabad 500007, INDIA
| | - Debasmita Mukhopadhyay
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500 007, INDIA
| | - Paromita Das
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500 007, INDIA
| | - Bibhuti B Parida
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500 007, INDIA
| | - Prathama S Mainkar
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500 007, INDIA
| | - Chada Raji Reddy
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500 007, INDIA
| | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500 007, INDIA
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Abstract
In a previous study we reported the role of potent bisindole-PBD conjugate as an inclusion in the arsenal of breast cancer therapeutics. In breast cancer cell proliferation, PI3K/AKT/mTOR pathway plays a crucial role by prosurvival mechanism that inhibits programmed cell death. Here, 2 breast cancer cells lines, MCF-7 and MDA-MB-231 were treated with Vorinostat (suberoylanilide hydroxamic acid / SAHA) and bisindole-PBD (5b). We have investigated the effect on PI3K/AKT/mTOR pathway and SIRT expression including epigenetic regulation. There was consistent decrease in the level of PI3K, AKT, mTOR proteins upon treatment of 5b in both MCF-7 and MDA-MB-231 cell lines compared to untreated controls. Treatment with caspase inhibitor (Q-VD-OPH) confirmed that the effect of 5b on PI3K signaling was ahead of apoptosis. Real time PCR and western blot analysis showed profound reduction in the mRNA and protein levels of SIRT1 and SIRT2. Molecular docking studies also supported the interaction of 5b with various amino acids of SIRT2 proteins. Treatment with 5b caused epigenetic changes that include increase of acetylated forms of p53, increase of histone acetylation at p21 promoter as well as decrease in methylation state of p21 gene. Compound 5b thus acts as SIRT inhibitor and cause p53 activation via inhibition of growth factor signaling and activation of p53 dependent apoptotic signaling. This present study focuses bisindole-PBD on epigenetic alteration putting 5b as a promising therapeutic tool in the realm of breast cancer research.
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Affiliation(s)
- Pranjal Sarma
- a Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology ; Tarnaka, Hyderabad , India
| | - Indira Bag
- a Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology ; Tarnaka, Hyderabad , India.,b Functional Genomics and Gene Silencing Group; CSIR-Center for Cellular and Molecular Biology ; Hyderabad , India
| | - M Janaki Ramaiah
- a Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology ; Tarnaka, Hyderabad , India.,c School of Chemical & Biotechnology; SASTRA University ; Tirumalaisamudram, Thanjavur , India
| | - Ahmed Kamal
- d Medicinal Chemistry and Pharmacology; CSIR-Indian Institute of Chemical Technology ; Tarnaka, Hyderabad , India
| | - Utpal Bhadra
- b Functional Genomics and Gene Silencing Group; CSIR-Center for Cellular and Molecular Biology ; Hyderabad , India
| | - Manika Pal Bhadra
- a Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology ; Tarnaka, Hyderabad , India
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Padmaja P, Koteswara Rao G, Indrasena A, Subba Reddy BV, Patel N, Shaik AB, Reddy N, Dubey PK, Bhadra MP. Synthesis and biological evaluation of novel pyrano[3,2-c]carbazole derivatives as anti-tumor agents inducing apoptosis via tubulin polymerization inhibition. Org Biomol Chem 2015; 13:1404-14. [DOI: 10.1039/c4ob02015d] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A series of novel pyrano[3,2-c]carbazole derivatives have been synthesized and antiproliferative activity of the derivatives were investigated on various cancer cell lines.
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Affiliation(s)
- Pannala Padmaja
- Department of Chemistry
- JNTUH College of Engineering
- Hyderabad (T.S)
- India
| | | | | | | | - Nibedita Patel
- CSIR – Indian Institute of Chemical Technology
- Hyderabad
- India
| | | | - Narayana Reddy
- Department of Chemistry
- Gitam School of Technology
- Gitam University
- Hyderabad (T.S)
- India
| | - Pramod K. Dubey
- Department of Chemistry
- JNTUH College of Engineering
- Hyderabad (T.S)
- India
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Subba Reddy BV, Gopal Reddy S, Durgaprasad M, Bhadra MP, Sridhar B. Domino Prins/pinacol reaction for the stereoselective synthesis of spiro[pyran-4,4′-quinoline]-2′,3′-dione derivatives. Org Biomol Chem 2015; 13:8729-33. [DOI: 10.1039/c5ob01077b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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
A novel series of spiro[pyran-4,4′-quinoline]-2′,3′-dione derivatives have been synthesized in good yields with excellent diastereoselectivity through a cascade of Prins/pinacol reactions.
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Affiliation(s)
- B. V. Subba Reddy
- Natural Product Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - S. Gopal Reddy
- Natural Product Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
- Centre for Chemical Biology
| | - M. Durgaprasad
- Natural Product Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Manika Pal Bhadra
- Centre for Chemical Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - B. Sridhar
- Laboratory of X-ray Crystallography
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
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Reddy BVS, Swathi V, Swain M, Bhadra MP, Sridhar B, Satyanarayana D, Jagadeesh B. Stereoselective synthesis of spiro[tetrahydropyran-3,3'-oxindole] derivatives employing Prins cascade strategy. Org Lett 2014; 16:6267-9. [PMID: 25485939 DOI: 10.1021/ol503089m] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A variety of aldehydes undergo smooth coupling with 4-hydroxy-N-methyl-2-methylene-N-phenylbutanamide in the presence of BF3·OEt2 under ambient conditions to produce the corresponding spiro-oxindole derivatives in good yields with excellent selectivity. It is an entirely new strategy to construct the spirocycles in a one-pot operation through a Prins cascade process.
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Affiliation(s)
- B V Subba Reddy
- Natural Product Chemistry, ‡Centre for Chemical Biology, §Laboratory of Crystallography, and ⊥Centre for Nuclear Magnetic Resonance and Structural Chemistry, CSIR-Indian Institute of Chemical Technology , Tarnaka, Hyderabad 500 607, India
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Janaki Ramaiah M, Lavanya A, Honarpisheh M, Zarea M, Bhadra U, Bhadra MP. MiR-15/16 complex targets p70S6 kinase 1 and controls cell proliferation in MDA-MB-231 breast cancer cells. Gene 2014; 552:255-64. [PMID: 25261849 DOI: 10.1016/j.gene.2014.09.052] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 09/18/2014] [Accepted: 09/22/2014] [Indexed: 12/14/2022]
Abstract
BACKGROUND MicroRNAs are small non-coding RNAs that regulate post-transcriptional mRNA expression by binding to 3' untranslated region (3'-UTR) of the complementary mRNA sequence resulting in translational repression and gene silencing. They act as negative regulators of gene expression and play a pivotal role in regulating apoptosis and cell proliferation. Studies have shown that miRNAs interact with p53 by regulating the activity and function of p53 through direct repression or its regulators. Mammalian target of rapamycin (mTOR) is an evolutionary conserved check point protein kinase that plays a major effect in the control of cell division via protein synthesis regulation. mTOR regulates protein synthesis through phosphorylation and inactivation of 4E-BP1 and through phosphorylation and activation of S6 kinase 1 (S6K1). These two downstream effectors of mTOR control cell growth and metabolism. In mammals, mTOR protein kinase is the central node in the nutrient and growth factor signaling and p53 plays a critical role in sensing genotoxic stress. Activation of p53 inhibits mTOR activity, which in turn regulates its downstream targets providing a cross talk among both the signaling machinery. MicroRNA-15 and 16 belong to a common precursor family and are highly conserved. Deletion or downregulation of these two microRNAs has been shown to accelerate cell division by modulating the expression of the genes involved in controlling cell cycle progression. These microRNAs may function as tumor suppressors and act on the downstream targets of p53 signaling pathway. To have a better insight of the role of miR-15/16 in regulating the cross talk of p53 and mTOR, we performed an in depth study in MDA-MB-231 breast cancer cells by performing a gain-of-function analysis with lentiviral plasmids expressing microRNA-15 and 16. METHODS The effect of individual microRNAs on RPS6KB1 was examined by using 3'-UTR clones via luciferase based assays. The cell cycle effects were observed by flow-cytometric analysis. Reverse transcription PCR was used to explore the expression of mTOR and RPS6KB1 in cells transfected with miR-15/16. RESULTS Overexpression of miR-15/16 led to inhibition of cell proliferation causing G1 cell cycle arrest as well as caspase-3 dependent apoptosis. Forced expression of miR-15/16 might lead to decrease in mRNA level of RPS6KB1, mTOR. The effect was a complete reversal after treatment with anti-miRs against miR-15/16 proving the specificity of the expression. In addition, the dual luciferase reporter assays indicated a clear decrease in luciferase gene expression in cells transfected with lentiviral based miR-15 and 16 plasmids indicating that miR-15/16 directly targets RPS6KB1 through its 3'-UTR binding. Further, these microRNAs also inhibit epithelial to mesenchymal transition (EMT) by targeting key proteins such as Twist1 and EZH2 clearly demonstrating its crucial role in controlling cell proliferation. CONCLUSION This study suggests that exogenous microRNA-15/16 can target RPS6KB1, control cell proliferation and cause apoptosis in caspase-dependent manner even in the absence of functional p53.
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Affiliation(s)
- M Janaki Ramaiah
- Centre for Chemical Biology, Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, India; School of Chemical and Biotechnology, SASTRA University, Tirumalaisamudram, Thanjavur, India.
| | - A Lavanya
- Centre for Chemical Biology, Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, India.
| | - Mohsen Honarpisheh
- Centre for Chemical Biology, Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, India.
| | - Mojtaba Zarea
- Centre for Chemical Biology, Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, India.
| | - Utpal Bhadra
- Centre For Cellular and Molecular Biology (CCMB), Uppal Road, Hyderabad, India.
| | - Manika Pal Bhadra
- Centre for Chemical Biology, Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, India.
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Reddy BS, Reddy SG, Reddy MR, Sridhar B, Bhadra MP. Aminol initiated Prins cyclization for the synthesis of octahydro-1H-pyrano [3,4-c]pyridine and hexahydro-1H-furo[3,4-c]pyrrole derivatives. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.06.109] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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44
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Subba Reddy BV, Gopal Reddy S, Ramana Reddy M, Pal Bhadra M, Sarma AVS. Tandem Prins/pinacol reaction for the synthesis of oxaspiro[4.5]decan-1-one scaffolds. Org Biomol Chem 2014; 12:7257-60. [DOI: 10.1039/c4ob01188k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sarma P, Ramaiah MJ, Kamal A, Bhadra U, Bhadra MP. A novel bisindole-PBD conjugate causes DNA damage induced apoptosis via inhibition of DNA repair pathway. Cancer Biol Ther 2014; 15:1320-32. [PMID: 25010292 DOI: 10.4161/cbt.29705] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
DNA damage response (DDR) that includes cell cycle check points, DNA repair, apoptosis, and senescence is intimately linked with cancer. It shields an organism against cancer development when genomic integrity fails. DNA repair pathways protect the cells from tumor progression caused as a result of DNA damage induced by irradiation or due to chemotherapeutic treatment. Many promising anticancer agents have been identified that target specific DNA repair pathways in response to DNA damage thereby leading to apoptosis. Here we identified a novel bisindole-PBD conjugate that possess potent anticancer activity in breast cancer cells. Further studies aimed at understanding the mechanism of action of the molecule showed its role in DNA damage induced apoptosis via inhibition of DNA repair pathway. Trypan blue and BrdU assay exhibited a dose-dependent effect. Single-stranded DNA damage was observed by COMET assay. In addition DNA damage induced ROS generation with simultaneous activation of ATM and ATR upon compound treatment was observed. Further downregulation of Bcl-XL and activation of Bax showed DNA damage induced apoptosis in MCF-7 and MDAMB-231 cells. In conclusion, it can be summarized that bisindole-PBD conjugate induces DNA damage in a dose dependent (2, 4, and 8 μM) manner by inhibiting the DNA repair genes.
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Affiliation(s)
- Pranjal Sarma
- 1 Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Tarnaka, Hyderabad, India; Functional Genomics and Gene Silencing Group; Centre for Cellular and Molecular Biology; Hyderabad, India
| | - M Janaki Ramaiah
- 1 Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Tarnaka, Hyderabad, India
| | - Ahmed Kamal
- Medicinal Chemistry and Pharmacology; CSIR-Indian Institute of Chemical Technology; Tarnaka, Hyderabad, India
| | - Utpal Bhadra
- Functional Genomics and Gene Silencing Group; Centre for Cellular and Molecular Biology; Hyderabad, India
| | - Manika Pal Bhadra
- 1 Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Tarnaka, Hyderabad, India
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Padiya R, Chowdhury D, Borkar R, Srinivas R, Pal Bhadra M, Banerjee SK. Garlic attenuates cardiac oxidative stress via activation of PI3K/AKT/Nrf2-Keap1 pathway in fructose-fed diabetic rat. PLoS One 2014; 9:e94228. [PMID: 24796753 PMCID: PMC4010400 DOI: 10.1371/journal.pone.0094228] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 03/11/2014] [Indexed: 12/16/2022] Open
Abstract
Background Cardiovascular complication due to diabetes has remained a major cause of death. There is an urgent need to intervene the cardiac complications in diabetes by nutritional or pharmacological agents. Thus the present study was designed to find out the effectiveness of garlic on cardiac complications in insulin-resistant diabetic rats. Methods and Results SD rats were fed high fructose (65%) diet alone or along with raw garlic homogenate (250 mg/kg/day) or nutrient-matched (65% corn starch) control diet for 8 weeks. Fructose-fed diabetic rats showed cardiac hypertrophy, increased NFkB activity and increased oxidative stress. Administration of garlic significantly decreased (p<0.05) cardiac hypertrophy, NFkB activity and oxidative stress. Although we did not observe any changes in myocardial catalase, GSH and GPx in diabetic heart, garlic administration showed significant (p<0.05) increase in all three antioxidant/enzymes levels. Increased endogenous antioxidant enzymes and gene expression in garlic treated diabetic heart are associated with higher protein expression of Nrf2. Increased myocardial H2S levels, activation of PI3K/Akt pathway and decreased Keap levels in fructose-fed heart after garlic administration might be responsible for higher Nrf2 levels. Conclusion Our study demonstrates that raw garlic homogenate is effective in reducing cardiac hypertrophy and fructose-induced myocardial oxidative stress through PI3K/AKT/Nrf2-Keap1 dependent pathway.
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Affiliation(s)
- Raju Padiya
- Division of Medicinal Chemistry and Pharmacology, Indian Institute of Chemical Technology, Hyderabad, India
| | - Debabrata Chowdhury
- Division of Chemical Biology, Indian Institute of Chemical Technology, Hyderabad, India
| | - Roshan Borkar
- National Centre for Mass Spectrometry, Indian Institute of Chemical Technology, Hyderabad, India
| | - R. Srinivas
- National Centre for Mass Spectrometry, Indian Institute of Chemical Technology, Hyderabad, India
| | - Manika Pal Bhadra
- Division of Chemical Biology, Indian Institute of Chemical Technology, Hyderabad, India
| | - Sanjay K. Banerjee
- Division of Medicinal Chemistry and Pharmacology, Indian Institute of Chemical Technology, Hyderabad, India
- * E-mail:
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Mukherjee S, Chowdhury D, Kotcherlakota R, Patra S, B V, Bhadra MP, Sreedhar B, Patra CR. Potential theranostics application of bio-synthesized silver nanoparticles (4-in-1 system). Theranostics 2014; 4:316-35. [PMID: 24505239 PMCID: PMC3915094 DOI: 10.7150/thno.7819] [Citation(s) in RCA: 275] [Impact Index Per Article: 27.5] [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: 10/04/2013] [Accepted: 12/16/2013] [Indexed: 12/22/2022] Open
Abstract
In this report, we have designed a simple and efficient green chemistry approach for the synthesis of colloidal silver nanoparticles (b-AgNPs) that is formed by the reduction of silver nitrate (AgNO3) solution using Olax scandens leaf extract. The colloidal b-AgNPs, characterized by various physico-chemical techniques exhibit multifunctional biological activities (4-in-1 system). Firstly, bio-synthesized silver nanoparticles (b-AgNPs) shows enhanced antibacterial activity compared to chemically synthesize silver nanoparticles (c-AgNPs). Secondly, b-AgNPs show anti-cancer activities to different cancer cells (A549: human lung cancer cell lines, B16: mouse melanoma cell line & MCF7: human breast cancer cells) (anti-cancer). Thirdly, these nanoparticles are biocompatible to rat cardiomyoblast normal cell line (H9C2), human umbilical vein endothelial cells (HUVEC) and Chinese hamster ovary cells (CHO) which indicates the future application of b-AgNPs as drug delivery vehicle. Finally, the bio-synthesized AgNPs show bright red fluorescence inside the cells that could be utilized to detect the localization of drug molecules inside the cancer cells (a diagnostic approach). All results together demonstrate the multifunctional biological activities of bio-synthesized AgNPs (4-in-1 system) that could be applied as (i) anti-bacterial & (ii) anti-cancer agent, (iii) drug delivery vehicle, and (iv) imaging facilitator. To the best of our knowledge, there is not a single report of biosynthesized AgNPs that demonstrates the versatile applications (4-in-1 system) towards various biomedical applications. Additionally, a plausible mechanistic approach has been explored for the synthesis of b-AgNPs and its anti-bacterial as well as anti-cancer activity. We strongly believe that bio-synthesized AgNPs will open a new direction towards various biomedical applications in near future.
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Affiliation(s)
- Sudip Mukherjee
- 1. Biomaterials Group, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Debabrata Chowdhury
- 2. Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Rajesh Kotcherlakota
- 1. Biomaterials Group, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Sujata Patra
- 1. Biomaterials Group, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Vinothkumar B
- 1. Biomaterials Group, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Manika Pal Bhadra
- 2. Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Bojja Sreedhar
- 3. Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Chitta Ranjan Patra
- 1. Biomaterials Group, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
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Mohapatra DK, Reddy DS, Ramaiah MJ, Ghosh S, Pothula V, Lunavath S, Thomas S, Valli SNCVLP, Bhadra MP, Yadav JS. Rugulactone derivatives act as inhibitors of NF-κB activation and modulates the transcription of NF-κB dependent genes in MDA-MB-231cells. Bioorg Med Chem Lett 2014; 24:1389-96. [PMID: 24508135 DOI: 10.1016/j.bmcl.2014.01.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [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: 09/15/2013] [Revised: 12/20/2013] [Accepted: 01/11/2014] [Indexed: 02/06/2023]
Abstract
Rugulactone and its analogues were synthesized following Horners-Wadsworth-Emmons and ring-closing metathesis as the key reactions. A library of new rugulactone analogues were designed, synthesized and evaluated for their anticancer activity in breast cancer cells. All analogues have shown anti-proliferative activity, while some of them exhibited significant cytotoxicity. In assays related to cell-cycle distribution, these conjugates induced G1 cell-cycle arrest in MDA-MB-231 cells. The cell cycle arrest nature was further confirmed by examining the effect on Cyclin E and Cdk2 proteins that acts at G1-S phase transition. Immunocytochemistry assay revealed that these compounds inhibited nuclear translocation of NF-κB protein, thereby activation of NF-κB was inhibited. The expression of NF-κB target genes such as Cyclin D1 and Bcl-xL were severely affected. Apart from acting on NF-κB, these compounds also regulate class I Histone deacetylase proteins such as (HDAC-3 and 8) that have a crucial and regulatory role in cell-proliferation. Simultaneously, the apoptotic inducing nature of these compounds was confirmed by activation of PARP protein, a protein that plays a key role in DNA damage and repair pathways. Among all compounds of this series 3g is the most potent compound and can be used for further studies.
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Affiliation(s)
- Debendra K Mohapatra
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.
| | - D Sai Reddy
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - M Janaki Ramaiah
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Sowjanya Ghosh
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Vikram Pothula
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Swetha Lunavath
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Shine Thomas
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - S N C V L Pushpa Valli
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Manika Pal Bhadra
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Jhillu S Yadav
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.
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Kumbhare RM, Dadmal TL, Devi TA, Kumar D, Kosurkar UB, Chowdhury D, Appalanaidu K, Rao YK, Ramaiah MJ, Bhadra MP. Isoxazole derivatives of 6-fluoro-N-(6-methoxybenzo[d]thiazol-2-yl)benzo[d]thiazol-2-amine and N-(pyrimidin-2-yl)benzo[d]thiazol-2-amine: regulation of cell cycle and apoptosis by p53 activation via mitochondrial-dependent pathways. Med Chem Commun 2014. [DOI: 10.1039/c4md00279b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The compounds depicted were shown to induce DNA damage and activate p53, which in turn activates Bax and decreases Bcl2 levels. This resulted in apoptosis in Colo205 cells.
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Affiliation(s)
| | - Tulshiram L. Dadmal
- Fluoroorganic Division
- Indian Institute of Chemical Technology
- Hyderabad, India
| | - T. Anjana Devi
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad, India
| | - Dinesh Kumar
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad, India
| | - Umesh B. Kosurkar
- Fluoroorganic Division
- Indian Institute of Chemical Technology
- Hyderabad, India
| | - Debabrata Chowdhury
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad, India
| | - K. Appalanaidu
- Fluoroorganic Division
- Indian Institute of Chemical Technology
- Hyderabad, India
| | - Y. Khageswara Rao
- Fluoroorganic Division
- Indian Institute of Chemical Technology
- Hyderabad, India
| | - M. Janaki Ramaiah
- School of Chemical and Biotechnology
- Sastra University
- Thanjavur-613401, India
| | - Manika Pal Bhadra
- Centre for Chemical Biology
- Indian Institute of Chemical Technology
- Hyderabad, India
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50
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Chowdhury D, Tangutur AD, Khatua TN, Saxena P, Banerjee SK, Bhadra MP. A proteomic view of isoproterenol induced cardiac hypertrophy: prohibitin identified as a potential biomarker in rats. J Transl Med 2013; 11:130. [PMID: 23706090 PMCID: PMC3667141 DOI: 10.1186/1479-5876-11-130] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Accepted: 05/01/2013] [Indexed: 01/15/2023] Open
Abstract
Background The present study aimed at using a proteomics based approach to: a) analyze and contrast the proteome of the healthy and isoproterenol induced hypertrophied hearts and b) identify potential biomarkers for diagnosis of cardiac hypertrophy. Methods Male Sprague Dawley (SD) rats were administered isoproterenol (ISO, 5 mg/kg, sc, once daily) for 14 days to induce cardiac hypertrophy. There was a significant (p<0.05) increase (~ 55%) in the heart weight to tail length ratio after 14 days of treatment and cardiac hypertrophy was evidenced by significant increase of β-MHC and ANP, two indicative markers of cardiac hypertrophy, in the treated heart compared to that of control. Following confirmation of hypertrophy, 2DE of the tissue samples was done followed by MS/MS analysis of the protein spots to obtain a proteomic view for identification of novel biomarkers. Results Several important proteins were identified by proteomics analysis. They belong to the major functional categories such as cholesterol and protein metabolism, muscle contraction and development, transport, TCAcycle, ATP-biosynthesis, chaperone, signal transduction, DNA synthesis and ubiquitinisation. Careful examination of these protein spots by image analysis led to the successful identification of 7 differentially expressed proteins in the diseased sample. Further extension of this work for validation of differential expression of these proteins was also achieved by RTPCR and western blotting. Conclusions Our results demonstrate characteristic protein expression profile in control and hypertrophy condition in SD rats and also expand the existing knowledge on differentially expressed proteins in hypertrophy. The study signifies the importance of reduced expression of a novel protein such as Prohibitin (PHB) which may be associated with the cardiomyocytes growth and cardiac hypertrophy. However, further work is necessary to confirm the role of PHB in human heart and its potential role in diagnostic and therapeutic intervention in the clinic.
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Affiliation(s)
- Debabrata Chowdhury
- Centre for Chemical Biology, Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500607, India
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