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Sruthi KK, Natani S, Ummanni R. Tumor protein D52 (isoform 3) induces NF-κB - STAT3 mediated EMT driving neuroendocrine differentiation of prostate cancer cells. Int J Biochem Cell Biol 2024; 166:106493. [PMID: 37935328 DOI: 10.1016/j.biocel.2023.106493] [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: 08/01/2023] [Revised: 10/12/2023] [Accepted: 11/03/2023] [Indexed: 11/09/2023]
Abstract
In prostate cancer (PCa) patients, a proto-oncogene Tumor protein D52 (TPD52) is overexpressed, and it is involved in different cellular functions. In this study, we report that TPD52 expression is positively associated with the emergence of neuroendocrine PCa (NEPC). With overexpression of TPD52 in LNCaP cells, we found neuroendocrine differentiation (NED) of cells in in-vitro and distinct NED features confirmed by NE markers neuron-specific enolase (NSE) and chromogranin A (CHR-A). Further, we investigated the molecular mechanisms involved in TPD52 mediated NED of PCa cells. We found that TPD52 activates the NF- κB - STAT3 axis for the induction of NED in LNCaP cells. Indeed, inhibition of NF-κB - STAT3 attenuated the progression of NED in TPD52 positive LNCaP cells. Importantly, silencing of TPD52 expression or inhibition of NF-κB - STAT3 activity in a neuroendocrine cell line NCI-H660 showed a marked decrease in the expression of NSE and CHR-A, confirming the reversal of the NE properties. Notably, TPD52 overexpression in LNCaP cells induced expression of N-cadherin, Vimentin, ZEB1, and Snail1 indicating that TPD52 positively regulates epithelial to mesenchymal transition (EMT) of PCa cells towards NED. Moreover, silencing of Snail1 in TPD52 positive cells blocked the progression of NED and, in NCI-H660 cells reversed NE properties as expected. Of the few requirements of TPD52, activation of NF-κB - STAT3 is essential for promoting EMT compelling NED of LNCaP cells. Collectively, these results reveal that TPD52 is associated with the progression of NEPC and emphasizes the need for therapeutic targeting of TPD52 in PCa.
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Affiliation(s)
- K K Sruthi
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sirisha Natani
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Ramesh Ummanni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Khilar P, Sruthi KK, Parveen SMA, Natani S, Jadav SS, Ummanni R. AMPK targets a proto-oncogene TPD52 (isoform 3) expression and its interaction with LKB1 suppress AMPK-GSK3β signaling axis in prostate cancer. J Cell Commun Signal 2023; 17:957-974. [PMID: 37040029 PMCID: PMC10409946 DOI: 10.1007/s12079-023-00745-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 03/26/2023] [Indexed: 04/12/2023] Open
Abstract
Tumor protein D52 (TPD52) is a proto-oncogene overexpressed in prostate cancer (PCa) due to gene amplification and it is involved in the cancer progression of many cancers including PCa. However, the molecular mechanisms underlying the role of TPD52 in cancer progression are still under investigation. In this study, we report that the activation of AMP-activated protein kinase (AMPK) by AICAR (5-Aminoimidazole-4-carboxamide ribonucleotide) inhibited the LNCaP and VCaP cells growth by silencing TPD52 expression. Activation of AMPK inhibited the proliferation and migration of LNCaP and VCaP cells. Interestingly, AICAR treatment to LNCaP and VCaP cells led to the downregulation of TPD52 via activation of GSK3β by a decrease of inactive phosphorylation at Ser9. Moreover, in AICAR treated LNCaP cells, inhibition of GSK3β by LiCl attenuated downregulation of TPD52 indicating that AICAR acts via GSK3β. Furthermore, we found that TPD52 interacts with serine/threonine kinase 11 or Liver kinase B1 (LKB1) a known tumor suppressor and an upstream kinase for AMPK. The molecular modeling and MD simulations indicates that the interaction between TPD52 and LKB1 leads to inhibition of the kinase activity of LKB1 as its auto-phosphorylation sites were masked in the complex. Consequently, TPD52-LKB1 interaction may lead to inactivation of AMPK. Moreover, overexpression of TPD52 is found to be responsible for the reduction of pLKB1 (Ser428) and pAMPK (Thr172). Therefore, TPD52 may be playing its oncogenic role via suppressing the AMPK activation. Altogether, our results revealed a new mechanism of PCa progression in which TPD52 overexpression inhibits AMPK activation by interacting with LKB1. These results support that the use of AMPK activators and/or small molecules that could disrupt the TPD52-LKB1 interaction might be useful to suppress PCa cell growth. TPD52 interacts LKB1 and interfere with activation of AMPK in PCa cells.
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Affiliation(s)
- Priyanka Khilar
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - K K Sruthi
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sakkarai Mohamed Asha Parveen
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sirisha Natani
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Surender Singh Jadav
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ramesh Ummanni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Asha Parveen SM, Kami Reddy KR, Ummanni R. Dimethylarginine Dimethylaminohydrolase - 1 expression is increased under tBHP-induced oxidative stress regulates nitric oxide production in PCa cells attenuates mitochondrial ROS-mediated apoptosis. Nitric Oxide 2023; 138-139:70-84. [PMID: 37423418 DOI: 10.1016/j.niox.2023.07.002] [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: 04/21/2023] [Revised: 07/03/2023] [Accepted: 07/07/2023] [Indexed: 07/11/2023]
Abstract
Dimethylarginine dimethylaminohydrolase-1 (DDAH1) expression is frequently elevated in different cancers including prostate cancer (PCa) and enhances nitric oxide (NO) production in tumor cells by metabolising endogenous nitric oxide synthase (NOS) inhibitors. DDAH1 protects the PCa cells from cell death and promotes survival. In this study, we have investigated the cytoprotective role of DDAH1 and determined the mechanism of DDAH1 in protecting the cells in tumor microenvironment. Proteomic analysis of PCa cells with stable overexpression of DDAH1 has identified that oxidative stress-related activity is altered. Oxidative stress promotes cancer cell proliferation, survival and causes chemoresistance. A known inducer of oxidative stress, tert-Butyl Hydroperoxide (tBHP) treatment to PCa cells led to elevated DDAH1 level that is actively involved in protecting the PCa cells from oxidative stress induced cell damage. In PC3-DDAH1- cells, tBHP treatment led to higher mROS levels indicating that the loss of DDAH1 increases the oxidative stress and eventually leads to cell death. Under oxidative stress, nuclear Nrf2 controlled by SIRT1 positively regulates DDAH1 expression in PC3 cells. In PC3-DDAH1+ cells, tBHP induced DNA damage is well tolerated compared to wild-type cells while PC3-DDAH1- became sensitive to tBHP. In PC3 cells, tBHPexposure has increased the production of NO and GSH which may be acting as an antioxidant defence to overcome oxidative stress. Furthermore, in tBHP treated PCa cells, DDAH1 is controlling the expression of Bcl2, active PARP and caspase 3. Taken together, these results confirm that DDAH1 is involved in the antioxidant defence system and promotes cell survival.
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Affiliation(s)
- Sakkarai Mohamed Asha Parveen
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Karthik Reddy Kami Reddy
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Ramesh Ummanni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Natani S, Ramakrishna M, Nallavolu T, Ummanni R. MicroRNA-147b induces neuroendocrine differentiation of prostate cancer cells by targeting ribosomal protein RPS15A. Prostate 2023; 83:936-949. [PMID: 37069746 DOI: 10.1002/pros.24535] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 03/13/2023] [Indexed: 04/19/2023]
Abstract
BACKGROUND Prostate cancer (PCa) is the leading cause of cancer related deaths in men, often androgen deprivation therapy (ADT) leads to the progression of androgen independent PCa (AIPC) which further leads to Neuroendocrine PCa (NEPC). Identifying the molecular mechanisms which navigate the neuroendocrine differentiation (NED) of PCa cells is clinically relevant. It has been suggested that the micro RNAs (miRNAs) play an important role in the regulation of intrinsic mechanisms relevant to tumor progression, resistance as a result leads to poor prognosis. miR-147b has been transpiring as one of the deregulated miRNAs associated with the occurrence of multiple cancers. The present study has studied the role of miRNA-147b in inducing NEPC. METHODS To investigate the functional role of miR-147b in NEPC, we have expressed miRNA mimics or inhibitors in PCa cells and monitored the progression of NEPC along with PCa cell proliferation and survival. The molecular mechanism miRNA-147b follows was studied using western blot and reverse transcription polymerase chain analysis. miRNA target prediction using bioinformatics tools followed by target validation using luciferase reporter assays was performed. RESULTS In the present study, we found that miR-147b is highly expressed in AIPC cell lines in particular neuroendocrine cells NCI-H660 and NE-LNCaP derived from LNCaP. Mechanistic studies revealed that overexpression of miR-147b or miRNA mimics induced NED in LNCaP cells in in-vitro while its inhibitor reversed the NE features (increased NE markers and reduced prostate specific antigen) of PC3, NCI-H660 and NE-LNCaP cells. In addition, miR-147b reduced the proliferation rate of LNCaP cells via elevated p27kip1 and lowered cyclin D1 for promoting differentiation. In reporter assays, we have identified ribosomal protein S15A (RPS15A) is a direct target of miRNA-147b and RPS15A expression was negatively regulated by miR-147b in PCa cells. Furthermore, we also report that RPS15A is downregulated in NEPC cells and its expression is inversely correlated with NE markers. CONCLUSION Targeting the miR-147b - RPS15A axis may overcome the progression of NEPC and serve as a novel therapeutic target to attenuate NED progression of PCa.
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Affiliation(s)
- Sirisha Natani
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Maresha Ramakrishna
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Teja Nallavolu
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Ramesh Ummanni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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Parveen SMA, Natani S, Sruthi K K, Khilar P, Ummanni R. HIF-1α and Nrf2 regulates hypoxia induced overexpression of DDAH1 through promoter activation in prostate cancer. Int J Biochem Cell Biol 2022; 147:106232. [PMID: 35644470 DOI: 10.1016/j.biocel.2022.106232] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 05/17/2022] [Accepted: 05/23/2022] [Indexed: 11/28/2022]
Abstract
Dimethylarginine dimethylaminohydrolase-1 (DDAH1) is overexpressed in prostate cancer (PCa) and promotes PCa progression in in vivo through the ADMA-NO pathway by degrading nitric oxide synthase (NOS) inhibitors such as asymmetric dimethylarginine (ADMA) and monomethylamine arginine (L-NMMA). In this study, we investigated the molecular mechanism involved in the overexpression of DDAH1 in PCa and examined its potential role as a therapeutic target. We observed that DDAH1expression is elevated in PCa (PC3, LNCaP, and DU145) cell lines under hypoxia. ChIP and reporter assay results confirmed that DDAH1 expression is positively regulated by HIF-1α through directly binding to the hypoxia response elements (HRE) located within the promoter region between - 1242/- 1238 upstream of its transcription start site (TSS). Under hypoxia, HIF-1α is translocated into the nucleus and activates its target gene expression in PC3 cells. Interestingly, in the event of HIF-1α inhibition or siRNA-mediated knockdown, an alternative transcription factor Nrf2 promotes DDAH1 expression through antioxidant response elements (AREs) on its promoter. ChIP assay results showed that Nrf2 binds to AREs located between -1016 / -1008 bp from the TSS of DDAH1. Furthermore, knockdown of PCa therapeutic target HSP90, an essential co-factor for both HIF-1α and Nrf2 causes attenuation of hypoxia induced DDAH1 overexpression in PCa cells. These results demonstrate that hypoxia induced upregulation of DDAH1 expression is positively regulated by HIF-1α and Nrf2 in association with HSP90. Therefore, targeting tumor angiogenesis promoting DDAH1 along with standard androgen receptor (AR) targeted therapy may offer an effective strategy to prevent PCa progression.
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Affiliation(s)
- Sakkarai Mohamed Asha Parveen
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sirisha Natani
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sruthi K K
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Priyanka Khilar
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ramesh Ummanni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Natani S, Sruthi KK, Asha SM, Khilar P, Lakshmi PSV, Ummanni R. Activation of TGF-β - SMAD2 signaling by IL-6 drives neuroendocrine differentiation of prostate cancer through p38MAPK. Cell Signal 2022; 91:110240. [PMID: 34986386 DOI: 10.1016/j.cellsig.2021.110240] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [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: 10/22/2021] [Revised: 12/29/2021] [Accepted: 12/29/2021] [Indexed: 02/08/2023]
Abstract
Neuroendocrine prostate cancer (NEPC) is an aggressive, androgen independent PCa and it is detected in patients undergoing androgen deprivation therapy (ADT). Interleukin-6 (IL-6) is a pleiotropic cytokine elevated in PCa patients promotes neuroendocrine differentiation (NED). In this study, PCa cells were differentiated with IL-6 in in-vitro to identify novel targets or signaling pathways associated with emergence of NEPC on deprivation of androgens. From the results, we observed an activation of TGF-β signaling pathway is altered through multiple proteins in differentiated LNCaP cells. Hence, we investigated the role of TGF-β axis in PCa cells differentiation. LNCaP cells treated with IL-6 in androgens deprived media release excess TGF-β ligand and this as conditioned media added to cells stimulated NED of PCa cells. TGF-β released by IL-6 stimulated cells activate p38MAPK through SMAD2 thereby promote NED. Inhibition of TGF-βRI and TGF-βRII signaling activation in LNCaP cells treated with IL-6 did not reversed the NED of cells, possibly due to the reason that the inhibition of TGF-β axis is further activating p38MAPK through SMAD independent manner in PCa cells. However, siRNA mediated knock down or inhibition p38MAPK inactivated TGF-β - SMAD axis in differentiating cells and attenuated NED of LNCaP cells. This result suggests that p38MAPK is the central node for receiving IL-6 signals and promotes NED of LNCaP cells in androgens free media. Remarkably, downregulation or inhibition of p38MAPK in NCI-H660 reversed NED characteristics as well as markers along with inactivation of SMAD2 whereas no effect observed in WPMY-1 normal prostate cells. Taken together these findings unveil that p38MAPK and its upstream regulators are potential targets to overcome the progression of NED of PCa and develop novel therapeutic measures along ADT for effective treatment of PCa.
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Affiliation(s)
- Sirisha Natani
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - K K Sruthi
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sakkarai Mohamed Asha
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Priyanka Khilar
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pampana Sandhya Venkata Lakshmi
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ramesh Ummanni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Natani S, Dhople VM, Parveen A, Sruthi KK, Khilar P, Bhukya S, Ummanni R. AMPK/SIRT1 signaling through p38MAPK mediates Interleukin-6 induced neuroendocrine differentiation of LNCaP prostate cancer cells. Biochim Biophys Acta Mol Cell Res 2021; 1868:119085. [PMID: 34171447 DOI: 10.1016/j.bbamcr.2021.119085] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 06/15/2021] [Accepted: 06/17/2021] [Indexed: 12/29/2022]
Abstract
Neuroendocrine Prostate Cancer (NEPC) is an aggressive form of androgen independent prostate cancer (AIPC), correlated with therapeutic resistance. Interleukin (IL)-6 promotes proliferation and neuroendocrine differentiation (NED) of androgen dependent LNCaP cells. We treated LNCaP cells with IL-6 and observed for in vitro NED of cells and also expression of NE markers βIII tubulin, neuron-specific enolase (NSE) and chromogranin A (ChA). Here we investigated the proteins and/or pathways involved in NED of LNCaP cells induced by IL-6 and characterized their role in NED of PCa cells. We found that the altered proteins modulated AMPK signaling pathway in NE cells. Remarkably, IL-6 induces NED of LNCaP cells through activation of AMPK and SIRT1 and also both of these are co-regulated while playing a predominant role in NED of LNCaP cells. Of the few requirements of AMPK-SIRT1 activation, increased eNOS is essential for NED by elevating Nitric oxide (NO) levels. Pleiotropic effects of NO ultimately regulate p38MAPK in IL-6 induced NED. Hence, IL-6 induced AMPK-SIRT1 activation eventually transfers its activation signals through p38MAPK for advancing NED of LNCaP cells. Moreover, inactivation of p38MAPK with specific inhibitor (SB203580) attenuated IL-6 induced NED of LNCaP cells. Therefore, IL-6 promotes NED of PCa cells via AMPK/SIRT1/p38MAPK signaling. Finally, targeting AMPK-SIRT1 or p38MAPK in androgen independent PC3 cells with neuroendocrine features reversed their neuroendocrine characteristics. Taken together these novel findings reveal that targeting p38MAPK mitigated NED of PCa cells, and thus it can be a favorable target to overcome progression of NEPC.
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Affiliation(s)
- Sirisha Natani
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vishnu M Dhople
- Interfaculty Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Asha Parveen
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - K K Sruthi
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Priyanka Khilar
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Supriya Bhukya
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Ramesh Ummanni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Jun JJ, Duscharla D, Ummanni R, Hanson PR, Malhotra SV. Investigation on the Anticancer Activity of Symmetric and Unsymmetric Cyclic Sulfamides. ACS Med Chem Lett 2021; 12:202-210. [PMID: 33603966 DOI: 10.1021/acsmedchemlett.0c00460] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 01/08/2021] [Indexed: 12/20/2022] Open
Abstract
The sulfamide functional group has been extensively employed in organic synthesis to discover probes and drugs in various applications such as cancer, human immunodeficiency virus (HIV), virus, and diabetes. Herein, we describe the synthesis of 7-membered symmetric and unsymmetric sulfamide compounds and their biological evaluation through the National Cancer Institute (NCI) panel of 60 human tumor cell lines (NCI-60) and the mechanism of action study. The results of a study from the NCI-60 cell line exhibited that many synthesized cyclic sulfamide compounds inhibited breast cancer (MDA-MB-468). The mechanism of action study of a representative compound 18 showed the inhibition of proliferation and apoptosis in A549 lung cancer cells.
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Affiliation(s)
- Jaden Jungho Jun
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, National Institutes of Health (NIH) National Center of Excellence for Computational Drug Abuse Research, Drug Discovery Institute, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas 66045-7582, United States
| | - Divya Duscharla
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Ramesh Ummanni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Paul R. Hanson
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas 66045-7582, United States
| | - Sanjay V. Malhotra
- Department of Cell, Development and Cancer Biology, Oregon Health & Science University, Portland, Oregon 97201, United States
- Center for Experimental Therapeutics, Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon 97201, United States
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Ramprasad J, Kumar Sthalam V, Linga Murthy Thampunuri R, Bhukya S, Ummanni R, Balasubramanian S, Pabbaraja S. Synthesis and evaluation of a novel quinoline-triazole analogs for antitubercular properties via molecular hybridization approach. Bioorg Med Chem Lett 2019; 29:126671. [DOI: 10.1016/j.bmcl.2019.126671] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/19/2019] [Accepted: 09/04/2019] [Indexed: 12/18/2022]
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Pore SK, Ganguly A, Sau S, Godeshala S, Kanugula AK, Ummanni R, Kotamraju S, Banerjee R. N-end rule pathway inhibitor sensitizes cancer cells to antineoplastic agents by regulating XIAP and RAD21 protein expression. J Cell Biochem 2019; 121:804-815. [PMID: 31407360 DOI: 10.1002/jcb.29326] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 07/15/2019] [Indexed: 12/20/2022]
Abstract
Anticancer drugs exert their effects on cancer cells by deregulating many pathways linked to cell cycle, apoptosis, etc. but cancer cells gradually become resistive against anticancer drugs, thereby necessitating the development of newer generation anticancer molecules. N-end rule pathway has been shown to be involved in the degradation of many cell cycle and apoptosis-related proteins. However, the involvements of this pathway in cancer are not well established. Recently, we developed a non-peptide-based N-end rule pathway inhibitor, RF-C11 for type 1 and 2 recognition domains of E3 ubiquitin ligases. The inhibitor significantly increased the half-life of potential N-degrons leading to significant physiological changes in vivo. We hypothesized RF-C11 may be used to decipher the N-end rule pathway's role in cancer towards the development of anticancer therapeutics. In this study, we showed that RF-C11, barring noncancer cells, significantly sensitizes cancer cells towards different anticancer agents tested. We further find that the profound cellular sensitization to anticancer drugs was affected by (a) downregulation of X-linked inhibitor of apoptosis protein, an antiapoptotic protein and (b) by stabilization of RAD21, and thereby inhibiting metaphase to anaphase promotion. The study shows that RF-C11 or its analogs may be used as a novel additive in combination therapy against cancer.
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Affiliation(s)
- Subrata K Pore
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Life Science Division, Institute of Advanced Study in Science and Technology, Guwahati, Assam, India
| | - Anirban Ganguly
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Samaresh Sau
- Department of Pharmaceutical Sciences, Wayne State University, Detroit, Michigan
| | - Sudhakar Godeshala
- Department of Chemical Engineering, Arizona State University, Tempe, Arizona
| | - Anantha K Kanugula
- Department of Integrative Medical Sciences, Northeast Ohio Medical University (NEOMED), Rootstown, Ohio
| | - Ramesh Ummanni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Srigiridhar Kotamraju
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Rajkumar Banerjee
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
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Dasari C, Reddy KRK, Natani S, Murthy TRL, Bhukya S, Ummanni R. Tumor protein D52 (isoform 3) interacts with and promotes peroxidase activity of Peroxiredoxin 1 in prostate cancer cells implicated in cell growth and migration. Biochim Biophys Acta Mol Cell Res 2019; 1866:1298-1309. [PMID: 30981892 DOI: 10.1016/j.bbamcr.2019.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 12/20/2018] [Accepted: 01/06/2019] [Indexed: 12/20/2022]
Abstract
Tumor protein D52 (TPD52) is overexpressed in multiple cancers including prostate cancer due to gene amplification and investigations to understand its role in the pathophysiology of different cancers are continuing. GST pull-down assays and Tandem affinity purification of TPD52 as bait identified novel prey Peroxiredoxin 1 (PRDX1) in prostate cancer (PCa) cells. PRDX1 interaction with TPD52 was confirmed in immunoprecipitation and affinity interaction assays. Mapping of interaction domain indicated that PRDX1 interacts with C-terminal region of TPD52 containing PEST domain between 152 and 179 amino acids, a new binding region of TPD52. Here we show that TPD52 interaction with PRDX1 increased its peroxidase activity and ectopic expression of TPD52 induced dimerization of PRDX1 in PCa cells. Moreover, H2O2 exposure evoked the interaction between TPD52 and PRDX1 while depletion of both proteins led to the accumulation of H2O2 suggesting peroxidase activity is important to maintain oxidative capacity in PCa cells. We also observed that overexpression or downregulation of TPD52 and PRDX1 individually or together affecting PCa cells growth, survival, and migration. Altogether, our results show a novel interaction partner of TPD52 providing new insights of its functions and ascertain the role of TPD52-PRDX1 interaction in PCa progression.
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Affiliation(s)
- Chandrashekhar Dasari
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Karthik Reddy Kami Reddy
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Sirisha Natani
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - T R L Murthy
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Supriya Bhukya
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Ramesh Ummanni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India; Academy of Scientific & Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India.
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12
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Kami Reddy KR, Dasari C, Vandavasi S, Natani S, Supriya B, Jadav SS, Sai Ram N, Kumar JM, Ummanni R. Novel Cellularly Active Inhibitor Regresses DDAH1 Induced Prostate Tumor Growth by Restraining Tumor Angiogenesis through Targeting DDAH1/ADMA/NOS Pathway. ACS Comb Sci 2019; 21:241-256. [PMID: 30673277 DOI: 10.1021/acscombsci.8b00133] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Dimethylarginine dimethylaminohydrolase1 (DDAH1) inhibitors are important therapeutics by virtue of their ability to control nitric oxide (NO) production by elevating asymmetric dimethylarginine (ADMA) levels. In a screening campaign, we identified that DD1E5 (3-amino-6- tert-butyl-N-(1,3-thiazol-2-yl)-4-(trifluoromethyl)thieno[2,3- b]pyridine-2- carboxamide) inhibits the DDAH1 activity both in vitro and in cultured cells. Mechanistic studies found that DD1E5 is a competitive inhibitor (dissociation constant ( Ki) of 2.05 ± 0.15 μM). Enzyme kinetic assays showed time and concentration dependent inhibition of DDAH1 with DD1E5, which shows tight binding with an inactivation rate constant of 0.2756 ± 0.015 M-1 S-1. Treatment of cancer cells with DDAH1 inhibitors shows inhibition of cell proliferation and a subsequent decrease in NO production with ADMA accumulation. DD1E5 reversed the elevated VEGF, c-Myc, HIF-1α, and iNOS levels induced by exogenous DDAH1 overexpression in PCa cells. Moreover, DD1E5 significantly increased intracellular levels of ADMA and reduced NO production, suggesting its therapeutic potential for cancers in which DDAH1 is upregulated. In in vitro assays, DD1E5 abrogated the secretion of angiogenic factors (bFGF and IL-8) into conditional media, indicating its antiangiogenic potential. DD1E5 inhibited in vivo growth of xenograft tumors derived from PCa cells with DDAH1 overexpression, by reducing tumor endothelial content represented with low CD31 expression. VEGF, HIF-1α, and iNOS expression were reversed in DD1E5 treated tumors compared to respective control tumors. In this work, integrating multiple approaches shows DD1E5 is a promising tool for the study of methylarginine-mediated NO control and a potential therapeutic lead compound against pathological conditions with elevated NO production such as cancers and other diseases.
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Affiliation(s)
- Karthik Reddy Kami Reddy
- Applied Biology, Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Centre for Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Chandrashekhar Dasari
- Applied Biology, Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Centre for Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Shalini Vandavasi
- Applied Biology, Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Sirisha Natani
- Applied Biology, Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Centre for Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Bhukya Supriya
- Applied Biology, Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Surender Singh Jadav
- Applied Biology, Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - N. Sai Ram
- Centre for Cellular and Molecular Biology (CSIR-CCMB), Hyderabad, India
| | | | - Ramesh Ummanni
- Applied Biology, Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Centre for Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
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13
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Tükenmez H, Edström I, Kalsum S, Braian C, Ummanni R, Fick SB, Sundin C, Lerm M, Elofsson M, Larsson C. Corticosteroids protect infected cells against mycobacterial killing in vitro. Biochem Biophys Res Commun 2019; 511:117-121. [PMID: 30773257 DOI: 10.1016/j.bbrc.2019.02.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 02/04/2019] [Accepted: 02/08/2019] [Indexed: 12/23/2022]
Abstract
The effect of corticosteroids on human physiology is complex and their use in tuberculosis patients remains controversial. In a high-throughput screening approach designed to discover virulence inhibitors, several corticosteroids were found to prevent cytolysis of fibroblasts infected with mycobacteria. Further experiments with Mycobacterium tuberculosis showed anti-cytolytic activity in the 10 nM range, but no effect on bacterial growth or survival in the absence of host cells at 20 μM. The results from a panel of corticosteroids with various affinities to the glucocorticoid- and mineralocorticoid receptors indicate that the inhibition of cytolysis most likely is mediated through the glucocorticoid receptor. Using live-imaging of M. tuberculosis-infected human monocyte-derived macrophages, we also show that corticosteroids to some extent control intracellular bacteria. In vitro systems with reduced complexity are to further study and understand the interactions between bacterial infection, immune defense and cell signaling.
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Affiliation(s)
- Hasan Tükenmez
- Department of Molecular Biology, Umeå University, SE-901 87, Umeå, Sweden
| | - Isabel Edström
- Department of Molecular Biology, Umeå University, SE-901 87, Umeå, Sweden
| | - Sadaf Kalsum
- Department of Clinical and Experimental Medicine, Linköping University, SE-581 83, Linköping, Sweden
| | - Clara Braian
- Department of Clinical and Experimental Medicine, Linköping University, SE-581 83, Linköping, Sweden
| | - Ramesh Ummanni
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Tarnaka, Hyderabad, 500007, Telangana, India
| | - Stina Berglund Fick
- Chemical Biology Consortium Sweden (CBCS), Department of Chemistry, Umeå University, SE-901 87, Umeå, Sweden
| | - Charlotta Sundin
- Department of Chemistry, Umeå University, SE-901 87, Umeå, Sweden
| | - Maria Lerm
- Department of Clinical and Experimental Medicine, Linköping University, SE-581 83, Linköping, Sweden
| | - Mikael Elofsson
- Department of Chemistry, Umeå University, SE-901 87, Umeå, Sweden
| | - Christer Larsson
- Infectious Diseases Clinic, Umeå University Hospital, SE-901 85, Umeå, Sweden.
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14
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Reddy CR, Subbarao M, Vijaykumar J, Jadav SS, Sasane N, Valleti RR, Supriya B, Ummanni R. One-Pot Synthesis of Triazolo-Heterolignans: Biological Evaluation and Molecular Docking Studies as Tubulin Inhibitors. Anticancer Agents Med Chem 2018; 18:1702-1710. [PMID: 30019651 DOI: 10.2174/1871520618666180718104647] [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: 09/14/2017] [Revised: 02/27/2018] [Accepted: 03/01/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND The anti-mitotic activity of podophyllotoxin derivative targeting tubulin enzyme proved them as strong polymerization inhibitors. The introduction of heteroatom along with different heteroaryl systems in naturally obtained lignans created a latitude for design of bioactive components. A novel one-pot sequential propargylation/cycloaddition reaction strategy has been followed to synthesize triazolo-heterolignans. OBJECTIVE To screen anti-proliferative activity of novel heterolignans and to determine their mode of action. METHOD SRB assay, Cytotoxicity evaluation, PI uptake for analysis of cell cycle, caspase-3 activity, Western blot analysis and Immunofluorescence and molecular docking studies. RESULTS SRB assay of synthesised compounds were provided compound 3a and 5f to be highly active among the synthesized compounds. The Compound 3a showed cell cycle arrest at G2/M phase and 5f arrest the cells at G1 phase. Compound 5f displayed caspase 3 mediated apoptotic effect at lower levels. Compound 3a and 5f displayed microtubule disassembly inhibition same as paclitaxel and found to be occupying colchicine binding site of tubulin, both ligands were depicted π-cation interaction with Lys352 residue and triazole ring accommodated at the lactone binding site. CONCLUSION A novel one-pot sequential propargylation/cycloaddition reaction has been developed for the synthesis of triazolo-heterolignans. Compound 3a and 5f were displayed good cytotoxic activities and found to inhibit microtubule disassembly. The importance of triazole ring of heterolignans has been studied by molecular docking experiments and results were compared.
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Affiliation(s)
- Chada Raji Reddy
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Muppidi Subbarao
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Jonnalagadda Vijaykumar
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Surender Singh Jadav
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Nilesh Sasane
- National Institute of Pharmaceutical Education and Research, Hyderabad,500037, India
| | - Reddi Rani Valleti
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Bhukya Supriya
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Ramesh Ummanni
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
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15
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Duscharla D, Reddy Kami Reddy K, Dasari C, Bhukya S, Ummanni R. Interleukin-6 induced overexpression of valosin-containing protein (VCP)/p97 is associated with androgen-independent prostate cancer (AIPC) progression. J Cell Physiol 2018; 233:7148-7164. [PMID: 29693262 DOI: 10.1002/jcp.26639] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 03/30/2018] [Indexed: 12/21/2022]
Abstract
Though Androgen deprivation therapy (ADT) is effective initially, numerous patients become resistant to it and develop castration resistant PCa (CRPC). Cytokines promotes ligand independent activation of AR. Interleukin-6 (IL-6) levels are elevated in CRPC patients and regulate AR activity. However, progression to CRPC is not fully understood. In this study, we analyzed differential protein expression in LNCaP cells treated with IL-6 using proteomics. Results revealed altered expression of 27 proteins and Valosin-containing protein (VCP)/p97 plays a predominant role in co-regulation of altered proteins. Interestingly, IL-6 induced VCP expression through Pim-1 via STAT3 is AR independent there by suggesting a role for VCP in CRPC. Transfection of LNCaP cells for VCP overexpression showed an increased cell proliferation, migration, and invasion where as its inhibition by NMS-873 showed the reverse effect causing cell death. Mechanistic studies demonstrate that cell death occurs due to apoptosis by endoplasmic reticulum (ER) stress, elevated cell cycle inhibitors p21, p27kip1, and active PARP and reduced Bcl-2. VCP promotes cell invasion and migration by altering E-cadherin and Vimentin levels inversely triggering EMT of PCa cells. VCP immunostaining revealed no staining in BPH but strong staining in PCa. This study determines VCP may play an important role in progression to CRPC and it can be a favorable target with to develop new therapies to treat ADT resistant prostate cancer.
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Affiliation(s)
- Divya Duscharla
- Center for Chemical Biology, Indian Institute of Chemical Technology (IICT), Hyderabad, India.,Center for Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Karthik Reddy Kami Reddy
- Center for Chemical Biology, Indian Institute of Chemical Technology (IICT), Hyderabad, India.,Center for Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Chandrashekhar Dasari
- Center for Chemical Biology, Indian Institute of Chemical Technology (IICT), Hyderabad, India.,Center for Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Supriya Bhukya
- Center for Chemical Biology, Indian Institute of Chemical Technology (IICT), Hyderabad, India
| | - Ramesh Ummanni
- Center for Chemical Biology, Indian Institute of Chemical Technology (IICT), Hyderabad, India.,Center for Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
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16
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Reddy KRK, Dasari C, Duscharla D, Supriya B, Ram NS, Surekha MV, Kumar JM, Ummanni R. Dimethylarginine dimethylaminohydrolase-1 (DDAH1) is frequently upregulated in prostate cancer, and its overexpression conveys tumor growth and angiogenesis by metabolizing asymmetric dimethylarginine (ADMA). Angiogenesis 2017; 21:79-94. [DOI: 10.1007/s10456-017-9587-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 11/13/2017] [Indexed: 12/20/2022]
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17
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Siva B, Devi A, Venkanna A, Poornima B, Sukumar G, Reddy SD, Vijaya M, Ummanni R, Babu KS. “Click” reaction based synthesis of nimbolide derivatives and study of their insect antifeedant activity against Spodoptera litura Larvae. Fitoterapia 2017; 123:1-8. [DOI: 10.1016/j.fitote.2017.09.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 09/05/2017] [Accepted: 09/05/2017] [Indexed: 10/18/2022]
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18
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Rachakonda V, Kotapalli SS, Ummanni R, Alla M. Ring Functionalization and Molecular Hybridization of Quinolinyl Pyrazole: Design, Synthesis and Antimycobacterial Activity. ChemistrySelect 2017. [DOI: 10.1002/slct.201701241] [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: 12/18/2022]
Affiliation(s)
- Venkatesham Rachakonda
- Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
| | - Sudha Sravanti Kotapalli
- Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
| | - Ramesh Ummanni
- Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
| | - Manjula Alla
- Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology; Hyderabad 500 007 India
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19
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Sharma GVM, Kumar KS, Reddy SV, Nagalingam A, Cunningham KM, Ummanni R, Hugel H, Sharma D, Malhotra SV. Synthesis and Biological Evaluation of Triazole-Vanillin Molecular Hybrids as Anti-Cancer Agents. ACTA ACUST UNITED AC 2017. [DOI: 10.2174/1573407213666161128122552] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Gangavaram V. M. Sharma
- Organic and Biomolecular Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Kandikonda S. Kumar
- Organic and Biomolecular Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Sheri V. Reddy
- Organic and Biomolecular Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Arumugam Nagalingam
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD 21218, United States
| | - Kathleen M. Cunningham
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD 21218, United States
| | - Ramesh Ummanni
- Organic and Biomolecular Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Helmut Hugel
- School of Applied Sciences, RMIT University, GPO Box 2476V Melbourne, Victoria 3001, Australia
| | - Dipali Sharma
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD 21218, United States
| | - Sanjay V. Malhotra
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, Stanford University, Palo Alto, CA 94304, United States
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20
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Saha D, Singh A, Hussain T, Srivastava V, Sengupta S, Kar A, Dhapola P, Dhople V, Ummanni R, Chowdhury S. Epigenetic suppression of human telomerase ( hTERT) is mediated by the metastasis suppressor NME2 in a G-quadruplex-dependent fashion. J Biol Chem 2017; 292:15205-15215. [PMID: 28717007 PMCID: PMC5602382 DOI: 10.1074/jbc.m117.792077] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 07/17/2017] [Indexed: 12/11/2022] Open
Abstract
Transcriptional activation of the human telomerase reverse transcriptase (hTERT) gene, which remains repressed in adult somatic cells, is critical during tumorigenesis. Several transcription factors and the epigenetic state of the hTERT promoter are known to be important for tight control of hTERT in normal tissues, but the molecular mechanisms leading to hTERT reactivation in cancer are not well-understood. Surprisingly, here we found occupancy of the metastasis suppressor non-metastatic 2 (NME2) within the hTERT core promoter in HT1080 fibrosarcoma cells and HCT116 colon cancer cells and NME2-mediated transcriptional repression of hTERT in these cells. We also report that loss of NME2 results in up-regulated hTERT expression. Mechanistically, additional results indicated that the RE1-silencing transcription factor (REST)–lysine-specific histone demethylase 1 (LSD1) co-repressor complex associates with the hTERT promoter in an NME2-dependent way and that this assembly is required for maintaining repressive chromatin at the hTERT promoter. Interestingly, a G-quadruplex motif at the hTERT promoter was essential for occupancy of NME2 and the REST repressor complex on the hTERT promoter. In light of this mechanistic insight, we studied the effects of G-quadruplex–binding ligands on hTERT expression and observed that several of these ligands repressed hTERT expression. Together, our results support a mechanism of hTERT epigenetic control involving a G-quadruplex promoter motif, which potentially can be targeted by tailored small molecules.
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Affiliation(s)
- Dhurjhoti Saha
- From the Genomics and Molecular Medicine Unit.,Academy of Scientific & Innovative Research (AcSIR), CSIR-Institute of Genomics and Integrative Biology, Council of Scientific and Industrial Research (CSIR), Mathura Road, New Delhi 110025, India and
| | - Ankita Singh
- From the Genomics and Molecular Medicine Unit.,Academy of Scientific & Innovative Research (AcSIR), CSIR-Institute of Genomics and Integrative Biology, Council of Scientific and Industrial Research (CSIR), Mathura Road, New Delhi 110025, India and
| | | | | | | | - Anirban Kar
- From the Genomics and Molecular Medicine Unit
| | - Parashar Dhapola
- G.N.R. Knowledge Centre for Genome Informatics, and.,Academy of Scientific & Innovative Research (AcSIR), CSIR-Institute of Genomics and Integrative Biology, Council of Scientific and Industrial Research (CSIR), Mathura Road, New Delhi 110025, India and
| | - Vishnu Dhople
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Ramesh Ummanni
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Shantanu Chowdhury
- From the Genomics and Molecular Medicine Unit, .,G.N.R. Knowledge Centre for Genome Informatics, and.,Academy of Scientific & Innovative Research (AcSIR), CSIR-Institute of Genomics and Integrative Biology, Council of Scientific and Industrial Research (CSIR), Mathura Road, New Delhi 110025, India and
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21
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Dasari C, Yaghnam DP, Walther R, Ummanni R. Tumor protein D52 (isoform 3) contributes to prostate cancer cell growth via targeting nuclear factor-κB transactivation in LNCaP cells. Tumour Biol 2017; 39:1010428317698382. [PMID: 28466782 DOI: 10.1177/1010428317698382] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 01/08/2023] Open
Abstract
Our previous study showed that TPD52 overexpression could increase migration and proliferation of LNCaP cells contributing to the development of prostate cancer. However, mechanism of TPD52 in prostate cancer initiation and progression remains elusive. In this study, we investigated the possible underlying mechanism of TPD52 in prostate cancer progression. In LNCaP cells, TPD52 expression was altered by transfecting with either EGFP-TPD52 or specific short hairpin RNA. Overexpression of TPD52 protected LNCaP cells from apoptosis through elevated anti-apoptotic proteins XIAP, Bcl-2, and Cyclin D1, whereas Bax was downregulated. Mechanistically, we found that TPD52 confers transactivation of nuclear factor-κB, thereby enhancing its target gene expression in LNCaP cells. TPD52 promotes LNCaP cell invasion probably via increased matrix metalloproteinase 9 expression and its activity while tissue inhibitor of metalloproteinase expression is significantly downregulated. Notably, TPD52 might be involved in cell adhesion, promoting tumor metastasis by inducing loss of E-cadherin, expression of vimentin and vascular cell adhesion molecule, and additionally activation of focal adhesion kinase. Furthermore, TPD52 directly interacts with nuclear factor-κB p65 (RelA) and promotes accumulation of phosphorylated nuclear factor-κB (p65)S536 that is directly linked with nuclear factor-κB transactivation. Indeed, depletion of TPD52 or inhibition of nuclear factor-κB in TPD52-positive cells inhibited secretion of tumor-related cytokines and contributes to the activation of STAT3, nuclear factor-κB, and Akt. Interestingly, in TPD52 overexpressing LNCaP cells, nuclear factor-κB inhibition prevented the autocrine/paracrine activation of STAT3. TPD52 activates STAT3 through ascertaining a cross talk between the nuclear factor-κB and the STAT3 signaling systems. Collectively, these results reveal mechanism by which TPD52 is associated with prostate cancer progression and highlight the approach for therapeutic targeting of TPD52 in prostate cancer.
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Affiliation(s)
- Chandrashekhar Dasari
- 1 Center for Chemical Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India.,2 Centre for Academy of Scientific & Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Dattu Prasad Yaghnam
- 1 Center for Chemical Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Reinhard Walther
- 3 Department of Medical Biochemistry and Molecular Biology, Ernst Moritz Arndt University of Greifswald, Greifswald, Germany
| | - Ramesh Ummanni
- 1 Center for Chemical Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
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22
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Kotapalli SS, Dasari C, Duscharla D, Kami Reddy KR, Kasula M, Ummanni R. All-Trans-Retinoic Acid Stimulates Overexpression of Tumor Protein D52 (TPD52, Isoform 3) and Neuronal Differentiation of IMR-32 Cells. J Cell Biochem 2017; 118:4358-4369. [PMID: 28436114 DOI: 10.1002/jcb.26090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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: 03/02/2017] [Accepted: 04/21/2017] [Indexed: 11/06/2022]
Abstract
Tumor protein D52 (TPD52), a proto-oncogene is overexpressed in a variety of epithelial carcinomas and plays an important role in cell proliferation, migration, and cell death. In the present study we found that the treatment of IMR-32 neuroblastoma (NB) cells with retinoic acid (RA) stimulates an increase in expression of TPD52. TPD52 expression is detectable after 72 h, can be maintained till differentiation of NB cells suggesting that TPD52 is involved in differentiation. Here, we demonstrate that TPD52 is essential for RA to promote differentiation of NB cells. Our results show that exogenous expression of EGFP-TPD52 in IMR-32 cells resulted cell differentiation even without RA. RA by itself and with overexpression of TPD52 can increase the ability of NB cells differentiation. Interestingly, transfection of IMR-32 cells with a specific small hairpin RNA for efficient knockdown of TPD52 attenuated RA induced NB cells differentiation. Transcriptional and translational level expression of neurotropic (BDNF, NGF, Nestin) and differentiation (β III tubulin, NSE, TH) factors in NB cells with altered TPD52 expression and/or RA treatment confirmed essential function of TPD52 in cellular differentiation. Furthermore, we show that TPD52 protects cells from apoptosis and arrest cell proliferation by varying expression of p27Kip1, activation of Akt and ERK1/2 thus promoting cell differentiation. Additionally, inhibition of STAT3 activation by its specific inhibitor arrested NB cells differentiation by EGFP-TPD52 overexpression with or without RA. Taken together, our data reveal that TPD52 act through activation of JAK/STAT signaling pathway to undertake NB cells differentiation induced by RA. J. Cell. Biochem. 118: 4358-4369, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Sudha Sravanti Kotapalli
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Chandrashekhar Dasari
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India.,Centre for Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Divya Duscharla
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India.,Centre for Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Karthik Reddy Kami Reddy
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India.,Centre for Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Manjula Kasula
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Ramesh Ummanni
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India.,Centre for Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
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23
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Ramesh R, Shingare RD, Kumar V, Anand A, B S, Veeraraghavan S, Viswanadha S, Ummanni R, Gokhale R, Srinivasa Reddy D. Repurposing of a drug scaffold: Identification of novel sila analogues of rimonabant as potent antitubercular agents. Eur J Med Chem 2016; 122:723-730. [DOI: 10.1016/j.ejmech.2016.07.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 07/05/2016] [Accepted: 07/07/2016] [Indexed: 12/27/2022]
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24
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Singarapu KK, Ahuja A, Potula PR, Ummanni R. Solution Nuclear Magnetic Resonance Studies of Sterol Carrier Protein 2 Like 2 (SCP2L2) Reveal the Insecticide Specific Structural Characteristics of SCP2 Proteins in Aedes aegypti Mosquitoes. Biochemistry 2016; 55:4919-27. [DOI: 10.1021/acs.biochem.6b00322] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Kiran Kumar Singarapu
- Center for NMR and Structural Chemistry and §Center for Chemical
Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
| | - Ashish Ahuja
- Center for NMR and Structural Chemistry and §Center for Chemical
Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
| | - Purushotam Reddy Potula
- Center for NMR and Structural Chemistry and §Center for Chemical
Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
| | - Ramesh Ummanni
- Center for NMR and Structural Chemistry and §Center for Chemical
Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, India
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25
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Ramesh R, Shingare R, Anand A, Veeraraghavan S, Viswanadha S, Ummanni R, Gokhale R, Reddy D. Repurposing of old drugs: Identification of novel sila analogues of rimonabant as potent antitubercular agents. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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26
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Duscharla D, Bhumireddy SR, Lakshetti S, Pospisil H, Murthy PVLN, Walther R, Sripadi P, Ummanni R. Prostate Cancer Associated Lipid Signatures in Serum Studied by ESI-Tandem Mass Spectrometryas Potential New Biomarkers. PLoS One 2016; 11:e0150253. [PMID: 26958841 PMCID: PMC4784901 DOI: 10.1371/journal.pone.0150253] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 06/10/2015] [Accepted: 02/11/2016] [Indexed: 12/14/2022] Open
Abstract
Prostate cancer (PCa) is one amongst the most common cancersin western men. Incidence rate ofPCa is on the rise worldwide. The present study deals with theserum lipidome profiling of patients diagnosed with PCa to identify potential new biomarkers. We employed ESI-MS/MS and GC-MS for identification of significantly altered lipids in cancer patient’s serum compared to controls. Lipidomic data revealed 24 lipids are significantly altered in cancer patinet’s serum (n = 18) compared to normal (n = 18) with no history of PCa. By using hierarchical clustering and principal component analysis (PCA) we could clearly separate cancer patients from control group. Correlation and partition analysis along with Formal Concept Analysis (FCA) have identified that PC (39:6) and FA (22:3) could classify samples with higher certainty. Both the lipids, PC (39:6) and FA (22:3) could influence the cataloging of patients with 100% sensitivity (all 18 control samples are classified correctly) and 77.7% specificity (of 18 tumor samples 4 samples are misclassified) with p-value of 1.612×10−6 in Fischer’s exact test. Further, we performed GC-MS to denote fatty acids altered in PCa patients and found that alpha-linolenic acid (ALA) levels are altered in PCa. We also performed an in vitro proliferation assay to determine the effect of ALA in survival of classical human PCa cell lines LNCaP and PC3. We hereby report that the altered lipids PC (39:6) and FA (22:3) offer a new set of biomarkers in addition to the existing diagnostic tests that could significantly improve sensitivity and specificity in PCa diagnosis.
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Affiliation(s)
- Divya Duscharla
- Center for Chemical Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Centre for Academy of Scientific & Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Sudarshana Reddy Bhumireddy
- Centre for Academy of Scientific & Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- National Centre for Mass Spectrometry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Sridhar Lakshetti
- National Centre for Mass Spectrometry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Heike Pospisil
- High Performance Computing in Life Sciences, Technical University, Wildau, Germany
| | - P. V. L. N. Murthy
- Department of Urology, Nizam’s Institute of Medical Sciences (NIMS), Hyderabad, India
| | - Reinhard Walther
- Department of Medical Biochemistry and Molecular Biology, University of Greifswald, Greifswald, Germany
| | - Prabhakar Sripadi
- Centre for Academy of Scientific & Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- National Centre for Mass Spectrometry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Ramesh Ummanni
- Center for Chemical Biology, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- Centre for Academy of Scientific & Innovative Research, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
- * E-mail:
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27
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Nagarsenkar A, Prajapti SK, Guggilapu SD, Birineni S, Sravanti Kotapalli S, Ummanni R, Babu BN. Investigation of triazole-linked indole and oxindole glycoconjugates as potential anticancer agents: novel Akt/PKB signaling pathway inhibitors. Med Chem Commun 2016. [DOI: 10.1039/c5md00513b] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [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
Novel triazole-linked indole and oxindole glycoconjugates as inhibitors of the Akt/PKB signaling pathway.
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Affiliation(s)
- Atulya Nagarsenkar
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Hyderabad
- India
| | - Santosh Kumar Prajapti
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Hyderabad
- India
| | - Sravanthi Devi Guggilapu
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Hyderabad
- India
| | - Swetha Birineni
- Center for Chemical Biology
- Indian Institute of Chemical Technology (CSIR-IICT)
- Hyderabad 500007
- India
| | - Sudha Sravanti Kotapalli
- Center for Chemical Biology
- Indian Institute of Chemical Technology (CSIR-IICT)
- Hyderabad 500007
- India
| | - Ramesh Ummanni
- Center for Chemical Biology
- Indian Institute of Chemical Technology (CSIR-IICT)
- Hyderabad 500007
- India
| | - Bathini Nagendra Babu
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Hyderabad
- India
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28
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Srihari P, Padmabhavani B, Ramesh S, Bharath Kumar Y, Singh A, Ummanni R. PMA-SiO2 catalyzed synthesis of indolo[2,3-c]quinolines as potent anti cancer agents. Bioorg Med Chem Lett 2015; 25:2360-5. [DOI: 10.1016/j.bmcl.2015.04.018] [Citation(s) in RCA: 8] [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] [Received: 10/02/2014] [Revised: 03/30/2015] [Accepted: 04/06/2015] [Indexed: 11/27/2022]
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29
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Emmadi NR, Bingi C, Kotapalli SS, Ummanni R, Nanubolu JB, Atmakur K. Synthesis and evaluation of novel fluorinated pyrazolo-1,2,3-triazole hybrids as antimycobacterial agents. Bioorg Med Chem Lett 2015; 25:2918-22. [PMID: 26048808 DOI: 10.1016/j.bmcl.2015.05.044] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [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: 04/16/2015] [Revised: 05/18/2015] [Accepted: 05/20/2015] [Indexed: 12/20/2022]
Abstract
A library of novel 3-trifluoromethyl pyrazolo-1,2,3-triazole hybrids (5-7) were accomplished starting from 5-phenyl-3-(trifluoromethyl)-1H-pyrazol-4-amine (1) via key intermediate 2-azido-N-(5-phenyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)acetamide (3) through click chemistry approach. Thus obtained compounds in 5-7 series were evaluated for in vitro antimycobacterial activity against Mycobacterium smegmatis (MC(2) 155) and also verified the cytotoxicity. These studies engendered promising lead compounds 5q, 7b and 7c with MIC (μg/mL) values 15.34, 16.18 and 16.60, respectively. Amongst these three compounds, 2-(4-(4-methoxybenzoyl)-1H-1,2,3-triazol-1-yl)-N-(5-phenyl-3-(trifluoromethyl)-1H-pyrazol-4-yl) acetamide (5q) emerged as the most promising antitubercular agent with lowest cytotoxicity against the A549 cancer cell line. This is the first report to demonstrate the pyrazolo triazole hybrids as potential antimycobacterial agents.
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Affiliation(s)
- Narender Reddy Emmadi
- Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Chiranjeevi Bingi
- Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Sudha Sravanti Kotapalli
- Chemical Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Ramesh Ummanni
- Chemical Biology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Jagadeesh Babu Nanubolu
- Centre for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Krishnaiah Atmakur
- Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Academy of Scientific and Innovative Research, CSIR- Indian Institute of Chemical Technology, Hyderabad 500007, India.
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30
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Ummanni R, Duscharla D, Barett C, Venz S, Schlomm T, Heinzer H, Walther R, Bokemeyer C, Brümmendorf TH, Murthy P, Balabanov S. Prostate cancer-associated autoantibodies in serum against tumor-associated antigens as potential new biomarkers. J Proteomics 2015; 119:218-29. [DOI: 10.1016/j.jprot.2015.02.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 02/10/2015] [Accepted: 02/13/2015] [Indexed: 12/21/2022]
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31
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Gajbhiye JM, More NA, Patil MD, Ummanni R, Kotapalli SS, Yogeeswari P, Sriram D, Masand VH. Discovery of Rimonabant and its potential analogues as anti-TB drug candidates. Med Chem Res 2015. [DOI: 10.1007/s00044-015-1346-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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Abhale YK, Sasane AV, Chavan AP, Deshmukh KK, Kotapalli SS, Ummanni R, Sayyad SF, Mhaske PC. Synthesis and biological screening of 2'-aryl/benzyl-2-aryl-4-methyl-4',5-bithiazolyls as possible anti-tubercular and antimicrobial agents. Eur J Med Chem 2015; 94:340-7. [PMID: 25778990 DOI: 10.1016/j.ejmech.2015.03.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [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: 01/10/2015] [Revised: 03/05/2015] [Accepted: 03/06/2015] [Indexed: 12/21/2022]
Abstract
A series of 2'-aryl/benzyl-2-aryl-4-methyl-4',5-bithiazolyl derivatives, 25-64 were synthesized and evaluated for inhibitory activity against Mycobacterium smegmatis MC(2) 155 strain and antimicrobial activities against four pathogenic bacteria Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Proteus vulgaris. Among them, compounds 40, 49, 50, and 54 exhibited moderate to good inhibition on the growth of the bacteria Mycobacterium smegmatis at the concentration of 30 μM. Compounds 26, 40, 44, 54 and 56 exhibited moderate to good antibacterial activity. Compound 5-(2'-(4-fluorobenzyl)thiazol-4'-yl)-2-(4-fluorophenyl)-4-methyl-thiazole (54) exhibited both antitubercular as well as antimicrobial activity against all tested strains.
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Affiliation(s)
- Yogita K Abhale
- Post-Graduate Department of Chemistry and Research Centre, S. N. Arts, D. J. M. Commerce and B. N. S. Science College, College Road, District Ahmednagar, Sangamner 422 605, India
| | - Amit V Sasane
- Post Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Tilak Road, 411 030 Pune, India
| | - Abhijit P Chavan
- Post Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Tilak Road, 411 030 Pune, India
| | - Keshav K Deshmukh
- Post-Graduate Department of Chemistry and Research Centre, S. N. Arts, D. J. M. Commerce and B. N. S. Science College, College Road, District Ahmednagar, Sangamner 422 605, India
| | - Sudha Sravanti Kotapalli
- Center for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Ramesh Ummanni
- Center for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - Sadikali F Sayyad
- Amrutvahini College of Pharmacy, Amrutnagar, P. O. Sangamner (S.K.), Tal. Dist. Ahmednagar, 422 608 Sangamner, Maharashtra, India
| | - Pravin C Mhaske
- Post Graduate Department of Chemistry, S. P. Mandali's Sir Parashurambhau College, Tilak Road, 411 030 Pune, India.
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33
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Polkam N, Rayam P, Anireddy JS, Yennam S, Anantaraju HS, Dharmarajan S, Perumal Y, Kotapalli SS, Ummanni R, Balasubramanian S. Synthesis, in vitro anticancer and antimycobacterial evaluation of new 5-(2,5-dimethoxyphenyl)-1,3,4-thiadiazole-2-amino derivatives. Bioorg Med Chem Lett 2015; 25:1398-402. [PMID: 25765907 DOI: 10.1016/j.bmcl.2015.02.052] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [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: 12/15/2014] [Revised: 02/07/2015] [Accepted: 02/20/2015] [Indexed: 11/19/2022]
Abstract
A series of 2,5-disubstituted-1,3,4-thiadiazole derivatives 5a-5l, 7a-7e and 9 have been synthesised and screened for in vitro antimycobacterial activity against Mycobacterium smegmatis MC-155. In addition these compounds have also been screened for cytotoxic activity against cancer cell lines HT-29, MDA-MB-231 by MTT colorimetric assay. The compounds are well characterized by spectral analysis viz. (1)H NMR, (13)C NMR, FT-IR, mass and HRMS. Screening results indicate that compounds 5g, 7a possess good antitubercular activity with MIC value 65.74 and 40.86, respectively, compounds 5g, 7a, 7b, 7d, 7e and 9 displayed promising cytotoxic activity against the cell lines tested. 5g and 7a stand out to be potent antimycobacterial and anticancer agents among the tested series. Further the title compounds were also tested on human normal cells HEK293T and are found to be safer with lesser cytotoxicity. It is interesting to observe that compound 5g has come out to be safer, potent anticancer and antimycobacterial agent.
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Affiliation(s)
- Naveen Polkam
- Centre for Chemical Sciences and Technology, IST, Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad 500085, T.S., India
| | - Parsharamulu Rayam
- Centre for Chemical Sciences and Technology, IST, Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad 500085, T.S., India
| | - Jaya Shree Anireddy
- Centre for Chemical Sciences and Technology, IST, Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad 500085, T.S., India.
| | - Satyanarayana Yennam
- Department of Medicinal Chemistry, GVK Biosciences Pvt. Ltd, IDA, Nacharam, Hyderabad 500076, T.S., India
| | - Hasitha Shilpa Anantaraju
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Jawahar Nagar 500078, T.S., India
| | - Sriram Dharmarajan
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Jawahar Nagar 500078, T.S., India
| | - Yogeeswari Perumal
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Jawahar Nagar 500078, T.S., India
| | - Sudha Sravanti Kotapalli
- Center for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, T.S., India
| | - Ramesh Ummanni
- Center for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, T.S., India
| | - Sridhar Balasubramanian
- Laboratory of X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, T.S., India
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Blumenthal A, Giebel J, Warsow G, Li L, Ummanni R, Schordan S, Schordan E, Klemm P, Gretz N, Endlich K, Endlich N. Mechanical stress enhances CD9 expression in cultured podocytes. Am J Physiol Renal Physiol 2014; 308:F602-13. [PMID: 25503725 DOI: 10.1152/ajprenal.00190.2014] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Elevated glomerular pressure represents a high risk for the development of severe kidney diseases and causes an increase in mechanical load to podocytes. In this study, we investigated whether mechanical stress alters gene expression in cultured podocytes using gene arrays. We found that tetraspanin CD9 is significantly upregulated in cultured podocytes after mechanical stress. The differential expression of CD9 was confirmed by RT-PCR and Western blotting under stretched and unstretched conditions. Furthermore, mechanical stress resulted in a relocalization of CD9. To get an insight into the functional role of CD9, podocytes were transfected with pEGFP-CD9. The expression of CD9 induced the formation of substratum-attached thin arborized protrusions. Ca(2+) depletion revealed that podocytes overexpressing CD9 possess altered adhesive properties in contrast to the control transfected cells. Finally, elevated CD9 expression increased migration of podocytes in a wound assay. In summary, our results suggest that upregulation of CD9 may play an important role in podocyte morphology, adhesion, and migration.
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Affiliation(s)
- A Blumenthal
- Department of Anatomy and Cell Biology, Universitätsmedizin Greifswald, Greifswald, Germany
| | - J Giebel
- Department of Anatomy and Cell Biology, Universitätsmedizin Greifswald, Greifswald, Germany;
| | - G Warsow
- Department of Anatomy and Cell Biology, Universitätsmedizin Greifswald, Greifswald, Germany
| | - L Li
- Department of Pathology, University Medical Center Göttingen, Göttingen, Germany
| | - R Ummanni
- Center for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India; and
| | - S Schordan
- Department of Anatomy and Cell Biology, Universitätsmedizin Greifswald, Greifswald, Germany
| | - E Schordan
- Department of Anatomy and Cell Biology, Universitätsmedizin Greifswald, Greifswald, Germany
| | - P Klemm
- Department of Anatomy and Cell Biology, Universitätsmedizin Greifswald, Greifswald, Germany
| | - N Gretz
- Medical Faculty Mannheim, Medical Research Center, University of Heidelberg, Mannheim, Germany
| | - K Endlich
- Department of Anatomy and Cell Biology, Universitätsmedizin Greifswald, Greifswald, Germany
| | - N Endlich
- Department of Anatomy and Cell Biology, Universitätsmedizin Greifswald, Greifswald, Germany
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35
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Kanugula AK, Dhople VM, Völker U, Ummanni R, Kotamraju S. Fluvastatin mediated breast cancer cell death: a proteomic approach to identify differentially regulated proteins in MDA-MB-231 cells. PLoS One 2014; 9:e108890. [PMID: 25268751 PMCID: PMC4182601 DOI: 10.1371/journal.pone.0108890] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 09/04/2014] [Indexed: 01/12/2023] Open
Abstract
Statins are increasingly being recognized as anti-cancer agents against various cancers including breast cancer. To understand the molecular pathways targeted by fluvastatin and its differential sensitivity against metastatic breast cancer cells, we analyzed protein alterations in MDA-MB-231 cells treated with fluvastatin using 2-DE in combination with LC-MS/MS. Results revealed dys-regulation of 39 protein spots corresponding to 35 different proteins. To determine the relevance of altered protein profiles with breast cancer cell death, we mapped these proteins to major pathways involved in the regulation of cell-to-cell signaling and interaction, cell cycle, Rho GDI and proteasomal pathways using IPA analysis. Highly interconnected sub networks showed that vimentin and ERK1/2 proteins play a central role in controlling the expression of altered proteins. Fluvastatin treatment caused proteolysis of vimentin, a marker of epithelial to mesenchymal transition. This effect of fluvastatin was reversed in the presence of mevalonate, a downstream product of HMG-CoA and caspase-3 inhibitor. Interestingly, fluvastatin neither caused an appreciable cell death nor did modulate vimentin expression in normal mammary epithelial cells. In conclusion, fluvastatin alters levels of cytoskeletal proteins, primarily targeting vimentin through increased caspase-3- mediated proteolysis, thereby suggesting a role for vimentin in statin-induced breast cancer cell death.
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Affiliation(s)
| | - Vishnu M. Dhople
- Interfacultary Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Uwe Völker
- Interfacultary Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Ramesh Ummanni
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- * E-mail: (SK); (RU)
| | - Srigiridhar Kotamraju
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- * E-mail: (SK); (RU)
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Sharma GVM, Ramesh A, Singh A, Srikanth G, Jayaram V, Duscharla D, Jun JH, Ummanni R, Malhotra SV. Imidazole derivatives show anticancer potential by inducing apoptosis and cellular senescence. Med Chem Commun 2014. [DOI: 10.1039/c4md00277f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Kanugula AK, Gollavilli PN, Vasamsetti SB, Karnewar S, Gopoju R, Ummanni R, Kotamraju S. Statin‐induced inhibition of breast cancer proliferation and invasion involves attenuation of iron transport: intermediacy of nitric oxide and antioxidant defence mechanisms. FEBS J 2014; 281:3719-3738. [DOI: https:/doi.org/10.1111/febs.12893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 06/23/2014] [Indexed: 11/07/2023]
Abstract
Accumulating evidence from in vitro, in vivo, clinical and epidemiological studies shows promising results for the use of statins against many cancers including breast carcinoma. However, the molecular mechanisms responsible for the anti‐proliferative and anti‐invasive properties of statins still remain elusive. In this study, we investigated the involvement of nitric oxide, iron homeostasis and antioxidant defence mechanisms in mediating the anti‐proliferative and anti‐invasive properties of hydrophobic statins in MDA‐MB‐231, MDA‐MB‐453 and BT‐549 metastatic triple negative breast cancer cells. Fluvastatin and simvastatin significantly increased cytotoxicity which was reversed with mevalonate. Interestingly, fluvastatin downregulated transferrin receptor (TfR1), with a concomitant depletion of intracellular iron levels in these cells. Statin‐induced effects were mimicked by geranylgeranyl transferase inhibitor (GGTI‐298) but not farnesyl transferase inhibitor (FTI‐277). Further, it was observed that TfR1 downregulation is mediated by increased nitric oxide levels via inducible nitric oxide synthase (iNOS) expression. NOS inhibitors (asymmetric dimethylarginine and 1400W) counteracted and sepiapterin, a precursor of tetrahydrobiopterin, exacerbated statin‐induced depletion of intracellular iron levels. Notably, fluvastatin increased manganese superoxide dismutase (by repressing the transcription factor DNA damage‐binding protein 2), catalase and glutathione which, in turn, diminished H2O2 levels. Fluvastatin‐induced downregulation of TfR1, matrix metalloproteinase‐2, ‐9 and inhibition of invasion were reversed in the presence of aminotriazole, a specific inhibitor of catalase. Finally, we conclude that fluvastatin, by altering iron homeostasis, nitric oxide generation and antioxidant defence mechanisms, induces triple negative breast cancer cell death.
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Affiliation(s)
| | | | | | - Santosh Karnewar
- Centre for Chemical Biology CSIR Indian Institute of Chemical Technology Hyderabad India
| | - Raja Gopoju
- Centre for Chemical Biology CSIR Indian Institute of Chemical Technology Hyderabad India
| | - Ramesh Ummanni
- Centre for Chemical Biology CSIR Indian Institute of Chemical Technology Hyderabad India
| | - Srigiridhar Kotamraju
- Centre for Chemical Biology CSIR Indian Institute of Chemical Technology Hyderabad India
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Kanugula AK, Gollavilli PN, Vasamsetti SB, Karnewar S, Gopoju R, Ummanni R, Kotamraju S. Statin-induced inhibition of breast cancer proliferation and invasion involves attenuation of iron transport: intermediacy of nitric oxide and antioxidant defence mechanisms. FEBS J 2014; 281:3719-38. [PMID: 24964743 DOI: 10.1111/febs.12893] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 06/05/2014] [Accepted: 06/23/2014] [Indexed: 11/29/2022]
Abstract
Accumulating evidence from in vitro, in vivo, clinical and epidemiological studies shows promising results for the use of statins against many cancers including breast carcinoma. However, the molecular mechanisms responsible for the anti-proliferative and anti-invasive properties of statins still remain elusive. In this study, we investigated the involvement of nitric oxide, iron homeostasis and antioxidant defence mechanisms in mediating the anti-proliferative and anti-invasive properties of hydrophobic statins in MDA-MB-231, MDA-MB-453 and BT-549 metastatic triple negative breast cancer cells. Fluvastatin and simvastatin significantly increased cytotoxicity which was reversed with mevalonate. Interestingly, fluvastatin downregulated transferrin receptor (TfR1), with a concomitant depletion of intracellular iron levels in these cells. Statin-induced effects were mimicked by geranylgeranyl transferase inhibitor (GGTI-298) but not farnesyl transferase inhibitor (FTI-277). Further, it was observed that TfR1 downregulation is mediated by increased nitric oxide levels via inducible nitric oxide synthase (iNOS) expression. NOS inhibitors (asymmetric dimethylarginine and 1400W) counteracted and sepiapterin, a precursor of tetrahydrobiopterin, exacerbated statin-induced depletion of intracellular iron levels. Notably, fluvastatin increased manganese superoxide dismutase (by repressing the transcription factor DNA damage-binding protein 2), catalase and glutathione which, in turn, diminished H2 O2 levels. Fluvastatin-induced downregulation of TfR1, matrix metalloproteinase-2, -9 and inhibition of invasion were reversed in the presence of aminotriazole, a specific inhibitor of catalase. Finally, we conclude that fluvastatin, by altering iron homeostasis, nitric oxide generation and antioxidant defence mechanisms, induces triple negative breast cancer cell death.
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39
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Ummanni R, Mannsperger HA, Sonntag J, Oswald M, Sharma AK, König R, Korf U. Evaluation of reverse phase protein array (RPPA)-based pathway-activation profiling in 84 non-small cell lung cancer (NSCLC) cell lines as platform for cancer proteomics and biomarker discovery. Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics 2014; 1844:950-9. [DOI: 10.1016/j.bbapap.2013.11.017] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 10/04/2013] [Accepted: 11/13/2013] [Indexed: 12/21/2022]
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Reddy C, Ummanni R, Jithender E, Singh A. Stereoisomers of Ieodoglucomides A and B: Synthesis and Evaluation of Anticancer Activity. SYNTHESIS-STUTTGART 2014. [DOI: 10.1055/s-0033-1340714] [Citation(s) in RCA: 4] [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: 10/25/2022]
Affiliation(s)
- Chada Reddy
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology
| | - Ramesh Ummanni
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology
| | - Enukonda Jithender
- Division of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology
| | - Ashita Singh
- Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology
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Patil NT, Konala A, Sravanti S, Singh A, Ummanni R, Sridhar B. Electrophile induced branching cascade: a powerful approach to access various molecular scaffolds and their exploration as novel anti-mycobacterial agents. Chem Commun (Camb) 2013; 49:10109-11. [DOI: 10.1039/c3cc45289a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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43
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Jozefczuk J, Kashofer K, Ummanni R, Henjes F, Rehman S, Geenen S, Wruck W, Regenbrecht C, Daskalaki A, Wierling C, Turano P, Bertini I, Korf U, Zatloukal K, Westerhoff HV, Lehrach H, Adjaye J. A Systems Biology Approach to Deciphering the Etiology of Steatosis Employing Patient-Derived Dermal Fibroblasts and iPS Cells. Front Physiol 2012; 3:339. [PMID: 22969728 PMCID: PMC3432516 DOI: 10.3389/fphys.2012.00339] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 08/03/2012] [Indexed: 12/23/2022] Open
Abstract
Non-alcoholic fatty liver disease comprises a broad spectrum of disease states ranging from simple steatosis to non-alcoholic steatohepatitis. As a result of increases in the prevalences of obesity, insulin resistance, and hyperlipidemia, the number of people with hepatic steatosis continues to increase. Differences in susceptibility to steatohepatitis and its progression to cirrhosis have been attributed to a complex interplay of genetic and external factors all addressing the intracellular network. Increase in sugar or refined carbohydrate consumption results in an increase of insulin and insulin resistance that can lead to the accumulation of fat in the liver. Here we demonstrate how a multidisciplinary approach encompassing cellular reprogramming, transcriptomics, proteomics, metabolomics, modeling, network reconstruction, and data management can be employed to unveil the mechanisms underlying the progression of steatosis. Proteomics revealed reduced AKT/mTOR signaling in fibroblasts derived from steatosis patients and further establishes that the insulin-resistant phenotype is present not only in insulin-metabolizing central organs, e.g., the liver, but is also manifested in skin fibroblasts. Transcriptome data enabled the generation of a regulatory network based on the transcription factor SREBF1, linked to a metabolic network of glycerolipid, and fatty acid biosynthesis including the downstream transcriptional targets of SREBF1 which include LIPIN1 (LPIN) and low density lipoprotein receptor. Glutathione metabolism was among the pathways enriched in steatosis patients in comparison to healthy controls. By using a model of the glutathione pathway we predict a significant increase in the flux through glutathione synthesis as both gamma-glutamylcysteine synthetase and glutathione synthetase have an increased flux. We anticipate that a larger cohort of patients and matched controls will confirm our preliminary findings presented here.
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Affiliation(s)
- Justyna Jozefczuk
- Department of Vertebrate Genomics, Max Planck Institute for Molecular Genetics Berlin, Germany
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Blumenthal A, Giebel J, Ummanni R, Schlüter R, Endlich K, Endlich N. Morphology and migration of podocytes are affected by CD151 levels. Am J Physiol Renal Physiol 2012; 302:F1265-77. [DOI: 10.1152/ajprenal.00468.2011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
CD151, a member of the tetraspanin family of membrane proteins, is crucially involved in the formation of the glomerular filtration barrier in humans and mice. However, the role of CD151 in podocytes has not been investigated so far. In the present study, we utilized a conditionally immortalized mouse podocyte cell line to characterize CD151 in podocytes and to examine the consequences of manipulating CD151 expression levels. Mouse podocytes endogenously express CD151 as determined by RT-PCR and Western blotting. GFP-CD151 fusion protein localized to the cell membrane, to cell protrusions and cell-cell contacts, colocalizing with actin, β1-integrin, zonula occludens-1, and CD9. The expression of GFP-CD151 in cultured podocytes resulted in a marked increase in the presence of thin arborized protrusions (TAPs). TAPs are distinct from filopodia by increased length, protein composition, branched morphology, and slower dynamics. Furthermore, the migration rate of pEGFP-CD151-transfected podocytes was reduced in a wound assay. Fluorescence recovery after photo bleaching measurements revealed a half-time of 3 s for GFP-CD151 consistent with a high mobility of CD151 in the membrane and cytosol. CD151 knockdown in podocytes reduced β1-integrin expression and podocyte cell area, indicating diminished adherence and/or spreading. Our results indicate that CD151 importantly modulates podocyte function.
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Affiliation(s)
- Antje Blumenthal
- Department of Anatomy and Cell Biology, Universitätsmedizin Greifswald, Greifswald, Germany
| | - Jürgen Giebel
- Department of Anatomy and Cell Biology, Universitätsmedizin Greifswald, Greifswald, Germany
| | - Ramesh Ummanni
- Department of Medical Biochemistry and Molecular Biology, Universitätsmedizin Greifswald, Greifswald, Germany; and
| | - Rabea Schlüter
- Institute of Microbiology, Department of Applied Microbiology, University of Greifswald, Greifswald, Germany
| | - Karlhans Endlich
- Department of Anatomy and Cell Biology, Universitätsmedizin Greifswald, Greifswald, Germany
| | - Nicole Endlich
- Department of Anatomy and Cell Biology, Universitätsmedizin Greifswald, Greifswald, Germany
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Ummanni R, Barreto F, Venz S, Scharf C, Barett C, Mannsperger HA, Brase JC, Kuner R, Schlomm T, Sauter G, Sültmann H, Korf U, Bokemeyer C, Walther R, Brümmendorf TH, Balabanov S. Peroxiredoxins 3 and 4 are overexpressed in prostate cancer tissue and affect the proliferation of prostate cancer cells in vitro. J Proteome Res 2012; 11:2452-66. [PMID: 22424448 DOI: 10.1021/pr201172n] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The present study aimed to investigate the proteome profiling of surgically treated prostate cancers. Hereto, 2D-DIGE and mass spectrometry were performed for protein identification, and data validation for peroxiredoxin 3 and 4 (PRDX3 and PRDX4) was accomplished by reverse phase protein arrays (RPPA). The Formal Concept Analysis (FCA) method was applied to assess whether the TMPRSS2-ERG gene fusion could influence the degree of overexpression of PRDX3 and PRDX4 in prostate cancer. Lastly, we performed an in vitro functional characterization of both PRDX3 and PRDX4 using the classical human prostate cancer cell lines DU145 and LNCaP. Reverse phase protein arrays verified that the overexpression of both PRDX3 and PRDX4 in tumor samples is negatively correlated with the presence of the TMPRSS2-ERG gene fusion. Functional characterization of PRDX3 and PRDX4 activity in PCa cell lines suggests a role of these members of the peroxiredoxin family in the pathophysiology of this tumor entity.
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Affiliation(s)
- Ramesh Ummanni
- Department of Oncology, Haematology and Bone marrow transplantation, section Pneumology, Hubertus Wald-Tumour Zentrum, University Hospital Eppendorf, Hamburg, Germany
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46
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Ummanni R, Jost E, Braig M, Lohmann F, Mundt F, Barett C, Schlomm T, Sauter G, Senff T, Bokemeyer C, Sültmann H, Meyer-Schwesinger C, Brümmendorf TH, Balabanov S. Ubiquitin carboxyl-terminal hydrolase 1 (UCHL1) is a potential tumour suppressor in prostate cancer and is frequently silenced by promoter methylation. Mol Cancer 2011; 10:129. [PMID: 21999842 PMCID: PMC3212821 DOI: 10.1186/1476-4598-10-129] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [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: 05/15/2011] [Accepted: 10/14/2011] [Indexed: 11/10/2022] Open
Abstract
Background We have previously reported significant downregulation of ubiquitin carboxyl-terminal hydrolase 1 (UCHL1) in prostate cancer (PCa) compared to the surrounding benign tissue. UCHL1 plays an important role in ubiquitin system and different cellular processes such as cell proliferation and differentiation. We now show that the underlying mechanism of UCHL1 downregulation in PCa is linked to its promoter hypermethylation. Furthermore, we present evidences that UCHL1 expression can affect the behavior of prostate cancer cells in different ways. Results Methylation specific PCR analysis results showed a highly methylated promoter region for UCHL1 in 90% (18/20) of tumor tissue compared to 15% (3/20) of normal tissues from PCa patients. Pyrosequencing results confirmed a mean methylation of 41.4% in PCa whereas only 8.6% in normal tissues. To conduct functional analysis of UCHL1 in PCa, UCHL1 is overexpressed in LNCaP cells whose UCHL1 expression is normally suppressed by promoter methylation and found that UCHL1 has the ability to decrease the rate of cell proliferation and suppresses anchorage-independent growth of these cells. In further analysis, we found evidence that exogenous expression of UCHL1 suppress LNCaP cells growth probably via p53-mediated inhibition of Akt/PKB phosphorylation and also via accumulation of p27kip1 a cyclin dependant kinase inhibitor of cell cycle regulating proteins. Notably, we also observed that exogenous expression of UCHL1 induced a senescent phenotype that was detected by using the SA-ß-gal assay and might be due to increased p14ARF, p53, p27kip1 and decreased MDM2. Conclusion From these results, we propose that UCHL1 downregulation via promoter hypermethylation plays an important role in various molecular aspects of PCa biology, such as morphological diversification and regulation of proliferation.
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Affiliation(s)
- Ramesh Ummanni
- Department of Oncology, Haematology and Bone marrow transplantation with section Pneumology, Hubertus Wald-Tumour Zentrum (UCCH), University Hospital Eppendorf (UKE), Hamburg, Germany
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47
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Ummanni R, Mundt F, Pospisil H, Venz S, Scharf C, Barett C, Fälth M, Köllermann J, Walther R, Schlomm T, Sauter G, Bokemeyer C, Sültmann H, Schuppert A, Brümmendorf TH, Balabanov S. Identification of clinically relevant protein targets in prostate cancer with 2D-DIGE coupled mass spectrometry and systems biology network platform. PLoS One 2011; 6:e16833. [PMID: 21347291 PMCID: PMC3037937 DOI: 10.1371/journal.pone.0016833] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [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: 08/30/2010] [Accepted: 01/16/2011] [Indexed: 11/18/2022] Open
Abstract
Prostate cancer (PCa) is the most common type of cancer found in men and among the leading causes of cancer death in the western world. In the present study, we compared the individual protein expression patterns from histologically characterized PCa and the surrounding benign tissue obtained by manual micro dissection using highly sensitive two-dimensional differential gel electrophoresis (2D-DIGE) coupled with mass spectrometry. Proteomic data revealed 118 protein spots to be differentially expressed in cancer (n = 24) compared to benign (n = 21) prostate tissue. These spots were analysed by MALDI-TOF-MS/MS and 79 different proteins were identified. Using principal component analysis we could clearly separate tumor and normal tissue and two distinct tumor groups based on the protein expression pattern. By using a systems biology approach, we could map many of these proteins both into major pathways involved in PCa progression as well as into a group of potential diagnostic and/or prognostic markers. Due to complexity of the highly interconnected shortest pathway network, the functional sub networks revealed some of the potential candidate biomarker proteins for further validation. By using a systems biology approach, our study revealed novel proteins and molecular networks with altered expression in PCa. Further functional validation of individual proteins is ongoing and might provide new insights in PCa progression potentially leading to the design of novel diagnostic and therapeutic strategies.
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Affiliation(s)
- Ramesh Ummanni
- Department of Oncology, Haematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumor Zentrum, University Hospital Eppendorf, Hamburg, Germany
| | - Frederike Mundt
- Department of Oncology, Haematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumor Zentrum, University Hospital Eppendorf, Hamburg, Germany
| | - Heike Pospisil
- Bioinformatics, University of Applied Sciences Wildau, Wildau, Germany
| | - Simone Venz
- Department of Medical Biochemistry and Molecular Biology, University of Greifswald, Greifswald, Germany
- Interfacultary Institute of Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Christian Scharf
- Interfacultary Institute of Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Greifswald, Greifswald, Germany
| | - Christine Barett
- Department of Oncology, Haematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumor Zentrum, University Hospital Eppendorf, Hamburg, Germany
| | - Maria Fälth
- Cancer Genome Research, Deutsches Krebsforschungszentrum, Heidelberg, Germany
| | - Jens Köllermann
- Department of Pathology, University Hospital Eppendorf, Hamburg, Germany
| | - Reinhard Walther
- Department of Medical Biochemistry and Molecular Biology, University of Greifswald, Greifswald, Germany
| | - Thorsten Schlomm
- Prostate Cancer Center, University Hospital Eppendorf, Hamburg, Germany
| | - Guido Sauter
- Department of Pathology, University Hospital Eppendorf, Hamburg, Germany
| | - Carsten Bokemeyer
- Department of Oncology, Haematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumor Zentrum, University Hospital Eppendorf, Hamburg, Germany
| | - Holger Sültmann
- Cancer Genome Research, Deutsches Krebsforschungszentrum, Heidelberg, Germany
| | - A. Schuppert
- Aachen Institute for Advanced Study in Computational Engineering Science, RWTH Aachen University, Aachen, Germany
| | - Tim H. Brümmendorf
- Department of Oncology, Haematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumor Zentrum, University Hospital Eppendorf, Hamburg, Germany
- Medizinische Klinik IV - Hämatologie und Onkologie, RWTH Aachen University, Aachen, Germany
| | - Stefan Balabanov
- Department of Oncology, Haematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumor Zentrum, University Hospital Eppendorf, Hamburg, Germany
- * E-mail:
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Binder M, Léchenne B, Ummanni R, Scharf C, Balabanov S, Trusch M, Schlüter H, Braren I, Spillner E, Trepel M. Stereotypical chronic lymphocytic leukemia B-cell receptors recognize survival promoting antigens on stromal cells. PLoS One 2010; 5:e15992. [PMID: 21209908 PMCID: PMC3012720 DOI: 10.1371/journal.pone.0015992] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [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: 08/31/2010] [Accepted: 12/02/2010] [Indexed: 02/07/2023] Open
Abstract
Chronic lymphocytic leukemia (CLL) is the most common leukemia in the Western world. Survival of CLL cells depends on their close contact with stromal cells in lymphatic tissues, bone marrow and blood. This microenvironmental regulation of CLL cell survival involves the stromal secretion of chemo- and cytokines as well as the expression of adhesion molecules. Since CLL survival may also be driven by antigenic stimulation through the B-cell antigen receptor (BCR), we explored the hypothesis that these processes may be linked to each other. We tested if stromal cells could serve as an antigen reservoir for CLL cells, thus promoting CLL cell survival by stimulation through the BCR. As a proof of principle, we found that two CLL BCRs with a common stereotyped heavy chain complementarity-determining region 3 (previously characterized as “subset 1”) recognize antigens highly expressed in stromal cells – vimentin and calreticulin. Both antigens are well-documented targets of autoantibodies in autoimmune disorders. We demonstrated that vimentin is displayed on the surface of viable stromal cells and that it is present and bound by the stereotyped CLL BCR in CLL-stroma co-culture supernatant. Blocking the vimentin antigen by recombinant soluble CLL BCR under CLL-stromal cell co-culture conditions reduces stroma-mediated anti-apoptotic effects by 20–45%. We therefore conclude that CLL BCR stimulation by stroma-derived antigens can contribute to the protective effect that the stroma exerts on CLL cells. This finding sheds a new light on the understanding of the pathobiology of this so far mostly incurable disease.
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Affiliation(s)
- Mascha Binder
- Department of Oncology and Hematology, Hubertus Wald Tumorzentrum/University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Barbara Léchenne
- Department of Oncology and Hematology, Hubertus Wald Tumorzentrum/University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ramesh Ummanni
- Department of Oncology and Hematology, Hubertus Wald Tumorzentrum/University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christan Scharf
- Department of Otorhinolaryngology, University of Greifswald, Greifswald, Germany
| | - Stefan Balabanov
- Department of Oncology and Hematology, Hubertus Wald Tumorzentrum/University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Maria Trusch
- Department of Clinical Chemistry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hartmut Schlüter
- Department of Clinical Chemistry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ingke Braren
- Department of Chemistry, University of Hamburg, Hamburg, Germany
| | - Edzard Spillner
- Department of Chemistry, University of Hamburg, Hamburg, Germany
| | - Martin Trepel
- Department of Oncology and Hematology, Hubertus Wald Tumorzentrum/University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- * E-mail:
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Ummanni R, Lehnigk U, Zimmermann U, Woenckhaus C, Walther R, Giebel J. Immunohistochemical expression of caspase-1 and -9, uncleaved caspase-3 and -6, cleaved caspase-3 and -6 as well as Bcl-2 in benign epithelium and cancer of the prostate. Exp Ther Med 2010; 1:47-52. [PMID: 23136591 DOI: 10.3892/etm_00000008] [Citation(s) in RCA: 19] [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] [Received: 08/06/2009] [Accepted: 10/12/2009] [Indexed: 11/05/2022] Open
Abstract
Activation of caspases is an essential prerequisite for induction of apoptosis. In many tumors caspases are down-regulated, while anti-apoptotic Bcl-2 is up-regulated. To elucidate their putative role in prostate cancer (PCa) we determined the expression of different caspases and Bcl-2 in benign prostate epithelium (BPE) and PCa. Paraffin-embedded prostate whole mounts were cut (4 μm) and investigated immunohistochemically using monoclonal antibodies against caspase-1 and -9, uncleaved caspase-3 and -6, cleaved caspase-3 and -6, and Bcl-2. In BPE all caspases were localized to the cytoplasm of glandular cells. In PCa we found a statistically significant reduction in cleaved caspase-3 and -6 compared to the levels in BPE. The Bcl-2 protein was detected in the basal compartment of epithelial gland cells, but no immunostaining was noted in PCa. The decreased immunoreactivity of activated caspases probably indicates an alteration in post-translational cleavage that may play an important role during PCa progression.
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Affiliation(s)
- Ramesh Ummanni
- Departments of Medical Biochemistry and Molecular Biology ; Hubertus Wald Tumorzentrum-UCCH Onkologisches Zentrum-Medizinische Klinik II, Universitätsklinikum Hamburg-Eppendorf, D-20251 Hamburg, Germany
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Ummanni R, Teller S, Junker H, Zimmermann U, Venz S, Scharf C, Giebel J, Walther R. Altered expression of tumor protein D52 regulates apoptosis and migration of prostate cancer cells. FEBS J 2008; 275:5703-13. [PMID: 18959755 DOI: 10.1111/j.1742-4658.2008.06697.x] [Citation(s) in RCA: 64] [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: 11/27/2022]
Abstract
Tumor protein D52 (TPD52) is a protein found to be overexpressed in prostate and breast cancer due to gene amplification. However, its physiological function remains under investigation. In the present study, we investigated the response of the LNCaP human prostate carcinoma cell line to deregulation of TPD52 expression. Proteomic analysis of prostate biopsies showed TPD52 overexpression at the protein level, whereas its transcriptional upregulation was demonstrated by real-time PCR. Transfection of LNCaP cells with a specific small hairpin RNA giving efficient knockdown of TPD52 resulted in significant cell death of the carcinoma LNCaP cells. As demonstrated by activation of caspases (caspase-3 and -9), and by the loss of mitochondrial membrane potential, cell death occurs due to apoptosis. The disruption of the mitochondrial membrane potential indicates that TPD52 acts upstream of the mitochondrial apoptotic reaction. To study the effect of TPD52 expression on cell proliferation, LNCaP cells were either transfected with enhanced green fluorescence protein-TPD52 or a specific small hairpin RNA. Enhanced green fluorescence protein-TPD52 overexpressing cells showed an increased proliferation rate, whereas TPD52-depleted cells showed the reverse effect. Additionally, we demonstrate that exogenous expression of TPD52 promotes cell migration via alphav beta3 integrin in prostate cancer cells through activation of the protein kinase B/Akt signaling pathway. From these results, we conclude that TPD52 plays an important role in various molecular events, particularly in the morphological diversification and dissemination of prostate carcinoma cells, and may be a promising target with respect to developing new therapeutic strategies to treat prostate cancer.
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Affiliation(s)
- Ramesh Ummanni
- Department of Medical Biochemistry and Molecular Biology, University of Greifswald, Germany
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