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Abdullah KM, Sharma G, Qais FA, Khan I, Takkar S, Kaushal JB, Kanchan R, Sarwar T, Chakravarti B, Siddiqui JA. Hydroxychloroquine interaction with phosphoinositide 3-kinase modulates prostate cancer growth in bone microenvironment: In vitro and molecular dynamics based approach. Int J Biol Macromol 2024:130912. [PMID: 38513896 DOI: 10.1016/j.ijbiomac.2024.130912] [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: 12/26/2023] [Revised: 03/06/2024] [Accepted: 03/13/2024] [Indexed: 03/23/2024]
Abstract
Patients with advanced prostate cancer (PCa) are more likely to develop bone metastases. Tumor cells thrive in the bone microenvironment, interacting with osteoblasts and osteoclasts. Given the PI3K/AKT pathway's metastatic potential and signal integration's ability to modulate cell fates in PCa development, drugs targeting this system have great therapeutic promise. Hydroxychloroquine (HCQ) is an anti-malarial medication commonly used to treat clinical conditions such as rheumatology and infectious disorders. We explored the anti-neoplastic effect of HCQ on PC3 and C42B cell lines in the bone microenvironment. Interestingly, HCQ treatment substantially decreases the viability, proliferation, and migration potential of PCa cells in the bone microenvironment. HCQ induces apoptosis and cell cycle arrest, even in the presence of osteoblast-secreted factors. Mechanistically, HCQ inhibited the activity of the PI3K/AKT signaling pathway, which ultimately regulates the proliferation and migration of PCa cells in the bone. The binding energy for docking HCQ with PI3K was -6.7 kcal/mol, and the complex was stabilized by hydrogen bonds, hydrophobic forces, and van der Waals forces. Molecular simulations further validated the structural integrity of the HCQ-PI3K complex without altering PI3K's secondary structure. Our findings underscore the efficacy of HCQ as a potential therapeutic agent in treating PCa.
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Affiliation(s)
- K M Abdullah
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha NE-68198, USA
| | - Gunjan Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha NE-68198, USA
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, UP 202002, India
| | - Imran Khan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha NE-68198, USA
| | - Simran Takkar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha NE-68198, USA
| | - Jyoti B Kaushal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha NE-68198, USA
| | - Ranjana Kanchan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha NE-68198, USA
| | - Tarique Sarwar
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, 51452, Saudi Arabia
| | - Bandana Chakravarti
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Jawed A Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha NE-68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha NE-68198, USA.
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Takkar S, Sharma G, Kaushal JB, Abdullah KM, Batra SK, Siddiqui JA. From orphan to oncogene: The role of GPR35 in cancer and immune modulation. Cytokine Growth Factor Rev 2024:S1359-6101(24)00029-7. [PMID: 38514303 DOI: 10.1016/j.cytogfr.2024.03.004] [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: 01/12/2024] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 03/23/2024]
Abstract
G protein-coupled receptors (GPCRs) are well-studied and the most traceable cell surface receptors for drug discovery. One of the intriguing members of this family is G protein-coupled receptors 35 (GPR35), which belongs to the class A rhodopsin-like family of GPCRs identified over two decades ago. GPR35 presents interesting features such as ubiquitous expression and distinct isoforms. Moreover, functional and genome-wide association studies on its widespread expression have linked GPR35 with pathophysiological disease progression. Various pieces of evidence have been accumulated regarding the independent or endogenous ligand-dependent role of GPR35 in cancer progression and metastasis. In the current scenario, the relationship of this versatile receptor and its putative endogenous ligands for the activation of oncogenic signal transduction pathways at the cellular level is an active area of research. These intriguing features offered by GPR35 make it an oncological target, justifying its uniqueness at the physiological and pathophysiological levels concerning other GPCRs. For pharmacologically targeting receptor-induced signaling, few potential competitive antagonists have been discovered that offer high selectivity at a human level. In addition to its fascinating features, targeting GPR35 at rodent and human orthologue levels is distinct, thus contributing to the sub-species selectivity. Strategies to modulate these issues will help us understand and truly target GPR35 at the therapeutic level. In this article, we have provided prospects on each topic mentioned above and suggestions to overcome the challenges. This review discusses the molecular mechanism and signal transduction pathways activated by endogenous ligands or spontaneous auto-activation of GPR35 that contributes towards disease progression. Furthermore, we have highlighted the GPR35 structure, ubiquitous expression, its role in immunomodulation, and at the pathophysiological level, especially in cancer, indicating its status as a versatile receptor. Subsequently, we discussed the various proposed ligands and their mechanism of interaction with GPR35. Additionally, we have summarized the GPR35 antagonist that provides insights into the opportunities for therapeutically targeting this receptor.
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Affiliation(s)
- Simran Takkar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Gunjan Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Jyoti B Kaushal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - K M Abdullah
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA.
| | - Jawed A Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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Abdullah K, Kaushal JB, Takkar S, Sharma G, Alsafwani ZW, Pothuraju R, Batra SK, Siddiqui JA. Copper metabolism and cuproptosis in human malignancies: Unraveling the complex interplay for therapeutic insights. Heliyon 2024; 10:e27496. [PMID: 38486750 PMCID: PMC10938126 DOI: 10.1016/j.heliyon.2024.e27496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/17/2024] Open
Abstract
Copper, a vital trace element, orchestrates diverse cellular processes ranging from energy production to antioxidant defense and angiogenesis. Copper metabolism and cuproptosis are closely linked in the context of human diseases, with a particular focus on cancer. Cuproptosis refers to a specific type of copper-mediated cell death or copper toxicity triggered by disruptions in copper metabolism within the cells. This phenomenon encompasses a spectrum of mechanisms, such as oxidative stress, mitochondrial dysfunction, endoplasmic reticulum stress, and perturbations in metal ion equilibrium. Mechanistically, cuproptosis is driven by copper binding to the lipoylated enzymes within the tricarboxylic acid (TCA) cycle. This interaction participates in protein aggregation and proteotoxic stress, ultimately culminating in cell death. Targeting copper metabolism and its associated pathways in cancer cells hold therapeutic potential by selectively targeting and eliminating cancerous cells. Strategies to modulate copper levels, enhance copper excretion, or interfere with cuproptotic pathways are being explored to identify novel therapeutic targets for cancer therapy and improve patient outcomes. Understanding the relationship between cuproptosis and copper metabolism in human malignancies remains an active area of research. This review provides a comprehensive overview of the association among copper metabolism, copper homeostasis, and carcinogenesis, explicitly emphasizing the cuproptosis mechanism and its implications for cancer pathogenesis. Additionally, we emphasize the therapeutic aspects of targeting copper and cuproptosis for cancer treatment.
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Affiliation(s)
- K.M. Abdullah
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Jyoti B. Kaushal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Simran Takkar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Gunjan Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Zahraa W. Alsafwani
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ramesh Pothuraju
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, 695014, Kerala, India
| | - Surinder Kumar Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Jawed Akhtar Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA
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Abdullah KM, Sharma G, Takkar S, Kaushal JB, Pothuraju R, Chakravarti B, Batra SK, Siddiqui JA. α-lipoic acid modulates prostate cancer cell growth and bone cell differentiation. Sci Rep 2024; 14:4404. [PMID: 38388663 PMCID: PMC10884017 DOI: 10.1038/s41598-024-54479-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 02/12/2024] [Indexed: 02/24/2024] Open
Abstract
Prostate cancer (PCa) progression leads to bone modulation in approximately 70% of affected men. A nutraceutical, namely, α-lipoic acid (α-LA), is known for its potent anti-cancer properties towards various cancers and has been implicated in treating and promoting bone health. Our study aimed to explore the molecular mechanism behind the role of α-LA as therapeutics in preventing PCa and its associated bone modulation. Notably, α-LA treatment significantly reduced the cell viability, migration, and invasion of PCa cell lines in a dose-dependent manner. In addition, α-LA supplementation dramatically increased reactive oxygen species (ROS) levels and HIF-1α expression, which started the downstream molecular cascade and activated JNK/caspase-3 signaling pathway. Flow cytometry data revealed the arrest of the cell cycle in the S-phase, which has led to apoptosis of PCa cells. Furthermore, the results of ALP (Alkaline phosphatase) and TRAP (tartrate-resistant acid phosphatase) staining signifies that α-LA supplementation diminished the PCa-mediated differentiation of osteoblasts and osteoclasts, respectively, in the MC3T3-E1 and bone marrow macrophages (BMMs) cells. In summary, α-LA supplementation enhanced cellular apoptosis via increased ROS levels, HIF-1α expression, and JNK/caspase-3 signaling pathway in advanced human PCa cell lines. Also, the treatment of α-LA improved bone health by reducing PCa-mediated bone cell modulation.
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Affiliation(s)
- K M Abdullah
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Gunjan Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Simran Takkar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Jyoti B Kaushal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ramesh Pothuraju
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
| | - Bandana Chakravarti
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Department of Biochemistry and Molecular Biology, Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
| | - Jawed A Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Department of Biochemistry and Molecular Biology, Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
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Sharma G, Sultana A, Abdullah KM, Pothuraju R, Nasser MW, Batra SK, Siddiqui JA. Epigenetic regulation of bone remodeling and bone metastasis. Semin Cell Dev Biol 2024; 154:275-285. [PMID: 36379849 PMCID: PMC10175516 DOI: 10.1016/j.semcdb.2022.11.002] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 11/13/2022]
Abstract
Bone remodeling is a continuous and dynamic process of bone formation and resorption to maintain its integrity and homeostasis. Bone marrow is a source of various cell lineages, including osteoblasts and osteoclasts, which are involved in bone formation and resorption, respectively, to maintain bone homeostasis. Epigenetics is one of the elementary regulations governing the physiology of bone remodeling. Epigenetic modifications, mainly DNA methylation, histone modifications, and non-coding RNAs, regulate stable transcriptional programs without causing specific heritable alterations. DNA methylation in CpG-rich promoters of the gene is primarily correlated with gene silencing, and histone modifications are associated with transcriptional activation/inactivation. However, non-coding RNAs regulate the metastatic potential of cancer cells to metastasize at secondary sites. Deregulated or altered epigenetic modifications are often seen in many cancers and interwound with bone-specific tropism and cancer metastasis. Histone acetyltransferases, histone deacetylase, and DNA methyltransferases are promising targets in epigenetically altered cancer. High throughput epigenome mapping and targeting specific epigenetics modifiers will be helpful in the development of personalized epi-drugs for advanced and bone metastasis cancer patients. This review aims to discuss and gather more knowledge about different epigenetic modifications in bone remodeling and metastasis. Further, it provides new approaches for targeting epigenetic changes and therapy research.
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Affiliation(s)
- Gunjan Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Ashrafi Sultana
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - K M Abdullah
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Ramesh Pothuraju
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Mohd Wasim Nasser
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Surinder Kumar Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Jawed Akhtar Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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Sharma G, Verma R, Masuda S, Badawy KM, Singh N, Tsukuda T, Polshettiwar V. Pt-doped Ru nanoparticles loaded on 'black gold' plasmonic nanoreactors as air stable reduction catalysts. Nat Commun 2024; 15:713. [PMID: 38267414 PMCID: PMC10808126 DOI: 10.1038/s41467-024-44954-4] [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: 07/11/2023] [Accepted: 01/10/2024] [Indexed: 01/26/2024] Open
Abstract
This study introduces a plasmonic reduction catalyst, stable only in the presence of air, achieved by integrating Pt-doped Ru nanoparticles on black gold. This innovative black gold/RuPt catalyst showcases good efficiency in acetylene semi-hydrogenation, attaining over 90% selectivity with an ethene production rate of 320 mmol g-1 h-1. Its stability, evident in 100 h of operation with continuous air flow, is attributed to the synergy of co-existing metal oxide and metal phases. The catalyst's stability is further enhanced by plasmon-mediated concurrent reduction and oxidation of the active sites. Finite-difference time-domain simulations reveal a five-fold electric field intensification near the RuPt nanoparticles, crucial for activating acetylene and hydrogen. Kinetic isotope effect analysis indicates the contribution from the plasmonic non-thermal effects along with the photothermal. Spectroscopic and in-situ Fourier transform infrared studies, combined with quantum chemical calculations, elucidate the molecular reaction mechanism, emphasizing the cooperative interaction between Ru and Pt in optimizing ethene production and selectivity.
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Affiliation(s)
- Gunjan Sharma
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Mumbai, 40005, India
| | - Rishi Verma
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Mumbai, 40005, India
| | - Shinya Masuda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo, 113-0033, Japan
| | | | - Nirpendra Singh
- Department of Physics, Khalifa University, Abu Dhabi, 127788, United Arab Emirates
| | - Tatsuya Tsukuda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo, 113-0033, Japan.
| | - Vivek Polshettiwar
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Mumbai, 40005, India.
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Manoharan V, Sharma G, Devana SK, Sharma S, Avti P, Chandramouli S. A prospective case-control study on the evaluation of oxidative stress in renal stone formers. Urolithiasis 2024; 52:18. [PMID: 38165517 DOI: 10.1007/s00240-023-01514-7] [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: 09/14/2023] [Accepted: 11/26/2023] [Indexed: 01/03/2024]
Abstract
Association of increased oxidative stress (OS) with the pathophysiology of renal stone formation has not been explored greatly in the field of urolithiasis. In this prospective case-control study, we measured 24-h urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) levels in patients with urolithiasis and compared them with matched healthy controls. We also measured 24-h urinary uric acid, calcium, oxalate, and citrate levels in patients with renal stone disease and studied their relation with urinary 8-OHdG levels. Seventy-five cases of renal stone disease and 75 well-matched controls were included. Median 24-h urinary 8-OHdG levels were significantly higher in cases compared to controls (7.6 vs. 3.7 µg/g of creatinine; p < 0.000). Receiver-operating curve (ROC) analysis for 8-OHdG between cases and controls revealed an area under the curve of 0.90. At 8-OHdG (µg/g of creatinine) value of 5 or more, a sensitivity and a specificity of 84% each were obtained. A positive correlation between 8-OHdG (µg/g of creatinine) and 24-h urinary oxalate level was noted (r = 0.461, p = 0.000). No correlation between 8-OHdG (µg/g of creatinine) and other variables was noted. On multivariate linear regression analysis, we noted 24-h urinary oxalate levels to be an independent predictor of urinary 8-OHdG levels. OS is significantly higher in patients with renal stone diseases compared to healthy controls. Urinary oxalate levels were significantly correlated with urinary 8-OHdG levels.
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Affiliation(s)
- V Manoharan
- Department of Urology, PGIMER, Chandigarh, India
| | - G Sharma
- Department of Urology, PGIMER, Chandigarh, India
| | - S K Devana
- Department of Urology, PGIMER, Chandigarh, India.
| | - S Sharma
- Department of Biochemistry, PGIMER, Chandigarh, India
| | - P Avti
- Department of Biophysics, PGIMER, Chandigarh, India
| | - S Chandramouli
- Department of General Surgery, PGIMER, Chandigarh, India
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Sahay SC, Kesarwani P, Sharma G, Tiwari A. Sahay's modification of Winter's shunt technique for priapism. Indian J Urol 2024; 40:72-73. [PMID: 38314082 PMCID: PMC10836460 DOI: 10.4103/iju.iju_407_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 11/23/2023] [Accepted: 12/08/2023] [Indexed: 02/06/2024] Open
Affiliation(s)
| | - P. Kesarwani
- Department of Urology, Max Superspeciality Hospital, Delhi, India
| | - G. Sharma
- Department of Urology, Max Superspeciality Hospital, Delhi, India
| | - A. Tiwari
- Department of Urology, Max Superspeciality Hospital, Delhi, India
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Devan K, Sharma G. Author's Reply. RE: The effectiveness of telepsychiatry: thematic review. BJPsych Bull 2023; 47:361-362. [PMID: 38029788 PMCID: PMC10694677 DOI: 10.1192/bjb.2023.83] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2023] Open
Affiliation(s)
- Karrish Devan
- Dual Medical Psychotherapy & General Adult Psychiatry Trainee, Royal College of Psychiatrists, UK.
| | - Gunjan Sharma
- Dual Medical Psychotherapy & Forensic Psychiatry Trainee, Royal College of Psychiatrists, UK
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Sharma G, Seth A, Giri RP, Hayen N, Murphy BM, Ghosh SK. Ionic Liquid-Induced Assembly of DNA at Air-Water Interface. Langmuir 2023; 39:16079-16089. [PMID: 37922422 DOI: 10.1021/acs.langmuir.3c02212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
DNA nanotechnology is the future of many products in the pharmaceutical and cosmetic industries. Self-assembly of this negatively charged biopolymer at surfaces and interfaces is an essential step to elaborate its field of applications. In this study, the ionic liquid (IL) monolayer-assisted self-assembly of DNA macromolecules at the air-water interface has been closely monitored by employing various quantitative techniques, namely, surface pressure-area (π-A) isotherms, surface potential, interfacial rheology, and X-ray reflectivity (XRR). The π-A isotherms reveal that the IL 1,3-didecyl 3-methyl imidazolium chloride induces DNA self-assembly at the interface, leading to a thick viscoelastic film. The interfacial rheology exhibits a notable rise in the viscoelastic modulus as the surface pressure increases. The values of storage and loss moduli measured as a function of strain frequency suggest a relaxation frequency that depends on the length of the macromolecule. The XRR measurements indicate a considerable increase in DNA layer thickness at the elevated surface pressures depending on the number of base pairs of the DNA. The results are considered in terms of the electrostatic and hydrophobic interactions, allowing a quantitative conclusion about the arrangement of DNA strands underneath the monolayer of the ILs at the air-water interface.
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Affiliation(s)
- Gunjan Sharma
- Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence, NH 91, Tehsil Dadri, G. B. Nagar, Uttar Pradesh, 201314, India
| | - Ajit Seth
- Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence, NH 91, Tehsil Dadri, G. B. Nagar, Uttar Pradesh, 201314, India
| | - Rajendra P Giri
- Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität Zu Kiel, 24098 Kiel, Germany
| | - Nicolas Hayen
- Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität Zu Kiel, 24098 Kiel, Germany
| | - Bridget M Murphy
- Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität Zu Kiel, 24098 Kiel, Germany
| | - Sajal K Ghosh
- Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence, NH 91, Tehsil Dadri, G. B. Nagar, Uttar Pradesh, 201314, India
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Tiwari G, Sharma G, Verma R, Gakhad P, Singh AK, Polshettiwar V, Jagirdar BR. Acetylene Semi-Hydrogenation at Room Temperature over Pd-Zn Nanocatalyst. Chemistry 2023; 29:e202301932. [PMID: 37632841 DOI: 10.1002/chem.202301932] [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: 06/18/2023] [Revised: 08/20/2023] [Accepted: 08/26/2023] [Indexed: 08/28/2023]
Abstract
A reaction of fundamental and commercial importance is acetylene semi-hydrogenation. Acetylene impurity in the ethylene feedstock used in the polyethylene industry poisons the Ziegler-Natta catalyst which adversely affects the polymer quality. Pd based catalysts are most often employed for converting acetylene into the main reactant, ethylene, however, it often involves a tradeoff between the conversion and the selectivity and generally requires high temperatures. In this work, bimetallic Pd-Zn nanoparticles capped by hexadecylamine (HDA) have been synthesized by co-digestive ripening of Pd and Zn nanoparticles and studied for semi-hydrogenation of acetylene. The catalyst showed a high selectivity of ~85 % towards ethylene with a high ethylene productivity to the tune of ~4341 μmol g-1 min-1 , at room temperature and atmospheric pressure. It also exhibited excellent stability with ethylene selectivity remaining greater than 85 % even after 70 h on stream. To the best of the authors' knowledge, this is the first report of room temperature acetylene semi-hydrogenation, with the catalyst effecting high amount of acetylene conversion to ethylene retaining excellent selectivity and stability among all the reported catalysts thus far. DFT calculations show that the disordered Pd-Zn nanocatalyst prepared by a low temperature route exhibits a change in the d-band center of Pd and Zn which in turn enhances the selectivity towards ethylene. TPD, XPS and a range of catalysis experiments provided in-depth insights into the reaction mechanism, indicating the key role of particle size, surface area, Pd-Zn interactions, and the capping agent.
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Affiliation(s)
- Garima Tiwari
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560 012, India
| | - Gunjan Sharma
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Mumbai, 400 005, India
| | - Rishi Verma
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Mumbai, 400 005, India
| | - Pooja Gakhad
- Materials Research Centre, Indian Institute of Science, Bangalore, 560 012, India
| | - Abhishek Kumar Singh
- Materials Research Centre, Indian Institute of Science, Bangalore, 560 012, India
| | - Vivek Polshettiwar
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Mumbai, 400 005, India
| | - Balaji R Jagirdar
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560 012, India
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Alshahrani H, Sharma G, Anand V, Gupta S, Sulaiman A, Elmagzoub MA, Reshan MSA, Shaikh A, Azar AT. An Intelligent Attention-Based Transfer Learning Model for Accurate Differentiation of Bone Marrow Stains to Diagnose Hematological Disorder. Life (Basel) 2023; 13:2091. [PMID: 37895472 PMCID: PMC10607952 DOI: 10.3390/life13102091] [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: 09/07/2023] [Revised: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
Bone marrow (BM) is an essential part of the hematopoietic system, which generates all of the body's blood cells and maintains the body's overall health and immune system. The classification of bone marrow cells is pivotal in both clinical and research settings because many hematological diseases, such as leukemia, myelodysplastic syndromes, and anemias, are diagnosed based on specific abnormalities in the number, type, or morphology of bone marrow cells. There is a requirement for developing a robust deep-learning algorithm to diagnose bone marrow cells to keep a close check on them. This study proposes a framework for categorizing bone marrow cells into seven classes. In the proposed framework, five transfer learning models-DenseNet121, EfficientNetB5, ResNet50, Xception, and MobileNetV2-are implemented into the bone marrow dataset to classify them into seven classes. The best-performing DenseNet121 model was fine-tuned by adding one batch-normalization layer, one dropout layer, and two dense layers. The proposed fine-tuned DenseNet121 model was optimized using several optimizers, such as AdaGrad, AdaDelta, Adamax, RMSprop, and SGD, along with different batch sizes of 16, 32, 64, and 128. The fine-tuned DenseNet121 model was integrated with an attention mechanism to improve its performance by allowing the model to focus on the most relevant features or regions of the image, which can be particularly beneficial in medical imaging, where certain regions might have critical diagnostic information. The proposed fine-tuned and integrated DenseNet121 achieved the highest accuracy, with a training success rate of 99.97% and a testing success rate of 97.01%. The key hyperparameters, such as batch size, number of epochs, and different optimizers, were all considered for optimizing these pre-trained models to select the best model. This study will help in medical research to effectively classify the BM cells to prevent diseases like leukemia.
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Affiliation(s)
- Hani Alshahrani
- Department of Computer Science, College of Computer Science and Information Systems, Najran University, Najran 66462, Saudi Arabia; (H.A.); (A.S.)
| | - Gunjan Sharma
- Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura 140401, India; (G.S.); (V.A.); (S.G.)
| | - Vatsala Anand
- Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura 140401, India; (G.S.); (V.A.); (S.G.)
| | - Sheifali Gupta
- Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura 140401, India; (G.S.); (V.A.); (S.G.)
| | - Adel Sulaiman
- Department of Computer Science, College of Computer Science and Information Systems, Najran University, Najran 66462, Saudi Arabia; (H.A.); (A.S.)
| | - M. A. Elmagzoub
- Department of Network and Communication Engineering, College of Computer Science and Information Systems, Najran University, Najran 61441, Saudi Arabia;
| | - Mana Saleh Al Reshan
- Department of Information Systems, College of Computer Science and Information Systems, Najran University, Najran 66462, Saudi Arabia; (M.S.A.R.); (A.S.)
| | - Asadullah Shaikh
- Department of Information Systems, College of Computer Science and Information Systems, Najran University, Najran 66462, Saudi Arabia; (M.S.A.R.); (A.S.)
| | - Ahmad Taher Azar
- College of Computer and Information Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
- Automated Systems and Soft Computing Lab (ASSCL), Prince Sultan University, Riyadh 11586, Saudi Arabia
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Sharma G, Tran TM, Bansal I, Beg MS, Bhardwaj R, Bassi J, Tan Y, Jaiswal AK, Tso C, Jain A, Singh J, Chattopadhyay P, Singh A, Chopra A, Bakhshi S, Casero D, Rao DS, Palanichamy JK. RNA binding protein IGF2BP1 synergizes with ETV6-RUNX1 to drive oncogenic signaling in B-cell Acute Lymphoblastic Leukemia. J Exp Clin Cancer Res 2023; 42:231. [PMID: 37670323 PMCID: PMC10478443 DOI: 10.1186/s13046-023-02810-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 08/27/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND Acute lymphoblastic leukemia (ALL) is the most common pediatric hematological malignancy, with ETV6::RUNX1 being the most prevalent translocation whose exact pathogenesis remains unclear. IGF2BP1 (Insulin-like Growth Factor 2 Binding Protein 1) is an oncofetal RNA binding protein seen to be specifically overexpressed in ETV6::RUNX1 positive B-ALL. In this study, we have studied the mechanistic role of IGF2BP1 in leukemogenesis and its synergism with the ETV6::RUNX1 fusion protein. METHODS Gene expression was analyzed from patient bone marrow RNA using Real Time RT-qPCR. Knockout cell lines were created using CRISPR-Cas9 based lentiviral vectors. RNA-Seq and RNA Immunoprecipitation sequencing (RIP-Seq) after IGF2BP1 pulldown were performed using the Illumina platform. Mouse experiments were done by retroviral overexpression of donor HSCs followed by lethal irradiation of recipients using a bone marrow transplant model. RESULTS We observed specific overexpression of IGF2BP1 in ETV6::RUNX1 positive patients in an Indian cohort of pediatric ALL (n=167) with a positive correlation with prednisolone resistance. IGF2BP1 expression was essential for tumor cell survival in multiple ETV6::RUNX1 positive B-ALL cell lines. Integrated analysis of transcriptome sequencing after IGF2BP1 knockout and RIP-Seq after IGF2BP1 pulldown in Reh cell line revealed that IGF2BP1 targets encompass multiple pro-oncogenic signalling pathways including TNFα/NFκB and PI3K-Akt pathways. These pathways were also dysregulated in primary ETV6::RUNX1 positive B-ALL patient samples from our center as well as in public B-ALL patient datasets. IGF2BP1 showed binding and stabilization of the ETV6::RUNX1 fusion transcript itself. This positive feedback loop led to constitutive dysregulation of several oncogenic pathways. Enforced co-expression of ETV6::RUNX1 and IGF2BP1 in mouse bone marrow resulted in marrow hypercellularity which was characterized by multi-lineage progenitor expansion and strong Ki67 positivity. This pre-leukemic phenotype confirmed their synergism in-vivo. Clonal expansion of cells overexpressing both ETV6::RUNX1 and IGF2BP1 was clearly observed. These mice also developed splenomegaly indicating extramedullary hematopoiesis. CONCLUSION Our data suggest a combined impact of the ETV6::RUNX1 fusion protein and RNA binding protein, IGF2BP1 in activating multiple oncogenic pathways in B-ALL which makes IGF2BP1 and these pathways as attractive therapeutic targets and biomarkers.
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Affiliation(s)
- Gunjan Sharma
- Department of Biochemistry, All India Institute of Medical Sciences, Room 4008, Convergence Block, New Delhi, 110029, India
| | - Tiffany M Tran
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Ishu Bansal
- Department of Biochemistry, All India Institute of Medical Sciences, Room 4008, Convergence Block, New Delhi, 110029, India
| | - Mohammad Sabique Beg
- Department of Biochemistry, All India Institute of Medical Sciences, Room 4008, Convergence Block, New Delhi, 110029, India
| | - Ruchi Bhardwaj
- Department of Biochemistry, All India Institute of Medical Sciences, Room 4008, Convergence Block, New Delhi, 110029, India
| | - Jaspal Bassi
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Yuande Tan
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Amit Kumar Jaiswal
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Christine Tso
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Ayushi Jain
- Department of Biochemistry, All India Institute of Medical Sciences, Room 4008, Convergence Block, New Delhi, 110029, India
| | - Jay Singh
- Department of Laboratory Oncology, Dr B.R Ambedkar Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India
| | - Parthaprasad Chattopadhyay
- Department of Biochemistry, All India Institute of Medical Sciences, Room 4008, Convergence Block, New Delhi, 110029, India
| | - Archna Singh
- Department of Biochemistry, All India Institute of Medical Sciences, Room 4008, Convergence Block, New Delhi, 110029, India
| | - Anita Chopra
- Department of Laboratory Oncology, Dr B.R Ambedkar Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India
| | - Sameer Bakhshi
- Department of Medical Oncology, Dr B.R Ambedkar Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India
| | - David Casero
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Dinesh S Rao
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Jayanth Kumar Palanichamy
- Department of Biochemistry, All India Institute of Medical Sciences, Room 4008, Convergence Block, New Delhi, 110029, India.
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Dinesh K, White N, Baker L, Sowden JE, Behrens-Spraggins S, Wood E, Charles J, Herrmann DN, Sharma G, Eichinger K. Disease-specific wearable sensor algorithms for profiling activity, gait, and balance in individuals with Charcot-Marie-Tooth disease type 1A. J Peripher Nerv Syst 2023; 28:368-381. [PMID: 37209301 DOI: 10.1111/jns.12562] [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: 03/20/2023] [Revised: 05/05/2023] [Accepted: 05/15/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND/AIMS Charcot-Marie-Tooth Disease type 1A (CMT1A), the most common inherited peripheral neuropathy, is characterized by progressive sensory loss and weakness, which results in impaired mobility. Increased understanding of the genetics and pathophysiology of CMT1A has led to development of potential therapeutic agents, necessitating clinical trial readiness. Wearable sensors may provide useful outcome measures for future trials. METHODS Individuals with CMT1A and unaffected controls were recruited for this 12-month study. Participants wore sensors for in-clinic assessments and at-home, from which activity, gait, and balance metrics were derived. Mann-Whitney U tests were used to analyze group differences for activity, gait, and balance parameters. Test-retest reliability of gait and balance parameters and correlations of these parameters with clinical outcome assessments (COAs) were examined. RESULTS Thirty individuals, 15 CMT1A, and 15 controls, participated. Gait and balance metrics demonstrated moderate to excellent reliability. CMT1A participants had longer step durations (p < .001), shorter step lengths (p = .03), slower gait speeds (p < .001), and greater postural sway (p < .001) than healthy controls. Moderate correlations were found between CMT-Functional Outcome Measure and step length (r = -0.59; p = .02), and gait speed (r = 0.64; p = .01); 11 out of 15 CMT1A participants demonstrated significant increases in stride duration between the first and last quarter of the 6-min walk test, suggesting fatigue. INTERPRETATION In this initial study, gait and balance metrics derived from wearable sensors were reliable and associated with COAs in individuals with CMT1A. Larger longitudinal studies are needed to confirm our findings and evaluate sensitivity and utility of these disease-specific algorithms for clinical trial use.
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Affiliation(s)
- K Dinesh
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, New York, USA
| | - N White
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
| | - L Baker
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
| | - J E Sowden
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
| | - S Behrens-Spraggins
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
| | - E Wood
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
| | - J Charles
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
| | - D N Herrmann
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
| | - G Sharma
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, New York, USA
| | - K Eichinger
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
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Sharma G, Ponzetti M, Siddiqui JA. Editorial: Bone metastasis in the milieu of osteoimmunology. Front Immunol 2023; 14:1265434. [PMID: 37614231 PMCID: PMC10442512 DOI: 10.3389/fimmu.2023.1265434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 07/26/2023] [Indexed: 08/25/2023] Open
Affiliation(s)
- Gunjan Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Marco Ponzetti
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila, Italy
| | - Jawed A. Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, United States
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Zubrycka A, Dambire C, Dalle Carbonare L, Sharma G, Boeckx T, Swarup K, Sturrock CJ, Atkinson BS, Swarup R, Corbineau F, Oldham NJ, Holdsworth MJ. ERFVII action and modulation through oxygen-sensing in Arabidopsis thaliana. Nat Commun 2023; 14:4665. [PMID: 37537157 PMCID: PMC10400637 DOI: 10.1038/s41467-023-40366-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 07/25/2023] [Indexed: 08/05/2023] Open
Abstract
Oxygen is a key signalling component of plant biology, and whilst an oxygen-sensing mechanism was previously described in Arabidopsis thaliana, key features of the associated PLANT CYSTEINE OXIDASE (PCO) N-degron pathway and Group VII ETHYLENE RESPONSE FACTOR (ERFVII) transcription factor substrates remain untested or unknown. We demonstrate that ERFVIIs show non-autonomous activation of root hypoxia tolerance and are essential for root development and survival under oxygen limiting conditions in soil. We determine the combined effects of ERFVIIs in controlling gene expression and define genetic and environmental components required for proteasome-dependent oxygen-regulated stability of ERFVIIs through the PCO N-degron pathway. Using a plant extract, unexpected amino-terminal cysteine sulphonic acid oxidation level of ERFVIIs was observed, suggesting a requirement for additional enzymatic activity within the pathway. Our results provide a holistic understanding of the properties, functions and readouts of this oxygen-sensing mechanism defined through its role in modulating ERFVII stability.
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Affiliation(s)
- Agata Zubrycka
- School of Biosciences, University of Nottingham, LE12 5RD, Loughborough, UK
| | - Charlene Dambire
- School of Biosciences, University of Nottingham, LE12 5RD, Loughborough, UK
| | - Laura Dalle Carbonare
- School of Biosciences, University of Nottingham, LE12 5RD, Loughborough, UK
- Department of Biology, University of Oxford, OX1 3RB, Oxford, UK
| | - Gunjan Sharma
- School of Biosciences, University of Nottingham, LE12 5RD, Loughborough, UK
| | - Tinne Boeckx
- School of Biosciences, University of Nottingham, LE12 5RD, Loughborough, UK
| | - Kamal Swarup
- School of Biosciences, University of Nottingham, LE12 5RD, Loughborough, UK
| | - Craig J Sturrock
- School of Biosciences, University of Nottingham, LE12 5RD, Loughborough, UK
| | - Brian S Atkinson
- School of Biosciences, University of Nottingham, LE12 5RD, Loughborough, UK
| | - Ranjan Swarup
- School of Biosciences, University of Nottingham, LE12 5RD, Loughborough, UK
| | - Françoise Corbineau
- UMR 7622 CNRS-UPMC, Biologie du développement, Institut de Biologie Paris Seine, Sorbonne Université, Paris, France
| | - Neil J Oldham
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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Tanuku SNR, Pinnaka AK, Behera S, Singh A, Pydi S, Vasudeva G, Vaidya B, Sharma G, Ganta SK, Garbhapu NS. Marinobacterium lacunae sp. nov. isolated from estuarine sediment. Arch Microbiol 2023; 205:294. [PMID: 37480395 DOI: 10.1007/s00203-023-03627-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/21/2023] [Accepted: 07/07/2023] [Indexed: 07/24/2023]
Abstract
A novel motile bacterium was isolated from a sediment sample collected in Kochi backwaters, Kerala, India. This bacterium is Gram negative, rod shaped, 1.0-1.5 µm wide, and 2.0-3.0 µm long. It was designated as strain AK27T. Colonies were grown on marine agar displayed circular, off-white, shiny, moist, translucent, flat, margin entire, 1-2 mm in diameter. The major fatty acids identified in this strain were C18:1 ω7c, C16:0, and summed in feature 3. The composition of polar lipids in the strain AK27T included phosphatidylglycerol, phosphatidylethanolamine, diphosphatidylglycerol, one unidentified amino lipid, two unidentified aminophospholipids, two unidentified phospholipids, and six unidentified lipids. The genomic DNA of strain AK27T exhibited a G+C content of 56.4 mol%. Based on the analysis of 16S rRNA gene sequence, strain AK27T showed sequence similarity to M. ramblicola D7T and M. zhoushanense WM3T as 98.99% and 98.58%, respectively. Compared to other type strains of the Marinobacterium genus, strain AK27T exhibited sequence similarities ranging from 91.7% to 96.4%. When compared to Marinobacterium zhoushanense WM3T and Marinobacterium ramblicola D7T, strain AK27T exhibited average nucleotide identity values of 80.25% and 79.97%, and dDDH values of 22.9% and 22.6%, respectively. The genome size of the strain AK27T was 4.55 Mb, with 4,229 coding sequences. Based on the observed phenotypic and chemotaxonomic features, and the results of phylogenetic and phylogenomic analysis, this study proposes the classification of strain AK27T as a novel species within the genus Marinobacterium. The proposed name for this novel species is Marinobacterium lacunae sp. nov.
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Affiliation(s)
- Srinivas Naga Radha Tanuku
- CSIR-National Institute of Oceanography, Regional Centre, 176, Lawsons Bay Colony, Visakhapatnam, 530017, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
| | - Anil Kumar Pinnaka
- MTCC-Microbial Type Culture Collection & Gene Bank, CSIR-Institute of Microbial Technology, Chandigarh, 160036, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Swarnaprava Behera
- CSIR-National Institute of Oceanography, Regional Centre, 176, Lawsons Bay Colony, Visakhapatnam, 530017, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Aditya Singh
- MTCC-Microbial Type Culture Collection & Gene Bank, CSIR-Institute of Microbial Technology, Chandigarh, 160036, India
| | - Sudharani Pydi
- CSIR-National Institute of Oceanography, Regional Centre, 176, Lawsons Bay Colony, Visakhapatnam, 530017, India
| | - Gunjan Vasudeva
- MTCC-Microbial Type Culture Collection & Gene Bank, CSIR-Institute of Microbial Technology, Chandigarh, 160036, India
| | - Bhumika Vaidya
- MTCC-Microbial Type Culture Collection & Gene Bank, CSIR-Institute of Microbial Technology, Chandigarh, 160036, India
| | - Gunjan Sharma
- MTCC-Microbial Type Culture Collection & Gene Bank, CSIR-Institute of Microbial Technology, Chandigarh, 160036, India
| | - Sampath Kumar Ganta
- CSIR-National Institute of Oceanography, Regional Centre, 176, Lawsons Bay Colony, Visakhapatnam, 530017, India
| | - Naveen Sagar Garbhapu
- CSIR-National Institute of Oceanography, Regional Centre, 176, Lawsons Bay Colony, Visakhapatnam, 530017, India
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Singh J, Benjamin M, Pandey AK, Kumari S, Ali MS, Palanichamy JK, Bakhshi S, Singh A, Pushpam D, Kumar A, Seth R, Singh I, Tanwar P, Singh AR, Sharma G, Arora M, Chopra A. Prognostic relevance of surface expression of cytokine receptor-like factor 2 in pediatric B-lineage acute lymphoblastic leukemia. Am J Cancer Res 2023; 13:2452-2470. [PMID: 37424808 PMCID: PMC10326580] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 03/23/2023] [Indexed: 07/11/2023] Open
Abstract
Overexpression of cytokine receptor-like factor 2 (CRLF2) resulting from its genomic rearrangement is the most frequent genetic alteration found in Philadelphia chromosome-like (Ph-like) B-cell acute lymphoblastic leukemia (B-ALL), a high-risk leukemia. Detection of CRLF2 expression by multiparameter flow cytometry has been proposed as a screening tool for the identification of Ph-like B-ALL. However, the prognostic relevance of flow cytometric expression of CRLF2 in pediatric B-ALL is not very clear. Additionally, its association with common copy number alterations (CNA) has not been studied in detail. Hence, in this study, we prospectively evaluated the flow cytometric expression of CRLF2 in 256 pediatric B-ALL patients and determined its association with molecular features such as common CNAs detected using Multiplex ligation-dependent probe amplification and mutations in CRLF2, JAK2 and IL7RA genes. Further, its association with clinicopathological features including patient outcome was assessed. We found that 8.59% (22/256) pediatric B-ALL patients were CRLF2-positive at diagnosis. Among CNAs, CRLF2 positivity was associated with presence of PAX5 alteration (P=0.041). JAK2 and IL-7R mutations were found in 9% and 13.6% CRLF2-positive patients, respectively. IGH::CRLF2 or P2RY8::CRLF2 fusions were each found in 1/22 individuals. CRLF2-positive patients were found to have inferior overall (hazard ratio (HR) =4.39, P=0.006) and event free survival (HR=2.62, P=0.045), independent to other clinical features. Furthermore, concomitant CNA of IKZF1 in CRLF2 positive patients was associated with a greater hazard for poor overall and event free survival, compared to patients without these alterations or presence of any one of them. Our findings demonstrate that the surface CRLF2 expression in association with IKZF1 copy number alteration can be used to risk stratify pediatric B-ALL patients.
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Affiliation(s)
- Jay Singh
- Laboratory Oncology, AIIMSNew Delhi, India
| | | | | | | | | | | | | | - Amitabh Singh
- Department of Pediatrics, Safdarjung HospitalNew Delhi, India
| | | | - Akash Kumar
- Department of Medical Oncology, AIIMSNew Delhi, India
| | - Rachna Seth
- Department of Pediatrics, AIIMSNew Delhi, India
| | - Inder Singh
- Department of Neurology, AIIMSNew Delhi, India
| | | | | | | | - Mohit Arora
- Department of Biochemistry, AIIMSNew Delhi, India
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19
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Palanichamy JK, Tran TM, King JK, Katzman S, Ritter AJ, Sharma G, Tso C, Contreras JR, Fernando TR, Sanford JR, Rao DS. Distinct oncogenic phenotypes in hematopoietic specific deletions of Trp53. Sci Rep 2023; 13:7490. [PMID: 37160922 PMCID: PMC10169790 DOI: 10.1038/s41598-023-33949-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 04/21/2023] [Indexed: 05/11/2023] Open
Abstract
Loss of function in the tumor suppressor gene TP53 is the most common alteration seen in human cancer. In mice, P53 deletion in all cells leads predominantly to the development of T-cell lymphomas, followed by B-cell lymphomas, sarcomas and teratomas. In order to dissect the role of P53 in the hematopoietic system, we generated and analyzed two different mouse models deficient for P53. A pan-hematopoietic P53 deletion mouse was created using Vav1-Cre based deletion; and a B-cell-specific deletion mouse was created using a CD19-Cre based deletion. The Vav1-P53CKO mice predominantly developed T-cell malignancies in younger mice, and myeloid malignancies in older mice. In T-cell malignancies, there was accelerated thymic cell maturation with overexpression of Notch1 and its downstream effectors. CD19-P53CKO mice developed marginal zone expansion in the spleen, followed by marginal zone lymphoma, some of which progressed to diffuse large B-cell lymphomas. Interestingly, marginal zone and diffuse large B-cell lymphomas had a unique gene expression signature characterized by activation of the PI3K pathway, compared with wild type marginal zone or follicular cells of the spleen. This study demonstrates lineage specific P53 deletion leading to distinct phenotypes secondary to unique gene expression programs set in motion.
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Affiliation(s)
| | - Tiffany M Tran
- Department of Pathology and Laboratory Medicine, UCLA, Los Angeles, USA
- Molecular, Cellular and Integrative Physiology Graduate Program, UCLA, Los Angeles, USA
| | | | - Sol Katzman
- Center for Biomolecular Science & Engineering, UCSC, Santa Cruz, USA
| | - Alexander J Ritter
- Department of Molecular, Cell and Developmental Biology and Center for Molecular Biology of RNA, UCSC, Santa Cruz, USA
| | - Gunjan Sharma
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Christine Tso
- Department of Pathology and Laboratory Medicine, UCLA, Los Angeles, USA
| | - Jorge R Contreras
- Department of Pathology and Laboratory Medicine, UCLA, Los Angeles, USA
| | | | - Jeremy R Sanford
- Department of Molecular, Cell and Developmental Biology and Center for Molecular Biology of RNA, UCSC, Santa Cruz, USA
| | - Dinesh S Rao
- Department of Pathology and Laboratory Medicine, UCLA, Los Angeles, USA.
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, USA.
- Broad Stem Cell Research Center, UCLA, Los Angeles, USA.
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, 650 Charles E Young Drive, Los Angeles, CA, 90095, USA.
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20
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Deepak D, Upadhyay RK, Sankaran KJ, Banerjee D, Choudhury S, Sharma G, Roy SS. Surfactant gel-based method: A universal soft method for the exfoliation of 2D materials. J Colloid Interface Sci 2023; 645:906-917. [PMID: 37178567 DOI: 10.1016/j.jcis.2023.04.125] [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: 01/23/2023] [Revised: 04/14/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023]
Abstract
HYPOTHESIS Fluidic micelles and reverse micelles have served as exfoliation mediums. However, an additional force, such as extended sonication, is required. Gelatinous cylindrical micelles that are formed once desired conditions are achieved can be an ideal medium for the quick exfoliation of 2D materials without the need for any external force. The quick formation of gelatinous cylindrical micelles can rip off layers from the 2D materials suspended in the mixture leading to the quick exfoliation of 2D materials. EXPERIMENTS Herein, we introduce a quick universal method capable of delivering high-quality exfoliated 2D materials cost-effectively using CTAB-based gelatinous micelles as an exfoliation medium. The approach is devoid of harsh treatment, such as prolonged sonication and heating, and a quick exfoliation of 2D materials is completed using this approach. FINDINGS We successfully exfoliated four 2D materials (MoS2, Graphene, WS2, and BN) and investigated their morphology, chemical, and crystal structure along with optical and electrochemical properties to probe the quality of the exfoliated product. Results revealed that the proposed method is highly efficient in exfoliating 2D materials in a quick time without causing any significant damage to the mechanical integrity of the exfoliated materials.
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Affiliation(s)
- Deepak Deepak
- Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence (SNIoE), NH-91, Greater Noida, Uttar Pradesh 201314, India
| | - Ravi Kant Upadhyay
- Department of Mechanical Engineering, Indian Institute of Technology, Ropar, Punjab 140001, India.
| | | | - Debosmita Banerjee
- Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence (SNIoE), NH-91, Greater Noida, Uttar Pradesh 201314, India
| | - Sudipta Choudhury
- Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence (SNIoE), NH-91, Greater Noida, Uttar Pradesh 201314, India
| | - Gunjan Sharma
- Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence (SNIoE), NH-91, Greater Noida, Uttar Pradesh 201314, India
| | - Susanta Sinha Roy
- Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence (SNIoE), NH-91, Greater Noida, Uttar Pradesh 201314, India.
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Sharma G, Vela R, Powell L, Malloy C, Jessen M, Peltz M. Metabolic Analysis of Human Hearts Preserved with a Novel Hypothermic Perfusion System. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1696] [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: 04/05/2023] Open
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22
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Britan-Rosich Y, Ma J, Kotler E, Hassan F, Botvinnik A, Smith Y, Moshel O, Nasereddin A, Sharma G, Pikarsky E, Ross S, Kotler M. APOBEC3G protects the genome of human cultured cells and mice from radiation-induced damage. FEBS J 2023; 290:1822-1839. [PMID: 36325681 PMCID: PMC10079569 DOI: 10.1111/febs.16673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 09/14/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022]
Abstract
Cytosine deaminases AID/APOBEC proteins act as potent nucleic acid editors, playing important roles in innate and adaptive immunity. However, the mutagenic effects of some of these proteins compromise genomic integrity and may promote tumorigenesis. Here, we demonstrate that human APOBEC3G (A3G), in addition to its role in innate immunity, promotes repair of double-strand breaks (DSBs) in vitro and in vivo. Transgenic mice expressing A3G successfully survived lethal irradiation, whereas wild-type controls quickly succumbed to radiation syndrome. Mass spectrometric analyses identified the differential upregulation of a plethora of proteins involved in DSB repair pathways in A3G-expressing cells early following irradiation to facilitate repair. Importantly, we find that A3G not only accelerates DSB repair but also promotes deamination-dependent error-free rejoining. These findings have two implications: (a) strategies aimed at inhibiting A3G may improve the efficacy of genotoxic therapies used to cure malignant tumours; and (b) enhancing A3G activity may reduce acute radiation syndrome in individuals exposed to ionizing radiation.
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Affiliation(s)
- Yelena Britan-Rosich
- Department of Pathology and Immunology, The Lautenberg Center for Immunology and Cancer Research, The Hebrew University Hadassah Medical School, Jerusalem, Israel
| | - Jing Ma
- Department of Microbiology and Immunology, College of Medicine, University of Illinois at Chicago, USA
| | - Eran Kotler
- Department of Genetics, Stanford University School of Medicine, Ca, USA
| | - Faizan Hassan
- Department of Pathology and Immunology, The Lautenberg Center for Immunology and Cancer Research, The Hebrew University Hadassah Medical School, Jerusalem, Israel
| | - Alexander Botvinnik
- Department of Pathology and Immunology, The Lautenberg Center for Immunology and Cancer Research, The Hebrew University Hadassah Medical School, Jerusalem, Israel
| | - Yoav Smith
- Genomic Data Analysis, Hadassah Medical School, Hebrew University, Jerusalem, Israel
| | - Ofra Moshel
- Core Research Facility, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Abed Nasereddin
- Core Research Facility of the Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Gunjan Sharma
- Department of Pathology and Immunology, The Lautenberg Center for Immunology and Cancer Research, The Hebrew University Hadassah Medical School, Jerusalem, Israel
| | - Eli Pikarsky
- Department of Pathology and Immunology, The Lautenberg Center for Immunology and Cancer Research, The Hebrew University Hadassah Medical School, Jerusalem, Israel
| | - Susan Ross
- Department of Microbiology and Immunology, College of Medicine, University of Illinois at Chicago, USA
| | - Moshe Kotler
- Department of Pathology and Immunology, The Lautenberg Center for Immunology and Cancer Research, The Hebrew University Hadassah Medical School, Jerusalem, Israel
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Sharma G, Vela R, Powell L, Mizerska M, Deja S, Burgess S, Malloy C, Jessen M, Peltz M. Metabolic Indicators in Donor Hearts Following Conventional and Temperature Controlled Storage. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.883] [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: 04/05/2023] Open
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Sharma G, Mitra S, Kamil SM, Ghosh SK. Shear-induced phase transition in the aqueous solution of an imidazolium-based ionic liquid. J Chem Phys 2023; 158:094904. [PMID: 36889950 DOI: 10.1063/5.0138078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
An ionic liquid (IL) is a salt in the liquid state that consists of a cation and an anion, one of which possesses an organic component. Because of their non-volatile property, these solvents have a high recovery rate, and, hence, they are considered as environment-friendly green solvents. It is necessary to study the detailed physicochemical properties of these liquids for designing and processing techniques and find suitable operating conditions for IL-based systems. In the present work, the flow behavior of aqueous solutions of an imidazolium-based IL, 1-methyl-3-octylimidazolium chloride, is investigated, where the dynamic viscosity measurements indicate non-Newtonian shear thickening behavior in the solutions. Polarizing optical microscopy shows that the pristine samples are isotropic and transform into anisotropic after shear. These shear thickened liquid crystalline samples change into an isotropic phase upon heating, which is quantified by the differential scanning calorimetry. The small angle x-ray scattering study revealed that the pristine isotropic cubic phase of spherical micelles distort into non-spherical micelles. This has provided the detailed structural evolution of mesoscopic aggregates of the IL in an aqueous solution and the corresponding viscoelastic property of the solution.
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Affiliation(s)
- Gunjan Sharma
- Department of Physics, School of Natural Sciences, Shiv Nadar University, NH 91, Tehsil Dadri, G.B. Nagar, Uttar Pradesh 201314, India
| | - Saheli Mitra
- Department of Physics, School of Natural Sciences, Shiv Nadar University, NH 91, Tehsil Dadri, G.B. Nagar, Uttar Pradesh 201314, India
| | - Syed Mohammad Kamil
- Department of Physics, School of Natural Sciences, Shiv Nadar University, NH 91, Tehsil Dadri, G.B. Nagar, Uttar Pradesh 201314, India
| | - Sajal Kumar Ghosh
- Department of Physics, School of Natural Sciences, Shiv Nadar University, NH 91, Tehsil Dadri, G.B. Nagar, Uttar Pradesh 201314, India
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Alam K, Sharma G, Forrester JV, Basu S. Antigen-Specific Intraocular Cytokine Responses Distinguish Ocular Tuberculosis From Undifferentiated Uveitis in Tuberculosis-Immunoreactive Patients. Am J Ophthalmol 2023; 246:31-41. [PMID: 36087765 DOI: 10.1016/j.ajo.2022.08.029] [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: 05/10/2022] [Revised: 08/28/2022] [Accepted: 08/30/2022] [Indexed: 01/24/2023]
Abstract
PURPOSE To compare antigen-specific intraocular immune responses between different clinical phenotypes of tuberculin skin test (TST)-positive and TST-negative uveitis. DESIGN Single center, retrospective cross-sectional study. METHODS Patients requiring diagnostic or therapeutic vitrectomy for the management of intraocular inflammation were divided into 3 groups based on Standardization of Uveitis Nomenclature (SUN) classification criteria for tubercular uveitis. Group 1 included patients with ocular tuberculosis (OTB; n = 23) who were TST-positive patients, met the SUN criteria, and/or had a polymerase chain reaction (PCR)-positive test for TB. Group 2 included patients with uveitis of unknown origin (UNK; n = 24) who were undifferentiated TST-positive patients who had not met SUN criteria. Group 3 included non-TB uveitis patients (n = 24) who were TST-negative either with or without a well-defined non-TB diagnosis. Total vitreous cells were activated with Mycobacterium tuberculosis-specific Early Secreted Antigenic Target-6 (ESAT-6) or the retinal autoantigen, interphotoreceptor retinoid-binding protein peptide (pIRBP 1-20), stained for intracellular interferon gamma (IFNγ), tumor necrosis factor-alfa (TNFα), and interleukin 17 (IL-17), and analyzed by flow cytometry. Antigen-specific single and dual (polyfunctional) cytokine responses to ESAT-6 and IRBP were compared between the 3 groups. RESULTS All cytokine responses to ESAT-6 were higher in the UNK group compared with the non-TB control subjects, while all except IL-17 were comparable between the OTB and non-TB groups. Polyfunctional responses-IFNγ/IL-17 (P = .002), TNFα/IL-17 (P = .02), and TNFα/IFNγ (P = .01)-were significantly greater for UNK than the OTB group. Polyfunctional cells also produced more cytokine per cell than respective monofunctional cells. IRBP cytokine responses were comparable between different groups and were not affected by the clinical phenotype or duration of disease. CONCLUSION The intraocular polyfunctional cytokine response is stronger in undifferentiated TST-positive uveitis than in OTB patients, likely representing an exaggerated anti-TB immune response rather than active infection.
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Affiliation(s)
- Kaiser Alam
- Ocular Immunology Laboratory, Prof Brien Holden Eye Research Centre, LV Prasad Eye Institute, Kallam Anji Reddy Campus, Hyderabad, India
| | - Gunjan Sharma
- Ocular Immunology Laboratory, Prof Brien Holden Eye Research Centre, LV Prasad Eye Institute, Kallam Anji Reddy Campus, Hyderabad, India; Multi-disciplinary Research Unit, Nizam's Institute of Medical Sciences, Hyderabad, India
| | - John V Forrester
- Ocular Immunology Group, Section of Infection and Immunity, Institute of Medical Sciences, University of Aberdeen, Aberdeen, United Kingdom
| | - Soumyava Basu
- Ocular Immunology Laboratory, Prof Brien Holden Eye Research Centre, LV Prasad Eye Institute, Kallam Anji Reddy Campus, Hyderabad, India; Uveitis Service, LV Prasad Eye Institute, Kallam Anji Reddy Campus, Hyderabad, India.
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Prasad S, Sharma G, Devana SK, Kumar S, Sharma S. Is tranexamic acid associated with decreased need for blood transfusion in percutaneous nephrolithotomy: a systematic review and meta-analysis. Ann R Coll Surg Engl 2023; 105:99-106. [PMID: 36720263 PMCID: PMC9889173 DOI: 10.1308/rcsann.2021.0259] [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] [Accepted: 08/03/2021] [Indexed: 02/03/2023] Open
Abstract
INTRODUCTION Bleeding is a common complication after percutaneous nephrolithotomy (PNL) for renal stone disease. Tranexamic acid (TXA) has been found to reduce mortality and blood transfusion in surgical and trauma patients. This review aimed to assess the safety and efficacy of TXA in patients undergoing PNL. METHODS A systematic literature review was performed to recognise all randomised controlled trials (RCTs) comparing the use of TXA in PNL. The primary outcome of the study was to compare the need for blood transfusion with and without TXA. FINDINGS Six RCTs with 1,323 patients were included in this review. Haemoglobin fall was lower in the TXA group compared with the control group, and the need for blood transfusion was reduced by 67% (odds ratio (OR) 0.33, confidence interval (CI) (0.21, 0.52), p<0.00001). However, blood loss was comparable for the two groups (mean difference -116.9, CI (-244.5,10.7) p=0.07). Length of stay and duration of surgery was significantly shorter with TXA. Furthermore, both minor and major complications were lower in the TXA group. Stone-free rate was higher with the TXA group. No thromboembolic complications were noted in the TXA group. CONCLUSIONS TXA is safe and efficacious for PNL with a reduction in need for blood transfusion and without an attending increase in complication rates.
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Affiliation(s)
- S Prasad
- MM Institute of Medical Sciences and Research, Ambala, India
| | | | | | | | - S Sharma
- VMMC and Safdarjung Hospital, New Delhi, India
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Sharma G, Shah M, Ahluwalia P, Gautam G, Dasgupta P, Challacombe B, Bhandari M, Ahlawat R, Rawal S, Buffi N, Sivaraman A, Porter J, Rogers C, Mottire, Abaza R, Rha K, Moon D, Yuvaraja T, Parekh D, Capitanio U, Maes K, Porpiglia F, Turkeri L. Off-clamp versus on-clamp robot-assisted partial nephrectomy: A propensity-matched analysis. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01060-6] [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: 02/12/2023]
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Sharma G, Sharma R, Saxena R, Rajni E, Prakash Mamoria V. [Pharmacological importance of novel spiro derivatives against human pathogenic fungi]. Biomed Khim 2023; 69:55-61. [PMID: 36857427 DOI: 10.18097/pbmc20236901055] [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] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Human mycoses have become a threat to health world-wide. Unfortunately there are only a limited number of antimycotic drugs in use. In the present study, antifungal activity of earlier synthesized spiro-1,4-dihydropyridines (1,4-DHPs) was investigated. The antifungal activity of spiro-1,4-DHPs compounds were screened against Aspergillus flavus, A. fumigatus, and Candida albicans by using Disc Diffusion and Modified Microdilution method. Among six spiro-1,4-DHPs compounds tested all of them showed stronger antifungal activity possibly through inhibiting the synthesis of chitin in cell wall against A. flavus, A. fumigatus, and C. albicans as compared to fluconazole, a standard antifungal drug. The combination of compounds showed that the synthesized compounds had synergistic, additive effects as compared to currently used drugs as an antifungal agent. These results indicated that these designed compounds were potential chitin synthase inhibitors and had excellent antimycotic activity for the treatment of fungal infections.
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Affiliation(s)
- G Sharma
- Department of Chemistry, MPS International, Jaipur, Rajasthan, India
| | - R Sharma
- Department of Microbiology, Mahatma Gandhi University of Medical Sciences and Technology, Jaipur, Rajasthan, India
| | - R Saxena
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh, India
| | - E Rajni
- Department of Microbiology, Mahatma Gandhi University of Medical Sciences and Technology, Jaipur, Rajasthan, India
| | - V Prakash Mamoria
- Department of Microbiology, Mahatma Gandhi University of Medical Sciences and Technology, Jaipur, Rajasthan, India
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Sharma AK, Mukherjee M, Kumar A, Sharma G, Tabassum F, Akhtar MS, Imam MT, Almalki ZS. Preliminary investigation on impact of intergenerational treatment of resveratrol endorses the development of 'super-pups'. Life Sci 2023; 314:121322. [PMID: 36574941 DOI: 10.1016/j.lfs.2022.121322] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/12/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022]
Abstract
BACKGROUND Redox biology balances free radical generation and scavenging systems, whereas an imbalanced cellular redox can hasten the onset of various diseases and be regarded as a Pandora's box of ailments. The current study aims to assess the pathophysiological impact of intergenerational resveratrol treatment on diabetes-related cognitive and cardio-renal disorders. MATERIAL AND METHOD Diabetic rats of the first, second, and third generations were subjected to an intergenerational treatment of resveratrol (20 mg/kg/p.o./day) for 5 months. During this period, the second generation of animals (pups of the first generation) was produced. After the adulthood of second-generation rats, they used to produce third-generation rats. The rats of each generation were evaluated for physiological parameters (BMI, litter size, and life expectancy) and the pathological impact of streptozotocin (55 mg/kg/i.p.), cognitive dysfunctions, and cardio-renal injury. RESULTS The intergenerational treatment of resveratrol significantly reduced litter size and improved anthropometric parameters, life expectancy, and blood glucose levels in diabetic animals. Resveratrol treatment ameliorates oxidative stress as measured by increased serum nitrite/nitrate concentrations, SOD activity, reduced glutathione concentrations, total serum antioxidant capacity, and diminished serum TBARS level in diabetic animals. Furthermore, diabetic rats receiving intergenerational resveratrol treatment showed improved cognitive behaviour and cardio-renal functionality when compared to the disease control group. CONCLUSION The intergenerational treatment of resveratrol improved the physiological traits and vital abilities of the heart, kidney, and brain, which endorse its antioxidant potential. Surprisingly, resveratrol treatment increases the second and third generations' resistance to neurobehavioral changes, diabetes, and -associated cardio-renal dysfunction, implying that these generations are "super-pups."
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Affiliation(s)
- Arun K Sharma
- Department of Cardiovascular Pharmacology, Amity Institute of Pharmacy, Amity University, Gurugram, Haryana 122413, India.
| | - Monalisa Mukherjee
- Molecular Sciences and Engineering Laboratory, Amity Institute of Click Chemistry Research and Studies, Amity University, Noida, Uttar Pradesh 201303, India; Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, Uttar Pradesh 201303, India
| | - Ashish Kumar
- Department of Cardiovascular Pharmacology, Amity Institute of Pharmacy, Amity University, Gurugram, Haryana 122413, India
| | - Gunjan Sharma
- Department of Pharmacology, Delhi Pharmaceutical Sciences and Research University, New Delhi 110017, India
| | - Fauzia Tabassum
- Department of Pharmacology, College of Dentistry and Pharmacy, Buraydah Private College, Al Qassim 51418, Saudi Arabia
| | - Md Sayeed Akhtar
- Department of Clinical Pharmacy, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia
| | - Mohammad Tarique Imam
- Department of Clinical Pharmacy, College of Pharmacy, Prince Sattam Bin Abdul Aziz University, Al-Kharj 11942, Saudi Arabia
| | - Ziyad Saeed Almalki
- Department of Clinical Pharmacy, College of Pharmacy, Prince Sattam Bin Abdul Aziz University, Al-Kharj 11942, Saudi Arabia
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Baharia RK, Kaur J, Sindhania A, Sharma G, Srivastava HC, Pant CS, Rahi M, Raghavendra K, Singh OP. Bionomics of Anopheles culicifacies Sensu Lato in two Malaria Endemic Districts of Central Gujarat, India. J Arthropod Borne Dis 2023; 16:108-123. [PMID: 37038509 PMCID: PMC10082408 DOI: 10.18502/jad.v16i2.11802] [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: 12/20/2020] [Accepted: 04/26/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Gujarat State has been witnessing large scale urbanization, in last two decades, resulting changes in local environment and microclimate may have also influenced the resting, feeding habits and development of Anopheles culicifacies sensu 1ato. Therefore, a systematic longitudinal study was undertaken to know the bionomics of An. culicifacies s.l. in present study.
Methods: The study was conducted in four sentinel villages in Kheda and Panchmahal Districts. The mosquitoes resting indoors and outdoors were collected in early morning hours, using mouth aspirator, pyrethrum space spray and light traps. Mosquito landing collections on human volunteers was carried out from dusk to dawn. Species composition, abundance, seasonal prevalence, resting behavior (Endophily and Exophily), sibling species composition, vector potential and insecticide susceptibility status of malaria vectors was studied.
Results: Six Anopheles species were collected, An. subpictus s.l. was the predominant species followed by An. culicifacies s.l., a known malaria vector was resting indoor and zoophagic behaviour. Anopheles culicifacies, sibling species B (89%) was found. The sporozoite rate (%) and entomological inoculation rate in Kheda was 2.33%, 3.09 per bite/ person/annum and they were 1.05% and 0.475 bite/person/annum in Panchmahal, respectively. Anopheles culicifacies s.l. was found possible resistance to alpha-cypermethrin.
Conclusion: Anopheles culicifacies s.l. showed endophillic, zoophagic behaviour and found possible resistance to alpha-cypermethrin. Early biting behaviour of An. culicifacies s.l. in this area is a cause of concern. Therefore, there is need for frequent monitoring and evaluation of vector control measures in order to achieve the elimination target of malaria in this area.
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Affiliation(s)
- Rajendra K Baharia
- Indian Council of Medical Research (ICMR)-National Institute of Malaria Research, Field unit, Civil Hospital Nadiad, Gujarat, India
- Corresponding author: Dr Rajendra Kumar Baharia, E-mail:
| | - Jaspreet Kaur
- Indian Council of Medical Research (ICMR)-National Institute of Malaria Research, Dwarka Secctor-8, New Delhi, India
| | - Ankita Sindhania
- Indian Council of Medical Research (ICMR)-National Institute of Malaria Research, Dwarka Secctor-8, New Delhi, India
| | - Gunjan Sharma
- Indian Council of Medical Research (ICMR)-National Institute of Malaria Research, Dwarka Secctor-8, New Delhi, India
| | - Harish C Srivastava
- Indian Council of Medical Research (ICMR)-National Institute of Malaria Research, Field unit, Civil Hospital Nadiad, Gujarat, India
| | - Chandra S Pant
- Indian Council of Medical Research (ICMR)-National Institute of Malaria Research, Field unit, Civil Hospital Nadiad, Gujarat, India
| | - Manju Rahi
- Indian Council of Medical Research (ICMR), Division of Epidemiology and Communicable Diseases, Ansari Nagar, New Delhi, India
| | - Kamaraju Raghavendra
- Indian Council of Medical Research (ICMR)-National Institute of Malaria Research, Dwarka Secctor-8, New Delhi, India
| | - Om P Singh
- Indian Council of Medical Research (ICMR)-National Institute of Malaria Research, Dwarka Secctor-8, New Delhi, India
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Sharma G, Dal Col J, Siddiqui JA. Editorial: Rising stars in molecular and cellular oncology 2022. Front Oncol 2023; 13:1136335. [PMID: 36761974 PMCID: PMC9903174 DOI: 10.3389/fonc.2023.1136335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 01/12/2023] [Indexed: 01/26/2023] Open
Affiliation(s)
- Gunjan Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Jessica Dal Col
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana, University of Salerno, Salerno, Italy
| | - Jawed Akhtar Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, United States,Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, United States,*Correspondence: Jawed Akhtar Siddiqui,
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Singh OP, Kaur T, Sharma G, Kona MP, Mishra S, Kapoor N, Mallick PK. Molecular Tools for Early Detection of Invasive Malaria Vector Anopheles stephensi Mosquitoes. Emerg Infect Dis 2023; 29:36-44. [PMID: 36573521 PMCID: PMC9796203 DOI: 10.3201/eid2901.220786] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Reports of the expansion of the Asia malaria vector Anopheles stephensi mosquito into new geographic areas are increasing, which poses a threat to the elimination of urban malaria. Efficient surveillance of this vector in affected areas and early detection in new geographic areas is key to containing and controlling this species. To overcome the practical difficulties associated with the morphological identification of immature stages and adults of An. stephensi mosquitoes, we developed a species-specific PCR and a real-time PCR targeting a unique segment of the second internal transcribed spacer lacking homology to any other organism. Both PCRs can be used to identify An. stephensi mosquitoes individually or in pooled samples of mixed species, including when present in extremely low proportions (1:500). This study also reports a method for selective amplification and sequencing of partial ribosomal DNA from An. stephensi mosquitoes for their confirmation in pooled samples of mixed species.
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Sharma G, Barbieri I, Blandino G, Poli V, Siddiqui JA. Editorial: Roles of non-coding RNAs in tumor growth and development. Front Oncol 2022; 12:1098315. [DOI: 10.3389/fonc.2022.1098315] [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] [Received: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 12/02/2022] Open
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Liu DT, Prem B, Sharma G, Kaiser J, Besser G, Mueller CA. Eating behavior in patients with smell loss. Front Nutr 2022; 9:993639. [DOI: 10.3389/fnut.2022.993639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 10/20/2022] [Indexed: 11/10/2022] Open
Abstract
BackgroundThe objective of this study was to determine how clinical characteristics and validated quality of life (QoL)-measures are associated with eating behavior in patients with olfactory dysfunction (OD).MethodsFor this cross-sectional study, 150 OD patients of different causes were retrospectively recruited. Olfactory function was measured using the Sniffin’ Sticks (TDI), while olfactory-related QoL was evaluated with the Questionnaire of OD negative and positive statements (QOD-NS and QOD-PS). The importance of olfaction was measured using the Importance of Olfaction Questionnaire (IOQ). The Dutch Eating Behavior Questionnaire (DEBQ) assessed eating behavior based on emotional, external, and restrained eating. Associations were sought between eating behavior metrics (as dependent variables) with clinical characteristics and olfactory-related outcome measures.ResultsEmotional, external, and restrained eating behavior deviating from normative standards were reported in 54%, 71.3%, and 68% of patients, respectively. Multivariate regression modeling revealed that emotional eating was associated with age (ß = –0.227, p = 0.032), the body mass index (BMI, ß = 0.253, p = 0.005), the TDI (ß = 0.190, p = 0.046), and the QOD-NS (ß = 0.203, p = 0.049). External eating was associated with OD duration (ß = 0.291, p = 0.005), the TDI (ß = 0.225, p = 0.018), the QOD-PS (ß = –0.282, p = 0.008), and the IOQ (ß = 0.277, p = 0.004). Restrained eating was associated with age (ß = 0.216, p = 0.033), the BMI (ß = 0.257, p = 0.003), male gender (ß = –0.263, p = 0.002), and the IOQ (ß = 0.332, p < 0.001).ConclusionClinical characteristics and olfactory outcome measures differentially impact eating styles in OD patients. Our study’s results highlight the importance of considering unfavorable changes in eating behavior during clinical counseling.
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Mughees M, Kaushal JB, Sharma G, Wajid S, Batra SK, Siddiqui JA. Chemokines and cytokines: Axis and allies in prostate cancer pathogenesis. Semin Cancer Biol 2022; 86:497-512. [PMID: 35181473 PMCID: PMC9793433 DOI: 10.1016/j.semcancer.2022.02.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 01/27/2023]
Abstract
Chemokines are recognized as the major contributor to various tumorigenesis, tumor heterogeneity, and failures of current cancer therapies. The tumor microenvironment (TME) is enriched with chemokines and cytokines and plays a pivotal role in cancer progression. Chronic inflammation is also considered an instructive process of cancer progression, where chemokines are spatiotemporally secreted by malignant cells and leukocyte subtypes that initiate cell trafficking into the TME. In various cancers, prostate cancer (PCa) is reported as one of the leading cancers in the worldwide male population. The chemokines-mediated signaling pathways are intensively involved in PCa progression and metastasis. Emerging evidence suggests that chemokines and cytokines are responsible for the pleiotropic actions in cancer, including the growth, angiogenesis, endothelial mesenchymal transition, leukocyte infiltration, and hormone escape for advanced PCa and therapy resistance. Chemokine's system and immune cells represent a promising target to suppress tumorigenic environments and serve as potential therapy/immunotherapy for the PCa. In this review, an attempt has been made to shed light on the alteration of chemokine and cytokine profiles during PCa progression and metastasis. We also discussed the recent findings of the diverse molecular signaling of these circulating chemokines and their corresponding receptors that could become future targets for therapeutic management of PCa.
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Affiliation(s)
- Mohd Mughees
- Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India; Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA(1)
| | - Jyoti Bala Kaushal
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Gunjan Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Saima Wajid
- Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Surinder Kumar Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Jawed Akhtar Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
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Sharma G, Pothuraju R, Kanchan RK, Batra SK, Siddiqui JA. Chemokines network in bone metastasis: Vital regulators of seeding and soiling. Semin Cancer Biol 2022; 86:457-472. [PMID: 35124194 PMCID: PMC9744380 DOI: 10.1016/j.semcancer.2022.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/20/2022] [Accepted: 02/01/2022] [Indexed: 02/07/2023]
Abstract
Chemokines are well equipped with chemo-attractive signals that can regulate cancer cell trafficking to specific organ sites. Currently, updated concepts have revealed the diverse role of chemokines in the biology of cancer initiation and progression. Genomic instabilities and alterations drive tumor heterogeneity, providing more options for the selection and metastatic progression to cancer cells. Tumor heterogeneity and acquired drug resistance are the main obstacles in managing cancer therapy and the primary root cause of metastasis. Studies emphasize that multiple chemokine/receptor axis are involved in cancer cell-mediated organ-specific distant metastasis. One of the persuasive mechanisms for heterogeneity and subsequent events is sturdily interlinked with the crosstalk between chemokines and their receptors on cancer cells and tissue-specific microenvironment. Among different metastatic niches, skeletal metastasis is frequently observed in the late stages of prostate, breast, and lung cancer and significantly reduces the survival of cancer patients. Therefore, it is crucial to elucidate the role of chemokines and their receptors in metastasis and bone remodeling. Here, we review the potential chemokine/receptor axis in tumorigenesis, tumor heterogeneity, metastasis, and vicious cycle in bone microenvironment.
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Affiliation(s)
- Gunjan Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ramesh Pothuraju
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ranjana Kumari Kanchan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Surinder Kumar Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Jawed Akhtar Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
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Sharma G, Sharma R, Rajni E, Saxena R. Synergistic, Antidermatophytic Activity and Chemical Composition of Essential Oils against Zoonotic Dermatophytosis. Russ J Bioorg Chem 2022. [DOI: 10.1134/s1068162022060218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kobo O, Raisi-Estabragh Z, Elbadawi A, Velagapudi P, Sharma G, Petersen SE, Roguin A, Mamas MA. Patterns and outcomes of cardiovascular emergency department encounters for men and women in the USA. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1142] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Aims
We described sex-differential disease patterns and outcomes of over 20.6 million cardiovascular emergency department (ED) encounters in the USA.
Methods and results
We analysed primary cardiovascular encounters from the Nationwide Emergency Department Sample (between 2016–2018). We grouped the documented cardiovascular diagnoses into 15 disease categories. The sample included 48.7% women; average age was 67 [54,78] years. Men had greater overall baseline co-morbidity burden; however, women had higher rates of obesity, hypertension, and cerebrovascular disease. For women, the most common ED encounters were essential hypertension (16.0%), hypertensive heart or kidney disease (14.1%), and atrial fibrillation (AF)/flutter (10.2%). For men, the most common encounters were hypertensive heart or kidney disease (14.7%), essential hypertension (10.8%), and acute myocardial infarction (AMI, 10.7%). Women were more likely to present with essential hypertension, hypertensive crisis, AF/flutter, supraventricular tachycardia, pulmonary embolism, or ischaemic stroke. Men were more likely to present with AMI or cardiac arrest. In logistic regression models adjusted for baseline covariates, women with intracranial haemorrhage had higher risk of hospitalisation and death. Women with ischaemic stroke had higher risk of hospitalisation and death in ED. Women presenting with pulmonary embolism were less likely to be hospitalised but were more likely to die. Women with aortic aneurysm/dissection had higher risk of hospitalisation and death. Men were more likely to die following presentations with hypertensive heart or kidney disease, AF/flutter, AMI, or cardiac arrest.
Conclusion
In this large nationally representative sample of cardiovascular ED presentations, we demonstrate significant sex differences in disease distribution, hospitalisation, and death.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- O Kobo
- Hillel Yaffe Medical Center , Hadera , Israel
| | | | - A Elbadawi
- Baylor College of Medicine , Houston , United States of America
| | - P Velagapudi
- University of Nebraska Medical Center , Omaha , United States of America
| | - G Sharma
- The Johns Hopkins Hospital , Baltimore , United States of America
| | - S E Petersen
- William Harvey Research Institute , London , United Kingdom
| | - A Roguin
- Hillel Yaffe Medical Center , Hadera , Israel
| | - M A Mamas
- Keele University , Keele , United Kingdom
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Dubey Tiwari K, Sharma G, Prakash M, Parihar M, Dawane V. Effects of high glutamate concentrations on mitochondria of human neuroblastoma SH-SY5Y cells. Annales Pharmaceutiques Françaises 2022; 81:457-465. [PMID: 36252868 DOI: 10.1016/j.pharma.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 09/17/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND The excess amount of glutamate in neurons is associated with the excitotoxicity and neurodegenerative diseases. Glutamate induces neurotoxicity primarily by immense influx of Ca2+ arising from overstimulation of the NMDA subtype of glutamate receptors. The neuronal death induced by the overstimulation of glutamate receptors depends critically on a sustained increase in mitochondrial Ca2+ influx and impairment in mitochondrial functions. The mitochondrial impairment is an important contributor to the glutamate-induced neuronal toxicity and thus provides an important target for the intervention. The present study investigates the effects of high glutamate concentrations on mitochondrial functions. RESULTS Here, we have shown that the higher concentration of glutamate treatment caused a significant elevation in the N-methyl-D-aspartate (NMDA) receptors expression and elevated the intra-mitochondrial calcium accumulation in SHSY5Y neuronal cells. As a result of an accumulation of intra-mitochondrial calcium, there is a concentration-dependent elevation in ROS in the mitochondria. Tyrosine nitration of several mitochondrial proteins was increased while the mitochondrial membrane potential was dissipated. Furthermore, glutamate treatments also resulted in mitochondrial membrane permeability transition. CONCLUSIONS These findings suggest that treatment of high glutamate concentration causes impairment of mitochondrial functions by an increase in intra-mitochondrial calcium, ROS production, dissipation of mitochondrial membrane potential and mitochondrial permeability transition pore opening in human neuroblastoma SHSY5Y cells.
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Sharma G, ahlawat R, karthikeyan R, kummetha L, gautam S. POS-030 CLINICAL PROFILE AND OUTCOMES IN CHRONIC KIDNEY DISEASE STAGE 5 PATIENTS ON DIALYSIS HOSPITALIZED WITH COVID-19 INFECTION. Kidney Int Rep 2022. [PMCID: PMC9475101 DOI: 10.1016/j.ekir.2022.07.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Chand S, Mihooliya KN, Sahoo DK, Prasad JP, Sharma G. L-asparaginase from Bacillus flexus strain SS: Isolation, Screening, Production Process Optimization, Purification, and Anticancer Activity. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822040032] [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: 11/23/2022]
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Singh OP, Mishra S, Sharma G, Sindhania A, Kaur T, Sreehari U, Das MK, Kapoor N, Gupta B. Evaluation of intron-1 of odorant-binding protein-1 of Anopheles stephensi as a marker for the identification of biological forms or putative sibling species. PLoS One 2022; 17:e0270760. [PMID: 35862377 PMCID: PMC9302840 DOI: 10.1371/journal.pone.0270760] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/17/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Anopheles stephensi, an invasive malaria vector, has been reported to have three biological forms identifiable mainly based on the number of ridges present on the egg's floats. Recently, the first intron of the odorant-binding protein-1 (AsteObp1) has been introduced as a molecular marker for the identification of these forms, and based on this marker, the presence of three putative sibling species (designated as species A, B and C) has been proposed. However, there is no data on the association of proposed markers with biological form or putative species on field populations. METHODS Field collected and laboratory-reared An. stephensi were characterized for biological forms based on the number of ridges on the egg's float. DNA sequencing of the partial AsteObp1 gene of An. stephensi individuals were performed by Sanger's method, either directly or after cloning with a plasmid vector. Additionally, AsteObp1 sequences of various laboratory lines of An. stephensi were retrieved from a public sequence database. RESULTS AsteObp1 intron-1 in Indian An. stephensi populations are highly polymorphic with the presence of more than 13 haplotypes exhibiting nucleotides as well as length-polymorphism (90-to-121 bp). No specific haplotype or a group of closely related haplotypes of intron-1 was found associated with any biological form identified morphologically. High heterozygosity for this marker with a low inbreeding coefficient in field and laboratory populations indicates that this marker is not suitable for the delimitation of putative sibling species, at least in Indian populations. CONCLUSIONS AsteObp1 cannot serve as a marker for identifying biological forms of An. stephensi or putative sibling species in Indian populations.
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Affiliation(s)
- Om P. Singh
- National Institute of Malaria Research, Dwarka, New Delhi, India
- * E-mail: ,
| | - Shobhna Mishra
- National Institute of Malaria Research, Dwarka, New Delhi, India
| | - Gunjan Sharma
- National Institute of Malaria Research, Dwarka, New Delhi, India
| | - Ankita Sindhania
- National Institute of Malaria Research, Dwarka, New Delhi, India
| | - Taranjeet Kaur
- National Institute of Malaria Research, Dwarka, New Delhi, India
| | - U. Sreehari
- National Institute of Malaria Research, Field Unit, Bengaluru, India
| | - Manoj K. Das
- National Institute of Malaria Research, Field Unit, Ranchi, India
| | - Neera Kapoor
- School of Sciences, Indira Gandhi National Open University, Maidangarhi, New Delhi, India
| | - Bhavna Gupta
- Vector Control Research Centre, Field Station, Madurai, India
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Khalid S, Sharma G, Jakati S, Basu S. Mixed B- and T-lymphocyte Vitreous Infiltrate in Multiple Sclerosis Associated Uveitis. Ocul Immunol Inflamm 2022:1-3. [PMID: 35708328 DOI: 10.1080/09273948.2022.2079536] [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] [Indexed: 10/18/2022]
Abstract
A 23-year-old man, under treatment for relapsing remitting multiple sclerosis, presented with sudden drop in vision in the left eye for the past 1 week. We noted optic atrophy with sclerosed vessels in multiple quadrants in both eyes, moderate vitreous haze, and active retinal vasculitis in left eye. The patient received therapeutic pars plana vitrectomy in the left eye, and the vitreous sample was analyzed for immunophenotypes by flow cytometry (T-cells) and immunohistochemistry (B-cells). 65.1% of total vitreous cells were CD3+ T-cells. These included 42.4% CD4+, and 20.6% CD8+ T-cells. Immunohistochemistry detected CD20+ B-cells (not quantifiable). Our analysis demonstrated a mixed B- and T-lymphocyte vitreous infiltrate in multiple sclerosis-associated uveitis.
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Affiliation(s)
- Shabtab Khalid
- Uveitis Service, LV Prasad Eye Institute, Hyderabad, India
| | - Gunjan Sharma
- Immunology Laboratory, Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, India.,Research Unit, Nizam's Institute of Medical Sciences Multi-disciplinary, Hyderabad, India
| | - Saumya Jakati
- Ophthalmic Pathology Laboratory, LV Prasad Eye Institute, Hyderabad, India
| | - Soumyava Basu
- Uveitis Service, LV Prasad Eye Institute, Hyderabad, India.,Immunology Laboratory, Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, India
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Kulshreshtha K, Sharma G. From restaurant to cloud kitchen: Survival of the fittest during COVID-19 An empirical examination. Technol Forecast Soc Change 2022; 179:121629. [PMID: 35317191 PMCID: PMC8930395 DOI: 10.1016/j.techfore.2022.121629] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 01/21/2022] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
The restaurant industry is experiencing a financial crisis at the moment of COVID-19. The purpose of this paper is to explore and examine the impact of various factors responsible for purchase decisions for generation Z in the context of cloud kitchen. In this endeviour, the researchers used a self-reported survey questionnaire to collect the data. The quality responses were collected using convenience sampling and analysed using SmartPLS. As almost all businesses are hit badly due to the COVID-19 pandemic this paper explored the possibilities for the restaurant business i.e. food and beverage industry in the form of 'cloud kitchen'. In this endeavour, the impact of green aspects, memorable food experience (experiential food under experience economy) along with certain other factors was examined. This study extends the food choice process model by Furst et al. (1996) that in the recent time green aspect, memorable experience are being preferred by consumers. Moreover, the restaurant may choose to work as 'cloud kitchen until the situation (COVID-19) normalizes. The research work will contribute to new theoretical knowledge in the form of an extended food choice process model exploring generation Z purchase decision towards cloud kitchen.
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Affiliation(s)
| | - Gunjan Sharma
- Institute of Business Management, GLA University, Mathura, 281406, India
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Abbas M, Sharma G, Dambire C, Marquez J, Alonso-Blanco C, Proaño K, Holdsworth MJ. An oxygen-sensing mechanism for angiosperm adaptation to altitude. Nature 2022; 606:565-569. [PMID: 35650430 PMCID: PMC9200633 DOI: 10.1038/s41586-022-04740-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [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: 06/25/2021] [Accepted: 04/07/2022] [Indexed: 11/10/2022]
Abstract
Flowering plants (angiosperms) can grow at extreme altitudes, and have been observed growing as high as 6,400 metres above sea level1,2; however, the molecular mechanisms that enable plant adaptation specifically to altitude are unknown. One distinguishing feature of increasing altitude is a reduction in the partial pressure of oxygen (pO2). Here we investigated the relationship between altitude and oxygen sensing in relation to chlorophyll biosynthesis—which requires molecular oxygen3—and hypoxia-related gene expression. We show that in etiolated seedlings of angiosperm species, steady-state levels of the phototoxic chlorophyll precursor protochlorophyllide are influenced by sensing of atmospheric oxygen concentration. In Arabidopsis thaliana, this is mediated by the PLANT CYSTEINE OXIDASE (PCO) N-degron pathway substrates GROUP VII ETHYLENE RESPONSE FACTOR transcription factors (ERFVIIs). ERFVIIs positively regulate expression of FLUORESCENT IN BLUE LIGHT (FLU), which represses the first committed step of chlorophyll biosynthesis, forming an inactivation complex with tetrapyrrole synthesis enzymes that are negatively regulated by ERFVIIs, thereby suppressing protochlorophyllide. In natural populations representing diverse angiosperm clades, we find oxygen-dependent altitudinal clines for steady-state levels of protochlorophyllide, expression of inactivation complex components and hypoxia-related genes. Finally, A. thaliana accessions from contrasting altitudes display altitude-dependent ERFVII activity and accumulation. We thus identify a mechanism for genetic adaptation to absolute altitude through alteration of the sensitivity of the oxygen-sensing system. Plants have adapted to grow at specific altitudes by regulating chlorophyll synthesis in response to ambient oxygen concentration, calibrated by altitude-dependent activity of GROUP VII ETHYLENE RESPONSE FACTOR.
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Affiliation(s)
- Mohamad Abbas
- School of Biosciences, University of Nottingham, Nottingham, UK
| | - Gunjan Sharma
- School of Biosciences, University of Nottingham, Nottingham, UK
| | | | | | - Carlos Alonso-Blanco
- Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Karina Proaño
- Laboratorio de Biotecnología Vegetal, Departamento de Ciencias de la Vida y la Agricultura, Universidad de las Fuerzas Armadas ESPE, Sangolquí, Ecuador
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Gale D, Heider K, Ruiz-Valdepenas A, Hackinger S, Perry M, Marsico G, Rundell V, Wulff J, Sharma G, Knock H, Castedo J, Cooper W, Zhao H, Smith CG, Garg S, Anand S, Howarth K, Gilligan D, Harden SV, Rassl DM, Rintoul RC, Rosenfeld N. Residual ctDNA after treatment predicts early relapse in patients with early-stage non-small cell lung cancer. Ann Oncol 2022; 33:500-510. [PMID: 35306155 PMCID: PMC9067454 DOI: 10.1016/j.annonc.2022.02.007] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 02/02/2022] [Accepted: 02/14/2022] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Identification of residual disease in patients with localized non-small cell lung cancer (NSCLC) following treatment with curative intent holds promise to identify patients at risk of relapse. New methods can detect circulating tumour DNA (ctDNA) in plasma to fractional concentrations as low as a few parts per million, and clinical evidence is required to inform their use. PATIENTS AND METHODS We analyzed 363 serial plasma samples from 88 patients with early-stage NSCLC (48.9%/28.4%/22.7% at stage I/II/III), predominantly adenocarcinomas (62.5%), treated with curative intent by surgery (n = 61), surgery and adjuvant chemotherapy/radiotherapy (n = 8), or chemoradiotherapy (n = 19). Tumour exome sequencing identified somatic mutations and plasma was analyzed using patient-specific RaDaR™ assays with up to 48 amplicons targeting tumour-specific variants unique to each patient. RESULTS ctDNA was detected before treatment in 24%, 77% and 87% of patients with stage I, II and III disease, respectively, and in 26% of all longitudinal samples. The median tumour fraction detected was 0.042%, with 63% of samples <0.1% and 36% of samples <0.01%. ctDNA detection had clinical specificity >98.5% and preceded clinical detection of recurrence of the primary tumour by a median of 212.5 days. ctDNA was detected after treatment in 18/28 (64.3%) of patients who had clinical recurrence of their primary tumour. Detection within the landmark timepoint 2 weeks to 4 months after treatment end occurred in 17% of patients, and was associated with shorter recurrence-free survival [hazard ratio (HR): 14.8, P <0.00001] and overall survival (HR: 5.48, P <0.0003). ctDNA was detected 1-3 days after surgery in 25% of patients yet was not associated with disease recurrence. Detection before treatment was associated with shorter overall survival and recurrence-free survival (HR: 2.97 and 3.14, P values 0.01 and 0.003, respectively). CONCLUSIONS ctDNA detection after initial treatment of patients with early-stage NSCLC using sensitive patient-specific assays has potential to identify patients who may benefit from further therapeutic intervention.
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Affiliation(s)
- D Gale
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK; Cancer Research UK Cambridge Centre - Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, UK
| | - K Heider
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK; Cancer Research UK Cambridge Centre - Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, UK
| | - A Ruiz-Valdepenas
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK; Cancer Research UK Cambridge Centre - Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, UK
| | - S Hackinger
- Inivata Ltd, The Glenn Berge Building, Babraham Research Park, Babraham, Cambridge, UK
| | - M Perry
- Inivata Ltd, The Glenn Berge Building, Babraham Research Park, Babraham, Cambridge, UK
| | - G Marsico
- Inivata Ltd, The Glenn Berge Building, Babraham Research Park, Babraham, Cambridge, UK
| | - V Rundell
- Cambridge Clinical Trials Unit - Cancer Theme, Cambridge, UK
| | - J Wulff
- Cambridge Clinical Trials Unit - Cancer Theme, Cambridge, UK
| | - G Sharma
- Inivata Ltd, The Glenn Berge Building, Babraham Research Park, Babraham, Cambridge, UK
| | - H Knock
- Cambridge Clinical Trials Unit - Cancer Theme, Cambridge, UK
| | - J Castedo
- Cancer Research UK Cambridge Centre - Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, UK; Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
| | - W Cooper
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK; Cancer Research UK Cambridge Centre - Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, UK
| | - H Zhao
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK; Cancer Research UK Cambridge Centre - Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, UK
| | - C G Smith
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK; Cancer Research UK Cambridge Centre - Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, UK
| | - S Garg
- Cancer Molecular Diagnostics Laboratory, Clifford Allbutt Building, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - S Anand
- Cancer Molecular Diagnostics Laboratory, Clifford Allbutt Building, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - K Howarth
- Inivata Ltd, The Glenn Berge Building, Babraham Research Park, Babraham, Cambridge, UK
| | - D Gilligan
- Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK; Addenbrooke's Hospital, Cambridge, UK
| | | | - D M Rassl
- Cancer Research UK Cambridge Centre - Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, UK; Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
| | - R C Rintoul
- Cancer Research UK Cambridge Centre - Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, UK; Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK; Department of Oncology, University of Cambridge Hutchison-MRC Research Centre, Cambridge Biomedical Campus, Cambridge, UK.
| | - N Rosenfeld
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK; Cancer Research UK Cambridge Centre - Cambridge, Cancer Research UK Cambridge Institute, Li Ka Shing Centre, Cambridge, UK; Inivata Ltd, The Glenn Berge Building, Babraham Research Park, Babraham, Cambridge, UK.
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Meshram V, Sharma G, Maymon M, Protasov A, Mendel Z, Freeman S. Symbiosis and pathogenicity of Geosmithia and Talaromyces spp. associated with the cypress bark beetles Phloeosinus spp. and their parasitoids. Environ Microbiol 2022; 24:3369-3389. [PMID: 35467072 PMCID: PMC9541806 DOI: 10.1111/1462-2920.16016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 04/13/2022] [Accepted: 04/13/2022] [Indexed: 11/29/2022]
Abstract
Fungi associated with cypress bark beetles are practically unknown in the Eastern Mediterranean. Our study focused on the fungi associated with the body parts and galleries of two indigenous cypress bark beetles, Phloeosinus armatus and P. bicolor, sampled from Cupressus sempervirens trees in different regions in Israel. Arbitrarily primed PCR, performed on genomic DNA of 302 isolates, clustered the fungal population into five distinct groups. Multilocus phylogeny, split‐network analyses and morphological characterization identified the isolates as Geosmithia omnicola, Geosmithia langdonii, Geosmithia sp. 708b, Geosmithia cupressina sp. nov. CBS147103 and Talaromyces cupressi sp. nov. CBS147104. Of these fungal isolates, G. cupressina and T. cupressi are newly described, and their morphological features and phylogenetic designations are presented. Inoculation of intact cypress saplings in an outdoor net‐house revealed that only the representative isolate T. cupressi sp. nov. CBS147104 causes 100% disease incidence, whereas Geosmithia spp. isolates are not pathogenic. A number of these fungi were isolated from parasitoids that emerged from branch and stem sections colonized by P. armatus. This study suggests a long and stable association between Phloeosinus and Geosmithia species, and a possible role for additional associated fungal species as pathogens or endophytes of C. sempervirens trees in Israel.
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Affiliation(s)
- Vineet Meshram
- Department of Plant Pathology and Weed Research, Institute of Plant Protection, Agricultural Research Organization, The Volcani Institute, Rishon LeZion, 7505101, Israel
| | - Gunjan Sharma
- Department of Plant Pathology and Weed Research, Institute of Plant Protection, Agricultural Research Organization, The Volcani Institute, Rishon LeZion, 7505101, Israel
| | - Marcel Maymon
- Department of Plant Pathology and Weed Research, Institute of Plant Protection, Agricultural Research Organization, The Volcani Institute, Rishon LeZion, 7505101, Israel
| | - Alex Protasov
- Department of Entomology, Institute of Plant Protection, Agricultural Research Organization, The Volcani Institute, Rishon LeZion, 7505101, Israel
| | - Zvi Mendel
- Department of Entomology, Institute of Plant Protection, Agricultural Research Organization, The Volcani Institute, Rishon LeZion, 7505101, Israel
| | - Stanley Freeman
- Department of Plant Pathology and Weed Research, Institute of Plant Protection, Agricultural Research Organization, The Volcani Institute, Rishon LeZion, 7505101, Israel
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Sani S, Akhtar MS, Kapur P, Sharma G, Tabassum F, Khan MF, Sharma M. Evaluation of prescribing pattern, therapeutic adherence, and occurrence of adverse drug reactions in patients with type 2 diabetes mellitus. CDTH 2022. [DOI: 10.2174/1574885517666220408110650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Persistent hyperglycemia in diabetes mellitus (DM) is considered as the leading cause of morbidity and mortality associated with both microvascular and macrovascular complications and has a greater economic impact. This study aimed to assess the impact of socioeconomic status, prescribing patterns, and patient compliance in type 2 diabetes mellitus patients.
Method:
This study was carried out in the department of medicine and diabetic clinic of Hakeem Abdul Hameed (HAH) Centenary Hospital at Hamdard University, New Delhi, India. We conducted a prospective observational study on prescribing patterns and monitoring of adverse drug reactions (ADRs) in patients with type 2 DM (T2DM) taking standard care. We enrolled 150 confirmed cases and data was obtained from pre-validated questionnaires and then coded and analyzed to observe the association between variables.
Results:
The glycosylated haemoglobin level in 56 % of cases was between 6.4 to 8.0 and cardiovascular complications were observed as the major comorbidities. 45.33 % of cases were on mono drug therapy and Metformin (23. 52 %) was the drug of choice followed by Glimepiride (23.52 %). Among the dual drug therapies, Sitagliptin with Metformin and in triple-drug therapy, Glimepiride concurrent with Metformin and Voglibose was the most preferred drug in the treatment of T2DM. Sitagliptin was observed to be a major patient burden (46.213 USD). In only 7.33 % of cases, we observed definite ADR in T2DM patients. Underprivileged awareness, mainly due to low literacy, was a major concern in the development of new cases of T2DM.
Conclusion:
We observed better patient compliance and disease awareness program is required to be implemented. The use of oral hypoglycaemic drugs is still dominant in clinical practice and cardiovascular disorders as comorbidities emerge as a greater challenge in terms of patient outcome and cost burden.
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Affiliation(s)
- Sanusi Sani
- Department of Pharmacology, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi-110062 (India)
| | - Md. Sayeed Akhtar
- College of Pharmacy, King Khalid University, Abha–21974 (Kingdom of Saudi Arabia)
| | - Prem Kapur
- Department of Medicine, Hamdard Institute of Medical Sciences and Research, Jamia Hamdard, New Delhi, 110062, (India)
| | - Gunjan Sharma
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University, Noida, Uttar Pradesh-, 201303, (India)
| | - Fauzia Tabassum
- Deparmtent of Clinical Pharmacy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, 11942, (Kingdom of Saudi Arabia)
| | - Mohd Faiyaz Khan
- Department of Pharmacology, Santosh Medical College and Hospital, Ghaziabad, 201009, (India)
| | - Manju Sharma
- Department of Pharmacology, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi-110062 (India)
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Liu DT, Prem B, Sharma G, Kaiser J, Besser G, Mueller CA. Depression Symptoms and Olfactory-related Quality of Life. Laryngoscope 2022; 132:1829-1834. [PMID: 35353380 PMCID: PMC9544892 DOI: 10.1002/lary.30122] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 01/30/2022] [Revised: 03/05/2022] [Accepted: 03/22/2022] [Indexed: 01/05/2023]
Abstract
Objectives Patients with olfactory dysfunction (OD) frequently report symptoms of depression. The objective of this study was to determine how clinical characteristics and olfactory‐related quality of life (QoL) measures associate with the likelihood for major depressive disorders (MDDs). Methods A total of 192 OD patients were included. Olfactory function was measured using all three subtests of the Sniffn' Sticks test. Olfactory‐related quality of life (QoL) was evaluated using the Questionnaires of Olfactory Dysfunction (QOD)‐negative (NS) and ‐positive statement (PS). The likelihood for MDD was assessed using the Patients Health Questionnaire‐2 (PHQ‐2). Demographics and disease‐specific variables (etiology and duration of OD) were collected. Univariate and multivariable analyses were used to associate disease‐specific variables and the QOD with the outcome of the PHQ‐2. Additionally, the predictive ability of the QOD‐NS to predict depressive symptoms was calculated. Results In univariate analysis, COVID‐19 related smell loss, the QOD‐NS, and the QOD‐PS were significantly associated with the PHQ‐2. In multivariable analyses adjusting for QoL measures, the QOD‐NS (ß = 0.532, p < 0.001) and sinonasal OD (compared with postinfectious OD) were significantly associated with the PHQ‐2 (ß = 0.146, p = 0.047). When omitting QoL measures from multivariable analyses, only COVID‐19 related OD (compared with postinfectious OD) was significantly associated with the PHQ‐2 (ß = 0.287, p = 0.009). A QOD‐NS score > 20.5 had 70.13% sensitivity and 76.32% specificity for detecting symptoms of depression. Conclusion Our results suggest that COVID‐19 related OD might be associated with a higher likelihood for MDD. Furthermore, we showed that the QOD‐NS score might be helpful to predict symptoms of depression in OD patients. Level of Evidence 4 Laryngoscope, 132:1829–1834, 2022
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Affiliation(s)
- David T Liu
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Vienna, Austria
| | - Bernhard Prem
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Vienna, Austria
| | - Gunjan Sharma
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Vienna, Austria
| | - Julia Kaiser
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Vienna, Austria
| | - Gerold Besser
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Vienna, Austria
| | - Christian A Mueller
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna, Vienna, Austria
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Sahu M, Sharma AK, Sharma G, Kumar A, Nandave M, Babu V. Facile synthesis of bromelain copper nanoparticles to improve the primordial therapeutic potential of copper against acute myocardial infarction in diabetic rats. Can J Physiol Pharmacol 2022; 100:210-219. [PMID: 34910610 DOI: 10.1139/cjpp-2021-0129] [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] [Indexed: 11/22/2022]
Abstract
Our current investigation comprises the synthesis and pharmacological impact of bromelain copper nanoparticles (BrCuNP) against diabetes mellitus (DM) and associated ischemia/reperfusion (I/R) - induced myocardial infarction. Bromelain is a proteolytic enzyme obtained from Ananas comosus L. Merr., which has blood platelet aggregation inhibiting and arterial thrombolytic potential. Moreover, copper is well-known to facilitate glucose metabolism and strengthen cardiac muscle and antioxidant activity; although, chronic or long-term exposure to high doses of copper may lead to copperiedus. To restrict these potential hazards, we synthesized herbal nano-formulation which convincingly indicated the improved primordial therapeutic potential of copper by reformulating the treatment carrier with bromelain, resulting in facile synthesis of BrCuNP. DM was induced by administration of double cycle repetitive dose of low dose streptozotocin (20 mg/kg, i.p.) in high-fat diet- fed animals. DM and associated myocardial I/R injury were estimated by increased serum levels of total cholesterol, low-density lipoprotein, very low-density lipoprotein, lactate dehydrogenase, creatine kinase myocardial band, cardiac troponin, thiobarbituric acid reactive substances, tumor necrosis factor α, interleukin 6, and reduced serum level of high-density lipoprotein and nitrite/nitrate concentration. However, treatment with BrCuNP ameliorates various serum biomarkers by approving cardioprotective potential against DM- and I/R-associated injury. Furthermore, upturn of histopathological changes were observed in cardiac tissue of BrCuNP-treated rats in comparison to disease models.
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Affiliation(s)
- Megha Sahu
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University, Noida-201313, UP, India
- Department of Pharmacology, Delhi Pharmaceutical Sciences and Research University, New Delhi, India
| | - Arun K Sharma
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University Haryana, Gurugram - 122412, Haryana, India
| | - Gunjan Sharma
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University Haryana, Gurugram - 122412, Haryana, India
| | - Ashish Kumar
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University Haryana, Gurugram - 122412, Haryana, India
| | - Mukesh Nandave
- Department of Pharmacology, Delhi Pharmaceutical Sciences and Research University, New Delhi, India
| | - Varsha Babu
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University, Noida-201313, UP, India
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