Rohit Gundamaraju

Rohit Gundamaraju
Washington University in St. Louis | WUSTL , Wash U · Division of Gastroenterology

Post doc fellow at WASHU medical center
Investigating positive correlations with CRC at WASHU medical center, Division of Gastroenterology

About

81
Publications
30,522
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Introduction
After extensive effort and interest towards medicine, I have developed fascination towards pathophysiology especially areas like cellular stress, conditions articulated by ER stress and renal disease. My area of interest is mainly in correlation of ER stress with other disease conditions like IBD, metabolic diseases and other life style disorders. Efforts are being made by me and my team for identification of novel pathways, protein candidates and mechanisms.
Additional affiliations
February 2014 - June 2015
University of Malaya
Position
  • Researcher

Publications

Publications (81)
Article
Glioblastoma (GBM) is presented with a poor prognosis. The endoplasmic reticulum stress (ERS) has been implicated as a major contributor to disease progression and chemoresistance in GBM. Triggering ERS by chemical agents or genetic modulations is identified as some of the reasons for regulating gene expression and the pathogenesis of GBM. ERS init...
Article
Oral microbial ecosystems are vital in maintaining the health of the oral cavity and the entire body. Oral microbiota is associated with the progression of oral diseases such as dental caries, periodontal diseases, head and neck cancer, and several systemic diseases such as cardiovascular disease, rheumatoid arthritis, adverse pregnancy outcomes, d...
Article
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Breast cancer (BC) is the most prevalent neoplasm among women. Genetic and environmental factors lead to BC development and on this basis, several preventive – screening and therapeutic interventions have been developed. Hormones, both in the form of endogenous hormonal signaling or hormonal contraceptives, play an important role in BC pathogenesis...
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Diabetic wound (DW) is a secondary application of uncontrolled diabetes and affects about 42.2% of diabetics. If the disease is left untreated/uncontrolled, then it may further lead to amputation of organs. In recent years, huge research has been done in the area of wound dressing to have a better maintenance of DW. These include gauze, films, foam...
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Exosomes are cargos facilitating the transport of miRNAs across cancer cells. Exosomal miRNA has been an area of interest in recent times due to their triple role in cancer proliferation. The current review discusses the triple role of exosomal miRNAs and proposes its application in diagnosis as a prognostic marker. Exosomal miRNAs are miRNAs found...
Article
Metastasis consists of hallmark events, including Epithelial-Mesenchymal Transition (EMT), angiogenesis, initiation of inflammatory tumor microenvironment, and malfunctions in apoptosis. Autophagy is known to play a pivotal role in the metastatic process. Autophagy has pulled researchers towards it in recent times because of its dual role in the ma...
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Metastasis or the progression of malignancy poses a major challenge in cancer therapy and is the principal reason for increased mortality. The epithelial-Mesenchymal transition (EMT) of the Basement Membrane (BM) allows cells of epithelial phenotype to transform into a mesenchymal-like (quasi-mesenchymal) phenotype and metastasize via the lymphovas...
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Developmental signaling pathways such as Wnt/β-catenin, Notch and Sonic hedgehog play a central role in nearly all the stages of neuronal development. The term ‘embryonic’ might appear as a misnomer to several people because these pathways are functional during the early stages of embryonic development and adulthood, albeit to a certain degree. The...
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The gut bacterial community is involved in the metabolism of bile acids and short-chain fatty acids (SCFAs). Bile acids are involved in the absorption of fat and the regulation of lipid homeostasis through emulsification and are transformed into unconjugated bile acids by the gut microbiota. The gut microbiota is actively involved in the production...
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Recent mounting evidence has revealed extensive genetic heterogeneity within tumors that drive phenotypic variation affecting key cancer pathways, making cancer treatment extremely challenging. Diverse cancer types display resistance to treatment and show patterns of relapse following therapy. Therefore, efforts are required to address tumor hetero...
Chapter
With a slow and fast momentum, a whopping 95,55,027 cancer deaths were recorded as of 2020 globally. Subsequent detection of cancer in the patient requires a computed tomography (CT) scan to determine the spread of cancers. However, a positron emission tomography (PET) scan has been currently employed to determine the patient response to treatment...
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The objective of this review focus on black garlic (BG) extract structural composition, and functional foods reduce the risk of developing disease rather than prevent or have pharmacology action. The different groups of health-promoting phytoconstituents such as total phenolics, S-allyl cysteine, hydroxycinnamic acid derivatives are present 5-(hydr...
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Background: With prostate cancer being the fifth-greatest cause of cancer mortality in 2020, there is a dire need to expand the available treatment options. Castration-resistant prostate cancer (CRPC) progresses despite androgen depletion therapy. The mechanisms of resistance are yet to be fully discovered. However, it is hypothesized that androgen...
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Myocardium Infarction (MI) is one of the foremost cardiovascular diseases (CVDs) causing death worldwide, and its case numbers are expected to continuously increase in the coming years. Pharmacological interventions have not been at the forefront in ameliorating MI-related morbidity and mortality. Stem cell-based tissue engineering approaches have...
Article
Colorectal cancer (CRC) exhibits complex pathogenesis via compromised intestinal mucosal barrier. It is accepted that goblet cells secrete mucin which line the intestinal mucosal barrier and offer wide range protection and maintain the gut integrity. The principal mucin in the small and large intestine which is Mucin2 (MUC2) is predominantly expres...
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The presence of small subpopulations of cells within tumor cells are known as cancer stem cells (CSCs). These cells have been the reason for metastasis, resistance with chemotherapy or radiotherapy, and tumor relapse in several types of cancers. CSCs underwent to epithelial–mesenchymal transition (EMT) and resulted in the development of aggressive...
Article
Endoplasmic reticular stress (ERS) has been well-documented in escalating metastasis in clinical conditions. There has been a debate on its role in cancer portraying it as a double-edged sword. However, there is no evidence of increased cell migration and cell invasion under increased ERS by tunicamycin(TUN) 10μg/mL. In this study, we treated colon...
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Tumor cells undergo invasion and metastasis through epithelial-to-mesenchymal cell transition (EMT) by activation of alterations in extracellular matrix (ECM) protein-encoding genes, enzymes responsible for the breakdown of ECM, and activation of genes that drive the transformation of the epithelial cell to the mesenchymal type. Inflammatory cytoki...
Preprint
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Aim: Endoplasmic reticular stress (ERS) has been well-documented in escalating metastasis in clinical conditions. There has been a debate on its role in cancer portraying it as a double-edged sword. However, there is no evidence of increased cell migration and cell invasion under increased ERS by tunicamycin(TUN) 10μg/mL. Methods: In this study, we...
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The Warburg effect has immensely succored the study of cancer biology, especially in highlighting the role of mitochondria in cancer stemness and their benefaction to the malignancy of oxidative and glycolytic cancer cells. Mitochondrial genetics have represented a focal point in cancer therapeutics due to the involvement of mitochondria in program...
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The majority of cellular responses to external stimuli are mediated by receptors such as G protein-coupled receptors (GPCRs) and systems including endoplasmic reticulum stress (ER stress). Since GPCR signalling is pivotal in numerous malignancies, they are widely targeted by a number of clinical drugs. Cancer cells often negatively modulate GPCRs i...
Preprint
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The majority of cellular responses to external stimuli are mediated by receptors such as G protein-coupled receptors (GPCRs) and systems including endoplasmic reticular stress (ER stress). Since GPCR signalling is pivotal in numerous malignant pathologies, they are targeted by a number of clinically used drugs. Cancer cells often negatively modulat...
Article
Background Accumulating evidence suggests that the goblet cell-derived mucin-2 (Muc2) is a major component of the immune system and that perturbations in Muc2 lead to an ulcerative colitis–like phenotype. The animal model Winnie carries a missense mutation in Muc2 that causes Muc2 misfolding, accumulation in goblet cells, and ER stress. Excessive E...
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Distribution of the microbiota varies according to the location in the gastrointestinal (GI) tract. Thus, dysbiosis during aging may not be limited to faecal microbiota and extend to the other parts of the GI tract, especially the cecum and colon. Lactobacillus acidophilus DDS-1, a probiotic strain, has been shown to modulate faecal microbiota and...
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Mildly elevated serum unconjugated bilirubin (UCB) concentrations are associated with protection against disease conditions underpinned by cellular and metabolic stress. To determine the potential therapeutic efficacy of UCB we tested it in an in vitro model of gut inflammation. Tunicamycin TUN (10 µg/mL) was used to induce endoplasmic reticular st...
Article
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Sustained endoplasmic reticular stress (ERS) is implicated in aggressive metastasis of cancer cells and increased tumor cell proliferation. Cancer cells activate the unfolded protein response (UPR), which aids in cellular survival and adaptation to harsh conditions. Inhibition of apoptosis, in contrast, is a mechanism adopted by cancer cells with t...
Article
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Recent evidence suggests that gut microbiota shifts can alter host metabolism even during healthy aging. Lactobacillus acidophilus DDS-1, a probiotic strain, has shown promising probiotic character in vitro, as well as in clinical studies. The present study was carried out to investigate whether DDS-1 can modulate the host metabolic phenotype under...
Article
Initiating anti-apoptotic signaling or triggering cell death depends to a great extent on the nature or source of cellular stress and cell type. Interplay between each stress response eventually determines the fate of stressed cell. Numerous factors induce cell death by a number of pathways including apoptosis, autophagy and necrosis. Not surprisin...
Article
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MCC950 a potent, highly specific small molecule inhibitor of canonical and noncanonical activation of NLRP3 inflammasome has been evaluated in a multitude of NLRP3 driven inflammatory diseases. However, the effect of MCC950 on colonic inflammation has not yet been reported. In the present study we investigated the effect of MCC950 in a spontaneous...
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Background: The health benefits of probiotics are well established and known to be strain-specific. However, the role of probiotics obtained from different origins and their efficacy largely remains unexplored. The aim of this study is to investigate the in vitro efficacy of probiotics from different origins. Methods: Probiotic strains utilized in...
Article
Background: The health benefits of probiotics are well established and known to be strain-specific. However, the role of probiotics obtained from different origins and their efficacy largely remains unexplored. The aim of this study is to investigate the in vitro efficacy of probiotics from different origins. Methods: Probiotic strains utilized in...
Article
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Gut microbiota is established during birth and evolves with age, mostly maintaining the commensal relationship with the host. A growing body of clinical evidence suggests an intricate relationship between the gut microbiota and the immune system. With ageing, the gut microbiota develops significant imbalances in the major phyla such as the anaerobi...
Article
Background: IBD is considered as one of the major public health concerns worldwide. The pathophysiology and gut microbial alteration during inflammatory bowel disease (IBD) are still not completely understood. Gut microbiota is implicated in most of the gastro-intestinal (GI) diseases including IBD. From the time of gut microbiota establishment an...
Article
Background: The world has witnessed growing complexities in disease scenario influenced by the drastic changes in host-pathogen- environment triadic relation. Pharmaceutical R&Ds are in constant search of novel therapeutic entities to hasten transition of drug molecules from lab bench to patient bedside. Extensive animal studies and human pharmaco...
Article
Background: Type-2 Diabetes is a long lasting disease characterized by high glucose concentration in the blood due to insulin resistance. One of the recent treatment strategies is using activators against SIRT-1, which has been in clinical trials. Hence, it is necessary to know the effects of the SIRT-1 modulators against various metabolic pathway...
Article
Background: Endoplasmic reticulum is the major site for protein biosynthesis. Any perturbation in the endoplasmic reticulum will compromise its functions and reduce its efficiency in protein biosynthesis. As a result, misfolded proteins are produced and accumulated in the endoplasmic reticulum. This will result in endoplasmic reticulum stress, whi...
Article
Ageing and physiological functions of the human body are inversely proportional to each other. The gut microbiota and host immune system co-evolve from infants to the elderly. Ageing is accompanied by a decline in gut microbial diversity, immunity and metabolism, which increases susceptibility to infections. Any compositional change in the gut is d...
Article
Identifying novel bio markers in gastro intestinal disease is a promising method where a comprehensive analysis of the metabolome is performed. Metabolomics has evolved enormously in the past decade, paving a path in gastro intestinal disease research, especially diseases which lead to high morbidity and mortality. Metabolomics involves identifying...
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Colorectal cancer (CRC) is one of the most life threatening disease with escalating mortality and morbidity. Some known causative factors include lifestyle, alcohol etc. but there are other aspects like long standing colitis, inhibition of apoptotic proteins, chemokines and their receptors and inflammasomes which increase the chances of CRC progres...
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Background: Streblusol E, a phenolic phytoconstituents of Streblus asper is a potential antihepatitis B viral agent. Objective: Current study is to mechanistically analyze the probable site of action for streblusol E. Material and methods: Streblusol E has been docked with EF3-CaM adenylyl cyclase(1PK0), deoxycytidine kinase(2NOA), human nucleoside...
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Background: Tulsi, Banyan, and Jamun are popular Indian medicinal plants with notable hypoglycemic potentials. Now the work reports chemo-profiling of the three species with in-vitro screening approach for natural enzyme inhibitors (NEIs) against enzymes pathogenic for type 2 diabetes. Further along with the chemometrics optimized extraction proce...
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Aim of the study is to chemometrically optimize the extraction procedure of tea polyphenolics, evaluate antioxidant potentials of fresh tea leaves and made tea grown in the non-traditional tea zone of IIT Kharagpur by in vitro assays, in silico docking studies and in vitro AChE inhibitory assays. Total tea polyphenolics, flavonoids and volatile co...
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Despite tremendous strides in modern medicine stringent control over insulin resistance or restoration of normoglycemia has not yet been achieved. With the growth of molecular biology, omics technologies, docking studies, and in silico pharmacology, modulators of enzymes and receptors affecting the molecular pathogenesis of the disease are being co...
Article
BACKGROUND: Rosacea is a characteristic cutaneous disorder with a diverse clinical manifestations ranging from facial vascular hyper-reactivity to sebaceous gland hyperplasia. Many theories on pathophysiology of rosacea were proposed over the past decade, however the pathogenicity is poorly understood. AIM: To review the evidence on different pat...
Article
Full-text available
Background: Rosacea is a characteristic cutaneous disorder with a diverse clinical manifestations ranging from facial vascular hyper-reactivity to sebaceous gland hyperplasia. Many theories on pathophysiology of rosacea were proposed over the past decade, however the pathogenicity is poorly understood. Aim: To review the evidence on different patho...
Data
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Rabies is a devastating viral disease affecting the central nervous system. The fatality rate is very high compared to other viral diseases. Inadequate vaccination, lack of awareness, cost of medications and ineffective post-prophylactic surveillance are some of the major reasons for the high prevalence of rabies in tropical regions, leading to mor...
Article
Background: Rosacea is a characteristic cutaneous disorder with a diverse clinical manifestations ranging from facial vascular hyper-reactivity to sebaceous gland hyperplasia. Many theories on pathophysiology of rosacea were proposed over the past decade, however the pathogenicity is poorly understood. Aim: To review the evidence on different path...
Article
Full-text available
Entamoeba being an internal parasite is the causative organism of many human and animal infections with lethal consequences. Chemotherapy against Entamoeba was well established by both synthetic and natural products. Vigorous attainments were made by different researchers all over the world for discovering better chemical entities and the potent fo...
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Investigation of in vitro/in vivo behavior of fast-dissolving tablets containing solid dispersions (SDs) of lamotrigine (LM) was the aim and focus of the present research work. The effect of various hydrophilic polymers on the aqueous solubility of LM was studied. Polyethylene glycol (PEG 6000) was selected as the vehicle and SDs were prepared by m...
Article
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Rabeprazole provided effective control of gastric acid in patients with symptoms of gastroesophageal reflux. The present work was carried out to improve the therapeutic efficacy of Rabeprazole by expediting its onset of action. Rabeprazole is unstable in acidic environment which requires the drug in immediate release tablet to be delivered in an al...
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Background: The plant Albizia amara (Roxb.) Boiv. bark was used in traditional medical practices of India to treat cardiovascular diseases. Hyperlipidemia is the greatest risk factor of coronary heart disease. Objective: The objective of this study was to screen the potential of A. amara against the condition of hyperlipidemia in rats. Materials an...
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Background: The myocardium is generally injured in the case of reperfusion injury and arterial damage is caused by hypertension. In reference to these statements, the present study was focused. Cardiac glycosides were said to have protective effects against myocardial infarction and hypertension. Strophanthus hispidus was thus incorporated in the...
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Phytochemical studies of ethanolic extract of stems of Ichnocarpus frutescens resulted in the isolation of tetracyclic triterpenic ester lanosteryl oleate (6), two new monoterpenic esters, menth-1(7)-en-9-olyl dodecanoate (7) and 2-(4-methylcyclohex-3-enyl)propyl dodecanoate (8). Their structures were established on the basis of extensive spectral...
Book
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This book highlights the importance of diagnostic techniques using volumetric measurements for screening, evaluation of tumors and identification of metastases. Cancer is a pathologic biological process. Various Therapies and drugs are designed to interfere with the pathologic process and should therefore also be validated using a functional screen...