1.Challenges in Metabolite Biomarkers as Avenues of Diagnosis and Prognosis of Cancer
Nilesh Kumar SHARMA ; Sachin C. SARODE ; Gopinath SEKAR ; Kaveri SONAWANE ; Dhanashree BOMLE
Journal of Cancer Prevention 2024;29(4):105-112
Given the evolutionary nature of tumor complexities and heterogeneity, the early diagnosis of cancer encounters various challenges. Complexities at the level of metabolite reprogramming are compelling in the background of invasiveness, metastasis, drug- and radiation-induced metabolic alterations, immunotherapy-influenced changes, and pro-tumor niche including microbiome. Therefore, it is crucial to examine both current and future obstacles associated with early cancer detection specifically in the context of tumor metabolite biomarkers at preclinical and clinical levels. In conclusion, the significance of tumor metabolite biomarkers must be aligned with a comprehensive approach to achbieve diagnosis and prognosis of cancer patients by securing solutions to formidable challenges.
2.Challenges in Metabolite Biomarkers as Avenues of Diagnosis and Prognosis of Cancer
Nilesh Kumar SHARMA ; Sachin C. SARODE ; Gopinath SEKAR ; Kaveri SONAWANE ; Dhanashree BOMLE
Journal of Cancer Prevention 2024;29(4):105-112
Given the evolutionary nature of tumor complexities and heterogeneity, the early diagnosis of cancer encounters various challenges. Complexities at the level of metabolite reprogramming are compelling in the background of invasiveness, metastasis, drug- and radiation-induced metabolic alterations, immunotherapy-influenced changes, and pro-tumor niche including microbiome. Therefore, it is crucial to examine both current and future obstacles associated with early cancer detection specifically in the context of tumor metabolite biomarkers at preclinical and clinical levels. In conclusion, the significance of tumor metabolite biomarkers must be aligned with a comprehensive approach to achbieve diagnosis and prognosis of cancer patients by securing solutions to formidable challenges.
3.Challenges in Metabolite Biomarkers as Avenues of Diagnosis and Prognosis of Cancer
Nilesh Kumar SHARMA ; Sachin C. SARODE ; Gopinath SEKAR ; Kaveri SONAWANE ; Dhanashree BOMLE
Journal of Cancer Prevention 2024;29(4):105-112
Given the evolutionary nature of tumor complexities and heterogeneity, the early diagnosis of cancer encounters various challenges. Complexities at the level of metabolite reprogramming are compelling in the background of invasiveness, metastasis, drug- and radiation-induced metabolic alterations, immunotherapy-influenced changes, and pro-tumor niche including microbiome. Therefore, it is crucial to examine both current and future obstacles associated with early cancer detection specifically in the context of tumor metabolite biomarkers at preclinical and clinical levels. In conclusion, the significance of tumor metabolite biomarkers must be aligned with a comprehensive approach to achbieve diagnosis and prognosis of cancer patients by securing solutions to formidable challenges.
4.Organic Acids Derived from Saliva-amalgamated Betel Quid Filtrate Are Predicted as a Ten-eleven Translocation-2 Inhibitor
Devyani BHATKAR ; Nistha ANANDA ; Kiran Bharat LOKHANDE ; Kratika KHUNTETA ; Priyadarshini JAIN ; Ameya HEBALE ; Sachin C. SARODE ; Nilesh Kumar SHARMA
Journal of Cancer Prevention 2023;28(3):115-130
There is a lack of evidence regarding the use of betel quid (BQ) and its potential contribution to oral cancer. Limited attention has been directed towards investigating the involvement of BQ-derived organic acids in the modulation of metabolic-epigenomic pathways associated with oral cancer initiation and progression. We employed novel protocol for preparing saliva-amalgamated BQ filtrate (SABFI) that mimics the oral cavity environment. SABFI and saliva control were further purified by an in-house developed vertical tube gel electrophoresis tool. The purified SABFI was then subjected to liquid chromatography-high resolution mass spectrometry analysis to identify the presence of organic acids. Profiling of SABFI showed a pool of prominent organic acids such as citric acid. malic acid, fumaric acid, 2-methylcitric acid, 2-hydroxyglutarate, cis-aconitic acid, succinic acid, 2-hydroxyglutaric acid lactone, tartaric acid and β-ketoglutaric acid. SABFI showed anti-proliferative and early apoptosis effects in oral cancer cells. Molecular docking and molecular dynamics simulations predicted that SABFI-derived organic acids as potential inhibitors of the epigenetic demethylase enzyme, Ten-Eleven Translocation-2 (TET2). By binding to the active site of α-ketoglutarate, a known substrate of TET2, these organic acids are likely to act as competitive inhibitors. This study reports a novel approach to study SABFI-derived organic acids that could mimic the chemical composition of BQ in the oral cavity. These SABFI-derived organic acids projected as inhibitors of TET2 and could be explored for their role oral cancer.
5.Situation analysis of COVID-19 on Domestic Violence in Fiji
Nehoray Azan Al- Nazhir ; Richard D. Nair ; Mashnil Shinoy ; Jignesh Sharma
Pacific Journal of Medical Sciences 2023;24(1):37-47
COVID-19, a highly contagious and deadly virus rapidly swept across the world from the year 2019 to 2020 killing more than two million people. Due to the magnitude of affect the virus was having, governments were forced into taking measures that required isolation of the infected from the unaffected, as mitigation to halt the spread. This brought about the “COVID-19 Lockdown”. Though the Pacific Island Countries (PICs) were with one of the least numbers of COVID-19 cases, similar measures were implemented as measure to prevent the virus from entering the countries. Like other countries, PICs like Fiji had a lockdown and this affected the lifestyles of the people. Amidst the lockdown, there was a rise in domestic violence cases. The literature review was done using databases; Medline, ProQuest, Embase, and Scopus. The research was done by using the relevant keywords in the field of COVID-19 which was aimed specifically on domestic violence during the pandemic. Moreover, local, and international publications, like media reports and published reports were also used. Upon carrying out this research it could be stated that there was a rise in the number of domestic violence cases in the wake of the COVID-19 pandemic lockdown. The literature review was aimed at identifying the consequences of COVID-19 and why it triggered a spike in domestic violence cases. The study concluded that the psychological impacts, and socio-economic state created as the result of the lockdown was the main contributing factor which gives rise to substance abuse, depression, which collectively lead to violence
6.Endoscopic ultrasound-guided coiling and glue is safe and superior to endoscopic glue injection in gastric varices with severe liver disease: a retrospective case control study
Kapil D. JAMWAL ; Rajesh K. PADHAN ; Atul SHARMA ; Manoj K. SHARMA
Clinical Endoscopy 2023;56(1):65-74
Background/Aims:
Gastric varices (GV) are present in 25% of cirrhotic patients with high rates of rebleeding and mortality. Data on endoscopic ultrasound (EUS)-guided treatment in severe liver disease (model for end stage liver disease sodium [MELD-Na] >18 and Child-Turcotte-Pugh [CTP] C with GV) are scarce. Thus, we performed a retrospective comparison of endoscopic glue injection with EUS-guided therapy in cirrhotic patients with large GV.
Methods:
A retrospective study was performed in the tertiary hospitals of India. A total of 80 patients were recruited. The inclusion criteria were gastroesophageal varices type 2, isolated gastric varices type 1, bleeding within 6 weeks, size of GV >10 mm, and a MELD-Na >18. Treatment outcomes and complications of endoscopic glue injection and EUS-guided GV therapy were compared.
Results:
In this study, the patients’ age, sex, liver disease severity (CTP, MELD-Na) and clinical parameters were comparable. The median number of procedures, injected glue volume, complications, and GV obturation were better in the EUS group, respectively. On subgroup analysis of the EUS method (e.g., direct gastric fundus vs. paragastric collateral [PGC] coil placement), PGC coil placement showed decreased coil requirement, less injected glue volume, decreased luminal coil extrusion, and increased successful GV obturation.
Conclusions
EUS-guided treatment is more efficient and safer, and requires a smaller number of treatment sessions, as compared to endoscopic treatment in severe liver disease patients with large GV. Furthermore, PGC coil placement increases the complete obliteration of GV.
7.Brain metastasis of papillary ovarian adenocarcinoma
Sonia Chhabra ; Niti Dalal ; Sunita Singh
Philippine Journal of Pathology 2022;7(1):50-52
Brain metastasis from epithelial ovarian cancer is a rare diagnostic entity with a reported incidence of 1- 2%. Serous epithelial ovarian cancer is usually associated with a poor prognosis and is the most common malignancy metastasizing to the brain. The median time from primary diagnosis to development of cerebral lesions is directly correlated with the initial tumour grade and stage. The median survival after diagnosis of brain metastases is 6 months. It is suggested that brain imaging studies should be included in the follow up of patients after treatment for ovarian carcinoma. We report a case of brain metastasis of ovarian adenocarcinoma 2 years post-surgery and six cycles of chemotherapy.
Brain
;
Neoplasm Metastasis
;
Adenocarcinoma
8.Optimal panel of immunohistochemistry for the diagnosis of B-cell non-Hodgkin lymphoma using bone marrow biopsy: a tertiary care center study
Nisha MARWAH ; Manali SATIZA ; Niti DALAL ; Sudhir ATRI ; Monika GUPTA ; Sunita SINGH ; Rajeev SEN
Blood Research 2021;56(1):26-30
Background:
Morphological diagnosis of non-Hodgkin lymphoma (NHL) is usually based on lymph node biopsy. Bone marrow biopsy (BMB) is important for staging, and morphology alone can be challenging for subtyping. Immunohistochemistry (IHC) allows a more precise diagnosis and characterization of NHL using monoclonal antibodies. However, there is a need for a minimal panel that can provide maximum information at an affordable cost.
Methods:
All newly diagnosed cases of B-cell NHL with bone marrow infiltration between 2017 and 2019 were included. BMB was the primary procedure for diagnosing B-cell NHL. Subtyping of lymphomas was performed by immunophenotyping using a panel of monoclonal antibodies on IHC. The primary diagnostic panel of antibodies for B-cell NHL included CD19, CD20, CD79, CD5, CD23, CD10, Kappa, and Lambda. The extended panel of antibodies for further subtyping included CD30, CD45, CD56, Cyclin D1, BCL2, and BCL6.
Results:
All cases of B-cell NHL were classified into the chronic lymphocytic leukemia (CLL) and non-CLL groups based on morphology and primary IHC panel. In the CLL group, the most significant findings were CD5 expression, CD23 expression, dim CD79 expression, and weak surface immunoglobulin (Ig) positivity. In the non-CLL group, they were CD5 expression, positive or negative CD23 expression, strong CD79 expression, and strong surface Ig expression. An extended panel was used for further subtyping of non-CLL cases, which comprised CD10, Cyclin D1, BCL2, and BCL6.
Conclusion
We propose a two-tier approach for immunophenotypic analysis of newly diagnosed B-cell NHL cases with a minimum primary panel including CD5, CD23, CD79, Kappa, and Lambda for differentiation into CLLon-CLL group and Kappa and Lambda for clonality assessment. An extended panel may be used wherever required for further subtyping of non-CLL.
9.Clinical features and management of COVID-19: A systematic review
Daha, S.K. ; Koirala, B. ; Chapagain, D. ; Lohani, P. ; Acharya, S. ; Sharma, P.
Tropical Biomedicine 2020;37(No.2):409-420
Novel coronavirus disease, the latest world pandemic is one of the most contagious viral infections to date. There has been a lack of uniformity on recognizing this condition clinically because of poorly understood pathophysiology and clinical nature. Also due to ongoing clinical trials, its management is also varied. This is a systematic review from evidence-based studies until March 1st, 2020, covering an update on its clinical features and management. This study shows the multisystem involvement of COVID-19 with dominant respiratory features followed by the musculoskeletal, gastrointestinal system and others. The clinical features varied from asymptomatic to severe forms. Major causes of fatality were acute respiratory distress syndrome, shock, acute cardiac injury, acute kidney injury, rhabdomyolysis, and arrhythmia. Major modalities of management included supportive, antiviral and antibiotic therapy. There was no direct relationship between the specific treatment and the outcome.
10.Loss of oral mucosal stem cell markers in oral submucous fibrosis and their reactivation in malignant transformation.
Mohit SHARMA ; Felipe Paiva FONSECA ; Keith D HUNTER ; Raghu RADHAKRISHNAN
International Journal of Oral Science 2020;12(1):23-23
The integrity of the basal stem cell layer is critical for epithelial homoeostasis. In this paper, we review the expression of oral mucosal stem cell markers (OM-SCMs) in oral submucous fibrosis (OSF), oral potentially malignant disorders (OPMDs) and oral squamous cell carcinoma (OSCC) to understand the role of basal cells in potentiating cancer stem cell behaviour in OSF. While the loss of basal cell clonogenicity triggers epithelial atrophy in OSF, the transition of the epithelium from atrophic to hyperplastic and eventually neoplastic involves the reactivation of basal stemness. The vacillating expression patterns of OM-SCMs confirm the role of keratins 5, 14, 19, CD44, β1-integrin, p63, sex-determining region Y box (SOX2), octamer-binding transcription factor 4 (Oct-4), c-MYC, B-cell-specific Moloney murine leukaemia virus integration site 1 (Bmi-1) and aldehyde dehydrogenase 1 (ALDH1) in OSF, OPMDs and OSCC. The downregulation of OM-SCMs in the atrophic epithelium of OSF and their upregulation during malignant transformation are illustrated with relevant literature in this review.
Animals
;
Carcinoma, Squamous Cell
;
pathology
;
Cell Transformation, Neoplastic
;
pathology
;
Mice
;
Mouth Mucosa
;
Mouth Neoplasms
;
pathology
;
Oral Submucous Fibrosis
;
pathology
;
Stem Cells


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