Publications by authors named "Lele S"

Historically, the treatment of patients with advanced stage or recurrent endometrial cancer included paclitaxel plus carboplatin. Immunotherapy in combination with chemotherapy resulted in improved clinical outcomes in several solid tumors. In the phase 3 NRG GY018 study, pembrolizumab plus chemotherapy significantly improved investigator-assessed progression-free survival (PFS; primary endpoint) versus placebo plus chemotherapy in patients with advanced/metastatic/recurrent endometrial cancer regardless of mismatch repair status.

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Background: Adenosquamous Gallbladder Cancers (ASGBC) are rare variety of GBCs. Relative paucity of data with regards to the management of ASGBC exists.

Methods: Patients with diagnosis of ASGBC from January 2012 to March 2022 were categorised into 'Early', 'Locally advanced (LA)' and 'Metastatic (M)' ASGBC as per the predefined 'TMH Criteria'.

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Unlabelled: The ecdysoneless (ECD) mRNA and protein are overexpressed in breast cancer (BC), and its overexpression correlates with poor prognosis and short patient survival, particularly in ERBB2/HER2-positive BC. This study investigates the co-operative oncogenic mechanism of ECD and ERBB2 by deriving transgenic mice overexpressing ECD and/or ERBB2 (huHER2) in mammary epithelium under MMTV promoter, as well as human mammary immortal epithelial cell lines (hMECs) overexpressing ECD and/or ERBB2. While Tg mice developed more homogenous solid nodular carcinomas, double transgenic mice ( Tg) developed heterogenous and histologically aggressive mammary tumors with basal-like phenotype and epithelial mesenchymal transition (EMT) features, like Tg tumors, resembling more to patient tumors.

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The functional activation of the androgen receptor (AR) and its interplay with the aberrant Hh/Gli cascade are pivotal in the progression of castration-resistant prostate cancer (CRPC) and resistance to AR-targeted therapies. Our study unveiled a novel role of the truncated form of Gli (t-Gli3) in advancing CRPC. Investigation into Gli3 regulation revealed a Smo-independent mechanism for its activation.

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Purpose: We observed that the tumor microenvironment (TME) in metastatic epithelial ovarian cancer (EOC) and in other solid tumors can reprogram normal neutrophils to acquire a complement-dependent suppressor phenotype characterized by inhibition of stimulated T cell activation. This study aims to evaluate whether serum markers of neutrophil activation and complement at diagnosis of EOC would be associated with clinical outcomes.

Experimental Design: We conducted a two-center prospective study of patients with newly diagnosed EOC (N = 188).

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Advanced prostate cancer (PCa) remains a significant clinical challenge, and docetaxel plays a significant role in disease management. Despite the efficacy of docetaxel as a first-line chemotherapy, resistance often develops. We developed three clinically relevant in vitro PCa cell models and transcriptomic analysis identified that the Paf1/RNA polymerase II complex component (PAF1)-associated pluripotent-transcription factor (TF), SOX2, plays a crucial role in docetaxel resistance.

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Adenomatoid tumors are rare benign neoplasms arising from mesothelial cells, commonly found in the female genital system, particularly the uterus and fallopian tubes. The giant cystic variant of adenomatoid tumor is exceptionally rare and can cause massive growth mimicking malignant gynecological conditions. Histology and immunohistochemistry play a crucial role in confirming the diagnosis, with markers such as calretinin, D2-40, CK7, BAP1, ER, and WT1 proving useful.

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Article Synopsis
  • Linezolid, a commonly used antibiotic, can cause rare side effects like teeth discoloration, which isn't widely known compared to more familiar reactions like nausea or bone marrow suppression.
  • A case study reveals that a child treated with linezolid for bacterial meningitis developed brownish teeth discoloration, which was temporary and resolved after stopping the medication.
  • This instance highlights the need for awareness of lesser-known side effects of medications and suggests that teeth discoloration can occur earlier than previously documented.
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Key mechanisms underlying chronic pain occur within the dorsal horn. Genome-wide association studies (GWASs) have identified genetic variants predisposed to chronic pain. However, most of these variants lie within regulatory non-coding regions that have not been linked to spinal cord biology.

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Article Synopsis
  • * t-NEPCs often lack selectivity in treatment, using platinum-based drugs combined with etoposide or taxane, leading to toxicity issues that limit their effectiveness.
  • * Research indicates that the transcription factor Pax5 plays a crucial role in promoting neuronal characteristics in t-NEPC, and its depletion may enhance the sensitivity of these cells to taxane therapies like docetaxel.
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While better management of loco-regional prostate cancer (PC) has greatly improved survival, advanced PC remains a major cause of cancer deaths. Identification of novel targetable pathways that contribute to tumor progression in PC could open new therapeutic options. The di-ganglioside GD2 is a target of FDA-approved antibody therapies in neuroblastoma, but the role of GD2 in PC is unexplored.

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Background: Tuberous sclerosis complex (TSC) is a rare, autosomal dominant genetic disease that arises from TSC1 or TSC2 genetic mutations. These genetic mutations can induce the development of benign tumors in any organ system with significant clinical implications in morbidity and mortality. In rare instances, patients with TSC can have malignant tumors, including renal cell carcinoma (RCC) and pancreatic neuroendocrine tumor (PNET).

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Article Synopsis
  • * Recent updates to the NCCN Guidelines for Bladder Cancer reflect changes from the fifth edition of the WHO Classification of Tumours, ensuring alignment with new standards.
  • * The guidelines also introduce new treatment options for NMIBC that doesn't respond to bacillus Calmette-Guérin (BCG) therapy and provide updated recommendations for systemic therapy targeting advanced or metastatic bladder cancer.
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Across the world, the officially reported number of COVID-19 deaths is likely an undercount. Establishing true mortality is key to improving data transparency and strengthening public health systems to tackle future disease outbreaks. In this study, we estimated excess deaths during the COVID-19 pandemic in the Pune region of India.

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Objective: Circulating tumor DNA (ctDNA) detection is an emerging technique that identifies minimal residual disease in patients with solid tumors. ctDNA can act as an adjunct method to help overcome the limitations of positron emission tomography (PET) and select patients who are at high risk for recurrence.

Study Design: Retrospective Single Institutional Study.

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Millions of households globally rely on uncultivated ecosystems for their livelihoods. However, much of the understanding about the broader contribution of uncultivated ecosystems to human wellbeing is still based on a series of small-scale studies due to limited availability of large-scale datasets. We pooled together 11 comparable datasets comprising 232 settlements and 10,971 households in ten low-and middle-income countries, representing forest, savanna and coastal ecosystems to analyse how uncultivated nature contributes to multi-dimensional wellbeing and how benefits from nature are distributed between households.

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Background: Animals of many different species, trophic levels, and life history strategies migrate, and the improvement of animal tracking technology allows ecologists to collect increasing amounts of detailed data on these movements. Understanding when animals migrate is important for managing their populations, but is still difficult despite modelling advancements.

Methods: We designed a model that parametrically estimates the timing of migration from animal tracking data.

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Introduction: Mucin-producing urothelial-type adenocarcinoma of the prostate is a rare tumor that may not elevate serum prostate-specific antigen, creating significant diagnostic and monitoring challenges. We evaluate our case in detail and review prior studies to demonstrate that the pathologic and molecular features of this tumor are distinct from conventional prostate adenocarcinoma.

Case Presentation: Our patient had a remote history of radiation-treated conventional prostate adenocarcinoma and presented many years later with an abscess-like prostate mass leading to urinary obstruction and hematuria.

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Resistance to the current Androgen Receptor Signaling Inhibitor (ARSI) therapies has led to higher incidences of therapy-induced neuroendocrine-like prostate cancer (t-NEPC). This highly aggressive subtype with predominant small cell-like characteristics is resistant to taxane chemotherapies and has a dismal overall survival. t-NEPCs are mostly treated with platinum-based drugs with a combination of etoposide or taxane and have less selectivity and high systemic toxicity, which often limit their clinical potential.

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Background & Aims: Pancreatic ductal adenocarcinoma (PDAC) is characterized by desmoplastic stroma surrounding most tumors. Activated stromal fibroblasts, namely cancer-associated fibroblasts (CAFs), play a major role in PDAC progression. We analyzed whether CAFs influence acinar cells and impact PDAC initiation, that is, acinar-to-ductal metaplasia (ADM).

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Clear cell sarcoma (CCS) is a rare but aggressive malignancy that typically occurs in young adults and is characterized by soft tissue tumors of the extremities. CCS can be difficult to distinguish from metastatic melanoma based solely on histology and immunohistochemistry (IHC) because of the significant overlap between them. However, it is imperative to get an accurate clinical diagnosis, as it informs disease staging and treatment options for patient care.

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Periodontitis (PD) is a severe inflammatory gum pathology that damages the periodontal soft tissue and bone. It is highly prevalent in the US, affecting more than 47% of adults. Besides routine scaling and root planing, there are few effective treatments for PD.

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In scientific problems, an appropriate statistical model often involves a large number of canonical parameters. Often times, the quantities of scientific interest are real-valued functions of these canonical parameters. Statistical inference for a specified function of the canonical parameters can be carried out via the Bayesian approach by simply using the posterior distribution of the specified function of the parameter of interest.

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Purpose: Radiotherapy delivered at ultra-high-dose-rates (≥40 Gy/s), that is, FLASH, has the potential to effectively widen the therapeutic window and considerably improve the care of cancer patients. The underlying mechanism of the FLASH effect is not well understood, and commercial systems capable of delivering such dose rates are scarce. The purpose of this study was to perform the initial acceptance and commissioning tests of an electron FLASH research product for preclinical studies.

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Objectives: Clear cell carcinoma is a high-risk subtype of endometrial cancer. Some patients have a mixture of clear cell carcinoma with other histologic types (endometrioid or serous) or cannot be neatly assigned to one of these types. Protocol GOG-8032 within GOG-210 was designed to determine whether these tumors differ from pure clear cell carcinoma in stage at diagnosis, initial pattern of spread, or patient survival.

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