Publications

Effects of GlyT1 inhibition on erythropoiesis and iron homeostasis in rats

Highlights

•GlyT1 inhibition reduces glycine uptake in erythrocyte precursors
•Intracellular glycine depletion affects rate of heme biosynthesis
•Reduction in cellular hemoglobin manifests as a microcytic hypochromic anemia
•GlyT1 restricted anemia does not suppress hepcidin synthesis
•Increased systemic iron acquisition does not occur in response to GlyT1 inhibition

Abstract

Modeling colorectal cancer using CRISPR-Cas9-mediated engineering of human intestinal organoids.

Human colorectal tumors bear recurrent mutations in genes encoding proteins operative in the WNT, MAPK, TGF-β, TP53 and PI3K pathways. Although these pathways influence intestinal stem cell niche signaling, the extent to which mutations in these pathways contribute to human colorectal carcinogenesis remains unclear. Here we use the CRISPR-Cas9 genome-editing system to introduce multiple such mutations into organoids derived from normal human intestinal epithelium.

Low prevalence of transcriptionally active human papilloma virus in Indian patients with HNSCC and leukoplakia

Abstract

Objectives

In the present study, we comprehensively analyzed the prevalence of transcriptionally active HPV in tissue samples of Indian patients with leukoplakia - predominantly hyperplastic lesions and HNSCC. In addition, saliva samples from patients with HNSCC were screened for HPV detection.

Study Design

Loss of expression of AZGP1 is associated with worse clinical outcomes in a multi-institutional radical prostatectomy cohort.

Abstract

BACKGROUND:

Given the uncertainties inherent in clinical measures of prostate cancer aggressiveness, clinically validated tissue biomarkers are needed. We tested whether Alpha-2-Glycoprotein 1, Zinc-Binding (AZGP1) protein levels, measured by immunohistochemistry, and RNA expression, by RNA in situ hybridization (RISH), predict recurrence after radical prostatectomy independent of clinical and pathological parameters.

METHODS:

The pro-survival IKK-related kinase IKKepsilon integrates LPS and IL-17A signaling cascades to promote Wnt-dependent tumor development in the intestine

Constitutive Wnt signaling promotes intestinal cell proliferation, but signals from the tumor microenvironment are also required to support cancer development. The role that signaling proteins play to establish a tumor microenvironment has not been extensively studied. Therefore, we assessed the role of the proinflammatory Ikk-related kinase Ikkε in Wnt-driven tumor development.

Linear viral load increase of a single HPV-type in women with multiple HPV infections predicts progression to cervical cancer

Persistent high-risk human papillomavirus (HPV) infection is strongly associated with development of high-grade cervical intraepithelial neoplasia or cancer (CIN3+). In single type infections serial type-specific viral-load measurements predict the natural history of the infection. In infections with multiple HPV-types, the individual type-specific viral-load profile could distinguish progressing HPV-infections from regressing infections.

Neuronal subtypes and diversity revealed by single-nucleus RNA sequencing of the human brain

The human brain has enormously complex cellular diversity and connectivities fundamental to our neural functions, yet difficulties in interrogating individual neurons has impeded understanding of the underlying transcriptional landscape. We developed a scalable approach to sequence and quantify RNA molecules in isolated neuronal nuclei from a postmortem brain, generating 3227 sets of single-neuron data from six distinct regions of the cerebral cortex.

Prognostic significance of human papillomavirus viral load in correlation with different therapeutic modalities in cervical cancer patients

Abstract

Purpose

High-risk human papillomavirus (HR-HPV) infections was the causal factor in the development of cervical cancer, but the significance of HPV viral load in the prediction of the response to current therapeutic approaches had not reached consensus. The present study was performed to assess the high risk HPV viral load of cervical cancer patients who underwent radiotherapy alone or in combination with chemotherapy or hyperthermotherapy or both in correlation to long-term survival.

Methods

Effect of human papillomavirus 16 oncoproteins on oncostatin M upregulation in oral squamous cell carcinoma

Human papillomavirus (HPV) infection modulates several host cytokines contributing to cancer development. Oncostatin M (OSM), an IL-6 family cytokine, acts to promote cell senescence and inhibit growth. Its dysregulation promotes cell survival, cell proliferation and metastasis in various malignancies. The effect of HPV on OSM dysregulation has not been investigated. To elucidate this, immunohistochemistry was used on formalin-fixed, paraffin-embedded oral squamous cell carcinoma (OSCC) tissues: HPV-positive (50) and HPV-negative (50) cases.

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