Lack of fibro-inflammatory response in human mammary adipose tissue in obesity.

Background: Understanding how obesity impacts human mammary adipose tissue (MAT) biology is crucial for deciphering its role in mammary epithelium during both physiological and pathophysiological processes, including breast cancer. Hypertrophic mammary adipocytes and Crown-Like Structures are present in MAT of patients with obesity but whether these changes initiate a fibro-inflammatory response at the tissue level remains insufficiently explored.

Objective: We investigated the markers of adipose tissue dysfunction (immune cell infiltration, secretion pattern and fibrosis) in tumor-free MAT of patients with obesity versus patients who are lean.

Fueling the Tumor Microenvironment with Cancer-Associated Adipocytes.

Despite their abundance throughout the body, adipocytes are often ignored for their contributions within the tumor microenvironment (TME). However, their role in fueling cancer is becoming increasingly apparent as interest in the TME has seen remarkable advances in recent years. A seminal study by Dirat and colleagues highlighted the essential impact of the peritumoral adipose tissue in breast cancer progression and was among the first to demonstrate that tumor cells can reprogram adipocytes within their immediate niche to adopt unique characteristics.

A novel 3D culture model for human primary mammary adipocytes to study their metabolic crosstalk with breast cancer in lean and obese conditions.

Obesity is a negative prognosis factor for breast cancer. Yet, the biological mechanisms underlying this effect are still largely unknown. An emerging hypothesis is that the transfer of free fatty acids (FFA) between adipocytes and tumor cells might be altered under obese conditions, contributing to tumor progression.

Evaluation of Pre-Therapeutic Assessment in Endometrial Cancer Staging.

Objective: The aim of this retrospective cohort study is to evaluate the concordance between the preoperative MRI and histology data with the final histopathological examination.

Method: This is a retrospective observational study of 183 patients operated for endometrioid cancer between January 2009 and December 2019 in the surgical oncology department of the Lorraine Cancer Institute (ICL) in Vandœuvre-lès-Nancy. The patients included are all women operated on for endometrioid-type endometrial cancer over this period.