Microenvironmental elements singularity synergistically regulate the behavior and chemosensitivity of endometrioid...

Area of Science:

• Oncology
• Biomedical Engineering
• Cancer Biology

Background:

• The tumor microenvironment significantly influences cancer progression and treatment response.
• Understanding the interplay of biological, physical, and chemical factors is crucial for cancer research.
• Endometrioid carcinoma presents unique microenvironmental characteristics influenced by obesity and anatomical factors.

Purpose of the Study:

• To investigate the individual and combined effects of obesity (biological), fluid flow (physical), and chemotherapy (chemical) on endometrioid carcinoma.
• To develop a novel in vitro model simulating key microenvironmental elements of endometrioid carcinoma.
• To elucidate the mechanisms of chemoresistance and its modulation by microenvironmental factors.

Main Methods:

• Development of an adipose tissue fragments (ATFs)-embedded cell disc culture system.
• Utilizing a rotational culture method to simulate fluid flow and create carcinoma-stroma interactions.
• Assessing cellular proliferation, morphological changes, and signaling pathway activation (ERK, p38).
• Evaluating chemoresistance to cis-diamminedichloro-platinum (CDDP).

Main Results:

• Adipose tissue fragments and fluid flow synergistically or individually impacted endometrioid carcinoma cell proliferation and morphology.
• These factors modulated the expression of extracellular signal-regulated kinase and p38 signaling pathways.
• Adipose tissue induced chemoresistance to CDDP, an effect abrogated by fluid flow.
• The model successfully demonstrated the individual and synergistic effects of the studied microenvironmental elements.

Conclusions:

• A simple, reconstructed in vitro model effectively replicates key microenvironmental factors of endometrioid carcinoma.
• This model provides insights into the complex interactions influencing cancer behavior and drug sensitivity.
• The findings highlight the potential of this model for advancing endometrioid carcinoma research and therapeutic strategy development.