Plasma Lipid Profile and Systemic Inflammation in Patients With Cancer Cachexia

Area of Science:

• Biochemistry
• Oncology
• Metabolism

Background:

• Cancer cachexia impacts 80% of advanced cancer patients, leading to poor prognosis with no effective treatments.
• This syndrome involves involuntary muscle and fat mass loss driven by systemic inflammation.
• White adipose tissue (WAT) plays a crucial role in cancer cachexia, characterized by increased lipolysis and inflammatory factor production.

Purpose of the Study:

• To characterize the plasma lipid profile in cachectic patients.
• To correlate fatty acid (FA) composition with circulating inflammatory markers.
• To determine if adipocyte-released fatty acids contribute to inflammation in cachexia.

Main Methods:

• A study involving 65 patients divided into three groups: control (N), weight-stable cancer (WSC), and cachectic cancer (CC).
• Analysis of plasma fatty acid profiles.
• Correlation of FA composition with pro-inflammatory cytokine expression.

Main Results:

• Significant differences in plasma FA profiles were observed among the control, WSC, and CC groups.
• Plasma FA composition in cachectic cancer patients positively correlated with pro-inflammatory cytokine expression.
• The ratio of saturated to unsaturated free fatty acids (FFA) emerged as a potential indicator for cachexia detection.

Conclusions:

• Plasma lipid profiles are significantly altered in cancer cachexia.
• Fatty acid composition is linked to systemic inflammation in cachectic patients.
• The saturated to unsaturated FFA ratio may serve as a biomarker for detecting cancer cachexia.