Apoptotic bone marrow CD34+ cells in cirrhotic patients

Area of Science:

• Hematology
• Hepatology
• Cell Biology

Background:

• Post-hepatitis cirrhosis is a severe liver condition.
• Hematopoietic stem and progenitor cells (HSPCs), including CD34+ cells, are crucial for blood cell formation.
• Cirrhosis can affect various bodily functions, potentially impacting hematopoiesis.

Purpose of the Study:

• To determine the frequency and apoptosis levels of CD34+ cells in the bone marrow of patients with post-hepatitis cirrhosis.
• To compare these levels with those in healthy individuals.

Main Methods:

• Flow cytometry was used to quantify bone marrow CD34+ cells and apoptotic CD34+ cells.
• The study included 31 patients with post-hepatitis cirrhosis and 15 healthy controls.
• Liver function parameters were assessed in the cirrhosis group.

Main Results:

• Patients with post-hepatitis cirrhosis had a significantly higher percentage of apoptotic CD34+ cells (15.00% ± 15.81%) compared to controls (5.73% ± 1.57%).
• The percentage of apoptotic CD34+ cells was higher in Child-Pugh B+C cirrhotic patients (20.92% ± 18.5%) than in Child-Pugh A patients (6.25% ± 3.30%).
• Late apoptotic CD34+ cell levels correlated positively with total bilirubin and aspartate aminotransferase serum levels.

Conclusions:

• The increased apoptosis of CD34+ cells in cirrhotic patients suggests a potential impairment in the differentiation of hematopoietic progenitor cells into mature blood cells.
• These findings may indicate a mechanism contributing to cytopenias observed in liver cirrhosis.