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Subcellular Fractionation of Primary Chronic Lymphocytic Leukemia Cells to Monitor Nuclear/Cytoplasmic Protein Trafficking

Subcellular Fractionation of Primary Chronic Lymphocytic Leukemia Cells to Monitor Nuclear/Cytoplasmic Protein Trafficking

Published on: October 23, 2019

Extracellular vesicles in chronic lymphocytic leukemia.

Franziska Haderk¹, Bola Hanna, Karsten Richter

¹Department of Molecular Genetics, German Cancer Research Center (DKFZ), Heidelberg, Germany.

Leukemia & Lymphoma

|July 16, 2013

Summary

Extracellular vesicles (EVs) from chronic lymphocytic leukemia (CLL) patients were isolated and analyzed. These EVs carry proteins and may help CLL cells create a supportive microenvironment.

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In Vivo Immunogenicity Screening of Tumor-Derived Extracellular Vesicles by Flow Cytometry of Splenic T Cells

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Published on: September 23, 2021

Area of Science:

Cell Biology
Oncology
Biochemistry

Background:

Extracellular vesicles (EVs) are key mediators of intercellular communication.
EVs transfer RNA and proteins, influencing target cell behavior.
The cellular microenvironment is crucial in chronic lymphocytic leukemia (CLL) pathogenesis.

Purpose of the Study:

To investigate the role of EVs in CLL.
To characterize EVs isolated from CLL patients and CLL cells.
To determine if EVs contribute to a pro-survival microenvironment in CLL.

Main Methods:

Isolation of EVs from blood plasma of CLL patients.
Isolation of EVs from primary CLL cells in culture supernatant.
Proteomic profiling using SDS-PAGE and mass spectrometry.

Main Results:

Successfully isolated EVs within the 20–300 nm range.
Identified a distinct EV-specific protein profile.
Demonstrated EV-mediated communication in CLL.

Conclusions:

EVs are an important communication mechanism for CLL cells.
EVs may contribute to establishing a pro-survival microenvironment for CLL cells.
Further research into EV function in CLL is warranted.