# CD81 inhibits the proliferation of acute megakaryoblastic leukemia cells

## TL;DR

This study shows that CD81 helps AMKL cancer cells grow, and reducing CD81 can slow their growth and increase cell death.

## Contribution

The study demonstrates CD81's role in AMKL proliferation and suggests it as a potential therapeutic target.

## Key findings

- CD81 knockdown inhibits AMKL cell proliferation in vitro.
- Reducing CD81 increases apoptosis in AMKL cells.

## Abstract

CD81 is a cell surface protein that plays an important part in tumor development. Several studies have shown that CD81 plays a role in cancer cell proliferation, invasion, and metastasis, particularly in leukemia. It has been reported that CD81 is overexpressed in non-Down syndrome acute megakaryoblastic leukemia (non-DS AMKL). In this article, we hypothesize that CD81 may play a vital role in acute megakaryoblastic leukemia (AMKL). We constructed the CD81 knockdown cell line using shRNA and found that CD81 knockout can inhibit the proliferation of AMKL and increase the apoptosis of AMKL in vitro. Therefore, CD81 may be a target of AMKL.