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《科学》 第392卷 第6794期 · 2026年4月9日 · 中文解读

白血病细胞的唾液酸保护盾

The sialic shield of leukemia cells · S. Canè and V. Bronte
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本文报道了Chung等人发现人类白血病细胞表面富含唾液酸的糖蛋白CD43形成物理屏障,抑制巨噬细胞的吞噬作用,并可能成为治疗急性髓系白血病的新靶点。
原文开头
A coat of sialylated protein protects human leukemia cells from destruction Stefania Canè and Vincenzo Bronte Immune cells continually detect, engulf, and destroy invasive microbes and cancer cells. This process, called phagocytosis, is carried out by macrophages that must distinguish between proengulfment signals and inhibitory (“don’t-eat-me”) warn- ings (1). Cluster of differentiation 47 (CD47), a cell-surface receptor, is the archetypal don’t-eat-me signal. Many cancers up- regulate CD47 expression to escape phagocytosis, and CD47 blockade promotes phagocytosis of cancer cells in mice (2). However, CD47 blockers have not shown clinical benefits in patients with acute my- eloid leukemia (AML), an aggressive cancer of blood immune cells (3–5). …
摘自《科学》(Science)第392卷 第6794期 · 2026年4月9日,S. Canè and V. Bronte。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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