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Anti-Apoptotic Protein Expression

Molecular classification
BCL-2 Family, Protein
01

Overview

Anti-apoptotic protein expression refers to the cellular production of proteins that inhibit apoptosis, the programmed cell death process. These proteins, primarily from the BCL-2 family (BCL-2, BCL-XL, MCL-1, A1/BFL-1, BCL-W), are crucial for cell survival by blocking pro-apoptotic signals and pathways, preventing mitochondrial outer membrane permeabilization (MOMP), and inhibiting caspase activation. Dysregulation or overexpression is implicated in cancer and drug resistance, making them important therapeutic targets.

Other names
BCL-2 family proteinsPro-survival proteinsApoptosis inhibitors
02

Mechanism of action

Inhibition of pro-apoptotic proteins (BAX, BAK, BIM, PUMA), prevention of mitochondrial outer membrane permeabilization (MOMP), and blocking caspase activation.

03

Biological functions

Apoptosis inhibitionCell survivalTissue homeostasisEmbryonic development
04

Disease associations

CancerDrug resistanceAutoimmune disorders
05

Safety considerations

Overexpression can lead to cancer progression and drug resistanceInhibition may induce unwanted apoptosis in healthy cells
06

Biomarkers

BCL-2 expression levelsBCL-XL expression levelsMCL-1 expression levels

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