Table 2 BRD4 BD2 bromodomain selective inhibitors, PROTAC BRD4 protein degraders, and dual BRD4 and CBP/p300 bromodomain co-inhibitors.

From: Super-enhancers and the super-enhancer reader BRD4: tumorigenic factors and therapeutic targets

Targets

Compound

Structure

Functions

References

BD2 bromodomain selective inhibitor

ABBV-744

Induces anticancer effects against acute myeloid leukemia and prostate cancer in vitro and in mouse models with better toxicity profile than BD1 and BD2 bromodomain inhibitors

[55]

BD2 bromodomain selective inhibitor

GSK620

Suppresses inflammatory disease in preclinical models

[58]

PROTAC BRD4 protein degrader

ARV-771

Reduces castration-resistant prostate cancer cell proliferation and survival in vitro, and results in tumor regression in mice.

[60]

PROTAC BRD4 protein degrader

A1874

Combines JQ1 and the MDM2 antagonist idasanutlin activities, degrades BRD4 protein by 98% and stabilizes p53 protein. Reduces cancer cell proliferation and survival.

[61]

BRD4 and CBP/p300 bromodomain co-inhibitor

XP-524

Shows anticancer efficacy comparable to combination therapy with the BRD4 inhibitor JQ-1 and the CBP/p300 inhibitor SGC-CBP30 in pancreatic ductal adenocarcinoma cells.

[62]

BRD4 and CBP/p300 bromodomain co-inhibitor

NEO2734

Show more potent anticancer effects than single-agent BRD4 or CBP/p300 inhibitors alone. Induces colorectal cancer, leukemia and lymphoma cell apoptosis in vitro and in mouse models.

[63, 64]