» Articles » PMID: 21531907

Transcription Cofactors TRIM24, TRIM28, and TRIM33 Associate to Form Regulatory Complexes That Suppress Murine Hepatocellular Carcinoma

Abstract

TRIM24 (TIF1α), TRIM28 (TIF1β), and TRIM33 (TIF1γ) are three related cofactors belonging to the tripartite motif superfamily that interact with distinct transcription factors. TRIM24 interacts with the liganded retinoic acid (RA) receptor to repress its transcriptional activity. Germ line inactivation of TRIM24 in mice deregulates RA-signaling in hepatocytes leading to the development of hepatocellular carcinoma (HCC). Here we show that TRIM24 can be purified as at least two macromolecular complexes comprising either TRIM33 or TRIM33 and TRIM28. Somatic hepatocyte-specific inactivation of TRIM24, TRIM28, or TRIM33 all promote HCC in a cell-autonomous manner in mice. Moreover, HCC formation upon TRIM24 inactivation is strongly potentiated by further loss of TRIM33. These results demonstrate that the TIF1-related subfamily of TRIM proteins interact both physically and functionally to modulate HCC formation in mice.

Citing Articles

The Immune Modulatory Role of TIF1 Proteins.

Zhu Q, Xiao Y Adv Exp Med Biol. 2024; 1466:89-99.

PMID: 39546137 DOI: 10.1007/978-981-97-7288-9_6.


The tripartite motif-containing 24 is a multifunctional player in human cancer.

Yao Y, Zhou S, Yan Y, Fu K, Xiao S Cell Biosci. 2024; 14(1):103.

PMID: 39160596 PMC: 11334367. DOI: 10.1186/s13578-024-01289-3.


Multi-Omics Characterization of E3 Regulatory Patterns in Different Cancer Types.

Li Z, Wan J, Li S, Tang Y, Lin Y, Ni J Int J Mol Sci. 2024; 25(14).

PMID: 39062881 PMC: 11276688. DOI: 10.3390/ijms25147639.


TRIM33 loss in multiple myeloma is associated with genomic instability and sensitivity to PARP inhibitors.

McAvera R, Morgan J, Herrero A, Mills K, Crawford L Sci Rep. 2024; 14(1):8797.

PMID: 38627415 PMC: 11021562. DOI: 10.1038/s41598-024-58828-8.


The homeobox transcription factor DUXBL controls exit from totipotency.

Vega-Sendino M, Luttmann F, Olbrich T, Chen Y, Kuenne C, Stein P Nat Genet. 2024; 56(4):697-709.

PMID: 38509386 PMC: 11149696. DOI: 10.1038/s41588-024-01692-z.


References
1.
Remboutsika E, Lutz Y, Gansmuller A, Vonesch J, Losson R, Chambon P . The putative nuclear receptor mediator TIF1alpha is tightly associated with euchromatin. J Cell Sci. 1999; 112 ( Pt 11):1671-83. DOI: 10.1242/jcs.112.11.1671. View

2.
Bai X, Kim J, Yang Z, Jurynec M, Akie T, Lee J . TIF1gamma controls erythroid cell fate by regulating transcription elongation. Cell. 2010; 142(1):133-43. PMC: 3072682. DOI: 10.1016/j.cell.2010.05.028. View

3.
Ignat M, Teletin M, Tisserand J, Khetchoumian K, Dennefeld C, Chambon P . Arterial calcifications and increased expression of vitamin D receptor targets in mice lacking TIF1alpha. Proc Natl Acad Sci U S A. 2008; 105(7):2598-603. PMC: 2268182. DOI: 10.1073/pnas.0712030105. View

4.
Morsut L, Yan K, Enzo E, Aragona M, Soligo S, Wendling O . Negative control of Smad activity by ectodermin/Tif1gamma patterns the mammalian embryo. Development. 2010; 137(15):2571-8. DOI: 10.1242/dev.053801. View

5.
Postic C, Magnuson M . DNA excision in liver by an albumin-Cre transgene occurs progressively with age. Genesis. 2000; 26(2):149-50. DOI: 10.1002/(sici)1526-968x(200002)26:2<149::aid-gene16>3.0.co;2-v. View