BRN2 is a non-canonical melanoma tumor-suppressor.
BRN2 is a non-canonical melanoma tumor-suppressor.
复制标题
DOI:
10.1038/s41467-021-23973-5
复制
发表时间:
2021-06-17
影响因子:
16.6
通讯作者:
Larue L
中科院分区:
文献类型:
--
作者:
Hamm M;Sohier P;Petit V;Raymond JH;Delmas V;Le Coz M;Gesbert F;Kenny C;Aktary Z;Pouteaux M;Rambow F;Sarasin A;Charoenchon N;Bellacosa A;Sanchez-Del-Campo L;Mosteo L;Lauss M;Meijer D;Steingrimsson E;Jönsson GB;Cornell RA;Davidson I;Goding CR;Larue L
While the major drivers of melanoma initiation, including activation of NRAS/BRAF and loss of PTEN or CDKN2A, have been identified, the role of key transcription factors that impose altered transcriptional states in response to deregulated signaling is not well understood. The POU domain transcription factor BRN2 is a key regulator of melanoma invasion, yet its role in melanoma initiation remains unknown. Here, in a BrafV600E PtenF/+ context, we show that BRN2 haplo-insufficiency promotes melanoma initiation and metastasis. However, metastatic colonization is less efficient in the absence of Brn2. Mechanistically, BRN2 directly induces PTEN expression and in consequence represses PI3K signaling. Moreover, MITF, a BRN2 target, represses PTEN transcription. Collectively, our results suggest that on a PTEN heterozygous background somatic deletion of one BRN2 allele and temporal regulation of the other allele elicits melanoma initiation and progression. The transcription factor BRN2 regulates melanoma migration and invasion, but its role during melanoma initiation is unclear. Here the authors show that BRN2 is a haplo-insufficient tumour suppressor that positively regulates PTEN expression and in the context of BRAF mutation and heterozygous PTEN, BRN2 loss promotes melanoma initiation and progression.
登录
查看更多内容
影响因子:
16.6
作者:
Conde-Perez A;Gros G;Longvert C;Pedersen M;Petit V;Aktary Z;Viros A;Gesbert F;Delmas V;Rambow F;Bastian BC;Campbell AD;Colombo S;Puig I;Bellacosa A;Sansom O;Marais R;Van Kempen LC;Larue L
通讯作者:
Larue L
影响因子:
6.6
作者:
Cirenajwis H;Lauss M;Ekedahl H;Törngren T;Kvist A;Saal LH;Olsson H;Staaf J;Carneiro A;Ingvar C;Harbst K;Hayward NK;Jönsson G
通讯作者:
Jönsson G
影响因子:
3.5
作者:
Bondurand, N;Pingault, V;Goossens, M
通讯作者:
Goossens, M
影响因子:
4.3
作者:
Aktary, Zackie;Corvelo, Andre;Larue, Lionel
通讯作者:
Larue, Lionel
影响因子:
4.3
作者:
Dhomen, Nathalie;Dias, Silvy Da Rocha;Marais, Richard
通讯作者:
Marais, Richard