human
The task is to decide the Hallmarks of Cancer (HOC) taxonomy of the article based on its abstract. The input is an abstract text. There are 10 topics you will need to decide whether the article is related to. Topics: sustaining proliferative signaling, evading growth suppressors, resisting cell death, enabling replicative immortality, inducing angiogenesis, activating invasion and metastasis, genomic instability and mutation, tumor promoting inflammation, cellular energetics, avoiding immune destruction. The output should be topics from the above 10 topics, that are related to the input article. Please note one article can be related to multiple topics. Output format: provide a semicolon-separated list of relevant topics.
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    INPUT: A large number of human cancers display alterations in the Ink4a/cyclin D/Cdk4 genetic pathway , suggesting that activation of Cdk4 plays an important role in oncogenesis . Here we report that Cdk4-null mouse embryonic fibroblasts are resistant to transformation in response to Ras activation with dominant-negative ( DN ) p53 expression or in the Ink4a/Arf-null background , judged by foci formation , anchorage-independent growth , and tumorigenesis in athymic mice . Cdk4-null fibroblasts proliferate at normal rates during early passages . Whereas Cdk4(+/+)Ink4a/Arf(-/-) cells are immortal in culture , Cdk4(-/-)Ink4a/Arf(-/-) cells undergo senescence during continuous culture , as do wild-type cells . Activated Ras also induces premature senescence in Cdk4(-/-)Ink4a/Arf(-/-) cells and Cdk4(-/-) cells with DNp53 expression . Thus , Cdk4 deficiency causes senescence in a unique Arf/p53-independent manner , which accounts for the loss of transformation potential . Cdk4-null cells express high levels of p21(Cip1/Waf1) with increased protein stability . Suppression of p21(Cip1/Waf1) by small interfering RNA ( siRNA ) , as well as expression of HPV-E7 oncoprotein , restores immortalization and Ras-mediated transformation in Cdk4(-/-)Ink4a/Arf(-/-) cells and Cdk4(-/-) cells with DNp53 expression . Therefore , Cdk4 is essential for immortalization , and suppression of Cdk4 could be a prospective strategy to recruit cells with inactive Arf/p53 pathway to senescence .
    OUTPUT:

agent
enabling replicative immortality
The task is to decide the Hallmarks of Cancer (HOC) taxonomy of the article based on its abstract. The input is an abstract text. There are 10 topics you will need to decide whether the article is related to. Topics: sustaining proliferative signaling, evading growth suppressors, resisting cell death, enabling replicative immortality, inducing angiogenesis, activating invasion and metastasis, genomic instability and mutation, tumor promoting inflammation, cellular energetics, avoiding immune destruction. The output should be topics from the above 10 topics, that are related to the input article. Please note one article can be related to multiple topics. Output format: provide a semicolon-separated list of relevant topics.
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    INPUT: A large number of human cancers display alterations in the Ink4a/cyclin D/Cdk4 genetic pathway , suggesting that activation of Cdk4 plays an important role in oncogenesis . Here we report that Cdk4-null mouse embryonic fibroblasts are resistant to transformation in response to Ras activation with dominant-negative ( DN ) p53 expression or in the Ink4a/Arf-null background , judged by foci formation , anchorage-independent growth , and tumorigenesis in athymic mice . Cdk4-null fibroblasts proliferate at normal rates during early passages . Whereas Cdk4(+/+)Ink4a/Arf(-/-) cells are immortal in culture , Cdk4(-/-)Ink4a/Arf(-/-) cells undergo senescence during continuous culture , as do wild-type cells . Activated Ras also induces premature senescence in Cdk4(-/-)Ink4a/Arf(-/-) cells and Cdk4(-/-) cells with DNp53 expression . Thus , Cdk4 deficiency causes senescence in a unique Arf/p53-independent manner , which accounts for the loss of transformation potential . Cdk4-null cells express high levels of p21(Cip1/Waf1) with increased protein stability . Suppression of p21(Cip1/Waf1) by small interfering RNA ( siRNA ) , as well as expression of HPV-E7 oncoprotein , restores immortalization and Ras-mediated transformation in Cdk4(-/-)Ink4a/Arf(-/-) cells and Cdk4(-/-) cells with DNp53 expression . Therefore , Cdk4 is essential for immortalization , and suppression of Cdk4 could be a prospective strategy to recruit cells with inactive Arf/p53 pathway to senescence .
    OUTPUT:
