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: Acute endothelial cell apoptosis and microvascular compromise couple gastrointestinal tract irradiation to reproductive death of intestinal crypt stem cell clonogens ( SCCs ) following high-dose radiation . Genetic or pharmacologic inhibition of endothelial apoptosis prevents intestinal damage , but as the radiation dose is escalated , SCCs become directly susceptible to an alternate cell death mechanism , mediated via ceramide synthase ( CS)-stimulated de novo synthesis of the proapoptotic sphingolipid ceramide , and p53-independent apoptosis of crypt SCCs . We previously reported that ataxia-telangiectasia mutated deficiency resets the primary radiation lethal pathway , allowing CS-mediated apoptosis at the low-dose range of radiation . The mechanism for this event , termed target reordering , remains unknown . Here , we show that inactivation of DNA damage repair pathways signals CS-mediated apoptosis in crypt SCCs , presumably via persistent unrepaired DNA double-strand breaks ( DSBs ) . Genetic loss of function of sensors and transducers of DNA DSB repair confers the CS-mediated lethal pathway in intestines of sv129/B6Mre11(ATLD1/ATLD1) and C57BL/6(Prkdc/SCID) ( severe combined immunodeficient ) mice exposed to low-dose radiation . In contrast , CS-mediated SCC lethality was mitigated in irradiated gain-of-function Rad50(s/s) mice , and epistasis studies order Rad50 upstream of Mre11 . These studies suggest unrepaired DNA DSBs as causative in target reordering in intestinal SCCs . As such , we provide an in vivo model of DNA damage repair that is standardized , can be exploited to understand allele-specific regulation in intact tissue , and is pharmacologically tractable .
    OUTPUT:

agent
genomic instability and mutation
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.
    ###
    INPUT: Acute endothelial cell apoptosis and microvascular compromise couple gastrointestinal tract irradiation to reproductive death of intestinal crypt stem cell clonogens ( SCCs ) following high-dose radiation . Genetic or pharmacologic inhibition of endothelial apoptosis prevents intestinal damage , but as the radiation dose is escalated , SCCs become directly susceptible to an alternate cell death mechanism , mediated via ceramide synthase ( CS)-stimulated de novo synthesis of the proapoptotic sphingolipid ceramide , and p53-independent apoptosis of crypt SCCs . We previously reported that ataxia-telangiectasia mutated deficiency resets the primary radiation lethal pathway , allowing CS-mediated apoptosis at the low-dose range of radiation . The mechanism for this event , termed target reordering , remains unknown . Here , we show that inactivation of DNA damage repair pathways signals CS-mediated apoptosis in crypt SCCs , presumably via persistent unrepaired DNA double-strand breaks ( DSBs ) . Genetic loss of function of sensors and transducers of DNA DSB repair confers the CS-mediated lethal pathway in intestines of sv129/B6Mre11(ATLD1/ATLD1) and C57BL/6(Prkdc/SCID) ( severe combined immunodeficient ) mice exposed to low-dose radiation . In contrast , CS-mediated SCC lethality was mitigated in irradiated gain-of-function Rad50(s/s) mice , and epistasis studies order Rad50 upstream of Mre11 . These studies suggest unrepaired DNA DSBs as causative in target reordering in intestinal SCCs . As such , we provide an in vivo model of DNA damage repair that is standardized , can be exploited to understand allele-specific regulation in intact tissue , and is pharmacologically tractable .
    OUTPUT:
