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: OBJECTIVES To investigate the effects of serotonin and melatonin ( MLT ) on the regulation of malignant growth and the activity of serotonin receptors ( 5HTR1a/-1b ) in prostate cancer ( PCa ) cell lines . MATERIALS AND METHODS In four PCa cell lines ( LNCaP , 22RV1 , PC3 , DU145 ) and two reference cell lines 5HTR1a and -1b , relative mRNA expression levels were assessed . Different serotonin and MLT receptor agonists and antagonists were used in stimulation and inhibition experiments . RESULTS mRNA expression of 5HTR1b was higher than that of 5HTR1a in all PCa cell lines . Serotonin showed a significant growth stimulatory effect in all PCa lines . The 5HTR1a and -1b agonists/antagonists did not significantly affect viability . MLT inhibited viability only in PC3 cells . Similarly , the 5HTR1a antagonist induced apoptotic changes in PC3 cells only at 10(-4)M , while the 5HTR1b antagonist induced necrosis at 10(-4)M in all cell lines . Cell cycle alterations were seen in PC3 and DU145 cells under the influence of the 5HTR1a antagonist . CONCLUSIONS Serotonin receptor antagonists and agonists as well as MLT influence viability and apoptosis of PCa cell lines at supraphysiologic concentrations . In contrast to other reports , our results do not support a regulatory role of serotonin or MLT receptor activation or inhibition in PCa growth .
    OUTPUT:

agent
resisting cell death
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: OBJECTIVES To investigate the effects of serotonin and melatonin ( MLT ) on the regulation of malignant growth and the activity of serotonin receptors ( 5HTR1a/-1b ) in prostate cancer ( PCa ) cell lines . MATERIALS AND METHODS In four PCa cell lines ( LNCaP , 22RV1 , PC3 , DU145 ) and two reference cell lines 5HTR1a and -1b , relative mRNA expression levels were assessed . Different serotonin and MLT receptor agonists and antagonists were used in stimulation and inhibition experiments . RESULTS mRNA expression of 5HTR1b was higher than that of 5HTR1a in all PCa cell lines . Serotonin showed a significant growth stimulatory effect in all PCa lines . The 5HTR1a and -1b agonists/antagonists did not significantly affect viability . MLT inhibited viability only in PC3 cells . Similarly , the 5HTR1a antagonist induced apoptotic changes in PC3 cells only at 10(-4)M , while the 5HTR1b antagonist induced necrosis at 10(-4)M in all cell lines . Cell cycle alterations were seen in PC3 and DU145 cells under the influence of the 5HTR1a antagonist . CONCLUSIONS Serotonin receptor antagonists and agonists as well as MLT influence viability and apoptosis of PCa cell lines at supraphysiologic concentrations . In contrast to other reports , our results do not support a regulatory role of serotonin or MLT receptor activation or inhibition in PCa growth .
    OUTPUT:
