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: Increasing evidence shows that estrogens are involved in lung cancer proliferation and progression , and most human lung tumors express estrogen receptor Î² ( ERÎ² ) as well as aromatase . To determine if the aromatase inhibitor anastrozole prevents development of lung tumors induced by a tobacco carcinogen , alone or in combination with the ER antagonist fulvestrant , ovariectomized female mice received treatments with the tobacco carcinogen 4-(methylnitrosoamino)-1-(3-pyridyl)-1-butanone ( NNK ) along with daily supplements of androstenedione , the substrate for aromatase . Placebo , anastrozole and/or fulvestrant were administered in both an initiation and a promotion protocol of lung tumorigenesis . The combination of fulvestrant and anastrozole given during NNK exposure resulted in significantly fewer NNK-induced lung tumors ( mean = 0.5 ) compared with placebo ( mean = 4.6 , P &lt ; 0.001 ) , fulvestrant alone ( mean = 3.4 , P &lt ; 0.001 ) or anastrozole alone ( mean = 2.8 , P = 0.002 ) . A significantly lower Ki67 cell proliferation index was also observed compared with single agent and control treatment groups . Beginning antiestrogen treatment after NNK exposure , when preneoplastic lesions had already formed , also yielded maximum antitumor effects with the combination . Aromatase expression was found mainly in macrophages infiltrating preneoplastic and tumorous areas of the lungs , whereas ERÎ² was found in both macrophages and tumor cells . Antiestrogens , especially in combination , effectively inhibited tobacco carcinogen-induced murine lung tumorigenesis and may have application for lung cancer prevention . An important source of estrogen synthesis may be inflammatory cells that infiltrate the lungs in response to carcinogens , beginning early in the carcinogenesis process . ERÎ² expressed by inflammatory and neoplastic epithelial cells in the lung may signal in response to local estrogen production .
    OUTPUT:

agent
sustaining proliferative signaling
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: Increasing evidence shows that estrogens are involved in lung cancer proliferation and progression , and most human lung tumors express estrogen receptor Î² ( ERÎ² ) as well as aromatase . To determine if the aromatase inhibitor anastrozole prevents development of lung tumors induced by a tobacco carcinogen , alone or in combination with the ER antagonist fulvestrant , ovariectomized female mice received treatments with the tobacco carcinogen 4-(methylnitrosoamino)-1-(3-pyridyl)-1-butanone ( NNK ) along with daily supplements of androstenedione , the substrate for aromatase . Placebo , anastrozole and/or fulvestrant were administered in both an initiation and a promotion protocol of lung tumorigenesis . The combination of fulvestrant and anastrozole given during NNK exposure resulted in significantly fewer NNK-induced lung tumors ( mean = 0.5 ) compared with placebo ( mean = 4.6 , P &lt ; 0.001 ) , fulvestrant alone ( mean = 3.4 , P &lt ; 0.001 ) or anastrozole alone ( mean = 2.8 , P = 0.002 ) . A significantly lower Ki67 cell proliferation index was also observed compared with single agent and control treatment groups . Beginning antiestrogen treatment after NNK exposure , when preneoplastic lesions had already formed , also yielded maximum antitumor effects with the combination . Aromatase expression was found mainly in macrophages infiltrating preneoplastic and tumorous areas of the lungs , whereas ERÎ² was found in both macrophages and tumor cells . Antiestrogens , especially in combination , effectively inhibited tobacco carcinogen-induced murine lung tumorigenesis and may have application for lung cancer prevention . An important source of estrogen synthesis may be inflammatory cells that infiltrate the lungs in response to carcinogens , beginning early in the carcinogenesis process . ERÎ² expressed by inflammatory and neoplastic epithelial cells in the lung may signal in response to local estrogen production .
    OUTPUT:
