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: Here , we provide the necessary proof of concept , that it is possible to metabolically create a non-permissive or " hostile " stromal microenvironment , which actively prevents tumor engraftment in vivo . We developed a novel genetically engineered fibroblast cell line that completely prevents tumor formation in mice , with a 100% protection rate . No host side effects were apparent.This could represent a viable cellular strategy for preventing and treating a variety of human cancers . More specifically , we examined the autocrine and paracrine effects of the cellular delivery of TNF-alpha on breast cancer tumor growth and cancer metabolism . For this purpose , we recombinantly overexpressed TNF-alpha in human breast cancer cells ( MDA-MB-231 ) or human immortalized fibroblasts ( hTERT-BJ1 ) . Our results directly show that TNF-alpha functions as a potent tumor suppressor . Remarkably , TNF-alpha-expressing breast cancer cells were viable , without any significant increases in their basal apoptotic rate . However , after 4 weeks post-implantation , TNF-alpha-expressing breast cancer cells failed to form any tumors in xenografted mice ( 0 tumors/10 injections ) , ultimately conferring 100% protection against tumorigenesis . Similarly , TNF-alpha-overexpressing fibroblasts were also viable , without any increases in apoptosis . Significantly , complete tumor suppression was obtained by co-injecting TNF-alpha expressing stromal fibroblasts with human breast cancer cells , indicating that paracrine cell-mediated delivery of TNF-alpha can also prevent tumor engraftment and growth ( 0 tumors/10 injections ) . Mechanistically , TNF-alpha induced autophagy and mitochondrial dysfunction in both epithelial cancer cells and stromal fibroblasts , preventing energy transfer from the tumor microenvironment , likely " starving " the cancer cells to death . In addition , via qRT-PCR analysis of MDA-MB-231 cells , we observed that TNF-alpha mediated the up-regulation of gene transcripts associated with inflammation and senescence [ IL-1-beta , IL-6 , IL-8 , MCP-1 , COX-2 , p21(WAF1/CIP1) ] and downregulated known tumor-promoting genes ( collagen VI and MMP2 ) . Recombinant overexpression of TNF-alpha receptor(s) in MDA-MB-231 cells also significantly reduced tumor growth , but was not as effective as the TNF-alpha ligand itself in preventing tumor growth . Thus , we propose that stromal cell-mediated delivery of TNF-alpha to human tumors [ using transfected fibroblasts or mesenchymal stem cells ( hMSCs) ] may be a novel and effective strategy for the prevention and treatment of human cancers .
    OUTPUT:

agent
resisting cell death;enabling replicative immortality;tumor promoting inflammation
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: Here , we provide the necessary proof of concept , that it is possible to metabolically create a non-permissive or " hostile " stromal microenvironment , which actively prevents tumor engraftment in vivo . We developed a novel genetically engineered fibroblast cell line that completely prevents tumor formation in mice , with a 100% protection rate . No host side effects were apparent.This could represent a viable cellular strategy for preventing and treating a variety of human cancers . More specifically , we examined the autocrine and paracrine effects of the cellular delivery of TNF-alpha on breast cancer tumor growth and cancer metabolism . For this purpose , we recombinantly overexpressed TNF-alpha in human breast cancer cells ( MDA-MB-231 ) or human immortalized fibroblasts ( hTERT-BJ1 ) . Our results directly show that TNF-alpha functions as a potent tumor suppressor . Remarkably , TNF-alpha-expressing breast cancer cells were viable , without any significant increases in their basal apoptotic rate . However , after 4 weeks post-implantation , TNF-alpha-expressing breast cancer cells failed to form any tumors in xenografted mice ( 0 tumors/10 injections ) , ultimately conferring 100% protection against tumorigenesis . Similarly , TNF-alpha-overexpressing fibroblasts were also viable , without any increases in apoptosis . Significantly , complete tumor suppression was obtained by co-injecting TNF-alpha expressing stromal fibroblasts with human breast cancer cells , indicating that paracrine cell-mediated delivery of TNF-alpha can also prevent tumor engraftment and growth ( 0 tumors/10 injections ) . Mechanistically , TNF-alpha induced autophagy and mitochondrial dysfunction in both epithelial cancer cells and stromal fibroblasts , preventing energy transfer from the tumor microenvironment , likely " starving " the cancer cells to death . In addition , via qRT-PCR analysis of MDA-MB-231 cells , we observed that TNF-alpha mediated the up-regulation of gene transcripts associated with inflammation and senescence [ IL-1-beta , IL-6 , IL-8 , MCP-1 , COX-2 , p21(WAF1/CIP1) ] and downregulated known tumor-promoting genes ( collagen VI and MMP2 ) . Recombinant overexpression of TNF-alpha receptor(s) in MDA-MB-231 cells also significantly reduced tumor growth , but was not as effective as the TNF-alpha ligand itself in preventing tumor growth . Thus , we propose that stromal cell-mediated delivery of TNF-alpha to human tumors [ using transfected fibroblasts or mesenchymal stem cells ( hMSCs) ] may be a novel and effective strategy for the prevention and treatment of human cancers .
    OUTPUT:
