Linked Life Data

7729957

Source:http://linkedlifedata.com/resource/pubmed/id/7729957

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1995-6-1
pubmed:abstractText
Cells transduced with cytokine genes are currently used to enhance the anti-tumor and immunomodulatory effects of these molecules in cancer therapy. The sustained release of cytokine thus obtained can perturb many homeostatic systems of the host. We have previously shown that the murine mammary adenocarcinoma TS/A transfected with the murine gamma-interferon (IFN-gamma) gene stimulates a strong immune response that impairs tumor growth. Mice bearing tiny tumors have serum IFN-gamma levels constantly exceeding 100 IU/ml. Therefore, we asked which systemic effects can be triggered in mice by such transfectants. BALB/c mice bearing tumors produced by clone 16.6000 cells (which release 6,000 IU/ml of IFN-gamma in culture) were compared to normal mice and to mice with tumors produced by parent cells transfected with the neomycin resistance gene (NEO cells, no IFN-gamma release). Histological studies revealed a marked hyperplasia of small bowel in mice bearing 16.6000 tumors; the villi and crypts of these mice were > 1.5 times longer than those of normal mice and of mice bearing NEO tumors. In vivo administration of bromodeoxyuridine evidenced a 2.5-3 times increase in the proliferative score of the intestinal crypts of mice bearing 16.6000 tumors compared to control mice. No intestinal alterations were observed in nude mice bearing 16.6000 tumors. T lymphocytes thus appear to play a causal role in this phenomenon.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0020-7136
pubmed:author
pubmed:issnType
Print
pubmed:day
4
pubmed:volume
61
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
425-30
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Systemic effects of cytokines released by gene-transduced tumor cells: marked hyperplasia induced in small bowel by gamma-interferon transfectants through host lymphocytes.
pubmed:affiliation
Istituto di Cancerologia, Centro Interdipartimentale di Ricerche sul Cancro G. Prodi, Università di Bologna, Italy.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't