Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1989-9-8
pubmed:abstractText
A human acute monocytic leukemia cell line, THP-1, releases a factor which activates human cytotoxic (killer) T lymphocytes (CTL) against autologous tumor in vitro. The factor, named cytotoxic (killer) T cell activating factor (KAF), is an acidic protein of 70,000 to 100,000 dalton molecular size. Peripheral blood leukocytes from two patients, bearing epithelioid sarcoma or malignant schwannoma, were cultured for 7 days with individual autologous tumor to induce CTL directed to the corresponding tumor. Monocyte-depleted peripheral leukocytes generated lesser CTL activity than the monocyte-containing leukocyte population. However, the KAF was able to replace the monocyte function. The KAF acted at the CTL generation phase as well as the effector phase. The KAF-activated killer cells possessed CD4-8+ surface phenotype. The CTL killed autologous tumor or other unrelated tumor cell lines only when they shared some of the HLA class I antigens. It was also demonstrated that the KAF does not activate killer cells without proper antigenic stimuli, because the KAF-augmented CTL possess specificity against autologous tumor or other HLA-A or -B matched tumor cell lines. The therapeutic applicability of human KAF for anti-tumor CTL therapy against autologous tumor is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0910-5050
pubmed:author
pubmed:issnType
Print
pubmed:volume
80
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
537-45
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:2503475-Adult, pubmed-meshheading:2503475-Animals, pubmed-meshheading:2503475-Antigens, CD8, pubmed-meshheading:2503475-Antigens, Differentiation, T-Lymphocyte, pubmed-meshheading:2503475-Antigens, Neoplasm, pubmed-meshheading:2503475-Chromatography, Gel, pubmed-meshheading:2503475-Female, pubmed-meshheading:2503475-HLA Antigens, pubmed-meshheading:2503475-Humans, pubmed-meshheading:2503475-Killer Cells, Natural, pubmed-meshheading:2503475-Leukemia, Monocytic, Acute, pubmed-meshheading:2503475-Lymphocyte Activation, pubmed-meshheading:2503475-Male, pubmed-meshheading:2503475-Mice, pubmed-meshheading:2503475-Mice, Inbred A, pubmed-meshheading:2503475-Molecular Weight, pubmed-meshheading:2503475-Neoplasm Proteins, pubmed-meshheading:2503475-Neoplasms, pubmed-meshheading:2503475-Neurilemmoma, pubmed-meshheading:2503475-Rats, pubmed-meshheading:2503475-Rats, Inbred Strains, pubmed-meshheading:2503475-Sarcoma, pubmed-meshheading:2503475-T-Lymphocytes, Cytotoxic, pubmed-meshheading:2503475-Tumor Cells, Cultured
pubmed:year
1989
pubmed:articleTitle
Augmentation of human cytotoxic T lymphocytes against autologous tumor by a factor released from human monocytic leukemia cell line.
pubmed:affiliation
Department of Immunology, Kochi Medical School.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't