Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2009-5-15
pubmed:abstractText
Adult T-cell leukemia (ATL) is a malignant tumor of human CD4(+) T cells infected with a human retrovirus, T lymphotropic virus type-1 (HTLV-1). The aim of the present study was to investigate the apoptotic effects of phenoxazines, 2-amino-4,4alpha-dihydro-4alpha,7-dimethyl-3H-phenoxazine-3-one (Phx-1), 3-amino-1,4alpha-dihydro-4alpha,8-dimethyl-2H-phenoxazine-2-one (Phx-2), and 2-aminophenoxazine-3-one (Phx-3) on a T cell leukemia cell line from ATL patients, MT-1 cells; HTLV-1 transformed T-cell lines, HUT-102 cells and MT-2 cells; and an HTLV-1-negative rat sarcoma cell line, XC cells. Among these phenoxazines, Phx-3 at concentrations of less than 10 microg/ml extensively inhibited growth and cell viability; arrested cell cycles at sub G(0)/G(1) phase; and augmented apoptosis of MT-1, HUT-102, and MT-2 cells. However, these phenoxazines did not affect the cell viability of an HTLV-1-negative rat sarcoma cell line, XC cells, and phytohemaggutinin-activated human peripheral blood mononuclear cells, although they markedly inhibited the growth of these cells. The transmission of HTLV-1 from HTLV-1-positive cells (MT-2 cells) to HTLV-1-negative cells (XC cells) was considered to be prevented by Phx-1, Phx-2, or Phx-3 because the syncytium formation between these cells was inhibited markedly in the presence of these phenoxazines. The present results suggest that Phx-1, Phx-2, and, in particular, Phx-3 may be useful as therapeutic agents against ATL, which is extremely refractory to current therapies.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1347-8613
pubmed:author
pubmed:issnType
Print
pubmed:volume
110
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
87-97
pubmed:meshHeading
pubmed-meshheading:19403995-Animals, pubmed-meshheading:19403995-Antineoplastic Agents, pubmed-meshheading:19403995-Apoptosis, pubmed-meshheading:19403995-Caspase 3, pubmed-meshheading:19403995-Cell Cycle, pubmed-meshheading:19403995-Cell Line, Tumor, pubmed-meshheading:19403995-Cell Proliferation, pubmed-meshheading:19403995-Cell Survival, pubmed-meshheading:19403995-Giant Cells, pubmed-meshheading:19403995-HTLV-I Infections, pubmed-meshheading:19403995-Human T-lymphotropic virus 1, pubmed-meshheading:19403995-Humans, pubmed-meshheading:19403995-Indicators and Reagents, pubmed-meshheading:19403995-Necrosis, pubmed-meshheading:19403995-Oxazines, pubmed-meshheading:19403995-RNA, Neoplasm, pubmed-meshheading:19403995-Rats, pubmed-meshheading:19403995-Reverse Transcriptase Polymerase Chain Reaction
pubmed:year
2009
pubmed:articleTitle
Anticancer effects of phenoxazine derivatives revealed by inhibition of cell growth and viability, disregulation of cell cycle, and apoptosis induction in HTLV-1-positive leukemia cells.
pubmed:affiliation
Department of Life and Environmental Sciences, Chiba Institute of Technology, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't