High CC chemokine receptor 7 expression improves postoperative prognosis of lung adenocarcinoma patients.

Background: Chemokines and chemokine receptors not only have significant roles in cancer metastasis and tumorigenesis but also act as antitumour agents. The interaction between the Crk-like adaptor protein (CrkL), which is encoded by the CRKL gene, and non-receptor tyrosine kinase c-ABL is reported to transform many cells into malignant cells. We examined the effects of CC chemokine receptor 7 (CCR7), CCR7 ligands and CrkL and c-ABL in lung adenocarcinoma.

Selective accumulation of CCR4+ T lymphocytes into renal tissue of patients with lupus nephritis.

Objective: Some chemokine receptors, such as CCR5 and CCR4, are differentially expressed on Th1 and Th2 cells. To determine whether differential expression of the chemokine receptors occurs in patients with lupus nephritis, we examined the expression of CCR4 and CCR5 on peripheral blood lymphocytes and mononuclear cells infiltrated into the renal tissue of patients with lupus nephritis.

Methods: The expression of CCR4 and CCR5 on CD4+,CD45RO+ cells was analyzed by flow cytometry and compared between patients with systemic lupus erythematosus (SLE) and healthy controls.

CCR1 chemokine receptor expression isolates erythroid from granulocyte-macrophage progenitors.

Simple methods that separate progenitor cells of different hemopoietic lineages would facilitate studies on lineage commitment and differentiation. We used an antibody specific for the chemokine receptor CCR1 to examine mononuclear cells isolated from cord blood samples. When CD34(+) cells were separated into CD34(+)CCR1(+) and CD34(+)CCR1(-) cells and plated in colony-forming assays, the granulocyte/macrophage progenitors were found almost exclusively in the CD34(+)CCR1(+) cells.