title: Expression profiles of cloned channel catfish (Ictalurus punctatus) lymphoid cell lines and mixed lymphocyte cultures.
abstract: Clonal channel catfish lymphoid cell lines and mixed lymphocyte cultures (MLCs) have proven extremely useful in examining immune responses at the cellular and molecular levels. To date clonal catfish cell lines and MLCs have been biologically and phenotypically characterized using a variety of techniques including reverse transcription polymerase chain reaction (RT-PCR), as well as Northern and Southern blotting. To expand the molecular characterization of these cultures, microarray analysis was employed. Clonal B (3B11), macrophage (42TA), and cytotoxic T cell (TS32.15 and TS32.17) lines and MLCs were examined using a cDNA array containing approximately 2500 probes derived from EST libraries prepared from the 42TA macrophage cell line, a MLC, and 5-14-day-old catfish fry. Analysis showed that each cell line displayed a unique RNA expression profile that included a variety of immune-related genes. Pearson correlation analysis indicated that one cytotoxic T cell line (TS32.15) clustered with the MLC, whereas a second cytotoxic T cell line (TS32.17) was more closely associated with a second cluster containing B cells and macrophages. This study illustrates the utility of microarray analyses in profiling RNA expression patterns in catfish lymphoid cell lines and will serve as a platform for examining catfish immune responses following virus infection or poly [I:C] treatment.
authors.affiliation: Department of Microbiology, University of Mississippi Medical Center, Jackson, MS 39216, United States.
authors.forename: S
authors.initials: S
authors.lastname: Majji
authors.forename: V
authors.initials: V
authors.lastname: Thodima
authors.forename: A
authors.initials: A
authors.lastname: Arnizaut
authors.forename: Y
authors.initials: Y
authors.lastname: Deng
authors.forename: W
authors.initials: W
authors.lastname: May
authors.forename: D
authors.initials: D
authors.lastname: Sittman
authors.forename: G C
authors.initials: GC
authors.lastname: Waldbieser
authors.forename: L
authors.initials: L
authors.lastname: Hanson
authors.forename: M A
authors.initials: MA
authors.lastname: Cuchens
authors.forename: E
authors.initials: E
authors.lastname: Bengten
authors.forename: V G
authors.initials: VG
authors.lastname: Chinchar
mesh_terms: D000818:Animals; D002397:Catfishes / Q000235:genetics / Q000276:immunology* / Q000378:metabolism*; D002460:Cell Line; D002469:Cell Separation; D020869:Gene Expression Profiling; D007959:Lymphocyte Culture Test, Mixed; D008214:Lymphocytes / Q000276:immunology* / Q000378:metabolism*; D020411:Oligonucleotide Array Sequence Analysis; D010641:Phenotype