13841
METHODS: Stable transfectants of the porcine vascular endothelial cell line PIEC with mutated CIITA constructs were tested for SLA-DR and SLA-DQ induction by recombinant porcine interferon-gamma .
 cell line: PIEC; DNA: CIITA constructs; protein: recombinant porcine interferon-gamma; cell line: porcine vascular endothelial cell line; protein: CIITA; protein: SLA-DQ; protein: SLA-DR
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: PIEC, CIITA constructs, recombinant porcine interferon-gamma, porcine vascular endothelial cell line, CIITA, SLA-DQ, SLA-DR 
Answer:
 cell line: PIEC; DNA: CIITA constructs; protein: recombinant porcine interferon-gamma; cell line: porcine vascular endothelial cell line; protein: CIITA; protein: SLA-DQ; protein: SLA-DR