12899
Using human T lymphocytes and T cell lines , we show that progesterone , at concentrations found in the placenta, rapidly and reversibly blocks voltage-gated and calcium-activated K+ channels ( KV and KCa , respectively), resulting in depolarization of the membrane potential .
 protein: KCa; cell type: T lymphocytes; cell type: human T lymphocytes; protein: KV; cell line: T cell lines
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: KCa, T lymphocytes, human T lymphocytes, KV, T cell lines 
Answer:
 protein: KCa; cell type: T lymphocytes; cell type: human T lymphocytes; protein: KV; cell line: T cell lines