7320
The development and function of T lymphocytes are regulated tightly by signal transduction pathways that include specific cell-surface receptors , intracellular signaling molecules , and nuclear transcription factors .
 protein: nuclear transcription factors; protein: intracellular signaling molecules; cell type: T lymphocytes; protein: cell-surface receptors
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: nuclear transcription factors, intracellular signaling molecules, T lymphocytes, cell-surface receptors 
Answer:
 protein: nuclear transcription factors; protein: intracellular signaling molecules; cell type: T lymphocytes; protein: cell-surface receptors