271
Addition of soluble wild - type HFE / beta2m heterodimers to cultured cells also decreased the apparent affinity of the TfR for its ligand under steady - state conditions , both in 293 cells and in HeLa cells .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 None