4364
During lymphomagenesis , induction of persistent telomerase expression and activity may occur before or after telomere shortening , as a consequence of the different mechanisms through which transforming factors / agents may activate telomerase .
 telomere
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 telomere