Table 2 Primer used for the quantitative real-time PCR

Cytokines	Primer sequence
IL-2	Forward	5’-GCTAATGACTACAGCTTATGGAGCA-3’
	Reverse	5’-TGGGTCTCAGTTGGTGTGTAGAG-3’
IL-6	Forward	5’-AAATCCCTCCTCGCCAATCT-3’
	Reverse	5’-CCCTCACGGTCTTCTCCATAAA-3’