Saponins from soy bean and mung bean inhibit the antigen specific activation of helper T cells by blocking cell cycle progression. - Lee, Suk; Bae, Joonbeom; Kim, Sunhee; Jeong, Seonah; Choi, Chang-Yong; Choi, Sang-Pil; Kim, Hyun-Sook; Jung, Woon-Won; Imm, Jee-Young; Kim, Sae; Chun, Taehoon (Biotechnology Letters, 2013)