preferred_name: WNTs are secreted in exosomes (Caenorhabditis elegans)
preferred_name_lc: wnts are secreted in exosomes (caenorhabditis elegans)
label: WNTs are secreted in exosomes (Caenorhabditis elegans)
label_lc: wnts are secreted in exosomes (caenorhabditis elegans)