TY - JOUR TI - Quantification of Neisseria meningitidis Adherence to Human Epithelial Cells by Colony Counting AU - Sigurlásdóttir, Sara AU - Saroj, Sunil D AU - Eriksson, Olaspers Sara AU - Eriksson, Jens AU - Jonsson, Ann-Beth VL - 8 IS - 3 PY - 2018 DA - 2018/02/05 SP - e2709 C1 - Bio-protocol 2018;8:e2709 DO - 10.21769/BioProtoc.2709 UR - https://doi.org/10.21769/BioProtoc.2709 AB - To cause an infection, the human specific pathogen Neisseria meningitides must first colonize the nasopharynx. Upon tight interaction with the mucosal epithelium, N. meningitidis may cross the epithelial cellular barrier, reach the bloodstream and cause sepsis and/or meningitis. Since N. meningitidis niche is restricted to humans the availability of relevant animal models to study host-pathogen interactions are limiting. Therefore, most findings that involve N. meningitidis colonization derive from studies using cultured human cell lines. Human epithelial cells have been successfully used to examine and identify molecular effectors involved in initial adherence of the pathogen. Here, we describe a standard protocol to quantify the adherence of N. meningitidis to epithelial pharyngeal FaDu cells. Colony counts of cell lysates collected after infection are used to quantify adherence to the epithelial cells. KW - Neisseria KW - Colonization KW - Adherence KW - Adhesion assay KW - Type IV pili JF - Bio-protocol SN - 2331-8325 PB - Bio-protocol LLC. BIO101 - False