This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Which toll-like receptors are involved in the action of bacterial endotoxins - \nSelect and explain. \nA. I, B. II, C. IV, D. III', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Different TLRs can recognize different antigens as listed below.\nTLR-1:- Bacterial lipoprotein and peptidoglycans\nTLR-2:- Bacterial peptidoglycans\nTLR-3:- Double-stranded RNA\nTLR-4:- Lipopolysaccharides\nTLR-5:- Bacterial\nTLR-6:- Bacterial lipoprotein\nTLR-7:- Single-stranded RNA, bacterial and viral\nTLR-8:- Single-stranded RNA, bacterial and viral, phagocytized bacterial RNA.\nTLR-9:- CpG DNA\nTLR-10:- Unknown\nTLR-11:-Profilin from Toxoplasma gondii, also possibly uropathogenic bacteria\nTLR-12:-Profilin from Toxoplasma gondii\nTLR-13:- bacterial ribosomal RNA\nLipopolysaccharides (LPS), also known as lipoglycans and endotoxins, are large molecules consisting of a lipid and\na polysaccharide composed of O-antigen, outer core and inner core joined by a covalent bond; they are found in\nthe outer membrane of Gram-negative bacteria, and elicit strong immune responses in animals.\nThe term lipooligosaccharide ("LOS") is used to refer to a low-molecular-weight form of bacterial lipopolysaccharides', 'role': 'assistant'}]