https://padlet.com/patriciacastroctm/u3rwjc46c4tl2hxo Please add posts explaining what strategies pathogens use to overcome epithelial barriers. Include one example pathogen in each post, any the source you used. en-us 2023-06-21 14:46:51 UTC 2025-12-11 13:16:00 UTC hello@padlet.com https://padlet.net/icons/png/1f52c.png patriciacastroctm https://padlet.com/patriciacastroctm/u3rwjc46c4tl2hxo/wish/2629311858 There is a mucus layer in the colonic epithelium that helps prevent adhesion of pathogens to colonic epithelial cells. Some pathogens like Entamoeba histolytica (showed in the photo) can secrete cysteine proteases to degrade this mucus, which allows it to reach the surface of the colonic epithelial cells, adhere and invade them 

Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC145371/

]]> 2023-06-21 16:17:27 UTC https://padlet.com/patriciacastroctm/u3rwjc46c4tl2hxo/wish/2629311858 patriciacastroctm https://padlet.com/patriciacastroctm/u3rwjc46c4tl2hxo/wish/2632293863 The skin is our first line of defence. Many pathogens use a vector to overcome the skin barrier. For example, Plasmodium falciparum uses the anopheles mosquito. When the mosquito bites the skin to feed on human blood, the plasmodium sporozoites are injected inside the host. 

Source: https://pubmed.ncbi.nlm.nih.gov/25217461/

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