PMID- 24141611 OWN - NLM STAT- MEDLINE DCOM- 20150814 LR - 20211021 IS - 1414-431X (Electronic) IS - 0100-879X (Print) IS - 0100-879X (Linking) VI - 46 IP - 10 DP - 2013 Oct TI - The left lung is preferentially targeted during experimental paracoccidioidomycosis in C57BL/6 mice. PG - 839-43 LID - S0100-879X2013001000839 [pii] LID - 10.1590/1414-431X20133140 [doi] AB - Paracoccidioidomycosis (PCM) is a chronic systemic mycosis caused by the inhalation of the thermally dimorphic fungus Paracoccidioides brasiliensis as well as the recently described P. lutzii. Because the primary infection occurs in the lungs, we investigated the differential involvement of the right and left lungs in experimental P. brasiliensis infection. Lungs were collected from C57BL/6 mice at 70 days after intravenous infection with 1x106 yeast cells of a virulent strain of P. brasiliensis (Pb18). The left lung, which in mice is smaller and has fewer lobes than the right lung, yielded increased fungal recovery associated with a predominant interleukin-4 response and diminished synthesis of interferon-gamma and nitric oxide compared with the right lung. Our data indicate differential involvement of the right and left lungs during experimental PCM. This knowledge emphasizes the need for an accurate, standardized protocol for tissue collection during studies of experimental P. brasiliensis infection, since experiments using the same lungs favor the collection of comparable data among different mice. FAU - Tristao, F S M AU - Tristao FS AD - Departamento de Bioquimica e Imunologia, Faculdade de Medicina de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao PretoSP, Brasil. FAU - Rocha, F A AU - Rocha FA FAU - Dias, F C AU - Dias FC FAU - Rossi, M A AU - Rossi MA FAU - Silva, J S AU - Silva JS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131002 PL - Brazil TA - Braz J Med Biol Res JT - Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas JID - 8112917 RN - 130068-27-8 (Interleukin-10) RN - 207137-56-2 (Interleukin-4) RN - 31C4KY9ESH (Nitric Oxide) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Animals MH - Disease Models, Animal MH - Interferon-gamma/analysis MH - Interleukin-10/analysis MH - Interleukin-4/analysis MH - Lung/*microbiology MH - Lung Diseases, Fungal/*microbiology MH - Male MH - Mice, Inbred C57BL MH - Nitric Oxide/analysis MH - *Paracoccidioides MH - Paracoccidioidomycosis/*microbiology MH - Time Factors PMC - PMC3854305 EDAT- 2013/10/22 06:00 MHDA- 2015/08/15 06:00 PMCR- 2013/10/02 CRDT- 2013/10/22 06:00 PHST- 2013/04/05 00:00 [received] PHST- 2013/07/29 00:00 [accepted] PHST- 2013/10/22 06:00 [entrez] PHST- 2013/10/22 06:00 [pubmed] PHST- 2015/08/15 06:00 [medline] PHST- 2013/10/02 00:00 [pmc-release] AID - S0100-879X2013001000839 [pii] AID - 10.1590/1414-431X20133140 [doi] PST - ppublish SO - Braz J Med Biol Res. 2013 Oct;46(10):839-43. doi: 10.1590/1414-431X20133140. Epub 2013 Oct 2.