PMID- 32886592 OWN - NLM STAT- MEDLINE DCOM- 20210816 LR - 20231214 IS - 2057-5858 (Electronic) IS - 2057-5858 (Linking) VI - 6 IP - 9 DP - 2020 Sep TI - Dual transcriptome analysis reveals differential gene expression modulation influenced by Leishmania arginase and host genetic background. LID - 10.1099/mgen.0.000427 [doi] LID - mgen000427 AB - The outcome of Leishmania infection is strongly influenced by the host's genetic background. BALB/c mice are susceptible to Leishmania infection, while C57BL/6 mice show discrete resistance. Central to the fate of the infection is the availability of l-arginine and the related metabolic processes in the host and parasite. Depending on l-arginine availability, nitric oxide synthase 2 (NOS2) of the host cell produces nitric oxide (NO) controlling the parasite growth. On the other hand, Leishmania can also use host l-arginine for the production of polyamines through its own arginase activity, thus favouring parasite replication. Considering RNA-seq data, we analysed the dual modulation of host and parasite gene expression of BALB/c or C57BL/6 mouse bone marrow-derived macrophages (BMDMs) after 4 h of infection with Leishmania amazonensis wild-type (La-WT) or L. amazonensis arginase knockout (La-arg(-)). We identified 12 641 host transcripts and 8282 parasite transcripts by alignment analysis with the respective Mus musculus and L. mexicana genomes. The comparison of BALB/c_La-arg(-)versus BALB/c_La-WT revealed 233 modulated transcripts, with most related to the immune response and some related to the amino acid transporters and l-arginine metabolism. In contrast, the comparison of C57BL/6_La-arg(-)vs. C57BL/6_La-WT revealed only 30 modulated transcripts, including some related to the immune response but none related to amino acid transport or l-arginine metabolism. The transcriptome profiles of the intracellular amastigote revealed 94 modulated transcripts in the comparison of La-arg(-)_BALB/c vs. La-WT_BALB/c and 45 modulated transcripts in the comparison of La-arg(-)_C57BL/6 vs. La-WT_C57BL/6. Taken together, our data present new insights into the impact of parasite arginase activity on the orchestration of the host gene expression modulation, including in the immune response and amino acid transport and metabolism, mainly in susceptible BALB/c-infected macrophages. Moreover, we show how parasite arginase activity affects parasite gene expression modulation, including amino acid uptake and amastin expression. FAU - Aoki, Juliana Ide AU - Aoki JI AD - Department of Physiology, Institute of Bioscience, University of Sao Paulo, Sao Paulo, Brazil. FAU - Muxel, Sandra Marcia AU - Muxel SM AD - Department of Physiology, Institute of Bioscience, University of Sao Paulo, Sao Paulo, Brazil. FAU - Laranjeira-Silva, Maria Fernanda AU - Laranjeira-Silva MF AD - Department of Physiology, Institute of Bioscience, University of Sao Paulo, Sao Paulo, Brazil. FAU - Zampieri, Ricardo Andrade AU - Zampieri RA AD - Department of Physiology, Institute of Bioscience, University of Sao Paulo, Sao Paulo, Brazil. FAU - Muller, Karl Erik AU - Muller KE AD - Department of Clinical Science, University of Bergen, Bergen, Norway. AD - Department of Internal Medicine, Drammen Hospital, Drammen, Norway. FAU - Nerland, Audun Helge AU - Nerland AH AD - Department of Clinical Science, University of Bergen, Bergen, Norway. FAU - Floeter-Winter, Lucile Maria AU - Floeter-Winter LM AD - Department of Physiology, Institute of Bioscience, University of Sao Paulo, Sao Paulo, Brazil. LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200904 PL - England TA - Microb Genom JT - Microbial genomics JID - 101671820 RN - 0 (Protozoan Proteins) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type II) RN - EC 1.14.13.39 (Nos2 protein, mouse) RN - EC 3.5.3.1 (Arginase) SB - IM MH - Animals MH - Arginase/*genetics MH - Female MH - Gene Expression Profiling/*methods MH - Gene Expression Regulation MH - Genetic Background MH - High-Throughput Nucleotide Sequencing MH - Leishmania/*genetics MH - Mice MH - Mice, Inbred BALB C MH - Mice, Inbred C57BL MH - Nitric Oxide Synthase Type II/*genetics MH - Protozoan Proteins/genetics MH - Sequence Analysis, RNA PMC - PMC7643972 OTO - NOTNLM OT - BALB/c OT - C57BL/6 OT - Leishmania amazonensis OT - RNA-seq OT - arginine transport OT - immune response OT - macrophage infection COIS- The authors declare that there are no conflicts of interest. EDAT- 2020/09/05 06:00 MHDA- 2021/08/17 06:00 PMCR- 2020/09/04 CRDT- 2020/09/04 17:09 PHST- 2020/09/05 06:00 [pubmed] PHST- 2021/08/17 06:00 [medline] PHST- 2020/09/04 17:09 [entrez] PHST- 2020/09/04 00:00 [pmc-release] AID - 000427 [pii] AID - 10.1099/mgen.0.000427 [doi] PST - ppublish SO - Microb Genom. 2020 Sep;6(9):mgen000427. doi: 10.1099/mgen.0.000427. Epub 2020 Sep 4.