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In vitro and in vivo role of heat shock protein 90 in Amphotericin B resistance of Aspergillus terreus G. Blum, B. Kainzner, K. Grif, H. Dietrich, B. Zeiger, T. Sonnweber, C. Lass-Flörl Clinical Microbiology and Infection Volume 19, Issue 1, Pages (January 2013) DOI: /j x Copyright © 2013 European Society of Clinical Infectious Diseases Terms and Conditions
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FIG. 1 Northern blot (a) and RT-PCR analysis (b) of HSP90 in Aspergillus spp. Incubation time was 15 min with sub-lethal (S) and lethal (L) concentrations of AmB. Tests were performed three times in duplicates and showed similar results. Gene expression levels of HSP90 (a) of Amphotericin B-resistant (ATR) and Amphotericin B-susceptible A. terreus (ATS) were compared with susceptible A. fumigatus (AFS). Ethidiumbromide (EtBr) staining of 26S and 18S rRNA was used as a loading control (black box). Regulation of target genes (b) in response to AmB and untreated control was determined using crossing points (CP) in comparison to the corresponding reference gene beta-tubulin. The2-ΔΔCt relative expression ratio of the target gene HSP90 determined with the2-ΔΔCt method and fold relative expression (FRE) are shown. Clinical Microbiology and Infection , 50-55DOI: ( /j x) Copyright © 2013 European Society of Clinical Infectious Diseases Terms and Conditions
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FIG. 2 Kaplan–Meier survival curve of mice infected with 2 × 106 CFU of ATR/mouse. Mice were treated from days 1 to 5 and sacrificed on day 6 post-challenge. All regimes were given once daily. Clinical Microbiology and Infection , 50-55DOI: ( /j x) Copyright © 2013 European Society of Clinical Infectious Diseases Terms and Conditions
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FIG. 3 Quantitative A. terreus real-time PCR of mouse lungs. BALB/c-mice received immunosuppression to assure fungal dissemination and were infected intravenously with 2 × 106 conidia of ATR. Clinical Microbiology and Infection , 50-55DOI: ( /j x) Copyright © 2013 European Society of Clinical Infectious Diseases Terms and Conditions
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