Journal: Antimicrobial Agents and Chemotherapy
Article Title: A short antimicrobial peptides family demonstrates efficacy to infection via a multimodal mechanism of action
doi: 10.1128/aac.01343-25
Figure Lengend Snippet: In vivo sepsis efficacy evaluation of SAMPs. ( A ) Bacterial quantification in the MDR- E. coli -infected liver, spleen, lung, kidney, and PLF after treatment with PBS, FA, Amcill-s, or KR (5 mg kg -1 ). ( B ) Body weight changes of mice during treatment. Relative organ index (organ mass/weight of mice before execution) of ( C ) liver, ( D ) spleen, ( E ) lung, and ( F ) kidney after treatment. The ( G ) TNF-α and ( H ) IL-6 levels in mouse serum after treatment. Data are presented as mean ± SD ( n = 6); * P < 0.05, ** P < 0.01, *** P < 0.001, **** P < 0.005. ( I ) Immunofluorescence (TNF-α and IL-6) images of liver, spleen, lung, and kidney after treatment, Scale bar: 100 μm. ( J ) Gram-stained images and ( K ) H&E-stained images of liver, spleen, lung, and kidney after treatment, Scale bar: 200 μm.
Article Snippet: 10× PBS solution was procured from BioSharp (China); yeast extract and tryptone was obtained from Thermo Fisher (USA); Agar powder, sodium dodecyl sulfate (SDS), ethylenediaminetetraacetic acid disodium salt (EDTA-2Na), Triton X-100, ampicillin sodium, kanamycin sulfate, crystal violet, PI solution, 10× DNA loading buffer, 2-(4-Amidinophenyl)-6-indolecarbamidine dihydrochloride (DAPI), calcein-AM/PI Dead/Live Cell Dual Staining Kit and Annexin V-FITC Apoptosis Detection Kit were obtained from Solarbio (China); 3,3'′-dipropylthiadicarbocyanine Iodide (DiSC 3 -5) was purchased from AAT BioQuest (USA); HEPES buffer was purchased from Yuanye (China); methanol, 25% aqueous glutaraldehyde solution, absolute ethanol, sodium chloride (NaCl), and potassium chloride (KCl) were obtained from Sinopharm Chemical Reagent Co., Ltd. (China); TFE was obtained from Sigma Aldrich (USA); 2′,7′-dichlorodihydrofluorescein diacetate (DCFH-DA) and dimethyl sulfoxide (DMSO) were obtained from J&K Chemical Technology (China); Micro-MDA Assay Reagent Kit was purchased from KeyGEN Biotech (China); Cell Counting Kit-8 (CCK8) was purchased from GlpBio (USA); Bacterial Genomic DNA Extraction Kit was purchased from TIANGEN (China); Bacteria RNA Extraction Kit, HiScript III RT SuperMix for qPCR(+gDNA wiper) and Taq Pro Universal SYBR qPCR Master Mix were obtained from Vazyme (China); 2 kb DNA ladder (100-2000 bp) was obtained from Baiaolaibo (China); Mouse TNF-α ELISA kit and Mouse IL-6 ELISA kit were obtained from Shanghai Enzyme-linked Biotechnology Co., Ltd. (China); Anti-IL-6 antibody (ab233706) and goat Anti-rabbit IgG H&L (ab150078, Alexa Fluor 555) were obtained from Abcam (UK); Anti-TNF-α (D2D4) XP rabbit monoclonal antibody was obtained from Cell Signaling Technology (USA); All the mice were purchased from Jinan Pengyue Experimental Animal Breeding Co., Ltd. (China) and kept in a specific pathogen-free environment.
Techniques: In Vivo, Infection, Immunofluorescence, Staining