Data from: Enhanced Salmonella mortality in naturally resistant, immunocompetent male mice is associated with an altered systemic immune response
Data files
Mar 05, 2026 version files 2.13 MB
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README.md
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SequenceInfo_Figure_1.txt
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SequenceInfo_Supplement_1A.txt
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SequenceInfo_Supplement_1B.txt
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SequenceInfo_Supplement_1C.txt
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SequenceInfo_Supplement_2A.txt
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SequenceInfo_Supplement_2B.txt
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SequenceInfo_Supplement_2C.txt
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SequenceInfo_Supplement_2D.txt
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SequenceInfo_Supplement_2E.txt
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Supporting_Data-_Figure_3.prism
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Supporting_Data-_Figure_4.prism
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Supporting_Data-_Supplemental_Figure_3.prism
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Supporting_Data-_Supplemental_Figure_4.prism
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Supporting_Data-Figure_1_and_2_and_Supplement_1_and_2.prism
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Supporting_Data-Figure_5.prism
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Abstract
While typhoid fever affects both sexes at an equal rate, males are at higher risk for intestinal perforation, which increases mortality. The mechanisms behind the increased morbidity of typhoid fever in human males remain an important but understudied question. Using a 129X1/SvJ [NRAMP+/+ (SLC11A1)] murine model of typhoid chronic infection, we determined that males in this model exhibit increased bacterial burden and mortality in comparison to females (median survival 7 vs. 11 days-post infection, respectively). This decreased survival in males was influenced by the diet preceding infection, as male mice fed a lithogenic diet, to induce gallstones, important to chronic infection, or a normal diet had a lower median survival time, although no difference in overall probability of survival. We also explored how the systemic immune response may contribute to increased mortality by comparing serum cytokine levels between males and females. Males had higher overall levels of pro-inflammatory cytokines and IL-10 and lower levels of IL-27, which are known to inhibit the protective responses to Salmonella infection. Together, we present the first report that the 129X1/SvJ murine model of Salmonella infection responds to infection in a sex-dependent manner, characterized by maladjusted systemic cytokine production and increased bacterial burden in males.
Dataset DOI: 10.5061/dryad.95x69p8z9
Description of the data and file structure
This dataset includes additional data collected and included in figures in Bennett et. al. 2025. Data was compiled using GraphPad Prism software and Living Image Software and is available in the following files.
This txt files are metadata from a biomedical imaging experiment performed using the Living Image with an IVIS Spectrum CT system. It records the technical settings and conditions used to capture luminescent images of a mouse, such as exposure time, camera temperature, filters, and calibration parameters. The actual images (e.g., photograph.TIF and luminescent. TIF) contain the visual results, while this file describes how those images were acquired and processed. It is commonly used in bioluminescence or fluorescence imaging studies in biomedical research.
- Figure 1. Three days post-infection, mice were anesthetized and imaged with the Xenogen Spectrum CT. The average radiance per region of interest (ROI) drawn was quantified and compared between groups via a one-way ANOVA with Holm-Šídák's multiple comparisons test. ns=not significant; ***p<0.001; ****p<0.0001
- SequenceInfo_Figure_1.txt
- Supporting_Data-Figure_1_and_2_and_Supplement_1_and_2.prism
- Figure 2. Every 3-13 days post-infection,n micm from Figure 1 were anesthetized and imaged with the Xenogen Spectrum CT. The data are represented as the average radiance and standard deviation per group at each time point. Probability of survival, median survival time, and difference in survival were calculated using GraphPad Prism 10. Survival curves were compared by a Log-rank (Mantel-Cox) test. ns=not significant; **p<0.01; ***p<0.001; ****p<0.0001
- Supporting_Data-Figure_1_and_2_and_Supplement_1_and_2.prism
- Supplemental Figure 1. Seven, eleven, and fourteen days post-infection, mice from Figure 1 were anesthetized and imaged with the Xenogen Spectrum CT. The average radiance per ROI was quantified and compared between groups via a one-way ANOVA with Holm-Šídák's multiple comparisons test. ns=not significant; *p<0.05; ****p<0.0001
- Supporting_Data-Figure_1_and_2_and_Supplement_1_and_2.prism
- SequenceInfo_Supplement_1A.txt
- SequenceInfo_Supplement_1B.txt
- SequenceInfo_Supplement_1C.txt
- Supplemental Figure 2. Twenty, twenty-seven, thirty-four, forty-seven, and sixty-five days post-infection, female mice from Figure 1 were anesthetized and imaged with the Xenogen Spectrum CT. The average radiance per ROI was quantified and compared between groups via a two-tailed, unpaired t-test. ns=not significant
- Supporting_Data-Figure_1_and_2_and_Supplement_1_and_2.prism
- SequenceInfo_Supplement_2A.txt
- SequenceInfo_Supplement_2B.txt
- SequenceInfo_Supplement_2C.txt
- SequenceInfo_Supplement_2D.txt
- SequenceInfo_Supplement_2E.txt
- Figure 3. Peripheral blood was collected from individual mice at 4- and 11-days post-infection (dpi) via the facial vein, and at 21 days post-infection (dpi) via a post-mortem cardiac puncture. Absolute white blood cell count and per cell type per µL of blood (cells/µL) was calculated by counting the number of neutrophils, lymphocytes, monocytes, and eosinophils in ten microscopic fields per slide at 4 dpi, 11 dpi, and 21 dpi. Data represent the average and standard deviation of cells/µL per group. Average cells/µL are compared between diet-sex groups, using a two-way-ANOVA with Tukey’s multiple comparisons test. *p<0.05; **p<0.01; ***p<0.001; ****p<0.0001
- Supporting_Data-_Figure_3.prism
- Figure 4. Using the LEGENDplex™ Mouse Inflammation panel, serum concentrations of IL-23, IL-1α, IFN-γ, TNF-α, MCP-1, IL-12p70, IL-1β, IL-10, IL-6, IL-27, IL-17A, IFN-β, GM-CSF of the mice in Figure 3. Cytokine concentrations are compared between diet-sex cohorts within the same day post-infection, as well as individual diet-sex cohorts between days post-infection, using Mixed-effects analysis with Tukey's multiple comparisons test. *p<0.05; **p<0.01
- Supporting_Data-_Figure_4.prism
- Figure 5. Using the LEGENDplex™ Mouse Inflammation panel, serum concentrations of IL-23, IL-1α, IFN-γ, TNF-α, MCP-1, IL-12p70, IL-1β, IL-10, IL-6, IL-27, IL-17A, IFN-β, and GM-CSF of infected mice euthanized at 11 days post-infection. Cytokine concentrations are compared between diet-sex cohorts within the same day post-infection, as well as individual diet-sex cohorts between days post-infection, using Mixed-effects analysis with Tukey's multiple comparisons test. *p<0.05; **p<0.01
- Supporting_Data-Figure_5.prism
- Supplemental Figure 3. On day 9 post-infection,n mice were euthanized, ed and the gallbladder, liver, spleen, cecum, and whole blood of infected mice were collected, and sections of each tissue were homogenized to enumerate CFUs per mg of tissue. Log10CFU/mg were compared between groups by a two-way ANOVA with uncorrected Fisher’s LSD test. Probability of survival, median survival time, and difference in survival were calculated using GraphPad Prism 10. Survival curves were compared by a Log-rank (Mantel-Cox) test,t and all comparisons and results are indicated in the figure legend. ns=not significant; *p<0.05; **p<0.01
- Supporting_Data-_Supplemental_Figure_3.prism
- Supplemental Figure 4. Eleven days post-infection, mice from Figure 5 were euthanized, and the gallbladder, liver, spleen, cecum, and whole blood of S. Typhimurium (STm) infected mice were collected, and sections of each tissue were homogenized to enumerate CFUs per mg of tissue. Log10CFU/mg were compared between groups by a one-way ANOVA with Tukey’s multiple comparisons test. Serum IFNγ, TNF, and IL-10 cytokine levels were measured individually by ELISA (n= 3-5). Cytokine levels were compared between groups by a two-way ANOVA with uncorrected Fisher’s LSD test. ns=not significant; *p<0.05; **p<0.01
- Supporting_Data-_Supplemental_Figure_4.prism
Additional explanation of data sources and analysis techniques can be found within each file.
