scholarly journals Larvae and adults exhibit contrasting patterns of immune gene expression and infection resistance in wild flour beetle populations

2021 ◽  
Author(s):  
Ann T. Tate ◽  
Abby Perry ◽  
Derrick Jent
Keyword(s):  
Gene Expression ◽  
Immune Gene ◽  
Flour Beetle ◽  
Immune Gene Expression ◽  
Infection Resistance

scholarly journals Larvae and adults exhibit contrasting patterns of immune gene expression and infection resistance in wild flour beetle populations

2021 ◽  
Author(s):  
Ann T. Tate ◽  
Abby Perry ◽  
Derrick G. Jent
Keyword(s):  
Gene Expression ◽  
Life History ◽  
Life Stage ◽  
Lessons Learned ◽  
Immune Gene ◽  
Flour Beetle ◽  
Specific Investment ◽  
Immune Gene Expression ◽  
Trade Offs ◽  
Infection Resistance

AbstractIn nature, hosts face shifting patterns of parasite exposure and life history trade-offs as they develop from birth to old age. As a result, the net fitness benefit of immunological investment can change dramatically from one life stage to the next. Previous work has revealed a puzzling diversity of relative immune investment patterns among juvenile and adult stages, and it is not clear whether lessons learned from one particular population or species can be generalized to wild populations, after accounting for local adaptation and other variance-generating processes. In this study, we quantify larval and adult immune gene expression and resistance to bacterial infection in two flour beetle species (Tribolium castaneum and T. confusum) from two lab-adapted and five wild-derived populations. Our results provide a clear signal of higher infection-induced immunological investment and resistance in adults relative to larvae, despite variation among species in immune gene regulation. Better characterization of stage-specific investment in infection resistance in natural populations can inform our understanding of life history evolution and improve predictions of disease dynamics in the wild.

Impact of cinnamaldehyde on innate immunity and immune gene expression in Channa striatus against Aphanomyces invadans

2021 ◽  
Author(s):  
Ramasamy Harikrishnan ◽  
Gunapathy Devi ◽  
Chellam Balasundaram ◽  
Hien Van Doan ◽  
Sanchai Jaturasitha ◽  
...  
Keyword(s):  
Gene Expression ◽  
Innate Immunity ◽  
Immune Gene ◽  
Channa Striatus ◽  
Immune Gene Expression

scholarly journals Cell-autonomous immune gene expression is repressed in pulmonary neuroendocrine cells and small cell lung cancer

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Ling Cai ◽  
Hongyu Liu ◽  
Fang Huang ◽  
Junya Fujimoto ◽  
Luc Girard ◽  
...  
Keyword(s):  
Gene Expression ◽  
Lung Cancer ◽  
Small Cell Lung Cancer ◽  
Cell Lung Cancer ◽  
Small Cell ◽  
Neuroendocrine Cells ◽  
Immune Gene ◽  
Small Cell Lung ◽  
Immune Gene Expression ◽  
Pulmonary Neuroendocrine Cells

AbstractSmall cell lung cancer (SCLC) is classified as a high-grade neuroendocrine (NE) tumor, but a subset of SCLC has been termed “variant” due to the loss of NE characteristics. In this study, we computed NE scores for patient-derived SCLC cell lines and xenografts, as well as human tumors. We aligned NE properties with transcription factor-defined molecular subtypes. Then we investigated the different immune phenotypes associated with high and low NE scores. We found repression of immune response genes as a shared feature between classic SCLC and pulmonary neuroendocrine cells of the healthy lung. With loss of NE fate, variant SCLC tumors regain cell-autonomous immune gene expression and exhibit higher tumor-immune interactions. Pan-cancer analysis revealed this NE lineage-specific immune phenotype in other cancers. Additionally, we observed MHC I re-expression in SCLC upon development of chemoresistance. These findings may help guide the design of treatment regimens in SCLC.

Sign in / Sign up

Export Citation Format

Share Document