Bone marrow haematopoietic stem cells influence liver homeostatic networks and cancer development
bioRxiv(2022)
Abstract
In fatty liver disease, systemic homeostasis is perturbed. While pre-clinical models are used to understand its pathogenesis, translating this knowledge to patients is difficult. However, by focusing on the most preserved homeostasis systems between species and models, novel disease dimensions can be unearthed. We interrogated core liver gene co-expression networks in a mouse model of liver cancer following dietary challenge. Immunometabolic modules showed temporal changes under the influence of diet duration and aging. The behaviour of immune network in tumours mirrored their counterparts in non-tumour liver. A high immune response network was associated with a lower tumour burden in mice and humans. This module in mice was enriched for genes related to haematopoietic cell differentiation. Consistently, the bone marrow haematopoietic stem and progenitor cells response was reflective of the liver immune response. Linking haematopoiesis to hepatic homeostasis uncovers a hitherto unexplored dimension of tissue crosstalk that can inform pathogenesis.
### Competing Interest Statement
The authors have declared no competing interest.
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Key words
stem cells,cancer development,bone marrow,liver,dietary
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