Cited by 45Liver physiology and pathologyLiver Disease Diagnosis and TreatmentOrgan Transplantation Techniques and Outcomes

Hepatic stellate cells maintain liver homeostasis through paracrine neurotrophin-3 signaling that induces hepatocyte proliferation

Open access
Trinh, Vincent Quoc-Huy, Lee, Ting-Fang, Lemoinne, Sara, Ray, Kevin C., Ybanez, Maria D., Tsuchida, Takuma, Carter, James K., Agudo, Judith +4 more·2023·Science Signaling

Abstract

Organ size is maintained by the controlled proliferation of distinct cell populations. In the mouse liver, hepatocytes in the midlobular zone that are positive for cyclin D1 (CCND1) repopulate the parenchyma at a constant rate to preserve liver mass. Here, we investigated how hepatocyte proliferation is supported by hepatic stellate cells (HSCs), pericytes that are in close proximity to hepatocytes. We used T cells to ablate nearly all HSCs in the murine liver, enabling the unbiased characterization of HSC functions. In the normal liver, complete loss of HSCs persisted for up to 10 weeks and caused a gradual reduction in liver mass and in the number of CCND1 + hepatocytes. We identified neurotrophin-3 (Ntf-3) as an HSC-produced factor that induced the proliferation of midlobular hepatocytes through the activation of tropomyosin receptor kinase B (TrkB). Treating HSC-depleted mice with Ntf-3 restored CCND1 + hepatocytes in the midlobular region and increased liver mass. These findings establish that HSCs form the mitogenic niche for midlobular hepatocytes and identify Ntf-3 as a hepatocyte growth factor.

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Crossref · 10.1126/scisignal.adf6696

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  • HSC-depleted livers were smaller and contained smaller hepatocytes and less Ccnd1 mRNA.

    “As reported previously19, HSC-depleted livers were smaller and contained smaller hepatocytes and less Ccnd1 mRNA, a potent driver of hepatocyte proliferation23 (Fig. 1a and Extended Data Fig. 1d).”

    From Hepatic stellate cells control liver zonation, size and functions via R-spondin 3 (2025) · cites this paper as [19]

    The Results section ('Sustained HSC depletion causes loss of liver mass and reduces the number of midlobular hepatocytes'; page unavailable) reports smaller livers and reduced Ccnd1 expression in HSC-depleted mice. It reports fewer midlobular hepatocytes, but does not establish that individual hepatocytes were smaller. (LLM, conf=0.88)

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  • The JEDI depletion method revealed a role for HSCs in homeostatic hepatocyte proliferation.

    “Recently, the more specific and efficient just eGFP death-inducing (JEDI) depletion method revealed a role for HSCs in homeostatic hepatocyte proliferation19.”
  • Top altered pathways in HSC-depleted livers using iDTR or JEDI were metabolic, including drug, cytochrome P450, linoleic acid, tyrosine, tryptophan and caffeine metabolism.

    “Notably, the top altered pathways in HSC-depleted livers, achieved using the iDTR system or the JEDI model19, were metabolic, including drug, cytochrome P450, linoleic acid, tyrosine, tryptophan and caffeine metabolism (Extended Data Fig. 4a and Supplementary Table 2).”
  • HSC mediators besides RSPO3, such as HGF, and possibly neurotrophin-3 or epiregulin, may be involved in additional aspects of HSC-hepatocyte cross-talk and together with ECs collaboratively control hepatocyte health and functions.

    “Moreover, HSC mediators besides RSPO3, such as HGF, but possibly also neurotrophin-319 or epiregulin60 may be involved in additional aspects of HSC–hepatocyte cross-talk and—together with ECs29,59—collaboratively control hepatocyte health and functions.”

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Research works printed but not linked: 3

  1. [66]Dapito DH, Schwabe RF, in Stellate Cells in Health and Disease, Eds. (Elsevier, 2015), pp. 145– 162.
  2. [67]Oda M, Yokomori H, Han JY, Clin Hemorheol Microcirc 34, 11 (2006). 16543613
  3. [84]Modi S, New England Journal of Medicine N Engl J Med 387, 9 (2022).

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Authors
Trinh, V. Q.-H., Lee, T.-F., Lemoinne, S., Ray, K. C., Ybanez, M. D., Tsuchida, T., Carter, J. K., Agudo, J., Brown, B. D., Akat, K. M., Friedman, S. L., & Lee, Y. A.
Affiliations
  • Vanderbilt University Medical Center (US)
  • Icahn School of Medicine at Mount Sinai (US)
  • Harvard University (US)
Corresponding author
  • Trinh, Vincent Quoc-Huy
  • Lee, Ting-Fang
  • Lee, Youngmin A.
Venue
Science Signaling
Published
2023-05-30
Volume
16
Issue
787
Pages
eadf6696-eadf6696
ISSN
  • 1937-9145 (ISSN-L)
  • 1945-0877
OpenAlex
W4378782998
Cited by
45
References
89
Citations by year
2026: 12 · 2025: 22 · 2024: 6 · 2023: 5
FWCI
7.53
Type
journal article
Language
en
Open access
Locations
  • Science Signaling (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Vanderbilt University
  • Vanderbilt University Medical Center (P30DK058404)
  • National Institutes of Health
  • National Cancer Institute (P50CA236733)
  • National Institute of General Medical Sciences (T32GM146636)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK056621, R01DK128289, P30DK058404, P30DK020541)
  • National Center for Complementary and Integrative Health (R01AT011326)
Topics
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Health Sciences › Medicine › Surgery › Organ Transplantation Techniques and Outcomes
Keywords
hepatic stellate cells, hepatocyte proliferation, neurotrophin-3, TrkB signaling, liver homeostasis, cyclin D1, pericytes, HSC depletion, liver mass, hepatocyte growth factor
MeSH terms
Animals, Liver, Neurotrophin 3, Hepatocytes, Cell Proliferation, Mice, Hepatic Stellate Cells

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