Cited by 80Organ Transplantation Techniques and OutcomesPhagocytosis and Immune RegulationLiver physiology and pathology

T‐Cell Immunoglobulin and Mucin Domain‐Containing Protein‐4 Is Critical for Kupffer Cell Homeostatic Function in the Activation and Resolution of Liver Ischemia Reperfusion Injury

Open access
Ni, Ming, Zhang, Jing, Sosa, Rebecca, Zhang, Hanwen, Wang, Han, Jin, Dan, Crowley, Kaitlyn, Naini, Bita +5 more·2021·Hepatology

Abstract

Background and Aims: Liver ischemia reperfusion injury (IRI) remains an unresolved clinical problem. This study dissected roles of liver‐resident macrophage Kupffer cells (KCs), with a functional focus on efferocytosis receptor T‐cell immunoglobulin and mucin domain‐containing protein‐4 (TIM‐4), in both the activation and resolution of IRI in a murine liver partial warm ischemia model. Approach and Results: Fluorescence‐activated cell sorting results showed that TIM‐4 was expressed exclusively by KCs, but not infiltrating macrophages (iMФs), in IR livers. Anti‐TIM‐4 antibody depleted TIM‐4+ macrophages in vivo, resulting in either alleviation or deterioration of liver IRI, which was determined by the repopulation kinetics of the KC niche with CD11b+ macrophages. To determine the KC‐specific function of TIM‐4, we reconstituted clodronate‐liposome–treated mice with exogenous wild‐type or TIM‐4‐deficient KCs at either 0 hour or 24 hours postreperfusion. TIM‐4 deficiency in KCs resulted in not only increases in the severity of liver IRI (at 6 hours postreperfusion), but also impairment of the inflammation resolution (at 7 days postreperfusion). In vitro analysis revealed that TIM‐4 promoted KC efferocytosis to regulate their Toll‐like receptor response by up‐regulating IL‐10 and down‐regulating TNF‐α productions. Conclusions: TIM‐4 is critical for KC homeostatic function in both the activation and resolution of liver IRI by efferocytosis.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/hep.31906

Cites

51 of 51 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Previous work shows that TIM4 can act as an efferocytosis receptor and that TIM4 expression by liver macrophages is decreased in MASH.

    “These findings are consistent with previous work showing that TIM4 can function as an efferocytosis receptor (21–23) and that TIM4 expression by liver macrophages is decreased in MASH (24–27).”

    From Impaired TIM4-mediated efferocytosis by liver macrophages contributes to fibrosis in metabolic dysfunction–associated steatohepatitis (2025) · cites this paper as [23]

    The Introduction and Discussion describe TIM-4 as an efferocytosis co-receptor, and the Results show that it facilitates efferocytosis by Kupffer cells. The paper reports decreased liver TIM-4 after ischemia and in Kupffer cells after LPS stimulation, but does not report decreased expression in MASH. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Previous in vitro work shows TIM4 can mediate efferocytosis by normal liver resident macrophages (KCs).

    “Previous in vitro studies have shown that T cell immunoglobulin and mucin domain containing 4 (TIM4; gene Timd4) can mediate efferocytosis by normal liver resident macrophages [Kupffer cells (KCs)] (21–23)”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ni, M., Zhang, J., Sosa, R., Zhang, H., Wang, H., Jin, D., Crowley, K., Naini, B., Reed, F. E., Busuttil, R. W., Kupiec‐Weglinski, J. W., Wang, X., & Zhai, Y.
Affiliations
  • University of California, Los Angeles (US)
  • Chinese Academy of Medical Sciences & Peking Union Medical College (CN)
Corresponding author
  • Wang, Xuehao
  • Zhai, Yuan
Venue
Hepatology
Published
2021-08-10
Volume
74
Issue
4
Pages
2118-2132
ISSN
  • 0270-9139 (ISSN-L)
  • 1527-3350
OpenAlex
W3160441943
Cited by
80
References
51
Citations by year
2026: 16 · 2025: 17 · 2024: 14 · 2023: 20 · 2022: 12 · 2021: 1
FWCI
11.04
Type
journal article
Language
en
Open access
Locations
  • Hepatology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institute of Allergy and Infectious Diseases (P01Al120944, P01AI120944)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK102110, R01DK107533, R01DK102110, R01DK119338, DK119338)
Topics
  • Health Sciences › Medicine › Surgery › Organ Transplantation Techniques and Outcomes
  • Life Sciences › Immunology and Microbiology › Immunology › Phagocytosis and Immune Regulation
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
Keywords
TIM-4, Kupffer cells, hepatic ischemia-reperfusion injury, efferocytosis, inflammation resolution, macrophage homeostasis, Toll-like receptor response, IL-10, TNF-α, clodronate liposome depletion, hepatic macrophages
MeSH terms
Animals, Homeostasis, Inflammation, Kupffer Cells, Liver Diseases, Membrane Proteins, Tumor Necrosis Factor-alpha, Signal Transduction, Reperfusion Injury, Interleukin-10, Toll-Like Receptors, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review