K. Liu

Publications153
h-index42
Citations6,182
Highly Influential Citations256
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A2A adenosine receptor protects tumors from antitumor T cells
The A2A adenosine receptor (A2AR) has been shown to be a critical and nonredundant negative regulator of immune cells in protecting normal tissues from inflammatory damage. We hypothesized that A2AR… Expand
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GPR109A is a G-protein-coupled receptor for the bacterial fermentation product butyrate and functions as a tumor suppressor in colon.
Short-chain fatty acids, generated in colon by bacterial fermentation of dietary fiber, protect against colorectal cancer and inflammatory bowel disease. Among these bacterial metabolites, butyrate… Expand
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Extracellular signal-regulated kinase signaling pathway regulates breast cancer cell migration by maintaining slug expression.
Cell migration is a critical step in cancer cell invasion. Recent studies have implicated the importance of the extracellular signal-regulated kinase (ERK) signaling pathway in cancer cell migration.… Expand
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Autophagy is a renoprotective mechanism during in vitro hypoxia and in vivo ischemia-reperfusion injury.
Autophagy mediates bulk degradation and recycling of cytoplasmic constituents to maintain cellular homeostasis. In response to stress, autophagy is induced and may either contribute to cell death or… Expand
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The copper transporter Ctr1 contributes to cisplatin uptake by renal tubular cells during cisplatin nephrotoxicity.
The usefulness and efficacy of cisplatin, a chemotherapeutic drug, are limited by its toxicity to normal tissues and organs, including the kidneys. The uptake of cisplatin in renal tubular cells is… Expand
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The expression profiles and regulation of PD-L1 in tumor-induced myeloid-derived suppressor cells
ABSTRACT Programmed death-ligand 1 (PD-L1) is an inhibitory ligand that binds to PD-1 to suppress T cell activation. PD-L1 is constitutively expressed and inducible in tumor cells, but the expression… Expand
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Cutting Edge: Telomerase Activation in Human T Lymphocytes Does Not Require Increase in Telomerase Reverse Transcriptase (hTERT) Protein But Is Associated with hTERT Phosphorylation and Nuclear…
Capacity for cellular replication is critically important for lymphocyte function and can be regulated by telomerase-dependent maintenance of telomere length. In contrast to most normal human somatic… Expand
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Myeloid-derived suppressor cell development is regulated by a STAT/IRF-8 axis.
Myeloid-derived suppressor cells (MDSCs) comprise immature myeloid populations produced in diverse pathologies, including neoplasia. Because MDSCs can impair antitumor immunity, these cells have… Expand
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IL-15 mimics T cell receptor crosslinking in the induction of cellular proliferation, gene expression, and cytotoxicity in CD8+ memory T cells
Generation of CD8+ memory T cells requires antigenic stimulation through T cell receptor (TCR); however, maintenance of CD8+ memory T cells seems to be mediated by cytokines, such as IL-15, in a… Expand
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Rapid and transient recruitment of DNMT1 to DNA double-strand breaks is mediated by its interaction with multiple components of the DNA damage response machinery.
DNA methylation is an epigenetic mark critical for regulating transcription, chromatin structure and genome stability. Although many studies have shed light on how methylation impacts transcription… Expand
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