The Suppressor of cytokine signaling (SOCS) family of negative regulatory proteins are upregulated in response to several cytokines and pathogen-associated molecular patterns (PAMPs), and suppress cellular signaling responses by binding receptor phosphotyrosine residues. Exposure of bone marrow-derived dendritic cells (BMDCs) to 1D8 cells, a murine model of ovarian carcinoma, suppresses their ability to express CD40 and stimulate antigen specific responses in response to PAMPs, and in particular to poly I: C with the upregulated SOCS3 transcript and protein levels. The ectopic expression of SOCS3 in both the macrophage cell line RAW264.7 and BMDCs decreased signaling in response to both poly I:C and IFN. Further, knockdown of SOCS3 transcripts significantly enhanced the responses of RAW264.7 and BMDCs to both poly I: C and IFN. Immunoprecipitation and pull-down studies demonstrate that SOCS3 binds to the IFN receptor TYK2. Since poly I: C triggers autocrine IFN signaling, binding of SOCS3 to TYK2 may thereby suppress the activation of BMDCs by polyI:C and IFN. Thus, elevated levels of SOCS3 in tumor-associated DCs may potentially resist the signals induced by TLR3 ligands and type I interferon to decrease DC activation via binding with IFN receptor TyK2.
Tumor-induced suppressor of cytokine signaling 3 inhibits toll-like receptor 3 signaling in dendritic cells via binding to tyrosine kinase 2.
No sample metadata fields
View SamplesLRRC19 (Leucine repeat receptor containing 19) is a newfound Toll-like receptor without definite function reported. We have detected that the lrrc19 gene had a high expression level in both human and mouse intestines and concentrated on the effect of this immune receptor in mediating the process of enteritis and intestinal cancer. To have a systematic understanding on the influence of this gene on the intracelluar environment of intestinal cell, we have conducted a microarray experiment to compare the transcriptomes of the WT and KO mice intestines under the same experimental condition.
No associated publication
Age, Specimen part
View SamplesMammalian telomeres are formed by tandem repeats of the TTAGGG sequence, and shorten with each round of cell division in the absence of telomerase. Telomere shortening and dysfunction has been implicated in the pathology of several age-related diseases and premature ageing syndromes. Telomerase is important for telomere length maintenance. Telomerase RNA component, also known as TERC, is a component of telomerase. Terc knockout leads to telomerase deficiency and telomere shortening. Heterozygous telomerase-deficient (Terc+/-) mice were housed and bred for homozygous generation. ESC lines were generated with high efficiency from wild-type (WT, Terc+/+), heterozygous (Het, Terc+/-) and early- to late-generation (G1, G3 and G4) Terc-/- mouse blastocysts. Telomeres were shorter in Terc+/- ES cells than in WT ES cells, and further shortened from G1 to G4 Terc-/- ES cells. We took advantage of ES cell lines with various telomere lengths to investigate roles of telomere length on differentiation capacity of ES cells. We found that telomere length, but not telomerase activity, is required for differentiation of ES cells into epidermis.
No associated publication
Specimen part, Cell line
View SamplesZebrafish is ideal model organism to study myelination and demyelination. We could use this model to screen demylination relative genes and provide a new idea for clinic therapy.
Down-regulation of interleukin 7 receptor (IL-7R) contributes to central nervous system demyelination.
Specimen part
View SamplesTo analyze the molecular mechanisms by which 7l may induce apoptosis, microarray gene expression profiling of 7l treated KG1a cells was performed.
No associated publication
Cell line
View SamplesInterleukin 7 receptor (IL7R) is a transmembrane receptor which belongs to the type I cytokine receptor family. Recent studies have indicated that the IL7R is involved in the pathogenesis of some neurodegenerative disorders, such as multiple sclerosis. Previously, we found that the retinal neuroregenation was delayed following the targeted knockdown of IL7R, highlighting the potential role of IL7R in the development of nervous system.
Knockout of zebrafish interleukin 7 receptor (IL7R) by the CRISPR/Cas9 system delays retinal neurodevelopment.
Age, Specimen part
View SamplesMyeloid-derived suppressor cells (MDSCs) have emerged as major regulators of immune responses in cancer and other pathological conditions. At the epigenetic level, lncRNA play an important role in cell differentiation and function. We identify a novel long non-coding RNA (lncRNA) termed as lnc-mdsc in MDSCs, which may tightly control the development of MDSCs.
No associated publication
No sample metadata fields
View SamplesLactobacillus NK2 (L.NK2) is a commensal microbe, isolated from the mouse intestinal feces in our lab. To examine the potential role of L. NK2 in the gut immunity, we monocolonized GF mice with L.NK2. And, we conducted a microarray experiment to compare the transcriptomes of GF and L.NK2-colonized mice intestines under the same experimental condition
No associated publication
Specimen part
View SamplesLactobacillus NK318.1 is a commensal microbe isolated from the mouse intestinal feces in our lab. To examined the potential role of L. NK318.1 in the gut immunity, we monocolonized GF mice with L.NK318.1. And, we conducted a microarray experiment to compare the transcriptomes of GF and NK318.1 mice intestines under the same experimental condition
Gut REG3γ-Associated <i>Lactobacillus</i> Induces Anti-inflammatory Macrophages to Maintain Adipose Tissue Homeostasis.
Specimen part
View SamplesIn this study, the ectopic overexpressions of the wild-type Helios-1, non-canonical short isoforms Helios-190-1186, Helios-326-1431, and control in the Jurkat cells were utilized as the routine in vitro model of the T-cell acute lymphoblastic leukemia (T-ALL).
No associated publication
Specimen part
View Samples