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Mouse peritoneal macrophages at 3.5 or 48 hours, 0,0.5 or 5 μg/ml Leukocyte cell-derived chemotaxin 2 (LECT2),gene expression array, two independent biological replicates

ABSTRACT: LECT2 is a liver derived cytokine and involved in many pathologic conditions, especially in immune regulation. To better understand cellular and molecular mechanisms of LECT2 in immune response, mouse peritoneal macrophages were isolated from mouse peritonaeum. After treatment with 0, 0.5 or 5 μg/ml of LECT2 for 3.5 or 48 hours, gene expression profile in mouse peritoneal macrophages was measured using gene expression array. Results showed that LECT2 treatment led to the enhancement of cytokines secretion and phagocytosis in peritoneal macrophages.

ORGANISM(S): Mus musculus

PROVIDER: GSE33721 | GEO | 2011/12/13

SECONDARY ACCESSION(S): PRJNA148451

REPOSITORIES: GEO

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Mouse peritoneal macrophages at 3.5 or 48 hours, 0,0.5 or 5 μg/ml Leukocyte cell-derived chemotaxin 2 (LECT2),gene expression array, two independent biological replicates

Project description:LECT2 is a liver derived cytokine and involved in many pathologic conditions, especially in immune regulation. To better understand cellular and molecular mechanisms of LECT2 in immune response, mouse peritoneal macrophages were isolated from mouse peritonaeum. After treatment with 0, 0.5 or 5 μg/ml of LECT2 for 3.5 or 48 hours, gene expression profile in mouse peritoneal macrophages was measured using gene expression array. Results showed that LECT2 treatment led to the enhancement of cytokines secretion and phagocytosis in peritoneal macrophages. Gene expression in mouse peritoneal macrophages isolated from mouse peritonaeum were measured after exposure to 0,0.5 or 5 μg/ml LECT2 for 3.5 or 48 hours using gene expression array. Two independent experiments were performed using different mice for each experiment for gene expression array analysis.

2011-12-13 | E-GEOD-33721 | biostudies-arrayexpress

Ayu macrophages at 3.5 hours, 0, 0.5 or 5 ug/ml Leukocyte cell-derived chemotaxin 2 (LECT2), gene expression array, three independent biological replicates

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Ayu macrophages at 3.5 hours, 0, 0.5 or 5 ug/ml Leukocyte cell-derived chemotaxin 2 (LECT2), gene expression array, three independent biological replicates

Project description:Ayu, Plecoglossus altivelis, is an economically important amphidromous fish species cultured in East Asia. LECT2 is a liver derived cytokine and involved in many pathologic conditions, especially in immune regulation. To understand cellular and molecular mechanisms of LECT2 in immune response of ayu, macrophages were isolated from ayu head kidney. After treatment with 0, 0.5 or 5 ?g/ml of LECT2 for 3.5 hour, gene expression profile in ayu macrophages was measured using gene expression array. Results showed that LECT2 treatment led to the altered expression of immune related genes in ayu macrophages. Gene expression in ayu macrophages isolated from head kidney were measured after exposure to 0, 0.5 or 5 ?g/ml LECT2 for 3.5 hours using gene expression array. Three independent experiments were performed using different ayu for each experiment for gene expression array analysis.

2012-08-21 | E-GEOD-40221 | biostudies-arrayexpress

LECT2 effect on the bone marrow cells of mice

Project description:Hematopoietic stem cell (HSC) is under dynamic controlled in the bone marrow to differentiate into cells of all lineages that constitute the blood. The bone marrow niches form a specific microenvironment to maintain and regulate HSC. However, the mechanisms that the effect of cytokines from blood on HSC function still remain largely unknown. Leukocyte chemotactic factor 2 (LECT2), a liver-derived cytokine, is involved in many immune dysfunctions, such as sepsis, cancer and diabetes. Here we showed that LECT2 affected the gene expression of bone marrow cells in mice. Especially, we found that LECT2 treatment for 3 and 5 days led to the down-regulation of cytokines such as, TNF, IL-6, IL-1β, CXCL10, CCL4, CCL3 et al. Moreover, the functions and mechanisms for LECT2 regulated HSC in bone marrow is still needed further investigation.

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Transcriptional profile comparing murine monocytes infiltrating HCC tumors in the absence/presence of LECT2 expression in the liver

Project description:The aim of this project is to determine the differential expression of genes between monocytes infiltrating HCC nodules in the absence versus in the presence of LECT2

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Transcriptional profile comparing poorly diffentiated HCC nodules to well-differentiated HCC nodules arising in HCC/LECT2-KO mice

Project description:The aim of this project is to determine the differential expression of genes between poorly differntiated HCC tumor compared to differntiated tumor arising in HCC/LECT2-KO mice

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Leukocyte chemotactic factor 2 (LECT2)-associated renal amyloidosis: a case series.

Project description:Renal amyloidosis is characterized by the pathologic deposition within glomeruli and/or interstitium of congophilic fibrils, most often composed of either immunoglobulin light chains or serum amyloid A-related protein and, less commonly, mutated forms of apolipoproteins AI or AII, lysozyme, fibrinogen, gelsolin, or transthyretin.Case series.10 patients with renal amyloidosis who had an amyloidogenic protein that was not identified using routine immunohistochemistry.Clinical, pathologic, biochemical, and genetic characteristics.Tandem mass spectrometry was used to analyze fibrils extracted from sections of formalin-fixed paraffin-embedded amyloid-containing kidney biopsy specimen blocks.Chemical analyses showed peptides corresponding to the carboxy-terminal portion of the leukocyte chemotactic factor 2 (LECT2) molecule. In addition, deposits were immunostained using an anti-human LECT2 monoclonal antibody. Plasma specimens were available from 2 individuals for whom LECT2 concentration in these samples was within the reference range. Additionally, in 4 of the cases analyzed at the molecular level, isolation of genomic DNA and polymerase chain reaction amplification of LECT2-encoding exons showed no mutations. However, all were homozygous for the G allele encoding valine at position 40 in the mature protein, a finding confirmed using restriction enzyme analysis of the polymorphic site.Causality is not addressed.Based on our studies, we posit that LECT2-associated renal amyloidosis represents a unique and perhaps not uncommon disease, especially in Mexican Americans. The pathogenesis, extent, and prognosis remain to be determined.

| S-EPMC2991509 | biostudies-literature