Analysis of hormone effects on irradiated LBNF1 rat testes, which contain only somatic cells except for a few type A spermatgogonia. Rats were treated for 2 weeks with either sham treatment (group X), hormonal ablation (GnRH antagonist and the androgen receptor antagonist flutamide, group XAF), testosterone supplementation (GnRH antagonist and testosterone, group XAT), and FSH supplementation ((GnRH antagonist, androgen receptor antagonist, and FSH, group XAFF). Results provide insight into identifying genes in the somatic testis cells regulated by testosterone, LH, or FSH.
Changes in gene expression in somatic cells of rat testes resulting from hormonal modulation and radiation-induced germ cell depletion.
Specimen part, Treatment
View SamplesDespite numerous observations of effects of estrogens on spermatogenesis, identification of estrogen-regulated genes in the testis is limited. We previously showed in rats, in which irradiation had completely blocked spermatogonial differentiation, that testosterone (T) suppression with GnRH-antagonist and antiandrogen stimulated spermatogenic recovery and addition of estradiol (E2) to this regimen accelerated this recovery. We report here the global changes in testicular cell gene expression induced by the E2 treatment. By minimizing the changes in other hormones and also having concurrent data on the regulation of the genes by those hormones, we were able to dissect the effects of estrogen on gene expression, independent of gonadotropin or T changes. Expression of 20 genes, largely in somatic cells, was up- or down-regulated between 2- and 5-fold by E2. There were also early germ cell genes whose expression increased but this was a result of a small increase in spermatogonial numbers. The striking enrichment of transcripts not corresponding to known genes among the E2-downregulated probes led to the identification of one as micro-RNA miR-34a. We propose that genes whose expression levels are altered in one direction by irradiation and in the opposite direction by both T suppression and E2 treatment are candidates for controlling the block in differentiation. Several genes, including insulin-like 3 (Insl3), satisfied those criteria. If they are indeed involved in the inhibition of spermatogonial differentiation, they may be candidate targets for clinical treatments to enhance recovery of spermatogenesis following gonadotoxic exposures, such as those resulting from cancer therapy.
Estrogen-regulated genes in rat testes and their relationship to recovery of spermatogenesis after irradiation.
Specimen part, Treatment
View SamplesAnalysis of LBNF1 rat testes from controls, containing both somatic and all germ cell types and from irradiated rats in which all cells germ cells except type A spermatgogonia are eliminated. Results provide insight into distinguishing germ and somatic cell genes and identification of somatic cell genes that are upregulated after irradiation.
Changes in gene expression in somatic cells of rat testes resulting from hormonal modulation and radiation-induced germ cell depletion.
Specimen part
View SamplesRNA-seq study of tumors that develop in mice after injection of gastric carcinoma cell line, AGS, with or without Epstein-Barr virus infection
No associated publication
Sex, Specimen part, Disease, Cell line
View SamplesRNA-Seq study of tumors that develop in mice after injection of nasopharyngeal carcinoma (NPC) cell line C666.1 and the xenograph tumors C15 and C17
No associated publication
Sex, Specimen part, Disease, Cell line
View Samplesthe goal of this study are to reveal potential functions of novel lncRNAs in PDLSCs ,systematicly characterize PDLSC related lncRNAs and protein coding genes in uPDLSCs,dPDLSCs and TNF-a-dPDLSCs with Next Generation Sequencing.
No associated publication
Sex, Specimen part, Treatment
View SamplesMesenchymal stromal cells (MSCs), which have immunosuppressive and trophic abilities that are induced by inflammatory cytokines, have emerged as a promising option for cell-based therapy. The cytokine profiles vary substantially across different diseases and stages of disease progression, which has been shown to influence the curative properties of MSCs. Our knowledge about how MSCs respond systemically to cytokines is still limited. Here, we individually stimulated MSCs in vitro with IFN-?and used RNA-Seq to analyze their expression profiles.
No associated publication
Sex, Specimen part
View SamplesTranscriptome analysis of MCF-7 cells exposed for 48 hours to various concentrations of xenoestrogen chemicals.
Expressomal approach for comprehensive analysis and visualization of ligand sensitivities of xenoestrogen responsive genes.
Cell line
View SamplesAnalysis of 143 completely histologically-normal breast tissues resulted in the identification of a malignancy risk gene signature that may serve as a marker of subsequent risk of breast cancer development.
Proliferative genes dominate malignancy-risk gene signature in histologically-normal breast tissue.
No sample metadata fields
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Complementary strand microRNAs mediate acquisition of metastatic potential in colonic adenocarcinoma.
Sex
View Samples