Project description:Transcriptional profiling of adult mouse liver tissue comparing offspring derived from sperm and seminal plasma of normal protein diet fed males (controls, NN), sperm and seminal plasma from males fed a low protein diet fed males (LL), sperm from normal protein fed males and seminal plasma from low protein fed males (NL) or sperm from low protein diet fed males and seminal plasma from normal protein diet males (NL). The first letter denotes the diet of the sperm donor and the second letter the diet of the seminal plasma donor. Three-condition experiment: NN vs. LL, NN vs. NL, NN vs. LN. Adult offspring liver tissue. Biological replicates: 7 control (NN), 9 LL, 7 NL and 7 LN. One replicate per array chip.
Project description:Sperms being foreign to the female are to be promptly eliminated by the female local immune defense. However, avoiding the local immune defense sperm can be stored for lenthy period in the oviductal sperm reservoir. It is currently unknown whether oviductal sperm reservoirs changes their gene expression to tolerate the spermatozoa after mating or sperm free seminal plasma infusion. Therefore this was tested using Swedish Landrace pigs in this study using cDNA microarray. We used 12 sows seperated into three groups- either oestrus sows were inseminated with 50 ml BTS (control, n=4) or mated with boars (treatment 1, n=4) or inseminated with sperm-free seminal plasma (treatment 2, n=4). The utero-tubal junction was retrieved within 24 h of treatment by operation.
Project description:Sperms being foreign to the female are to be promptly eliminated by the female local immune defense. However, avoiding the local immune defense sperm can be stored for lenthy period in the oviductal sperm reservoir. It is currently unknown whether oviductal sperm reservoirs changes their gene expression to tolerate the spermatozoa after mating or sperm free seminal plasma infusion. Therefore this was tested using Swedish Landrace pigs in this study using cDNA microarray.
Project description:The seminal plasma contains large quantities of extracellular vesicles (EVs). However, the role of these EVs and their interactions with sperms are not clear. To identify the important molecules affecting sperm motility in EVs, we sequenced the EVs in the seminal plasma of Yorkshire boars with different sperm motility using whole RNA sequence.
Project description:We hypothesized that seminal plasma, the acellular seminal fluid component, influences the endometrium stimulating the immune system and facilitating the implantation. We designed a randomized, double-blinded, placebo-controlled trial, and we used microarray analysis to evaluate differences in the endometrial transcriptomic profile after vaginal seminal plasma application. Differential gene pathways analysis showed an upregulation of pathways associated with the immune response, cell viability, proliferation and cellular movement, implantation, embryo development, oocyte maturation and angiogenesis. We compared our results with similar studies in pigs, mice and in vitro human endometrial cells and found similar and found comparable results. Our data show that seminal plasma has a positive effect on the endometrium during the implantation window.
Project description:We characterized the seminal plasma proteome of eight Beijing-you (BJY) chickens, an indigenous chicken breed in China, differ in sperm motility.
Project description:We conducted a proteomic investigation into sperm and seminal fluid proteins on individual drones (n = 3-5 per colony) from six colonies. The colonies were either from Southern Californian lineages (N = 2) or Northern Californian lineages (N = 4). The purpose of this dataset is to assess the individual- and colony-level variability in sperm and seminal fluid protein expression.
Project description:Quantitative proteomic studies are contributing greatly to our understanding of the spermatozoon through the provision of detailed information on the proteins spermatozoa acquire and shed in the acquisition of fertility. Extracellular vesicles (EVs) are thought to aid in the delivery of proteins to spermatozoa in the male reproductive tract. The aim of this study was to identify EV proteins isolated from ram seminal plasma. High-speed centrifugation using Optiprep sucrose gradients was used to purify two EV populations from seminal plasma. Liquid chromatography and tandem mass spectrometry (LC-MS/MS) with quantitative SWATH was used to identify proteins enriched in the extracellular vesicle preparation (e.g. EDIL3) and those that were co-isolated with vesicular preparations due to their abundance or adhesive nature (e.g. BSPs). Ram sperm plasma membrane proteins were also isolated using nitrogen cavitation and identified with LC-MS/MS to better understand the interplay of proteins between the sperm membrane and extracellular environment. The categorisation of proteins enriched in the EV population (P<0.05, 2-fold increase compared to whole seminal plasma) according to their function revealed three main groupings: vesicle biogenesis, metabolism and membrane adhesion and remodelling. The latter group contained many reproduction-specific proteins that show demonstrable links to sperm fertility. Many of these membrane-bound proteins show testicular expression and are shed from the sperm surface during epididymal maturation (e.g. TEX101, LY6K). Their association with seminal EVs suggests that EVs may not only deliver protein cargo to spermatozoa but also assist in the removal of proteins from the sperm membrane.
Project description:Scarcely understood defects lead to asthenozoospermia which results in poor fertility outcomes. Incomplete knowledge of these defects hinders the development of new therapies and reliance on interventional therapies, such as in vitro fertilization, increases. Sperm cells, being transcriptionally and translationally silent, necessitate the proteomic approach to study the sperm funnction. We have performed a differential proteomics analysis of human sperm and seminal fluid and identified over 1,700 proteins. We have included 667 proteins in sperm and 430 proteins in seminal plasma dataset for further analysis. Statistical and mathematical analysis combined with pathway analysis and self organizing maps clustering and correlation was performed on the dataset. It was found that sperm proteomic signature combined with statistical analysis as opposed to the seminal plasma proteomic signature can differentiate the normozoospermic versus the asthenozoospermic sperm samples.