In vitro interactions of cryopreserved stallion spermatozoa and oviduct (uterine tube) epithelial cells or their secretory products. 1999

J E Ellington, and J C Samper, and A E Jones, and S A Oliver, and K M Burnett, and R W Wright
Department of Veterinary Comparative Anatomy, Pharmacology and Physiology, Washington State University, Pullman 99164, USA. ellington@wsu.edu

Formation of a spermatozoa ('sperm') reservoir in the mare is thought to occur through lectin-mediated sperm attachment to the oviductal epithelium. Once attached, prefertilization sperm survival is supported by oviductal factors. Cryopreservation of stallion sperm decreases the number of sperm attaching to oviduct epithelial cells (OEC) and the length of time these sperm survive. Quantification of in vitro interactions between sperm and OEC in a co-culture system may provide an assay for functional integrity of cryopreserved or fresh sperm samples. Additionally, superior additives for in vitro handling of stallion sperm may be isolated from OEC secretory products. Experiment 1 compared first service conception (FSC) rates resulting from the use of cryopreserved sperm of seven stallions, with sperm function in co-culture such as attachment to OEC and subsequent survival time. Stallions were grouped by cumulative FSC rates observed over three seasons as having average (44 +/- 3%) or high (65 +/- 2%) fertility over a total of 217 first services (31 +/- 9 per stallion). Samples from stallions in the high fertility group had more (P = 0.04) sperm attached to OEC and longer subsequent sperm survival in co-culture (P = 0.05) as compared with those from the average fertility group. FSC rates correlated with numbers of sperm attaching to OEC and their survival time in co-culture (r > or = 0.71). In Experiment 2, the function of cryopreserved stallion sperm was evaluated in culture with OEC secretory products from three different sources. After 5 h of culture, sperm incubated with medium conditioned by bovine OEC which had been 'bioactivated' (e.g. previously exposed to sperm in culture) were found to be more (P < or = 0.05) motile and capacitated as compared to sperm in basal TALP medium alone. Sperm in this conditioned medium also survived longer (P = 0.05; 27 +/- 5 h vs. 17 +/- 4 h) than did those in control medium.

UI MeSH Term Description Entries
D008297 Male Males
D002417 Cattle Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor. Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D004847 Epithelial Cells Cells that line the inner and outer surfaces of the body by forming cellular layers (EPITHELIUM) or masses. Epithelial cells lining the SKIN; the MOUTH; the NOSE; and the ANAL CANAL derive from ectoderm; those lining the RESPIRATORY SYSTEM and the DIGESTIVE SYSTEM derive from endoderm; others (CARDIOVASCULAR SYSTEM and LYMPHATIC SYSTEM) derive from mesoderm. Epithelial cells can be classified mainly by cell shape and function into squamous, glandular and transitional epithelial cells. Adenomatous Epithelial Cells,Columnar Glandular Epithelial Cells,Cuboidal Glandular Epithelial Cells,Glandular Epithelial Cells,Squamous Cells,Squamous Epithelial Cells,Transitional Epithelial Cells,Adenomatous Epithelial Cell,Cell, Adenomatous Epithelial,Cell, Epithelial,Cell, Glandular Epithelial,Cell, Squamous,Cell, Squamous Epithelial,Cell, Transitional Epithelial,Cells, Adenomatous Epithelial,Cells, Epithelial,Cells, Glandular Epithelial,Cells, Squamous,Cells, Squamous Epithelial,Cells, Transitional Epithelial,Epithelial Cell,Epithelial Cell, Adenomatous,Epithelial Cell, Glandular,Epithelial Cell, Squamous,Epithelial Cell, Transitional,Epithelial Cells, Adenomatous,Epithelial Cells, Glandular,Epithelial Cells, Squamous,Epithelial Cells, Transitional,Glandular Epithelial Cell,Squamous Cell,Squamous Epithelial Cell,Transitional Epithelial Cell
D005187 Fallopian Tubes A pair of highly specialized canals extending from the UTERUS to its corresponding OVARY. They provide the means for OVUM transport from the ovaries and they are the site of the ovum's final maturation and FERTILIZATION. The fallopian tube consists of an interstitium, an isthmus, an ampulla, an infundibulum, and fimbriae. Its wall consists of three layers: serous, muscular, and an internal mucosal layer lined with both ciliated and secretory cells. Oviducts, Mammalian,Salpinges, Uterine,Salpinx, Uterine,Uterine Salpinges,Uterine Salpinx,Fallopian Tube,Uterine Tubes,Mammalian Oviduct,Mammalian Oviducts,Oviduct, Mammalian,Tube, Fallopian,Tube, Uterine,Tubes, Fallopian,Tubes, Uterine,Uterine Tube
D005260 Female Females
D006736 Horses Large, hoofed mammals of the family EQUIDAE. Horses are active day and night with most of the day spent seeking and consuming food. Feeding peaks occur in the early morning and late afternoon, and there are several daily periods of rest. Equus caballus,Equus przewalskii,Horse, Domestic,Domestic Horse,Domestic Horses,Horse,Horses, Domestic
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012661 Semen The thick, yellowish-white, viscid fluid secretion of male reproductive organs discharged upon ejaculation. In addition to reproductive organ secretions, it contains SPERMATOZOA and their nutrient plasma. Seminal Plasma,Plasma, Seminal
D013075 Sperm Capacitation The structural and functional changes by which SPERMATOZOA become capable of oocyte FERTILIZATION. It normally requires exposing the sperm to the female genital tract for a period of time to bring about increased SPERM MOTILITY and the ACROSOME REACTION before fertilization in the FALLOPIAN TUBES can take place. Capacitation of Spermatozoa,Capacitation, Sperm,Spermatozoa Capacitation
D013081 Sperm Motility Movement characteristics of SPERMATOZOA in a fresh specimen. It is measured as the percentage of sperms that are moving, and as the percentage of sperms with productive flagellar motion such as rapid, linear, and forward progression. Motilities, Sperm,Motility, Sperm,Sperm Motilities

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