Related Experiment Video
Updated: Mar 15, 2026
04:36
Author Spotlight: A Simple and Cost-Effective Method for Leukocyte Analysis in Semen
Published on: January 19, 2024
5.7K
Semen proteomics and male infertility
Meritxell Jodar1, Ada Soler-Ventura1, Rafael Oliva1
1Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Faculty of Medicine, University of Barcelona, Casanova 143, 08036 Barcelona, Spain; Biochemistry and Molecular Genetics Service, Hospital Clínic, Villarroel 170, 08036 Barcelona, Spain.
Journal of Proteomics
|August 31, 2016
Summary
Semen contains more than just sperm; it includes proteins and RNAs vital for embryo development. Proteomics studies reveal insights into male infertility and potential clinical biomarkers.
Area of Science:
- Reproductive Biology
- Proteomics
- Male Infertility
Background:
- Semen is a complex fluid comprising spermatozoa and secretions from accessory sex glands.
- Spermatozoa deliver male DNA and also provide proteins and RNAs essential for embryogenesis.
- Seminal fluid plays a crucial role beyond merely transporting spermatozoa.
Purpose of the Study:
- To review sperm cell biology and sample preparation for proteomic studies.
- To describe the current state of sperm and seminal fluid proteomes.
- To explore potential communication between sperm and seminal fluid and its implications for male infertility.
Main Methods:
- High-throughput proteomic technologies were utilized.
- Integrative analysis of testes, sperm, and seminal fluid proteomes was performed.
- Differential proteomic studies focused on male infertility were compiled.
Main Results:
- Spermatozoa are crucial for embryogenesis, providing epigenetically marked DNA, proteins, and RNAs.
- Seminal fluid has a significant role in reproductive processes.
- Comparative proteomic studies offer insights into pathogenic mechanisms of infertility.
Conclusions:
- Proteomic analysis of semen provides insights into sperm biology and seminal fluid functions.
- Understanding sperm and seminal fluid proteomes can aid in identifying biomarkers for male infertility.
- Future research directions in male infertility diagnostics and therapeutics are highlighted.
Related Concept Videos
01:23Infertility in Males
653
Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
653
01:22Sperm Structure and Semen Composition
13.1K
During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
13.1K
01:41Spermatogenesis
124.4K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
124.4K
01:22Spermatogenesis
10.5K
Spermatogenesis is a complex process that involves the development of sperm cells from undifferentiated stem cells in the seminiferous tubules of the testes. The process is essential for the production of mature and functional sperm cells that are capable of fertilizing an egg.
The process of spermatogenesis can be divided into mitosis, meiosis, and spermiogenesis. During mitosis, the spermatogonia or stem cells divide to produce two identical daughter cells, type A and B spermatogonia. Type-A...
The process of spermatogenesis can be divided into mitosis, meiosis, and spermiogenesis. During mitosis, the spermatogonia or stem cells divide to produce two identical daughter cells, type A and B spermatogonia. Type-A...
10.5K
01:15Sperm Transport
4.4K
The journey of sperm from its origin to the point of ejaculation begins within the seminiferous tubules of the testis. Here, Sertoli cells produce fluid that propels non-motile sperm through a series of conduits, starting with the straight tubules leading to the rete testis. This interconnected network of tubules acts as the initial pathway for sperm, guiding them into the efferent ductules and then into the epididymis for maturation.
The maturation phase occurs in the epididymis, where sperm...
The maturation phase occurs in the epididymis, where sperm...
4.4K
01:16Accessory Glands of the Male Reproductive System
4.4K
The accessory ducts involved in sperm maturation and transportation include the epididymides, vasa deferentia, ejaculatory ducts, and urethra. These ducts play a critical role in the maturation, storage, and transportation of sperm from the testes to the urethra, where it is then released during ejaculation.
The epididymis is a small, comma-shaped organ located at the back of each testicle. The epididymis can be divided into three main parts: the head, body, and tail. The head of the epididymis...
The epididymis is a small, comma-shaped organ located at the back of each testicle. The epididymis can be divided into three main parts: the head, body, and tail. The head of the epididymis...
4.4K