دور الوحيدة الفردية الدوينية CI للبروتين كيناز CK2 في العقم الذكري مجهول السبب

الملخص EN

Protein kinase CK2 which was formerly known as casein kinase is a ubiquitously expressed protein kinase.

Its expression and its activity as a protein kinase is closely connected with proliferation i.e.

rapidly proliferating cells have high amounts of the enzyme and its activity in general higher than in normal cells.

Protein kinase CK2 is composed of two regulatory β subunits and two Catalytic α, ά subunits, but these subunits are also found in its free form.

Although CK2 is expressed in every tissue, there are some differences in the expression level in various tissues.

CK2ά is most highly expressed in brain and testes whereas only low amounts of CK2ά are found in other tissues.

The regulatory β subunit and the catalytic α subunit are both absolutely necessary for the survival of cells, because the Knockouts are lethal during embryogenesis.

Mice with a CK2ά Knockout are viable however the male mice are infertile.

Materials and Methods: 83 men were involved in this study, they were 17 normal men and 66 men with idiopathic infertility problems.

Required sperm samples were obtained from an in vitro fertilization unit.

The sperms were extracted and their protein content is determined.

Equal amounts of protein will be loaded on SDS-polyacrylamide gel.

After a Western Blotting, the CK2ά, CK2α and CK2β subunits were detected by specific antibodies.

Results: the presence percentage of CK2ά was 12.1% in infertile men group, and it was significantly lower compared to control group, which was 100 %.

Conclusion: the absence of CK2ά from the sperm would be used as a marker for the identification of idiopathic men infertility