Protein kinase C is present in human sperm: possible role in flagellar motility.

Abstract:

:We report the presence of protein kinase C (PKC) in ejaculated human sperm as revealed by enzymatic activity assay and indirect immunohistochemistry. PKC is localized in the equatorial segment and in the principal piece of the tail. Addition of phorbol 12-myristate 13-acetate resulted in increased flagellar motility that was blocked by known PKC inhibitors such as sphingosine, staurosporine, and 1-(5-isoquinoylinylsulfonyl)-2-methylpiperazine. A very good correlation (r = 0.9, P less than 0.001) was found between the percentage of PKC-stained sperm cells and motility. We propose that PKC is involved in the regulation of flagellar motility in human sperm.

authors

Rotem R,Paz GF,Homonnai ZT,Kalina M,Naor Z

doi

10.1073/pnas.87.18.7305

subject

Has Abstract

pub_date

1990-09-01 00:00:00

pages

7305-8

issue

18

eissn

0027-8424

issn

1091-6490

journal_volume

87

pub_type

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