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Acrosomal Proteinase and Proteinase Inhibitor of Human Spermatozoa
Science, 1972The acrosomal proteinase of human spermatozoa was characterized and differs from other human proteinases. The enzyme has optimal activity at p H 8.0, is inactive below p H 5.0 or above p H 10.5, requires calcium for maximum activity, hydrolyzes fibrinogen, gelatin, and
L J, Zaneveld +2 more
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Collagenolytic proteinases in keratoconus
American Journal of Ophthalmology, 2006To study the proteolytic phenomena contributing to the pathogenesis of keratoconus, corneal enzymes with potential to cleave fibrillar collagen were studied.Immunohistochemical labeling was undertaken of conventional and novel mammalian collagenases (MMP-1, -2, -8, -13, and -14) of the matrix metalloproteinase (MMP) family and other collagenolytic ...
Zygmunt, Mackiewicz +5 more
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British Medical Bulletin, 1995
The primary agents responsible for cartilage and bone destruction in joint diseases are active proteinases degrading collagen and proteoglycan. All four main classes of proteolytic enzymes are involved in either the normal turnover of connective tissue or its pathological destruction.
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The primary agents responsible for cartilage and bone destruction in joint diseases are active proteinases degrading collagen and proteoglycan. All four main classes of proteolytic enzymes are involved in either the normal turnover of connective tissue or its pathological destruction.
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Journal of Histochemistry & Cytochemistry, 1981
Our interest in proteolytic enzymes derives from our work on the pathogenesis of multiple sclerosis (MS). In this disease of the central nervous system the myelin sheaths enveloping the axons disintegrate, usually in a patchy manner beginning around small veins or near the ventricles, resulting in lesions or “plaques.” The cause of MS is still unknown.
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Our interest in proteolytic enzymes derives from our work on the pathogenesis of multiple sclerosis (MS). In this disease of the central nervous system the myelin sheaths enveloping the axons disintegrate, usually in a patchy manner beginning around small veins or near the ventricles, resulting in lesions or “plaques.” The cause of MS is still unknown.
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Proteinase Inhibitors and Proteinases of Human Semen
1974During the First International Research Conference on Proteinase Inhibitors, a survey was presented concerning the proteinases of spermatozoa and seminal plasma as was known until that time [1, 2]. In summary, a proteinase from rabbit spermatozoa was purified and characterized, and shown to differ from other known pro-teolytic enzymes. It was given the
L. J. D. Zaneveld +3 more
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The involvement of extracellular proteinases and proteinase inhibitors in mammalian fertilization
Biotechnology and Applied Biochemistry, 1994Extracellular proteinases and proteinase inhibitors have been known to play many important roles in various biological systems. They are also important for reproductive functions of the mammals. Kallikrein stimulates human sperm motility. Porcine antithrombin III (AT III) has been identified to be a sperm-motility-stimulating protein and a ...
S L, Lee, Y H, Wei
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Proteinases and proteinase inhibitors as modulators of animal cell growth
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 19921. Three distinct lines of evidence indicate that proteinases are involved in the growth of cultured animal cells. 2. Endogenous growth-related proteinases have been identified, and exogenous proteinases can also stimulate cell proliferation, probably by different mechanisms. In some cases, higher concentrations of proteinases are cytotoxic.
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