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Sökning: WFRF:(Kasprzykowska R) > (2000-2004) > A peptidyl derivati...
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 04408naa a2200373 4500 | |
| 001 | oai:lup.lub.lu.se:8b5ad791-2f70-4841-9563-7e9b87b76f1a | |
| 003 | SwePub | |
| 008 | 160404s2000 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://lup.lub.lu.se/record/11183472 URI |
| 024 | 7 | a https://doi.org/10.1016/S8756-3282(00)00261-12 DOI |
| 040 | a (SwePub)lu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Johansson, L4 aut |
| 245 | 1 0 | a A peptidyl derivative structurally based on the inhibitory center of cystatin C inhibits bone resorption in vitro |
| 264 | 1 | c 2000 |
| 520 | a Human cystatin C is a cysteine proteinase inhibitor belonging to the cystatin superfamily, which previously has been shown to inhibit bone resorption in bone organ culture. The aminoterminal segment, Arg8-Leu9-Val10-Gly11 (RLVG), of the single polypeptide chain of cystatin C constitutes an essential part of its inhibitory center. In the present study, the effect of benzyloxycarbonyl-Arg8-Leu9-Val10-Gly11-diazomethane (Z-RLVG-CHN2) on bone resorption in vitro was compared with the effects of cystatin C and calcitonin. Bone resorption was assessed by the release of 45Ca and 3H from mouse calvarial bones prelabeled with [45Ca]CaCl2 and [3H]-proline, respectively. Z-RLVG-CHN2 concentration-dependently inhibited the release of 45Ca and 3H in bones stimulated by parathyroid hormone (PTH), with half-maximal inhibition obtained at 1 μmol/L. The inhibitory actions of Z-RLVG-CHN2 and cystatin C were persistent, whereas action induced initially by calcitonin was lost with time. The inhibition caused by Z-RLVG-CHN2 and cystatin C on PTH-stimulated 45Ca release was observed after 6 h, whereas inhibition by calcitonin was seen already after 2 h. In contrast, the inhibitory effects of Z-RLVG-CHN2 and cystatin C, as well as that of calcitonin, on 3H release was seen already after 2 h. Z-RLVG-CHN2, in which the reactive carboxyterminal diazomethane was substituted by nonreactive groups [−OH, −NH2, or −N(CH3)2], resulted in peptidyl derivatives, which, in contrast to Z-RLVG-CHN2 and cystatin C, inhibited neither cysteine proteinases nor bone resorption. In contrast to wild-type cystatin C, recombinant human cystatin C with Gly substitutions for residues Arg8, Leu9, Val10, and Trp106, and with low or nonexistent affinity for cysteine proteinases, did not display any inhibitory effect on bone resorption. These data strongly indicate that Z-RLVG-CHN2 inhibits bone resorption in vitro by a mechanism that seems primarily to be due to an inhibition of bone matrix degradation via cysteine proteinases. The data also corroborate the hypothesis that cystatin C inhibits bone resorption by virtue of its cysteine proteinase inhibitory capacity. | |
| 650 | 7 | a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Läkemedelskemi0 (SwePub)301032 hsv//swe |
| 650 | 7 | a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Medicinal Chemistry0 (SwePub)301032 hsv//eng |
| 650 | 7 | a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Farmakologi och toxikologi0 (SwePub)301022 hsv//swe |
| 650 | 7 | a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Pharmacology and Toxicology0 (SwePub)301022 hsv//eng |
| 700 | 1 | a Grubb, Andersu Lund University,Lunds universitet,Avdelningen för klinisk kemi och farmakologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Chemistry and Pharmacology,Department of Laboratory Medicine,Faculty of Medicine4 aut0 (Swepub:lu)kkem-agr |
| 700 | 1 | a Abrahamson, Magnusu Lund University,Lunds universitet,Avdelningen för klinisk kemi och farmakologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Chemistry and Pharmacology,Department of Laboratory Medicine,Faculty of Medicine4 aut0 (Swepub:lu)kkem-mab |
| 700 | 1 | a Kasprzykowski, F4 aut |
| 700 | 1 | a Kasprzykowska, R4 aut |
| 700 | 1 | a Grzonka, Z4 aut |
| 700 | 1 | a Lerner, UH4 aut |
| 710 | 2 | a Avdelningen för klinisk kemi och farmakologib Institutionen för laboratoriemedicin4 org |
| 773 | 0 | t Boneg 26:5, s. 451-459q 26:5<451-459x 1873-2763 |
| 856 | 4 | u http://dx.doi.org/10.1016/S8756-3282(00)00261-1y FULLTEXT |
| 856 | 4 8 | u https://lup.lub.lu.se/record/1118347 |
| 856 | 4 8 | u https://doi.org/10.1016/S8756-3282(00)00261-1 |
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