INT49238
From wiki-pain
|
|
|
|
|
Sentences Mentioned In
Key: | Protein | Mutation | Event | Anatomy | Negation | Speculation | Pain term | Disease term |
New methods for the measurement of bone resorption, such as the degradation product of type I collagen (ICTP), may improve the possibility of monitoring the effect of clodronate. | |||||||||||||||
| |||||||||||||||
|
As shown in Tables 6 and 7, the 17-peptide biomarkers were found to be degradation products of eight different proteins: alpha1 antitrypsin (A1AT, two peptides having overlapping sequences), collagen type I alpha 1 (COL1A1; five peptides and three of them having overlapping sequences), collagen type I alpha 2 (COL1A2; one peptide), collagen type III alpha 1 (COL3A1; one peptide), collagen type IX alpha 2 (COL9A2; one peptide), fibrinogen alpha (FGA; two peptides having overlapping sequences), fibrinogen beta (FGB; two peptides having overlapping sequences), and uromodulin (UMOD; three peptides having overlapping sequences). | |||||||||||||||
| |||||||||||||||
|
As shown in Tables 6 and 7, the 17-peptide biomarkers were found to be degradation products of eight different proteins: alpha1 antitrypsin (A1AT, two peptides having overlapping sequences), collagen type I alpha 1 (COL1A1; five peptides and three of them having overlapping sequences), collagen type I alpha 2 (COL1A2; one peptide), collagen type III alpha 1 (COL3A1; one peptide), collagen type IX alpha 2 (COL9A2; one peptide), fibrinogen alpha (FGA; two peptides having overlapping sequences), fibrinogen beta (FGB; two peptides having overlapping sequences), and uromodulin (UMOD; three peptides having overlapping sequences). | |||||||||||||||
| |||||||||||||||
|
Dental amalgam conditioned buffer also inhibited the degradation of denatured type I collagen by purified MMP-2 on liquid phase assays. | |||||||||||||||
| |||||||||||||||
|
Another assay specific for fragments of the collagen type I C-telopeptide, ICTP, results primary from nonosteoclastic matrix-metalloproteinase-mediated degradation of type I collagen [34]. | |||||||||||||||
| |||||||||||||||
|
The ability of the cancer cells to degrade the type I collagen is consistent with the expression of proteolytic activity. | |||||||||||||||
| |||||||||||||||
|
Collagenase activity was measured by the degradation of fluorescein isothiocyanate (FITC)-labelled type I collagen using type I activity assay kits. | |||||||||||||||
| |||||||||||||||
|
(10-10M) and cultured in the presence of 10% FCS the cancer cells induced significant degradation of type I collagen (range 7080%), whereas minimal degradation was observed in the absence of serum (Fig. 1). | |||||||||||||||
| |||||||||||||||
|
Type I collagen degradation | |||||||||||||||
| |||||||||||||||
|
The remaining matrix was degraded as for the type I collagen assay and matrix degradation expressed as above.
| |||||||||||||||
| |||||||||||||||
|
Hence to determine whether breast cancer cell mediated degradation of type I collagen could be extended to a more physiological system, cancer cells were cultured on bone matrix as described below.
| |||||||||||||||
| |||||||||||||||
|
Breast cancer cells (105 /16 mm culture well) were seeded onto the bone matrix as for the type I collagen degradation assay. | |||||||||||||||
| |||||||||||||||
|
The type I collagen degradation marker ICTP (C-terminal telopeptide of type I collagen) and the cartilage markers CTX-II (C-terminal telopeptide fragments of type II collagen) and cartilage oligomeric matrix protein (COMP) were associated with the Larsen score at baseline. | |||||||||||||||
| |||||||||||||||
|
Type I collagen degradation assay | |||||||||||||||
| |||||||||||||||
|
Increased degradation of type I collagen in acne fulminans. | |||||||||||||||
| |||||||||||||||
|
In the present study the degradation product (ICTP) of type I collagen, the most abundant collagen of the skeleton, was measured from the sera of patients suffering from acne fulminans. | |||||||||||||||
| |||||||||||||||
|
The resorbing process can be investigated using a specific immunoassay for ICTP (cross-linked carboxyterminal telopeptide region of type I collagen) which allows the measurement of the degradation of type I collagen in serum samples. | |||||||||||||||
| |||||||||||||||
|
The resorbing process can be investigated using a specific immunoassay for ICTP (cross-linked carboxyterminal telopeptide region of type I collagen) which allows the measurement of the degradation of type I collagen in serum samples. | |||||||||||||||
| |||||||||||||||
|
Serum samples were analysed at baseline, 3 and 12 months for procollagen type I N-terminal propeptide (P1NP), a marker of bone formation, and the C-telopeptide crosslaps of type I collagen (CTX-1) and C-terminal telopeptide of type I collagen (1CTP), markers of bone degradation. | |||||||||||||||
| |||||||||||||||
|
Serum samples were analysed at baseline, 3 and 12 months for procollagen type I N-terminal propeptide (P1NP), a marker of bone formation, and the C-telopeptide crosslaps of type I collagen (CTX-1) and C-terminal telopeptide of type I collagen (1CTP), markers of bone degradation. | |||||||||||||||
| |||||||||||||||
|
General Comments
This test has worked.