Intra-assay Precision (Precision within an assay): CV%<8%
Three samples of known concentration were tested twenty times on one plate to assess.
Inter-assay Precision (Precision between assays): CV%<10%
Three samples of known concentration were tested in twenty assays to assess.
線性度:
To assess the linearity of the assay, samples were spiked with high concentrations of human DMP1 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
Sample
Serum(n=4)
1:1
Average %
88
Range %
81-91
1:2
Average %
102
Range %
98-105
1:4
Average %
105
Range %
98-108
1:8
Average %
96
Range %
92-98
回收率:
The recovery of human DMP1 spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
Sample Type
Average % Recovery
Range
Serum (n=5)
93
89-95
EDTA plasma (n=4)
96
92-98
標準曲線:
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
May have a dual function during osteoblast differentiation. In the nucleus of undifferentiated osteoblasts, unphosphorylated form acts as a transcriptional component for activation of osteoblast-specific genes like osteocalcin. During the osteoblast to osteocyte transition phase it is phosphorylated and exported into the extracellular matrix, where it regulates nucleation of hydroxyapatite.
基因功能參考文獻:
dentin matrix protein 1 was detected in the periodontal ligament co-localized with periostin in the vicinity of the cement PMID: 29289709
The Dentin matrix protein1 (Dmp1) is an acidic phosphoprotein of osteocytes proposed to participate in bone and dentin mineralization. PMID: 28247029
Thus, unspDMP-1 is a novel chromatin-enriched RNA that epigenetically regulates cellular proliferation of SQCC. PMID: 29278708
DMP1 might be a potential factor contributing to cardiovascular complications in dialysis patients. PMID: 27390906
DMP1 gene seems to be involved in genetic predisposition to Ankylosing spondylitis (AS). PMID: 26960368
DMP-1 immunostaining was higher for MTA and PC, confirming the reparative and bioinductive capacity of these materials. PMID: 25678029
This review will focus on the aberrant splicing of tumor suppressor/oncogenes that belong to the DMP1-ARF-MDM2-p53 pathway PMID: 26802432
Expressions of dentin matrix protein (DMP)-1 and osteopontin (OPN) were observed in both normal dentin and dentin from DGI-I affected patients, without significant differences PMID: 25578972
identify alternative splicing as a mechanism utilized by cancer cells to modulate the DMP1 locus through diminishing DMP1alpha tumour suppressor expression PMID: 25537728
The findings indicate that DMP-1 is a useful marker of osteogenic differentiation and mineralisation in soft tissue tumours PMID: 25630512
A family of autosomal recessive form of Hypophosphatemic rickets secondary to a DMP1 mutation located in the first coding exon of the gene, is reported. PMID: 25180662
Results suggest that FAM20C suppresses FGF23 production by enhancing DMP1 expression, and inactivating mutations in FAM20C cause FGF23-related hypophosphatemia by decreasing transcription of DMP1. PMID: 25026495
DMP1 may play an important role in maintaining the chondrogenic phenotype and its possible involvement in altered cartilage matrix remodelling and degradation in disease conditions like osteoarthritis. PMID: 24987156
DMP1 and DSPP were more abundant in carious than in sound samples. PMID: 24441185
DMP-1 is a matrix marker expressed around osteocytes in human woven and lamellar bone and is useful in identifying osteosarcoma and other bone-forming tumours. PMID: 23559304
Mutations in PHEX and DMP1 play a role in causing hypophosphatemic rickets. PMID: 22695891
DMP1 is regulated post-transcriptionally by let-7 during odontoblast differentiation. PMID: 22552299
DMP-1 stimulated production of IL-6/IL-8 from pulp fibroblasts. Inhibition of p38 mitogen-activated protein kinase pathway blocked proinflammatory effect on pulp fibroblasts. DMP-1 might participate in development of inflammatory changes in pulp. PMID: 22152625
Simvastatin plus all-trans retinoic acid reduces expression of WT1 and DMP1 in the promyelocytic leukemia cell line NB4. PMID: 22093791
DMP1 is specifically involved in signaling via extracellular matrix-cell surface interaction. PMID: 21642437
Data show the wide spectrum of genetic variation that can be seen in PHEX, FGF23 and DMP1 when screening a large cohort with hypophosphatemic rickets. PMID: 21050253
after VE-cadherin induction by DMP1, DMP1 inhibited VEGFR-2 phosphorylation and Src-mediated signaling; DMP1 is identified as a new specific inhibitor of VEGF-induced angiogenesis PMID: 21190990
possible role of dentine matrix protein 1 in the aetiology of [aggressive periodontitis] PMID: 21299946
clinical and laboratory observations in this family confirm that DMP1 has an important role in normal skeletal development and mineral homeostasis PMID: 20499351
Study shows the pivotal roles of Dmp1 in HER2/neu-p53 signaling and breast carcinogenesis. PMID: 21062982
study describes a Japanese family that includes 2 autosomal recessive hypophosphatemic rickets-affected siblings carrying a novel mutation of the DMP1 gene (98G>A, W33X), which leads to a truncated DMP protein with no putative biological function PMID: 20213538
The identified genetic mutation underscores the importance of DMP-1 mutations in the pathogenesis of autosomal recessive form of hypophosphatemia. PMID: 19796717
The patterns of expression of FGF-23, MEPE, and DMP1 differ markedly in trabecular bone, suggesting that individual osteocytes may have specialized functions. PMID: 19679205
DMP1 immunostaining intensity and extent scores were significantly higher in adenocarcinoma (p = 0.0004) and squamous carcinoma (p < 0.0001) samples compared with adjacent normal lung tissue PMID: 12929940
dentin matrix protein-1 is processed by Bone morphogenetic protein-1/Tolloid-like proteinases PMID: 14578349
Findings indicate that DMP1 immunohistochemistry is a useful tool for identifying phosphaturic mesenchymal tumors (PMTs). PMID: 15001995
a silencing cis-element may play a critical role in the regulation of DMP1 cell-specific expression PMID: 15108359
8-kb region of the Dentin matrix protein 1 (DMP1) gene is a target for mechanotransduction in osteocytes, and its cis-regulatory activity may be correlated to local strain in bone PMID: 15728181
Dentin matrix protein 1 enhances invasion potential of colon cancer cells by bridging matrix metalloproteinase-9 to integrins and CD44 PMID: 16357164
analysis of a chondroitin sulfate chain attached to the bone dentin matrix protein 1 NH2-terminal fragment PMID: 16421105
DMP1 regulates the expression of the DSPP gene PMID: 16679514
Absence of DMP1 results in defective osteocyte maturation and increased FGF23 expression, leading to pathological changes in bone mineralization. PMID: 17033621
DMP1 has a role in breast cancer progression and bone metastases development PMID: 17136477
Thus, our results suggest that Cbfalpha1 upregulates DMP1 gene expression differentially that may contribute to the spatial-temporal expression pattern of DMP1 during odontoblast differentiation. PMID: 17434448
Discussion of DMP1 role in the maturation of odontoblasts and osteoblasts as well as in mineralization; identification of DMP1 mutations in autosomal-recessive hypophosphatemic rickets; and regulation of phosphate homeostasis through FGF23 [review]. PMID: 18037646
mRNA of DMP1 involved in the pathogenesis of hypophosphataemic rickets is highly expressed in cells of the osteoblasts/osteocyte lineage. PMID: 18214537
inactivating mutations in DMP1 increase, through yet unknown mechanisms, FGF23 synthesis and thus enhance renal phosphate excretion--REVIEW PMID: 18660670
binding of DMP1 with GRP-78 receptor might be an important mechanism by which DMP1 is internalized and transported to the nucleus during bone and tooth development PMID: 18757373
A novel DMP1 deletion is identified as the cause of autosomal recessive hypophosphatemic rickets, as well as demonstrated that the ARHR mutations alter DMP1 cellular processing, and that DMP1 can be regulated by vitamin D. PMID: 19007919
Deletion of mouse Dmp1 results in bone hypomineralization. PMID: 16294270
DMP1 is expressed in salivary gland ducts. PMID: 15329369
DMP1 is expressed in parietal cells of Bowman's capsule and throughout the ductal system of nephrons. PMID: 15954904
Nucleus. Cytoplasm. Secreted, extracellular space, extracellular matrix. Note=In proliferating preosteoblasts it is nuclear, during early maturation stage is cytoplasmic and in mature osteoblast localizes in the mineralized matrix. Export from the nucleus of differentiating osteoblast is triggered by the release of calcium from intracellular stores followed by a massive influx of this pool of calcium into the nucleus.
組織特異性:
Expressed in tooth particularly in odontoblast, ameloblast and cementoblast.