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Table 1 Factors affecting the expression and regulation of osteopontin

From: Role of osteopontin in bone remodeling and orthodontic tooth movement: a review

Expression and upregulation of OPN

Downregulation of OPN

Transcription factors—Runx2 and Osterix [68]

cGMP-dependent protein kinase [2]

Inorganic phosphate [69]

Bisphosphonates [2]

Systematic conditions—hypophosphatemia, hypocalcemia [2]

Hormones—glucocorticoids, [70]

1,25-dihydroxyvitamin D3, [70] parathyroid hormone [14]

ERK inhibitor

Vitamins—retinoic acid [70]

 

Inflammatory mediators—TNFα, IL-1β, TGFβ [14]

 

Mechanical stress

Â