osteoblasts

Necrostatin-7 (Necrostatin 7) is an inhibitor of necrotic apoptosis with cardioprotective effects, inhibits RANK-NFATc1 signaling, and attenuates macrophage differentiation into osteoblasts.

N-Oleoyl-L-Serine (N-Oleoylserine) is an endogenous long-chain fatty acid amide that is a lipid modulator of bone remodeling and stimulates osteoclast apoptosis which can be used to study osteoporosis. N-Oleoyl-L-Serine showed high activity in an osteoblast proliferation assay.N-Oleoyl-L-Serine promotes osteoclast apoptosis by inhibiting Erk1 2 phosphorylation and expression of nuclear κB ligand (RANKL) receptor activator in bone marrow stromal cells and osteoblasts, which attenuates osteoclast populations.

Sodium etidronate (Didronel) is a synthetic therapeutic diphosphonate analog of endogenous pyrophosphate. As a member of the family of drugs known as bisphosphonates, Sodium etidronate differs from endogenous pyrophosphate in its resistance to enzymatic hydrolysis. This agent adsorbs to hydroxyapatite cells and reduces the number of osteoclasts, thereby inhibiting abnormal bone resorption. Etidronate may also directly stimulate bone formation by osteoblasts.

Strontium ranelate (S12911), a strontium (II) salt of the ranelic acid, is a medication for osteoporosis. Studies indicate it can also slow the course of osteoarthritis of the knee. The drug is unusual in that it both increases deposition of new bone by osteoblasts and reduces the resorption of bone by osteoclasts. It is therefore promoted as a dual action bone agent (DABA) indicated for use in the treatment of severe osteoporosis.

Epmedin C (Baohuoside-VI) was metabolized via desugarization, dehydrogenation, hydrogenation, dehydroxylation, hydroxylation, demethylation and glucuronidation pathways in vivo. It has potential activity against osteoporosis by stimulating osteoblasts.

Sciadopitysin may prevent the development of diabetic osteopathy, it exerts its therapeutic effects via upregulation of mitochondrial biogenesis.Sciadopitysin shows protective effects on antimycin A-induced toxicity in osteoblastic MC3T3-E1 cells, it may

1. Epimedin B (Epmedin B) has potential activity against osteoporosis by stimulating osteoblasts.

DIPQUO is an activator of bone marker alkaline phosphatase (ALP). DIPQUO promotes the differentiation of mouse and human osteoblasts by activating p38MAPK-β. The EC50 in C2C12 cells was 6.27 μM.

CXM102 is an activator of autophagy. This compound induces autophagy in aged BMSCs, rejuvenating them and promoting their preferential differentiation into osteoblasts. CXM102 enhances the nuclear translocation of transcription factor EB (TFEB) and the formation of osteoblasts. In middle-aged male mice, it stimulates bone anabolic metabolism, reduces marrow adipocytes, delays bone loss, lowers serum inflammation levels, reduces organ fibrosis, and extends lifespan.

Teriparatide acetate (Forteo) is a PHT agonist, with an IC50 of 2 nM in HEK293 cells.Teriparatide acetate is a recombinant form of parathyroid hormone. It is an effective anabolic (i.e., bone growing) agent used to treat some forms of osteoporosis. Intermittent use of Teriparatide acetate activates osteoblasts more than osteoclasts, which leads to an overall increase in bone.

Smoothened (Smo) receptor agonist

Glycitin (Glycitein 7-O-β-glucoside), a natural isoflavone isolated from legumes, promotes the proliferation of bone marrow stromal cells and osteoblasts while suppressing bone turnover.

Osteocalcin (1-49) is a non-collagenous peptide that is secreted by osteoblasts and odontoblasts and comprises 1-2% of the total protein in bone. Secretion of osteocalcin (1-49) is stimulated by 1,25-dihydroxy vitamin D and plasma levels increase in diseases that induce dysregulated bone turnover such as osteoporosis, Paget's disease, and primary hyperparathyroidism. Osteocalcin (1-49) is positively correlated with insulin sensitivity and negatively correlated with high blood glucose levels in women. In vitro, osteocalcin induces chemotaxis of MDA-MB-231 breast cancer cells, human peripheral blood monocytes, and rat osteosarcoma cells with osteoblast-like characteristics. It is also expressed by vascular smooth muscle cells (VSMCs) displaying an osteoblast-like phenotype and has been positively associated with calcification of aortic tissue and heart valves in humans.

The prostaglandin E receptor 4 (EP4) is one of four G protein-coupled receptors that mediate the actions of prostaglandin E2 . Binding of PGE2 to the EP4 receptor causes an increase in intracellular cyclic AMP, which plays important roles in bone formation and resorption, cancer, and atherosclerosis. KMN-80 is a substituted γ-lactam (pyrrolidinone) derivative of PGE1 that acts as a selective and potent agonist of EP4 with an IC50 value of 3 nM (IC50 = 1.4 μM for EP3 and > 10 μM for all other prostanoid receptors). In functional assays it has been shown to stimulate secreted alkaline phosphatase gene reporter activity in EP4-transfected HEK293 cells with an EC50 value of 0.19 nM, demonstrating >5,000 and 50,000-fold selectivity against EP2 and TP, respectively. KMN-80 can induce the differentiation of bone marrow stem cells from both young and aged rats into osteoblasts in vitro (EC50s = 20 and 153 nM, respectively) and exhibits favorable tolerability up to at least 10 μM, whereas the EP4 agonist L-902,688 is highly cytotoxic at similar concentrations in these cells. KMN-80 has been used to repair calvarial defects in an in vivo rat craniomaxillofacial reconstruction model (rate of reduction in defect size equivalent to BMP-2 treated rats) and to promote bone formation in a rat incisor tooth socket model.

Emodin-8-glucoside (Anthraglycoside B) functions to protect from focal cerebral injury induced by ischemia and reperfusion. Emodin-8-beta-D-glucoside directly stimulates cell proliferation and differentiation of osteoblasts.

Dentonin (AC-100) is a synthetic fragment derived from MEPE that enhances osteogenesis by promoting osteoprogenitor adhesion and facilitating the survival of immature adherent cells, without significantly affecting mature osteoblasts. Dentonin is valuable for research on phosphate homeostasis and bone metabolism.

1. Curculigoside (Curculigoside A) can prevent bone loss , improve osteogenesis and inhibit osteoclastogenesis of hAFSCs, suggesting its potential use to regulate hAFSC osteogenic differentiation for treating bone disorders. 2. Curculigoside can promote calcium deposition and increase the levels of ALP and Runx2 in osteoblasts under oxidative stress via anti-oxidative character. 3. Curculigoside possesses potent antioxidant properties against oxidative stress insults. can protect endothelial cells against oxidative injury induced by H2O2, suggesting that this compound may constitute a promising intervention against cardiovascular disorders.

1. Sweroside possesses strong hepatoprotective effect. 2. Sweroside is a promising osteoporosis therapeutic natural product, has anti-osteoporotic effect on the human MG-63 cells and rat osteoblasts.

Actein has a stimulatory effect on osteoblastic bone formation or has potential activity against osteoporosis, it also can prevent oxidative damage to osteoblasts in osteoporotic patients. Actein's ability to pathways involved in lipid disorders and carci

VnP-16 enhances bone formation by stimulating the differentiation and activity of osteoblasts via direct β1 integrin engagement, which subsequently activates FAK [1].

ATP-γ-S tetrasodium (Adenosine-5'-O-(3-thiotriphosphate) tetrasodium) is a purinergic P2Y11 receptor agonist and ATP analog that induces inositol phosphate accumulation, induces insulin secretion from MIN6 pancreatic islet β-cells, and induces an increase in intracellular calcium concentration. ATP-γ-S tetrasodium inhibits the induction of the Junin virus. Junin virus-induced increase in the level of mRNA encoding bone morphogenetic protein 6 (BMP6) reduces particle-forming units (PFUs) in Junin virus-infected primary rat osteoblasts.

Wnt β-catenin agonist 3 is a Wnt beta-catenin agonist.

Gossypetin, a hexahydroxylated flavonoid extractable from Rhodiola rosea Linn. is a potent MKK3 and MKK6 inhibitor that strongly attenuates the MKK3 6-p38 signaling pathway.Gossypetin exhibits antimutagenic, antiatherosclerotic, antioxidant, as well as cytoprotective and antimicrobial effects.It inhibits bone resorption by downregulating lysosomal caspase K activity and inducing autophagy-associated proteins in actin ring osteoclasts. Gossypetin has anti-mutagenic, anti-atherosclerotic, anti-oxidant, cytoprotective and antibacterial effects, and it inhibits bone resorption by down-regulating lysosomal caspase K activity and by inducing autophagy-associated protein in actin ring osteoblasts.

Bullatantriol has a stimulative effect on significantly proliferation and differentiation of culture osteoblasts. It may have weak antibacterial activities.