Bezafibrate prevents palmitate-induced apoptosis in osteoblastic MC3T3-E1 cells through the NF-κB signaling pathway

Zhong, Xing; Xiu, Lingling; Wei, Guohong; Pan, Tianrong; Liu, Yuanyuan; Su, Lei; Li, Yanbing; Xiao, Haipeng

doi:10.3892/ijmm.2011.722

Cited by 10 publications

(4 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, it was found that gossypol treatments decreased osteoblast cell viability. The inhibition of cell apoptosis by gossypol was mainly executed through activation of caspase-3 and caspase-9, two critical executors of intrinsic apoptotic caspases [21, 22]. Hence, gossypol promoted bone formation mainly through inhibiting osteoblast cell apoptosis.…”

Section: Discussionmentioning

confidence: 99%

Gossypol Promotes Bone Formation in Ovariectomy-Induced Osteoporosis through Regulating Cell Apoptosis

Liang

Chen

Liu

et al. 2018

BioMed Research International

View full text Add to dashboard Cite

Osteoporosis is among the most common forms of age-related diseases, especially for females, which has been a grave public health problem. Drug therapies have shown promising outcomes to promote bone formation and bone density. This study identified a novel potential drug, gossypol, for the treatment of osteoporosis. Treatments of ovariectomy-induced osteoporosis mice with gossypol significantly increased serum osteocalcin and osteoprotegerin (OPG) levels; meanwhile they decreased serum RANKL levels. Microcomputed tomography (microCT) analysis showed that treatment of gossypol improved bone density and strength and decreased bone postyield displacement for both medullar and cortical bones. In vitro experiments also showed that gossypol increased cell viability in a time- and dose-dependent manner. Furthermore, incubation of the osteoblast MC3T3-E1 cells with gossypol inhibited cell apoptosis through intrinsic apoptotic pathway as evidenced by the Annexin V/PI assay, TUNEL assay, biochemical analysis, and western blot assays. Moreover, the classical Wnt/β-catenin signaling pathway was found to be regulated by gossypol treatments. Inhibition of Wnt/β-catenin signaling reversed the prevention effects of gossypol in osteoporosis. Our findings provided novel clues for the treatment of osteoporosis in clinic.

show abstract

Section: Discussionmentioning

confidence: 99%

Gossypol Promotes Bone Formation in Ovariectomy-Induced Osteoporosis through Regulating Cell Apoptosis

Liang

Chen

Liu

et al. 2018

BioMed Research International

View full text Add to dashboard Cite

show abstract

“…Rodent studies indicate that SFAs increase bone resorption by elevating the expression of inflammatory cytokines and the receptor activator of NF-κβ ligand [33]. SFA mediates osteoclastogenesis and may decrease osteoclast apoptosis [29]. Additionally, SFAs interfere with osteoblastogenesis and bone formation [34].…”

Section: Discussionmentioning

confidence: 99%

High fat diet enriched with saturated, but not monounsaturated fatty acids adversely affects femur, and both diets increase calcium absorption in older female mice

et al. 2016

View full text Add to dashboard Cite

Diet induced obesity has been shown to reduce bone mineral density (BMD) and Ca absorption. However, previous experiments have not examined the effect of high fat diet (HFD) in the absence of obesity or addressed the type of dietary fatty acids. The primary objective of this study was to determine the effects of different types of high fat feeding, without obesity, on fractional calcium absorption (FCA) and bone health. It was hypothesized that dietary fat would increase FCA and reduce BMD. Mature 8-month-old female C57BL/6J mice were fed one of three diets: a HFD (45% fat) enriched either with monounsaturated fatty acids (MUFAs) or with saturated fatty acids (SFAs), and a normal fat diet (NFD; 10% fat). Food consumption was controlled to achieve a similar body weight gain in all groups. After 8wk, total body bone mineral content and BMD as well as femur total and cortical volumetric BMD were lower in SFA compared with NFD groups (P < 0.05). In contrast, femoral trabecular bone was not affected by the SFAs, whereas MUFAs increased trabecular volume fraction and thickness. The rise over time in FCA was greater in mice fed HFD than NFD and final FCA was higher with HFD (P < 0.05). Intestinal calbindin-D9k gene and hepatic cytochrome P450 2r1 protein levels were higher with the MUFA than the NFD diet (P < 0.05). In conclusion, HFDs elevated FCA overtime; however, an adverse effect of HFD on bone was only observed in the SFA group, while MUFAs show neutral or beneficial effects.

show abstract

“…Also, a high fat diet rich in SFA also impairs lipid metabolism that may indirectly prevent osteoclast senescence and apoptosis [158–160]. Moreover, SFA mediates osteoclastogenesis and bone resorption possibly by increasing cellular oxidative stress [160,161] and the activity of inflammatory cytokines (IL1β, IL-6, TNFα) [162,163], all of which would have a negative effect on bone. Combined, these cellular and observational studies indicate that high fat feeding using different fatty acids may contribute to differential effects on bone health.…”

Section: Dietary Energy and Fat On Bone In Preclinical Studiesmentioning

confidence: 99%

Obesity is a concern for bone health with aging

2017

View full text Add to dashboard Cite

Accumulating evidence supports a complex relationship between adiposity and osteoporosis in overweight/obese individuals, with local interactions and endocrine regulation by adipose tissue on bone metabolism and fracture risk in elderly populations. This review was conducted to summarize existing evidence to test the hypothesis that obesity is a risk factor for bone health in aging individuals. Mechanisms by which obesity adversely affects bone health are believed to be multiple, such as an alteration of bone-regulating hormones, inflammation, oxidative stress, the endocannabinoid system, that affect bone cell metabolism are discussed. In addition, evidence on the effect of fat mass and distribution on bone mass and quality is reviewed together with findings relating energy and fat intake with bone health. In summary, studies indicate that the positive effects of body weight on bone mineral density cannot counteract the detrimental effects of obesity on bone quality. However, the exact mechanism underlying bone deterioration in the obese is not clear yet and further research is required to elucidate the effect of adipose depots on bone and fracture risk in the obese population.

show abstract

Bezafibrate prevents palmitate-induced apoptosis in osteoblastic MC3T3-E1 cells through the NF-κB signaling pathway

Cited by 10 publications

References 37 publications

Gossypol Promotes Bone Formation in Ovariectomy-Induced Osteoporosis through Regulating Cell Apoptosis

Gossypol Promotes Bone Formation in Ovariectomy-Induced Osteoporosis through Regulating Cell Apoptosis

High fat diet enriched with saturated, but not monounsaturated fatty acids adversely affects femur, and both diets increase calcium absorption in older female mice

Obesity is a concern for bone health with aging

Contact Info

Product

Resources

About