HUANG Shi-yi,ZHOU Guang-wen,ZHU Wei,et al.Effect of Bushen Huatan Prescription on Serum LPS and TLR4/MyD88/NF-κB Signaling Pathway in Rats with Ovariectomy-induced Osteoporosis[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(09):70-76.
HUANG Shi-yi,ZHOU Guang-wen,ZHU Wei,et al.Effect of Bushen Huatan Prescription on Serum LPS and TLR4/MyD88/NF-κB Signaling Pathway in Rats with Ovariectomy-induced Osteoporosis[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(09):70-76. DOI: 10.13422/j.cnki.syfjx.20210990.
Effect of Bushen Huatan Prescription on Serum LPS and TLR4/MyD88/NF-κB Signaling Pathway in Rats with Ovariectomy-induced Osteoporosis
To explore the effect of Bushen Huatan prescription on serum lipopolysaccharide (LPS) and Toll-like receptor 4 (TLR4)/ myeloid cell differentiation protein 88 (MyD88)/nuclear transcription factor-
κ
B (NF-
κ
B) signaling pathway in rats with ovariectomy-induced osteoporosis.
Method
2
Sixty SPF 6-month-old female rats were randomly divided into sham operation group, model group, estradiol valerate group and Bushen Huatan prescription low, medium and high dose groups.One week after modeling by bilateral ovariectomy, 8 rats in each group were selected to receive intragastric administration.The estradiol valerate group was given 0.184 mg·kg
-1
by gavage, and Bushen Huatan prescription low, middle and high dose groups were given 4.7, 9.4 and 18.8 g·kg
-1
by gavage, sham operation group and model group were given 0.9% saline 4 mL by gavage respectively.After 12 weeks of intervention, the rats were sacrificed for detection.Serum LPS was detected by enzyme linked immunosorbent assay (ELISA), while protein expressions of TLR4, MyD88 and phosphorylated (p)-NF-
κ
B p65 in bone tissue were detected by Western blot, and the mRNA expressions of TLR4, MyD88, NF-
κ
B p65, IL-1
β
, and IL-6 in bone tissue were detected by quantitative real-time polymerase chain reaction(PCR).
Result
2
Compared with sham operation group, the serum LPS level as well as protein expression of TLR4, MyD88, p-NF-
κ
B p65 and mRNA expression of TLR4, MyD88, NF-
κ
B p65, IL-1
β
, and IL-6 significantly increased in model group(
P
<
0.05).Compared with the model group, serum LPS level, protein expression of TLR4, MyD88, and p-NF-
κ
B p65, mRNA levels of TLR4, MyD88, and NF-
κ
B p65 in bone tissues as well as downstream inflammatory factors IL-1
β
, IL-6 mRNA expression decreased to different degrees in estradiol valerate group and Bushen Huatan prescription high dose group(
P
<
0.05).
Conclusion
2
Bushen Huatan prescription can reduce serum LPS content, regulate mRNA and protein expression of TLR4, MyD88, NF-
κ
B p65 and p-NF-
κ
B p65 in TLR4/MyD88/NF-
κ
B pathway, and down-regulate mRNA levels of IL-1
β
and IL-6 in bone tissues to improve bone microstructure and inhibit the development of postmenopausal osteoporosis (PMOP).
关键词
Keywords
references
BLACK D M , ROSEN C J . Postmenopausal osteoporosis [J]. N Engl J Med , 2016 , 374 ( 21 ): 2096 - 2097 .
PIETSCHMANN P , MECHTCHERIAKOVA D , MESHCHERYAKOVA A , et al . Immunology of osteoporosis:a mini-review [J]. Gerontology , 2016 , 62 ( 2 ): 128 - 137 .
WEITZMANN M N . Bone and the immune system [J]. Toxicol Pathol , 2017 , 45 ( 7 ): 911 - 924 .
OHLSSON C , SJÖGREN K . Effects of the gut microbiota on bone mass [J]. Trends Endocrinol Metab , 2015 , 26 ( 2 ): 69 - 74 .
TAO X , QI Y , XU L , et al . Dioscin reduces ovariectomy-induced bone loss by enhancing osteoblastogenesis and inhibiting osteoclastogenesis [J]. Pharmacol Res , 2016 , 108 : 90 - 101 .
VIJAYAN V , KHANDELWAL M , MANGLANI K , et al . Methionine down-regulates TLR4/MyD88/NF- κ B signalling in osteoclast precursors to reduce bone loss during osteoporosis [J]. Br J Pharmacol , 2014 , 171 ( 1 ): 107 - 121 .
JILKA R L , HANGOC G , GIRASOLE G , et al . Increased osteoclast development after estrogen loss:mediation by interleukin-6 [J]. Science , 1992 , 257 ( 5066 ): 88 - 91 .
VAN BEZOOIJEN R L , FARIH-SIPS H C , PAPAPOULOS S E , et al . IL-1alpha,IL-1beta,IL-6,and TNF-alpha steady-state mRNA levels analyzed by reverse transcription-competitive pcr in bone marrow of gonadectomized mice [J]. J Bone Miner Res , 1998 , 13 ( 2 ): 185 - 194 .
WALSH M C , TAKEGAHARA N , KIM H , et al . Updating osteoimmunology:regulation of bone cells by innate and adaptive immunity [J]. Nat Rev Rheumatol , 2018 , 14 ( 3 ): 146 - 156 .
LI J Y , CHASSAING B , TYAGI A M , et al . Sex steroid deficiency-associated bone loss is microbiota dependent and prevented by probiotics [J]. J Clin Invest , 2016 , 126 ( 6 ): 2049 - 2063 .
LU Y C , YEH W C , OHASHI P S . LPS/TLR4 signal transduction pathway [J]. Cytokine , 2008 , 42 ( 2 ): 145 - 151 .
ZHENG J , FAN R , WU H , et al . Directed self-assembly of herbal small molecules into sustained release hydrogels for treating neural inflammation [J]. Nat Commun , 2019 , 10 ( 1 ): 1604 .
PŁÓCIENNIKOWSKA A , HROMADA-JUDYCKA A , BORZĘCKA K , et al . Co-operation of TLR4 and raft proteins in LPS-induced pro-inflammatory signaling [J]. Cell Mol Life Sci , 2015 , 72 ( 3 ): 557 - 581 .
JIA X , JIA L , MO L , et al . Berberine ameliorates periodontal bone loss by regulating gut microbiota [J]. J Dent Res , 2019 , 98 ( 1 ): 107 - 116 .
CHARLES J F , NAKAMURA M C . Bone and the innate immune system [J]. Curr Osteoporos Rep , 2014 , 12 ( 1 ): 1 - 8 .
YANG D H , YANG M Y . The role of macrophage in the pathogenesis of osteoporosis [J]. Int J Mol Sci , 2019 , 20 ( 9 ): 2093 .
ZHAO R . Immune regulation of osteoclast function in postmenopausal osteoporosis:a critical interdisciplinary perspective [J]. Int J Med Sci , 2012 , 9 ( 9 ): 825 - 832 .
PASARE C , MEDZHITOV R . Toll pathway-dependent blockade of CD4 + CD25 + T cell-mediated suppression by dendritic cells [J]. Science , 2003 , 299 ( 5609 ): 1033 - 1036 .
PHILLIPS F C , GURUNG P , KANNEGANTI T D . Microbiota and caspase-1/caspase-8 regulate IL-1 β -mediated bone disease [J]. Gut Microbes , 2016 , 7 ( 4 ): 334 - 341 .
HARMER D , FALANK C , REAGAN M R . Interleukin-6 Interweaves the bone marrow microenvironment,bone loss,and multiple myeloma [J]. Front Endocrinol (Lausanne) , 2018 , 9 : 788 .
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