Phospho-p70 S6 Kinase (Thr389/Thr412) Antibody | Affinity Biosciences LTD|亲科生物官网

产品:	磷酸化 p70 S6 Kinase (Thr389/Thr412) 抗体
货号:	AF3228
描述:	Rabbit polyclonal antibody to Phospho-p70 S6 Kinase (Thr389/Thr412)
应用:	WB IHC IF/ICC
反应:	Human, Mouse, Rat, Pig
预测:	Pig, Bovine, Horse, Sheep, Rabbit, Dog, Chicken, Xenopus
分子量:	70kDa; 59kD(Calculated).
蛋白号:	P23443
RRID:	AB_2834654

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阻断肽(封闭肽)是特异性结合目标抗体和阻断抗体结合的多肽。这些多肽包含抗体识别的抗原表位。与阻断肽结合的抗体不再与靶蛋白上的表位结合。例如，在免疫印迹(WB)和免疫组化(IHC)中，通过比较被阻断抗体和未阻断抗体的染色，可以看到哪种染色是特异性的。

规格	价格	库存
50ul	RMB¥ 1300	现货
100ul	RMB¥ 2400	现货
200ul	RMB¥ 3200	现货

货期: 当天发货

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实验方案

产品描述

来源:

Rabbit

应用:

WB 1:500-1:2000, IHC 1:50-1:200, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.
*Tips:

WB: 适用于变性蛋白样本的免疫印迹检测. IHC: 适用于组织样本的石蜡(IHC-p)或冰冻(IHC-f)切片样本的免疫组化/荧光检测. IF/ICC: 适用于细胞样本的荧光检测. ELISA(peptide): 适用于抗原肽的ELISA检测.

反应:

Human,Mouse,Rat,Pig

预测:

Bovine(100%), Horse(100%), Sheep(100%), Rabbit(100%), Dog(100%), Chicken(100%), Xenopus(100%)

克隆:

Polyclonal

特异性:

Phospho-p70 S6 Kinase (Thr389/Thr412) Antibody detects endogenous levels of p70 S6 Kinase only when phosphorylated at Threonine 389/412.

RRID:

AB_2834654
引用格式: Affinity Biosciences Cat# AF3228, RRID:AB_2834654.

偶联:

Unconjugated.

纯化:

The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.

保存:

Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.

别名:

展开/折叠

70 kDa ribosomal protein S6 kinase 1; KS6B1_HUMAN; p70 alpha; P70 beta 1; p70 ribosomal S6 kinase alpha; p70 ribosomal S6 kinase beta 1; p70 S6 kinase alpha; P70 S6 Kinase; p70 S6 kinase, alpha 1; p70 S6 kinase, alpha 2; p70 S6K; p70 S6K-alpha; p70 S6KA; p70(S6K) alpha; p70(S6K)-alpha; p70-alpha; p70-S6K 1; p70-S6K; P70S6K; P70S6K1; p70S6Kb; PS6K; Ribosomal protein S6 kinase 70kDa polypeptide 1; Ribosomal protein S6 kinase beta 1; Ribosomal protein S6 kinase beta-1; Ribosomal protein S6 kinase I; RPS6KB1; S6K; S6K-beta-1; S6K1; Serine/threonine kinase 14 alpha; Serine/threonine-protein kinase 14A; STK14A;

抗原和靶标

免疫原:

Uniprot:

P23443(KS6B1_HUMAN) >>Visit HPA database.

基因/基因ID:

RPS6KB1(6198)

表达:

P23443 KS6B1_HUMAN:

Widely expressed.

描述:

This gene encodes a member of the RSK (ribosomal S6 kinase) family of serine/threonine kinases. This kinase contains 2 non-identical kinase catalytic domains and phosphorylates several residues of the S6 ribosomal protein.

序列:

P23443 KS6B1_HUMAN:
Protein BLAST With
NCBI/
ExPASy/
Uniprot

MRRRRRRDGFYPAPDFRDREAEDMAGVFDIDLDQPEDAGSEDELEEGGQLNESMDHGGVGPYELGMEHCEKFEISETSVNRGPEKIRPECFELLRVLGKGGYGKVFQVRKVTGANTGKIFAMKVLKKAMIVRNAKDTAHTKAERNILEEVKHPFIVDLIYAFQTGGKLYLILEYLSGGELFMQLEREGIFMEDTACFYLAEISMALGHLHQKGIIYRDLKPENIMLNHQGHVKLTDFGLCKESIHDGTVTHTFCGTIEYMAPEILMRSGHNRAVDWWSLGALMYDMLTGAPPFTGENRKKTIDKILKCKLNLPPYLTQEARDLLKKLLKRNAASRLGAGPGDAGEVQAHPFFRHINWEELLARKVEPPFKPLLQSEEDVSQFDSKFTRQTPVDSPDDSTLSESANQVFLGFTYVAPSVLESVKEKFSFEPKIRSPRRFIGSPRTPVSPVKFSPGDFWGRGASASTANPQTPVEYPMETSGIEQMDVTMSGEASAPLPIRQPNSGPYKKQAFPMISKRPEHLRMNL

种属预测

种属预测:

score>80的预测可信度较高，可尝试用于WB检测。*预测模型主要基于免疫原序列比对，结果仅作参考，不作为质保凭据。

Species

Results

Score

Pig

100

Horse

100

Bovine

100

Sheep

100

Dog

100

Xenopus

100

Chicken

100

Rabbit

100

Zebrafish

Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

翻译修饰 - P23443 作为底物

P23443

Site	PTM Type	Enzyme	Source
S40	Phosphorylation		Uniprot
S53	Phosphorylation	Q9HC98 (NEK6)	Uniprot
K85	Ubiquitination		Uniprot
K99	Ubiquitination		Uniprot
K104	Ubiquitination		Uniprot
K118	Ubiquitination		Uniprot
S243	Phosphorylation		Uniprot
T248	Phosphorylation		Uniprot
T250	Phosphorylation		Uniprot
T252	Phosphorylation	P42336 (PIK3CA) , O15530 (PDPK1)	Uniprot
T256	Phosphorylation		Uniprot
S278	Phosphorylation		Uniprot
K304	Acetylation		Uniprot
K364	Ubiquitination		Uniprot
K370	Ubiquitination		Uniprot
S371	Phosphorylation		Uniprot
T389	Phosphorylation		Uniprot
T390	Phosphorylation	P42345 (MTOR)	Uniprot
S394	Phosphorylation	P06493 (CDK1) , P42345 (MTOR)	Uniprot
T399	Phosphorylation		Uniprot
S403	Phosphorylation	Q9HC98 (NEK6)	Uniprot
T412	Phosphorylation	O94768 (STK17B) , O15530 (PDPK1) , Q8TDX7 (NEK7) , Q9HC98 (NEK6) , P42336 (PIK3CA) , P42345 (MTOR) , P23443 (RPS6KB1)	Uniprot
Y413	Phosphorylation		Uniprot
S417	Phosphorylation		Uniprot
S421	Phosphorylation		Uniprot
K425	Ubiquitination		Uniprot
S427	Phosphorylation		Uniprot
S434	Phosphorylation	P06493 (CDK1) , P42345 (MTOR) , P45984 (MAPK9) , P27361 (MAPK3) , P45983 (MAPK8) , P28482 (MAPK1)	Uniprot
S441	Phosphorylation		Uniprot
T444	Phosphorylation	P06493 (CDK1) , P28482 (MAPK1)	Uniprot
S447	Phosphorylation	P28482 (MAPK1) , P06493 (CDK1) , P42345 (MTOR)	Uniprot
K450	Ubiquitination		Uniprot
S452	Phosphorylation		Uniprot
S462	Phosphorylation		Uniprot
T470	Phosphorylation		Uniprot
K516	Acetylation		Uniprot
R522	Methylation		Uniprot

翻译修饰 - P23443 作为激酶

P23443

Substrate	Site	Source
O00418 (EEF2K)	S366	Uniprot
O60825 (PFKFB2)	S466	Uniprot
O94763 (URI1)	S372	Uniprot
P03372 (ESR1)	S167	Uniprot
P04637 (TP53)	S392	Uniprot
P04792 (HSPB1)	S15	Uniprot
P04792 (HSPB1)	S78	Uniprot
P04792 (HSPB1)	S82	Uniprot
P08151 (GLI1)	S84	Uniprot
P10636-8 (MAPT)	T212	Uniprot
P10636-8 (MAPT)	S214	Uniprot
P10636-8 (MAPT)	S262	Uniprot
P23443 (RPS6KB1)	T412	Uniprot
P23588-1 (EIF4B)	S422	Uniprot
P27708 (CAD)	S1859	Uniprot
P35568 (IRS1)	S270	Uniprot
P35568 (IRS1)	S307	Uniprot
P35568 (IRS1)	S527	Uniprot
P35568 (IRS1)	S636	Uniprot
P35568 (IRS1)	S1101	Uniprot
P42345 (MTOR)	T2446	Uniprot
P42345 (MTOR)	S2448	Uniprot
P49841 (GSK3B)	S9	Uniprot
P62753 (RPS6)	S235	Uniprot
P62753 (RPS6)	S236	Uniprot
P62753 (RPS6)	S240	Uniprot
P62753 (RPS6)	S244	Uniprot
P62753 (RPS6)	S247	Uniprot
P78371 (CCT2)	S260	Uniprot
Q05195 (MXD1)	S145	Uniprot
Q06787 (FMR1)	S500	Uniprot
Q09161 (NCBP1)	S7	Uniprot
Q09161 (NCBP1)	T21	Uniprot
Q09161 (NCBP1)	S22	Uniprot
Q15831-1 (STK11)	S428	Uniprot
Q16873 (LTC4S)	S36	Uniprot
Q53EL6 (PDCD4)	S67	Uniprot
Q6R327 (RICTOR)	T1135	Uniprot
Q8TB45 (DEPTOR)	S286	Uniprot
Q8TB45 (DEPTOR)	S287	Uniprot
Q8TB45 (DEPTOR)	S291	Uniprot
Q92519 (TRIB2)	S83	Uniprot
Q92934 (BAD)	S99	Uniprot
Q9BY77 (POLDIP3)	S383	Uniprot
Q9BY77 (POLDIP3)	S385	Uniprot
Q9BYV9 (BACH2)	S521	Uniprot
Q9H3D4 (TP63)	S477	Uniprot
Q9H3D4 (TP63)	T491	Uniprot
Q9H3D4 (TP63)	S560	Uniprot
Q9UN36 (NDRG2)	S332	Uniprot
Q9UN36 (NDRG2)	S350	Uniprot

研究背景

P23443_KS6B1_HUMAN

功能:

Serine/threonine-protein kinase that acts downstream of mTOR signaling in response to growth factors and nutrients to promote cell proliferation, cell growth and cell cycle progression. Regulates protein synthesis through phosphorylation of EIF4B, RPS6 and EEF2K, and contributes to cell survival by repressing the pro-apoptotic function of BAD. Under conditions of nutrient depletion, the inactive form associates with the EIF3 translation initiation complex. Upon mitogenic stimulation, phosphorylation by the mammalian target of rapamycin complex 1 (mTORC1) leads to dissociation from the EIF3 complex and activation. The active form then phosphorylates and activates several substrates in the pre-initiation complex, including the EIF2B complex and the cap-binding complex component EIF4B. Also controls translation initiation by phosphorylating a negative regulator of EIF4A, PDCD4, targeting it for ubiquitination and subsequent proteolysis. Promotes initiation of the pioneer round of protein synthesis by phosphorylating POLDIP3/SKAR. In response to IGF1, activates translation elongation by phosphorylating EEF2 kinase (EEF2K), which leads to its inhibition and thus activation of EEF2. Also plays a role in feedback regulation of mTORC2 by mTORC1 by phosphorylating RICTOR, resulting in the inhibition of mTORC2 and AKT1 signaling. Mediates cell survival by phosphorylating the pro-apoptotic protein BAD and suppressing its pro-apoptotic function. Phosphorylates mitochondrial URI1 leading to dissociation of a URI1-PPP1CC complex. The free mitochondrial PPP1CC can then dephosphorylate RPS6KB1 at Thr-412, which is proposed to be a negative feedback mechanism for the RPS6KB1 anti-apoptotic function. Mediates TNF-alpha-induced insulin resistance by phosphorylating IRS1 at multiple serine residues, resulting in accelerated degradation of IRS1. In cells lacking functional TSC1-2 complex, constitutively phosphorylates and inhibits GSK3B. May be involved in cytoskeletal rearrangement through binding to neurabin. Phosphorylates and activates the pyrimidine biosynthesis enzyme CAD, downstream of MTOR. Following activation by mTORC1, phosphorylates EPRS and thereby plays a key role in fatty acid uptake by adipocytes and also most probably in interferon-gamma-induced translation inhibition.

翻译修饰:

Phosphorylation at Thr-412 is regulated by mTORC1. The phosphorylation at this site is maintained by an agonist-dependent autophosphorylation mechanism (By similarity). Activated by phosphorylation at Thr-252 by PDPK1. Dephosphorylation by PPP1CC at Thr-412 in mitochondrion.

细胞定位:

Cell junction>Synapse>Synaptosome. Mitochondrion outer membrane. Mitochondrion.
Note: Colocalizes with URI1 at mitochondrion.

Nucleus. Cytoplasm.

Cytoplasm.

组织特异性:

Widely expressed.

亚基结构:

Interacts with PPP1R9A/neurabin-1 (By similarity). Interacts with RPTOR. Interacts with IRS1. Interacts with EIF3B and EIF3C. Interacts with TRAF4. Interacts with POLDIP3. Interacts (via N-terminus) with IER5.

蛋白家族:

The autoinhibitory domain is believed to block phosphorylation within the AGC-kinase C-terminal domain and the activation loop.

The TOS (TOR signaling) motif is essential for activation by mTORC1.

Belongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family. S6 kinase subfamily.

研究领域

· Cellular Processes > Transport and catabolism > Autophagy - animal. (View pathway)

· Environmental Information Processing > Signal transduction > ErbB signaling pathway. (View pathway)

· Environmental Information Processing > Signal transduction > HIF-1 signaling pathway. (View pathway)

· Environmental Information Processing > Signal transduction > mTOR signaling pathway. (View pathway)

· Environmental Information Processing > Signal transduction > PI3K-Akt signaling pathway. (View pathway)

· Environmental Information Processing > Signal transduction > AMPK signaling pathway. (View pathway)

· Environmental Information Processing > Signal transduction > TGF-beta signaling pathway. (View pathway)

· Environmental Information Processing > Signal transduction > Apelin signaling pathway. (View pathway)

· Human Diseases > Drug resistance: Antineoplastic > EGFR tyrosine kinase inhibitor resistance.

· Human Diseases > Drug resistance: Antineoplastic > Endocrine resistance.

· Human Diseases > Endocrine and metabolic diseases > Insulin resistance.

· Human Diseases > Infectious diseases: Viral > Human papillomavirus infection.

· Human Diseases > Cancers: Overview > Pathways in cancer. (View pathway)

· Human Diseases > Cancers: Overview > Proteoglycans in cancer.

· Human Diseases > Cancers: Specific types > Colorectal cancer. (View pathway)

· Human Diseases > Cancers: Specific types > Pancreatic cancer. (View pathway)

· Human Diseases > Cancers: Specific types > Acute myeloid leukemia. (View pathway)

· Human Diseases > Cancers: Specific types > Breast cancer. (View pathway)

· Human Diseases > Cancers: Specific types > Hepatocellular carcinoma. (View pathway)

· Human Diseases > Cancers: Specific types > Gastric cancer. (View pathway)

· Human Diseases > Cancers: Overview > Choline metabolism in cancer. (View pathway)

· Organismal Systems > Aging > Longevity regulating pathway. (View pathway)

· Organismal Systems > Aging > Longevity regulating pathway - multiple species. (View pathway)

· Organismal Systems > Immune system > Fc gamma R-mediated phagocytosis. (View pathway)

· Organismal Systems > Endocrine system > Insulin signaling pathway. (View pathway)

文献引用

1). Rationally designed rapamycin-encapsulated ZIF-8 nanosystem for overcoming chemotherapy resistance. BIOMATERIALS, 2020 (PubMed: 32841911) [IF=14.0]

Application: WB Species: human Sample: MCF-7/ADR cells

Figure 2.(b) ZIF-8 (10 µg mL−1, 24 h) did not inhibit p70S6K phosphorylation at Thr389 and mTOR phosphorylation at Ser2448 but induced the accumulation of LC3-II, suggesting ZIF-8 elicited mTOR-independent autophagy.

2). Activation of integrated stress response and disordered iron homeostasis upon combined exposure to cadmium and PCB77. JOURNAL OF HAZARDOUS MATERIALS, 2020 (PubMed: 31837937) [IF=13.6]

Application: WB Species: Human Sample: HEL cells

Fig. 5. Disordered iron homeostasis and inhibited mTORC1 activity upon exposure to CdCl2 and PCB77 at low dose. (A) The relative fluorescence intensity of CAeAM for measuring LIP to reflect intracellular iron availability (n = 3–4), and (B) Representative blots of FTH1 protein content to reflect iron storage. Analyses were performed after single or combined exposure to CdCl2 and PCB77 at 1 μM for 48 h. (C) Phosphorylated S6 and total S6 content to reflect mTORC1 activity as measured by Western blot. Ratio of FTH1 to eIF2αP and ratio of pS6 to S6 in the control group were defined as 1. Analyses were performed after single or combined exposure to CdCl2 and PCB77 at 1 μM for 48 h. a- significantly different from the control group. Data were presented in mean ± SE. P < 0.05 was considered statistically significant.

3). NCAPD2 inhibits autophagy by regulating Ca2+/CAMKK2/AMPK/mTORC1 pathway and PARP-1/SIRT1 axis to promote colorectal cancer. CANCER LETTERS, 2021 (PubMed: 34229059) [IF=9.7]

Application: WB Species: Human Sample: CRC cells

Fig. 2. NCAPD2 inhibited cell autophagy and disrupted autophagic flux via Ca2+/CAMKK2/AMPK/mTORC1 pathway. (A) Western blot analyses for phosphorylated mTOR (p-mTOR, S2448), phosphorylated p70S6K (p-p70S6K, T389/412), phosphorylated 4E-BP1 (p-4E-BP1, T70) and phosphorylated AKT (p-AKT, S473) in CRCC cells with different treatments as indicated. (B) Western blot of indicated proteins in cells treated with mTORC1 inhibitor Rapamycin (3 nM, 24h). (C) Immunofluorescence staining of LC3II (red) and P62 (red) in CRC cells with different treatments as indicated. Merged images represented overlays of LC3II or P62 and nuclear staining by DAPI (blue). (D) Intracellular Ca2+ levels were analyzed by flow cytometry after staining with the fluorescent probe Fluo-3, AM in CRC cells. (E) Representative Western blot gel documents of phosphorylated CAMKK2(S511), phosphorylated AMPK(T172), phosphorylated mTOR(S2448), Beclin, ATG5, P62, LC3II in CRC cells with different treatments. (F) Western blots of indicated proteins in cells treated with an inhibitor of microsomal Ca2+-ATPase Thapsigargin (1 μM, 6h) and Ca2+ chelator BAPTA-AM (10 μM, 12h) respectively. Results are shown as mean ± s.d, *P < 0.05, **P < 0.01, ***P < 0.001, based on Student’s t-test. . (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)

4). Inhibition of PTP1B blocks pancreatic cancer progression by targeting the PKM2/AMPK/mTOC1 pathway. Cell Death & Disease, 2019 (PubMed: 31745071) [IF=9.0]

Application: WB Species: Human Sample: pancreatic cancer tissue

Fig. 6 The relationship between PTP1B and AMPK. a PTP1B overexpression resulted in decreased p-AMPK (alpha). b, c The negative correlation between PTP1B and p-AMPKα was showed in pancreatic cancer patient tissue samples (p < 0.001, p value was obtained by a Pearson χ2 test; scale bar, 200 μm and 50 μm). d PTP1B inhibition either by shRNAs or by LXQ46 increased the phosphorylation of PKM2. e, f The inactivated PKM2 resulted in increased phosphorylation of AMPKα and decreased the phosphorylation of PRAS40, causing the inhibition of mTOC1 activity. g PTP1B inhibition caused AMPK activation and decreased p-p70S6K in vivo (scale bar, 200 and 50 μm).

5). PPM1H is down-regulated by ATF6 and dephosphorylates p-RPS6KB1 to inhibit progression of hepatocellular carcinoma. Molecular therapy. Nucleic acids, 2023 (PubMed: 37456776) [IF=8.8]

Application: WB Species: Human Sample: Hep-G2 cells

Figure 4. PPM1H directly dephosphorylated p-RPS6KB1 A–C) 24 h after transfection, cells were cultured in basal medium without serum overnight; insulin (10 ng/μL) was added 2 h before harvest to activate phosphorylation of RPS6KB1. (A) FLAG-PPM1H was transfected into Hep-G2 cells with or without insulin treatment, and coIP was performed to examine the level of RPS6KB1 combined with PPM1H. (B) CoIP analysis of PPM1H and RPS6KB1 in FLAG-RPS6KB1-transfected Hep-G2 cells with or without insulin treatment. (C) Western blot analysis of the indicated protein levels in PPM1H-overexpressing Hep-G2 cells with or without insulin treatment. (D) In vitro phosphatase assay to determine the interaction between PPM1H and p-RPS6KB1. (E and F) Western blot analysis of the indicated protein levels in vector, ATF6, sh-NC, and sh-ATF6 transfected Hep-G2 cells (E) and in liver tissues of Atf6fl/fl or Atf6Δhep mice. (G) The RPS6KB1 inhibitor PF-4708671 was added to cells at a concentration of 10 μM, which effectively blocked phosphorylation of p-RPS6KB1. Transwell assays revealed that the migration and invasion of PF-4708671-treated Hep-G2 and Huh-7 cells showed little difference between vector and PPM1H. Magnification, ×100. (H) Quantification of (G). Data represent the mean ± SD of three independent experiments. ns, not significant.

6). Targeting mTOR/YY1 signaling pathway by quercetin through CYP7A1-mediated cholesterol-to-bile acids conversion alleviated type 2 diabetes mellitus induced hepatic lipid accumulation. Phytomedicine, 2023 (PubMed: 36889164) [IF=7.9]

7). CEMIP promotes ovarian cancer development and progression via the PI3K/AKT signaling pathway. BIOMEDICINE & PHARMACOTHERAPY, 2019 (PubMed: 30925458) [IF=7.5]

8). Exosomes derived from miR-26a-modified MSCs promote axonal regeneration via the PTEN/AKT/mTOR pathway following spinal cord injury. Stem Cell Research & Therapy, 2021 (PubMed: 33820561) [IF=7.5]

Application: WB Species: rat Sample: PC17 cells

FIGURE S2 | miR-26a-overexpressing exosomes inhibited autophagic activity and promoted axonal generation in PC12 cells. (a) The ability of Exos-26a to generate neurofilament (red fluorescent dye) in PC12 cells, which could be reversed by rapamycin. (b, c) Representative images of western blots used to determine the expression levels of NF, mTOR, p-mTOR, AMPK, p-AMPK, S6K, p-S6K, ULK1, p-ULK1, and p62 and semiquantification of the data. RAP indicates miR-26a exosome and rapamycin (100 nM) treatment for 48 h before lysis. *P < 0.05, **P < 0.01, ***P < 0.001 compared with the control group by t test or ANOVA. #P < 0.05 and ##P < 0.01 compared with the RAP group by t test. n = 3 for each group.

9). Patchouli alcohol protects against chronic unpredictable mild stress-induced depressant-like behavior through inhibiting excessive autophagy via activation of mTOR signaling pathway. BIOMEDICINE & PHARMACOTHERAPY, 2020 (PubMed: 32244196) [IF=7.5]

Application: WB Species: rat Sample: hippocampus

Fig. 5.| The effect of PA on the level of expression of p-p70S6K protein in the hippocampus. (A) The effect of PA on p-p70S6K and p70S6K protein levels in hippocampus were investigated by western blot analysis.

10). Timosaponin BII improved osteoporosis caused by hyperglycemia through promoting autophagy of osteoblasts via suppressing the mTOR/NFκB signaling pathway. Free Radical Biology and Medicine, 2021 (PubMed: 33992678) [IF=7.4]

Application: WB Species: Rat Sample: osteoblasts

Fig. 5. Timosaponin BII downregulated mTOR signaling in tibias of diabetic rats and in the high glucose-induced osteoblasts. A: Photomicrographs of the immunohistochemistry staining ( × 200, scale bar: 100 μm; × 400, scale bar: 50 μm) and the quantification of the p-mTOR expression in tibias of different groups of rats. Error bars indicated SEM (n = 6). **P < 0.01 compared with the Mod group. The arrows denoted positive staining. B: Representative western blot images and the quantification of p-mTOR, mTOR, p-S6K and S6K expression in the high glucose-induced osteoblasts with the treatment with TBII (0.1 μmol/L, 1 μmol/L, 10 μmol/L) and in those cells with NAC (25 μmol/L) incubation for 48 h **P < 0.01 compared with the high glucose group.

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Phospho-p70 S6 Kinase (Thr389/Thr412) Antibody - #AF3228

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