1.Flavonoid-Rich Extract of Oldenlandia diffusa (Willd.) Roxb. Inhibits Gastric Cancer by Activation of Caspase-Dependent Mitochondrial Apoptosis.
Jia-Yin LING ; Qiu-Lan WANG ; Hao-Nan LIANG ; Qing-Bo LIU ; Dong-Hong YIN ; Li LIN
Chinese journal of integrative medicine 2023;29(3):213-223
OBJECTIVE:
To evaluate the apoptosis and cycle arrest effects of Oldenlandia diffusa flavonoids on human gastric cancer cells, determine the action mechanisms in association with the mitochondrial dependent signal transduction pathway that controls production of reactive oxygen species (ROS), and evaluate the pharmacodynamics of a mouse xenotransplantation model to provide a reference for the use of flavonoids in prevention and treatment of gastric cancer.
METHODS:
Flavonoids were extracted by an enzymatic-ultrasonic assisted method and purified with D-101 resin. Bioactive components were characterized by high-performance liquid chromatography. Cell lines MKN-45, AGS, and GES-1 were treated with different concentrations of flavonoids (64, 96, 128, 160 µg/mL). The effect of flavonoids on cell viability was evaluated by MTT method, and cell nuclear morphology was observed by Hoechst staining. The apoptosis rate and cell cycle phases were measured by flow cytometry, the production of ROS was detected by laser confocal microscope, the mitochondrial membrane potential (MMP) were observed by fluorescence microscope, and the expression of apoptotic proteins related to activation of mitochondrial pathway were measured by immunoblotting. MKN-45 cells were transplanted into BALB/c nude mice to establish a xenograft tumor model. Hematoxylin and eosin staining was used to reveal the subcutaneous tumor tissue. The tumor volume and tumor weight were measured, the expression levels of proliferation markers proliferating cell nuclear antigen (PCNA) and Ki-67 were detected by immunohistochemistry, and the expression levels of CA72-4 were measured by enzyme linked immunosorbent assay.
RESULTS:
Oldenlandia diffusa flavonoids inhibited proliferation of MKN-45 and AGS human gastric cancer cells, arrested the cell cycle in G1/S phase, induced accumulation of ROS in the process of apoptosis, and altered MMP. In addition, flavonoids increased Apaf-1, Cleaved-Caspase-3, and Bax, and decreased Cyclin A, Cdk2, Bcl-2, Pro-Caspase-9, and Mitochondrial Cytochrome C (P<0.05). The MKN-45 cell mouse xenotransplantation model further clarified the growth inhibitory effect of flavonoids towards tumors. The expression levels of PCNA and Ki-67 decreased in each flavonoid dose group, the expression level of CA72-4 decreased (P<0.05).
CONCLUSION
Flavonoids derived from Oldenlandia diffusa can inhibit proliferation and induce apoptosis of human gastric cancer cells by activating the mitochondrial controlled signal transduction pathway.
Humans
;
Animals
;
Mice
;
Oldenlandia/metabolism*
;
Proliferating Cell Nuclear Antigen
;
Stomach Neoplasms
;
Flavonoids/pharmacology*
;
Reactive Oxygen Species/metabolism*
;
Mice, Nude
;
Ki-67 Antigen
;
Cell Line, Tumor
;
Apoptosis
;
Plant Extracts/pharmacology*
;
Caspases
;
Cell Proliferation
2.Panax notoginseng saponins improve monocrotaline-induced pulmonary arterial hypertension in rats by inhibiting ADAM10/Notch3 signaling pathway.
Sai ZHANG ; Yun-Na TIAN ; Zheng-Yang SONG ; Xiao-Ting WANG ; Xin-Yu WANG ; Jun-Peng XU ; Lin-Bo YUAN ; Wan-Tie WANG
Acta Physiologica Sinica 2023;75(4):503-511
In this study, we investigated the effects of Panax notoginseng saponins (PNS) on pulmonary vascular remodeling and ADAM10/Notch3 pathway in pulmonary arterial hypertension (PAH). PAH rat model was established, and male Sprague Dawley (SD) rats were randomly divided into control group, monocrotaline (MCT) group and MCT+PNS group, with 10 rats in each group. Rats in the control group were intraperitoneally injected with equal volume of normal saline. Rats in the MCT group was injected intraperitoneally with 60 mg/kg MCT on the first day, and then with the same volume of normal saline every day. Rats in the MCT+PNS group was injected intraperitoneally with 60 mg/kg MCT on the first day, and then with 50 mg/kg PNS every day. The modeling time of each group lasted for 21 days. After the model was established, the mean pulmonary artery pressure (mPAP) was measured by right heart catheterization technique, the right ventricular hypertrophy index (RVHI) was calculated, the microscopic morphology and changes of pulmonary vascular wall were observed by HE and Masson staining, and the expressions of ADAM10, Notch3, Hes-1, P27, PCNA, Caspase-3 proteins and mRNA in pulmonary vascular tissue of rats were detected by Western blot and qPCR. The expression and localization of Notch3 and α-SMA were detected by immunofluorescence staining. The protein expression of ADAM10 was detected by immunohistochemical staining. The results showed that compared with the control group, mPAP, RVHI, pulmonary vessels and collagen fibers in the MCT group were significantly increased, the expressions of ADAM10, Notch3, Hes-1, and PCNA protein and mRNA were significantly increased, while the expressions of P27 and Caspase-3 protein and mRNA were decreased significantly. Compared with the MCT group, mPAP and RVHI were significantly decreased, pulmonary vessels were significantly improved and collagen fibers were significantly reduced, the expressions of protein and mRNA of ADAM10, Notch3, Hes-1, and PCNA were decreased in MCT+PNS group, but the expressions of protein and mRNA of P27 and Caspase-3 were increased slightly. The results of immunofluorescence showed that Notch3 and α-SMA staining could overlap, which proved that Notch3 was expressed in smooth muscle cells. The expression of Notch3 in the MCT group was increased significantly compared with that in the control group, while PNS intervention decreased the expression of Notch3. Immunohistochemical staining showed that compared with the control group, the amount of ADAM10 in the MCT group was increased significantly, and the expression of ADAM10 in the MCT+PNS group was decreased compared with the MCT group. These results indicate that PNS can improve the PAH induced by MCT in rats by inhibiting ADAM10/Notch3 signaling pathway.
Animals
;
Male
;
Rats
;
Caspase 3/metabolism*
;
Collagen
;
Disease Models, Animal
;
Hypertension, Pulmonary/drug therapy*
;
Monocrotaline/adverse effects*
;
Panax notoginseng/chemistry*
;
Proliferating Cell Nuclear Antigen/pharmacology*
;
Pulmonary Arterial Hypertension
;
Pulmonary Artery/metabolism*
;
Rats, Sprague-Dawley
;
Receptor, Notch3/genetics*
;
RNA, Messenger
;
Saline Solution
;
Signal Transduction
;
Saponins/pharmacology*
3.Radix Scrophulariae Extracts Exert Effect on Hyperthyroidism via MST1/Hippo Signaling Pathway.
Ning ZHANG ; Tao YE ; Xu LU ; Zi-Hui LI ; Ling LI
Chinese journal of integrative medicine 2023;29(11):998-1006
OBJECTIVE:
To explore the mechanism of Radix Scrophulariae (RS) extracts in the treatment of hyperthyroidism rats by regulating proliferation, apoptosis, and autophagy of thyroid cell through the mammalian sterile 20-like kinase 1 (MST1)/Hippo pathway.
METHODS:
Twenty-four rats were randomly divided into 4 groups according to a random number table: control, model group, RS, and RS+Hippo inhibitor (XMU-MP-1) groups (n=6 per group). Rats were gavaged with levothyroxine sodium tablet suspension (LST, 8 μ g/kg) for 21 days except for the control group. Afterwards, rats in the RS group were gavaged with RS extracts at the dose of 1,350 mg/kg, and rats in the RS+XMU-MP-1 group were gavaged with 1,350 mg/kg RS extracts and 1 mg/kg XMU-MP-1. After 15 days of administration, thyroid gland was taken for gross observation, and histopathological changes were observed by hematoxylin-eosin staining. The structure of Golgi secretory vesicles in thyroid tissues was observed by transmission electron microscopy. The expression of thyrotropin receptor (TSH-R) was observed by immunohistochemistry. Terminal-deoxynucleoitidyl transferase mediated nick end labeling assay was used to detect cell apoptosis in thyroid tissues. Real-time quantity primer chain reaction and Western blot were used to detect the expressions of MST1, p-large tumor suppressor gene 1 (LATS1), p-Yes1 associated transcriptional regulator (YAP), proliferating cell nuclear antigen (PCNA), G1/S-specific cyclin-D1 (Cyclin D1), B-cell lymphoma-2 (Bcl-2), Caspase-3, microtubule-associated proeins light chain 3 II/I (LC3-II/I), and recombinant human autophagy related 5 (ATG5). Thyroxine (T4) level was detected by enzyme-linked immunosorbent assay.
RESULTS:
The thyroid volume of rats in the model group was significantly increased compared to the normal control group (P<0.01), and pathological changes such as uneven size of follicular epithelial cells, disorderly arrangement, and irregular morphology occurred. The secretion of small vesicles by Golgi apparatus was reduced, and the expressions of receptor protein TSH-R and T4 were significantly increased (P<0.01), while the expressions of MST1, p-LATS1, p-YAP, Caspase-3, LC3-II/I, and ATG5 were significantly decreased (P<0.01). The expressions of Bcl-2, PCNA, and cyclin D1 were significantly increased (P<0.01). Compared with the model group, RS extracts reduced the volume of thyroid gland, improved pathological condition of the thyroid gland, promoted secretion of the secretory vesicles with double-layer membrane structure in thyroid Golgi, significantly inhibited the expression of TSH-R and T4 levels (P<0.01), upregulated MST1, p-LATS1, p-YAP, Caspase-3, LC3-II/I, and ATG5 expressions (P<0.01), and downregulated Bcl-2, PCNA, and Cyclin D1 expressions (P<0.01). XMU-MP-1 inhibited the intervention effects of RS extracts (P<0.01).
CONCLUSION
RS extracts could inhibit proliferation and promote apoptosis and autophagy in thyroid tissues through MST1/Hippo pathway for treating hyperthyroidism.
Rats
;
Humans
;
Animals
;
Hippo Signaling Pathway
;
Proliferating Cell Nuclear Antigen/metabolism*
;
Cyclin D1/pharmacology*
;
Caspase 3/metabolism*
;
Protein Serine-Threonine Kinases/pharmacology*
;
Apoptosis
;
Hyperthyroidism/drug therapy*
;
Proto-Oncogene Proteins c-bcl-2/metabolism*
;
Thyrotropin/pharmacology*
;
Mammals/metabolism*
4.Babao Dan Alleviates 5-Fluorouracil-Induced Intestinal Damage via Wnt/β-Catenin Pathway.
Meng-Xuan GUI ; Bin HUANG ; Jun PENG ; Xi CHEN ; Ragunath MUTHU ; Ying GAO ; Rui-Guo WANG ; Jiu-Mao LIN
Chinese journal of integrative medicine 2022;28(11):1000-1006
OBJECTIVE:
To evaluate the protective function of Babao Dan (BBD) on 5-flurouracil (5-FU)-induced intestinal mucositis (IM) and uncover the underlying mechanism.
METHODS:
A total of 18 male mice were randomly divided into 3 groups by a random number table, including control, 5-FU and 5-FU combined BBD groups, 6 mice in each group. A single intraperitoneal injection of 5-FU (150 mg/kg) was performed in 5-FU and 5-FU combined BBD groups on day 0. Mice in 5-FU combined BBD group were gavaged with BBD (250 mg/kg) daily from day 1 to 6. Mice in the control group were gavaged with saline solution for 6 days. The body weight and diarrhea index of mice were recorded daily. On the 7th day, the blood from the heart of mice was collected to analyze the proportional changes of immunological cells, and the mice were subsequently euthanized by mild anesthesia with 2% pentobarbital sodium. Colorectal lengths and villus heights were measured. Intestinal-cellular apoptosis and proliferation were evaluated by Tunel assay and immunohistochemical staining of proliferating cell nuclear antigen, respectively. Immunohistochemistry and Western blot were performed to investigate the expressions of components in Wnt/β-catenin pathway (Wnt3, LRP5, β-catenin, c-Myc, LRG5 and CD44).
RESULTS:
BBD obviously alleviated 5-FU-induced body weight loss and diarrhea, and reversed the decrease in the number of white blood cells, including monocyte, granulocyte and lymphocyte, and platelet (P<0.01). The shortening of colon caused by 5-FU was also reversed by BBD (P<0.01). Moreover, BBD inhibited apoptosis and promoted proliferation in jejunum tissues so as to reduce the intestinal mucosal damage and improve the integrity of villus and crypts. Mechanically, the expression levels of Wnt/β -catenin mediators such as Wnt3, LRP5, β-catenin were upregulated by BBD, activating the transcription of c-Myc, LRG5 and CD44 (P<0.01).
CONCLUSIONS
BBD attenuates the adverse effects induced by 5-FU via Wnt/β-catenin pathway, suggesting it may act as a potential agent against chemotherapy-induced intestinal mucositis.
Animals
;
Male
;
Mice
;
Antineoplastic Agents/therapeutic use*
;
beta Catenin/metabolism*
;
Diarrhea/drug therapy*
;
Fluorouracil/pharmacology*
;
Intestinal Mucosa
;
Mucositis/metabolism*
;
Pentobarbital/therapeutic use*
;
Proliferating Cell Nuclear Antigen/metabolism*
;
Saline Solution
5.Metformin improves polycystic ovary syndrome and activates female germline stem cells in mice.
Chun-Hong WANG ; Qiang-Qiang WANG ; Ya-Shan SU ; Ya-Qun SUN ; Miao SUN ; Xin-Rui LIU ; Hui-Ming MA ; Guang-Yong LI ; Xiao-Li DU ; Rui HE
Acta Physiologica Sinica 2022;74(3):370-380
Polycystic ovary syndrome (PCOS) is a common disease caused by complex endocrine and metabolic abnormalities in women of childbearing age. Metformin is the most widely used oral hypoglycemic drug in clinic. In recent years, metformin has been used in the treatment of PCOS, but its mechanism is not clear. In this study, we aimed to investigate the effect of metformin on PCOS and its mechanism through PCOS mouse model. Female C57BL/6J mice aged 4-5 weeks were intragastrically given letrozole (1 mg/kg daily) combined with a high-fat diet (HFD) for 21 days to establish the PCOS model. After modeling, metformin (200 mg/kg daily) was intragastrically administered. One month later, the body weight and oral glucose tolerance test (OGTT) were measured. Hematoxylin eosin (H&E) staining was used to detect the pathological changes of ovary. The serum levels of anti-Mullerian hormone (AMH), follicle-stimulating hormone (FSH), luteinizing hormone (LH), E2 and testosterone (T) were measured by ELISA. The expression of DDX4/MVH was detected by immunohistochemistry. DDX4/MVH and PCNA were co-labeled by immunofluorescence. The protein levels of DDX4/MVH, PCNA, cyclin D2, AMPK and mTOR were detected by Western blot. The results showed that after metformin treatment, the body weights of PCOS mice were gradually returned to normal, glucose tolerance was significantly improved, serum E2 levels were increased, while AMH, LH, T levels and LH/FSH ratio were decreased. Ovarian polycystic lesions were reduced with reduced atresia follicles. Furthermore, the number of proliferative female germline stem cells (FGSCs) and levels of proliferation related proteins (PCNA, cyclin D2) were significantly increased, and the p-mTOR and p-AMPK levels were markedly up-regulated. These results suggest that metformin treatment not only improves hyperandrogenemia, glucose intolerance and polycystic ovarian lesions in PCOS, but also activates the function of FGSCs. The underlying mechanism may be related to the phosphorylation of AMPK and mTOR. These findings provide new evidence to use metformin in the treatment of PCOS and follicular development disorder.
AMP-Activated Protein Kinases
;
Animals
;
Cyclin D2
;
Female
;
Follicle Stimulating Hormone/therapeutic use*
;
Humans
;
Luteinizing Hormone/therapeutic use*
;
Metformin/pharmacology*
;
Mice
;
Mice, Inbred C57BL
;
Oogonial Stem Cells/metabolism*
;
Ovarian Cysts/drug therapy*
;
Ovarian Neoplasms
;
Polycystic Ovary Syndrome/drug therapy*
;
Proliferating Cell Nuclear Antigen/therapeutic use*
;
TOR Serine-Threonine Kinases
6.Interleukin-17 promotes mouse hepatoma cell proliferation by antagonizing interferon-γ.
Jie LI ; Kun YAN ; Yi YANG ; Hua LI ; Zhidong WANG ; Xin XU
Journal of Southern Medical University 2019;39(1):1-5
OBJECTIVE:
To investigate the interaction between interleukin-17 (IL-17) and interferon-γ (IFN-γ) and how their interaction affects the growth of mouse hepatoma Hepa1-6 cells.
METHODS:
Hepa1-6 cells treated with IL-17 and IFN-γ either alone or in combination were examined for changes in cell proliferation using MTT assay and in cell cycle distribution using flow cytometry. Western blotting was used to detect the protein expression levels of proliferating cell nuclear antigen (PCNA), cyclin D1, P21 and P16 and the phosphorylation of p38MAPK, ERK1/2 and Stat1 in the cells.
RESULTS:
Compared with control group, IFN-γ treatment obviously inhibited the growth and proliferation of Hepa1-6 cells, induced cell cycle arrest at G0/G1 phase, reduced the protein expression of PCNA and cyclin D1, and increased the protein expression of P21. IL-17 alone had no effect on the growth of Hepa1-6 cells. In the combined treatment, IL-17 significantly antagonized the effects of IFN-γ. Compared with those treated with IFN-γ alone, the cells with the combined treatment showed significantly decreased G0/G1 cell population, increased the protein expressions of PCNA and cyclin D1, and decreased the protein expression of P21. IL-17 significantly inhibited IFN-γ-induced phosphorylation of p38MAPK and ERK1/2 without affecting the phosphorylation of Stat1.
CONCLUSIONS
IL-17 obviously reverses the antitumor effects of IFN-γ to promote the proliferation of mouse hepatoma cells and accelerate the development of hepatocellular carcinoma.
Animals
;
Carcinoma, Hepatocellular
;
metabolism
;
pathology
;
Cell Cycle
;
Cell Line, Tumor
;
Cell Proliferation
;
drug effects
;
Cyclin D1
;
metabolism
;
Cyclin-Dependent Kinase Inhibitor p21
;
metabolism
;
Interferon-gamma
;
antagonists & inhibitors
;
Interleukin-17
;
pharmacology
;
Liver Neoplasms
;
metabolism
;
pathology
;
Mice
;
Neoplasm Proteins
;
metabolism
;
Proliferating Cell Nuclear Antigen
;
metabolism
7.Sub-cytotoxic concentrations of ionic silver promote the proliferation of human keratinocytes by inducing the production of reactive oxygen species.
Xiaodong DUAN ; Daizhi PENG ; Yilan ZHANG ; Yalan HUANG ; Xiao LIU ; Ruifu LI ; Xin ZHOU ; Jing LIU
Frontiers of Medicine 2018;12(3):289-300
Silver-containing preparations are widely used in the management of skin wounds, but the effects of silver ions on skin wound healing remain poorly understood. This study investigated the effects of silver ions (Ag) on the proliferation of human skin keratinocytes (HaCaT) and the production of intracellular reactive oxygen species (ROS). After treating HaCaT cells with Ag and/or the active oxygen scavenger N-acetyl cysteine (NAC), cell proliferation and intracellular ROS generation were assessed using CCK-8 reagent and DCFH-DA fluorescent probe, respectively. In addition, 5-bromo-2-deoxyUridine (BrdU) incorporation assays, cell cycle flow cytometry, and proliferating cell nuclear antigen (PCNA) immunocytochemistry were conducted to further evaluate the effects of sub-cytotoxic Ag concentrations on HaCaT cells. The proliferation of HaCaT cells was promoted in the presence of 10 and 10 mol/L Ag at 24, 48, and 72 h. Intracellular ROS generation also significantly increased for 5-60 min after exposure to Ag. The number of BrdU-positive cells and the presence of PCNA in HaCaT cells increased 48 h after the addition of 10 and 10 mol/L Ag, with 10 mol/L Ag markedly increasing the cell proliferation index. These effects of sub-cytotoxic Ag concentrations were repressed by 5 mmol/L NAC. Our results suggest that sub-cytotoxic Ag concentrations promote the proliferation of human keratinocytes and might be associated with a moderate increase in intracellular ROS levels. This study provides important experimental evidence for developing novel silver-based wound agents or dressings with few or no cytotoxicity.
Apoptosis
;
drug effects
;
Cell Line
;
Cell Proliferation
;
drug effects
;
Fluorescent Antibody Technique
;
Humans
;
Keratinocytes
;
cytology
;
drug effects
;
Proliferating Cell Nuclear Antigen
;
metabolism
;
Reactive Oxygen Species
;
metabolism
;
Silver
;
pharmacology
8.Rutaecarpine Inhibits Intimal Hyperplasia in A Balloon-Injured Rat Artery Model.
Yang XU ; Xiu-Ping CHEN ; Feng ZHANG ; Hua-Hua HOU ; Jing-Yi ZHANG ; Shu-Xian LIN ; An-Sheng SUN
Chinese journal of integrative medicine 2018;24(6):429-435
OBJECTIVETo investigate the effect and potential mechanisms of rutaecarpine (Rut) in a rat artery balloon-injury model.
METHODSThe intimal hyperplasia model was established by rubbing the endothelia with a balloon catheter in the common carotid artery (CCA) of rats. Fifty rats were randomly divided into five groups, ie. sham, model, Rut (25, 50 and 75 mg/kg) with 10 rats of each group. The rats were treated with or without Rut (25, 50, 75 mg/kg) by intragastric administration for 14 consecutive days following injury. The morphological changes of the intima were evaluated by hematoxylin-eosin staining. The expressions of proliferating cell nuclear antigen (PCNA) and smooth muscle (SM) α-actin in the ateries were assayed by immunohistochemical staining. The mRNA expressions of c-myc, extracellular signal-regulated kinase 2 (ERK2), MAPK phosphatase-1 (MKP-1) and endothelial nitric oxide synthase (eNOS) were determined by real-time reverse transcription-polymerase chain reaction. The protein expressions of MKP-1 and phosphorylated ERK2 (p-ERK2) were examined by Western blotting. The plasma contents of nitric oxide (NO) and cyclic guanosine 3',5'-monophosphate (cGMP) were also determined.
RESULTSCompared with the model group, Rut treatment significantly decreased intimal thickening and ameliorated endothelial injury (P<0.05 or P<0.01). The positive expression rate of PCNA was decreased, while the expression rate of SM α-actin obviously increased in the vascular wall after Rut (50 and 75 mg/kg) administration (P<0.05 or P<0.01). Furthermore, the mRNA expressions of c-myc, ERK2 and PCNA were downregulated while the expressions of eNOS and MKP-1 were upregulated (P<0.05 or P<0.01). The protein expressions of MKP-1 and the phosphorylation of ERK2 were upregulated and downregulated after Rut (50 and 75 mg/kg) administration (P<0.05 or P<0.01), respectively. In addition, Rut dramatically reversed balloon injury-induced decrease of NO and cGMP in the plasma (P<0.05 or P<0.01).
CONCLUSIONRut could inhibit the balloon injury-induced carotid intimal hyperplasia in rats, possibly mediated by promotion of NO production and inhibiting ERK2 signal transduction pathways.
Actins ; metabolism ; Animals ; Carotid Arteries ; drug effects ; metabolism ; pathology ; Carotid Artery Injuries ; drug therapy ; genetics ; pathology ; Cyclic GMP ; blood ; Disease Models, Animal ; Gene Expression Regulation ; drug effects ; Hyperplasia ; Indole Alkaloids ; pharmacology ; therapeutic use ; Male ; Nitric Oxide ; blood ; Phosphorylation ; drug effects ; Proliferating Cell Nuclear Antigen ; metabolism ; Quinazolines ; pharmacology ; therapeutic use ; RNA, Messenger ; genetics ; metabolism ; Rats, Sprague-Dawley ; Tunica Intima ; drug effects ; pathology
9.Effects of Xialiqi Capsules on the expressions of PCNA and caspase-3 in rats withbenign prostatic hyperplasia.
Hong-Cai CAI ; Le-Bin SONG ; Guo-Wei ZHANG ; Xing-Rong QING ; Dun-Sheng MO ; Wei LIU ; Xu-Xin ZHAN ; Yu-Feng HUANG ; Xue-Jun SHANG
National Journal of Andrology 2017;23(8):728-733
Objective:
To explore the effects of Xialiqi Capsules(XLQ) on the expressions of the proliferating cell nuclear antigen (PCNA) and caspase-3 in the prostate tissue of the BPH rat model.
METHODS:
Fifty male SD ratswereequally randomized into groups A (sham operation control), B (BPH model control), C (high-dose XLQ), D (low-dose XLQ), and E (finasteridecontrol) andthe BPH modelswere established by subcutaneous injection of testosterone propionate at 0.5 mg per kilogram of the body weight per day for 30 days after castration. After modeling, the animals in groups A and B were treated intragastricallywith normal saline, while those in C, D, and E with XLQ at 1.20 and 0.61 g per kilogram of the body weight per day or finasterideat 0.8 mg per kilogram of the body weight per day, respectively, all for 30 days. Then,the bilateral prostates were harvestedfrom the rats for calculation of the prostatic index (prostate wet weight/ body weight) and determination of the expressions of PCNA and caspase-3 in the prostate tissue by immunohistochemistry and immunofluorescence staining, respectively.
RESULTS:
The prostate wet weight and prostate index were significantly increased in group B as compared with group A, ([1326±60] vs[471±17] g, P<0.01; [2.89±0.18] vs [1.06±0.06] mg/g, P<0.01), but decreased in groups C ([914±36] g;[2.02±0.08] mg/g), D ([1 099±46]g;[2.39±0.11] mg/g), and E ([817±53] g;[1.83±0.10] mg/g)in comparison with B (P<0.01), with statistically significant differences among groups C, D, and E(P<0.01) and most significantly in E.The PCNA level in the prostate tissue wasremarkably higher in group B than in A, but lower in groups C, D and E than in B. The expression of caspase-3 was down-regulatedin group B as compared with A, but up-regulated in groups C, D and E in comparison with B, most significantly in E.
CONCLUSIONS
Xialiqi Capsules can effectively reduce the prostate wet weight and prostatic index of in rats with BPH by inhibiting the level of PCNA and promoting the expression of caspase-3.
Animals
;
Capsules
;
Caspase 3
;
metabolism
;
Drugs, Chinese Herbal
;
administration & dosage
;
pharmacology
;
Finasteride
;
administration & dosage
;
pharmacology
;
Male
;
Orchiectomy
;
Organ Size
;
drug effects
;
Proliferating Cell Nuclear Antigen
;
metabolism
;
Prostate
;
drug effects
;
metabolism
;
pathology
;
Prostatic Hyperplasia
;
drug therapy
;
metabolism
;
pathology
;
Random Allocation
;
Rats
;
Rats, Sprague-Dawley
;
Urological Agents
;
administration & dosage
;
pharmacology
10.Impacts of DES on the expressions of related genes in the gubernaculums testis of newborn mice.
Wei-Liao LI ; Xuan ZHANG ; Yuan-Sheng DU ; Jian-Hong LI ; Xue-Wu JIANG
National Journal of Andrology 2017;23(7):583-588
Objective:
To investigate the influence of diethylstilbestrol (DES) on the mRNA expressions of the androgen receptor (AR), estrogen receptor α (ERα), proliferating cell nuclear antigen (PCNA), and actin alpha 1 (ACTα1) in the gubernaculums testis of newborn mice and explore their action mechanisms.
METHODS:
A total of 140 male Kunming mice were randomly divided into a blank control, a dimethyl sulfoxide (DMSO) control, and 5 experimental groups to be treated subcutaneously with normal saline, DMSO, and DES at 0.02, 0.1, 0.5, 10 and 50 μg per kg of the body weight per day, respectively, at gestation days 9-17. On the first day after birth, the animals were sacrificed and the gubernaculums testis collected for detection of the mRNA expressions of AR, ERα, PCNA and ACTα1 by RT-PCR.
RESULTS:
Compared with the DMSO control, the experimental groups, particularly the DES 10 and 50 μg groups, showed significant increases in the mRNA expression of ERα (RE2 = 0.825, P <0.05), but remarkable decreases in those of AR, PCNA and ACTα1 (RA2 = 0.713, RP2 = 0.946, RT2 = 0.960, P <0.01), all in a dose-dependent manner.
CONCLUSIONS
The AR, ERα, PCNA, and ACTα1 mRNA are expressed in the gubernaculum testis of normal newborn mice, and their expression levels may be influenced by intervention with different concentrations of DES during the gestation. Exogenous estrogens may affect the proliferation and contraction of gubernaculum testis cells and consequently the normal development of the testis or even the whole male reproductive system by influencing the metabolism of ER and/or AR.
Actins
;
metabolism
;
Animals
;
Animals, Newborn
;
Cells, Cultured
;
Diethylstilbestrol
;
pharmacology
;
Dimethyl Sulfoxide
;
pharmacology
;
Estrogen Receptor alpha
;
metabolism
;
Estrogens, Non-Steroidal
;
pharmacology
;
Genitalia, Male
;
Gubernaculum
;
drug effects
;
metabolism
;
Male
;
Mice
;
Proliferating Cell Nuclear Antigen
;
metabolism
;
RNA, Messenger
;
metabolism
;
Random Allocation
;
Receptors, Androgen
;
metabolism
;
Testis
;
drug effects
;
metabolism

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