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孙 奎, 闫 存, 李 志, 刘 平, 张 伟, 何 群. [Clinical value of serum isoform [-2] proprostate-specific antigen and its derivatives in predicting aggressive prostate cancer]. Beijing Da Xue Xue Bao Yi Xue Ban 2020; 52:234-239. [PMID: 32306004 PMCID: PMC7433460 DOI: 10.19723/j.issn.1671-167x.2020.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To explore the clinical value of serum isoform [-2] proprostate-specific antigen (p2PSA) and its derivatives %p2PSA and prostate health index (PHI) in predicting aggressive prostate cancer (PCa). METHODS The pre-operation serum and basic clinical data of 322 patients with PCa (including 143 patients diagnosed with PCa by transrectal ultrasound-guided prostate biopsy and 179 patients undergoing radical prostatectomy) in Peking University First Hospital were collected from August 2015 to May 2018. Serum total prostate-specific antigen (tPSA), free prostate antigen (fPSA) and fPSA/tPSA (f/t) and the p2PSA level of all these patients were measured on automatic immune analyzers DxI800, and then %p2PSA and PHI were calculated. The prostate pathologic result was considered as the gold standard to evaluate the Gleason score of the patients with PCa. Receiver operator curves (ROC) were used to assess the ability of p2PSA, %p2PSA and PHI to predict aggressive PCa (pathologic Gleason score≥7) compared with those traditional markers tPSA, fPSA and f/t. RESULTS Among these patients, the p2PSA, %p2PSA and PHI median levels were significantly higher in patients with pathologic Gleason score≥7 than those with Gleason score<7 (p2PSA: 30.22 ng/L vs. 18.33 ng/L; %p2PSA: 2.50 vs. 1.27; PHI: 91.81 vs. 35.44; all P<0.01). The area under curve (AUC) of %p2PSA and PHI (0.770, 0.760) in predicting Gleason score≥7 were higher than those of the traditional indicators tPSA, fPSA and f/t (AUC were 0.648, 0.536 and 0.693, respectively). Among those patients diagnosed with PCa by transrectal ultrasound-guided prostate biopsy, the AUC of %p2PSA and PHI (AUC were 0.808 and 0.801, respectively) in predicting Gleason score≥7 were higher than those of the traditional indicators tPSA, fPSA and f/t (AUC were 0.729, 0.655 and 0.665 respectively). Among those patients undergoing radical prostatectomy, PHI and %p2PSA also had the trend of higher predictive value than those of the traditional indicators. The AUC of %p2PSA and PHI were 0.798 and 0.744, respectively while the AUC of tPSA, fPSA and f/t were 0.625, 0.507 and 0.697, respectively. CONCLUSION Compared with traditional markers tPSA, fPSA and f/t, %p2PSA and PHI had much higher predictive value for aggressive PCa, which may help clinicians to evaluate the therapeutic regime and make more appropriate management plan for the patients.
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Affiliation(s)
- 奎霞 孙
- />北京大学第一医院检验科,北京 100034Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - 存玲 闫
- />北京大学第一医院检验科,北京 100034Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - 志艳 李
- />北京大学第一医院检验科,北京 100034Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - 平 刘
- />北京大学第一医院检验科,北京 100034Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - 伟 张
- />北京大学第一医院检验科,北京 100034Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - 群 何
- />北京大学第一医院检验科,北京 100034Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
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李 文, 任 思, 龙 星, 田 雨. [Palmitoylome profiling indicates that androgens promote the palmitoylation of metabolism-related proteins in prostate cancer-derived LNCaP cells]. Beijing Da Xue Xue Bao Yi Xue Ban 2020; 52:227-233. [PMID: 32306003 PMCID: PMC7433454 DOI: 10.19723/j.issn.1671-167x.2020.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To explore potential therapeutic targets other than androgen-deprivation treatment for prostate cancer by screening the proteins induced by androgen at palmitoylation modification level in LNCaP cells. METHODS The LNCaP cells were treated with androgen (Methyltrienolone, R1881, 5 nmol/L) or dimethyl sulfoxide (DMSO) for 24 h, and then labeled with alkynyl palmitic acid Alk-C16 (100 μmol/L). After that, the cells were collected, lysed, the total protein was extracted, agarose beads labeled with azide (1 mmol/L) were added, and the click-chemistry reaction was carried out at room temperature for 1 h. The covalent bond formed by click-chemistry reaction of azide and alkynyl group was used to enrich the palmitoylated proteins on agarose beads. Label-free quantitation (LFQ) was used to compare the protein palmitoylation level of R1881 treated and untreated cells to screen the proteins induced by androgen at palmitoylation modification level. RESULTS In this experiment, 907 potential palmitoylated proteins (mascot score>2, P<0.05) were identified, among which 430 proteins had LFQ values not zero at least twice. Among the 430 proteins, the palmitoylation levels of 92 candidates were increased by androgen treatment, and their LFQ values were significantly upregulated (>1.5-fold, P<0.05) in ≥2 samples of androgen-treated vs. untreated LNCaP cells. We also used the software of cytoscape to classify the 92 proteins, and found that the known functional proteins of them could be divided into three categories: metabolism related, protein folding related and translation initiation related. Among them, metabolism related proteins included lipid metabolism (6), glucose metabolism (7) and respiratory electron transport chain (8), and a small amount of amino acid metabolism (2) and other metabolism related proteins (2). Notably, the ratio of LFQ of cytochrome b-c1 complex subunit 2 (UQCRC2) was significantly (>3-fold, P<0.05) higher in androgen-treated cells compared with untreated cells, indicating that the palmitoylation level of UQCRC2 was enhanced by androgen most significantly than that of others. The second was long-chain acyl CoA dehydrogenase (ACADVL) related to lipid metabolism and glucose 6-phosphate dehydrogenase (PGD) related to glucose metabolism, but the LFQ ratio of them was less than 3-fold. CONCLUSION The research on palmitoylation mechanism of metabolism, especially the proteins related to respiratory electron transport chain, will provide a new guidance for the diagnosis and treatment of prostate cancer and the development of targeted drugs.
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Affiliation(s)
- 文卿 李
- 北京医院 国家老年医学中心 国家卫生健康委员会北京老年医学研究所 国家卫生健康委员会北京老年医学重点实验室 中国医学科学院老年医学研究院,北京 100730The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission; Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing 100730, China
| | - 思楣 任
- 北京医院 国家老年医学中心 国家卫生健康委员会临床检验中心 中国医学科学院老年医学研究院,北京 100730National Center for Clinical Laboratory, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing 100730, China
- 中国医学科学院北京协和医学院研究生院,北京 100730Graduate School of Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
| | - 星博 龙
- 中国医学科学院北京协和医学院研究生院,北京 100730Graduate School of Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China
- 北京医院泌尿外科,北京 100730Department of Urology, Beijing Hospital, Beijing 100730, China
| | - 雨青 田
- 北京医院 国家老年医学中心 国家卫生健康委员会北京老年医学研究所 国家卫生健康委员会北京老年医学重点实验室 中国医学科学院老年医学研究院,北京 100730The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission; Institute of Geriatric Medicine, Chinese Academy of Medical Science, Beijing 100730, China
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张 宽, 周 雨, 邵 雅, 梅 放, 由 江, 刘 北, 裴 斐. [Novel tumor metastasis suppressorgene LASS2/TMSG1 S248A mutant promotes invasion of prostate cancer cells through increasing ATP6V0C expression]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:210-220. [PMID: 30996356 PMCID: PMC7441212 DOI: 10.19723/j.issn.1671-167x.2019.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Indexed: 06/09/2023]
Abstract
OBJECTIVE LASS2/TMSG1 gene is a novel tumor metastasis suppressor gene cloned from human prostate cancer cell line PC-3M in 1999 by Department of Pathology,Peking University of Basic Medical Sciences. It was found out that protein encoded by LASS2/TMSG1 could interact with the c subunit of vacuolar-ATPase (ATP6V0C). In this study, we explored the effect of LASS2/TMSG1 and its mutants on proliferation, migration and invasion of human prostate cancer cells and its molecular mechanism. METHODS We constructed four LASS2/TMSG1 mutants and stably transfected the variants to human prostate cancer cell line PC-3M-1E8 cell with high metastatic potential. The stable transfectants were identified by qPCR and Western blot through analyzing the expression of LASS2/TMSG1 and ATP6V0C, the cell biology functions of LASS2/TMSG1 and its four mutants were studied using growth curve,MTT assay, soft agar colony formation assay, wound migration assay, Matrigel invasion study and flow cytometry. Furthermore, immunofluorescence was used to analysis the interaction of LASS2/ TMSG1 mutants and ATP6V0C. RESULTS LASS2/TMSG1 mRNA and protein in LASS2/TMSG1 group and Mut1-Mut4 groups were higher than that in Vector group; Western blot showed that ATP6V0C protein in LASS2/TMSG1 wild group was lower than that in Vector group, but ATP6V0C protein in LASS2/TMSG1 S248A group was obviously higher than that in Vector group. MTT test and growth curve assay showed growth ability in LASS2/TMSG1 S248A group was increasing compared with other groups from day 5. Soft Agar colony formation experiment showed anchor independent growth ability in LASS2/TMSG1 S248A group was higher than those in the other groups (P<0.05), Cell migrations (from 35.3%±3.2% to 70.3%±3%) in LASS2/TMSG1 S248A group was increasing compared with LASS2/TMSG1 wild group (P<0.01), and more cells passed through Matrigel in LASS2/TMSG1 S248A group compared with LASS2/TMSG1 wild group (from 50±3.2 to 203±6.5, P<0.01), the apoptosis rate in LASS2/TMSG1 S248A group was obviously higher than that in LASS2/TMSG1 wild group (from 7% to 15.1%, P<0.05), and the G0/G1 ratio in LASS2/TMSG1 S248A group was obviously higher than that in LASS2/TMSG1 wild group (from 51.0% to 85.4%). Furthermore, double immunofluorescent staining observed the colocalization between ATP6V0C and LASS2/TMSG1 protein and its mutations, the expression of ATP6V0C in LASS2/TMSG1 S248A group increased significantly compared with the other groups. CONCLUSION LASS2/TMSG1 S248A promotes proliferation, migration and invasion of prostate cancer cells through increasing ATP6V0C expression, suggesting that aa248-250 is an important function site for LASS2/TMSG1 in invasion suppression of prostate cancer cells.
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Affiliation(s)
- 宽根 张
- 北京大学基础医学院病理学系, 北京 100191Department of Pathology, Peking University School of Basic Medical Sciences, Beijing 100191China
| | - 雨禾 周
- 北京大学基础医学院病理学系, 北京 100191Department of Pathology, Peking University School of Basic Medical Sciences, Beijing 100191China
| | - 雅昆 邵
- 北京大学基础医学院病理学系, 北京 100191Department of Pathology, Peking University School of Basic Medical Sciences, Beijing 100191China
| | - 放 梅
- 北京大学基础医学院病理学系, 北京 100191Department of Pathology, Peking University School of Basic Medical Sciences, Beijing 100191China
| | - 江峰 由
- 北京大学基础医学院病理学系, 北京 100191Department of Pathology, Peking University School of Basic Medical Sciences, Beijing 100191China
| | - 北英 刘
- 北京科技大学机械学院, 北京 100083School of Mechanical Engineering, University of Science & Technology Beijing, Beijing 100083 China;
| | - 斐 裴
- 北京大学基础医学院病理学系, 北京 100191Department of Pathology, Peking University School of Basic Medical Sciences, Beijing 100191China
- 北京大学第三医院病理科, 北京 100191Department of Pathology, Peking University Third Hospital, Beijing 100191,China
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欧 艺, 姜 耀, 李 琦, 庄 永, 党 强, 谭 万. [Infiltrating mast cells promote neuroendocrine differentiation and increase docetaxel resistance of prostate cancer cells by up-regulating p21]. Nan Fang Yi Ke Da Xue Xue Bao 2018; 38:723-730. [PMID: 29997096 PMCID: PMC6765720 DOI: 10.3969/j.issn.1673-4254.2018.06.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To investigate the effect of infiltrating mast cells on neuroendocrine differentiation (NED) and docetaxel sensitivity of prostate cancer (PCa) cells in vitro. METHODS Human PCa cell lines (LNCaP and C4-2) were co-cultured with human mast cell line (HMC-1) in Transwell chambers. Androgen receptor (AR) was silenced in C4-2 cells using sh-AR lentivirus, and p21 was knocked down and overexpressed by transfecting C4-2 cells with pLKO.1-sh-p21 and pCMV-p21, respectively. The morphological changes of LNCaP and C4-2 cells were observed. MTT assay and colony formation assay were used to assess the proliferation of LNCaP and C4-2 cells. CCK8 assay was used to detect the cell viability of C4-2 cells following docetaxel trreatment. RT-qPCR and Western blotting were performed to determine the mRNA and protein expressions of neuroendocrine markers, AR and p21 in the cells. RESULTS Co-culture with HMC-1 cells enhanced the neuroendocrine phenotypes, inhibited the proliferation and up-regulated the expression of p21 in LNCaP and C4-2 cells. P21 positively regulated NED through a non-AR-dependent signaling pathway, while p21 knockdown partially reversed NED promoted by the mast cells. PCa cells co-cultured with HMC-1 cells showed increased resistance to docetaxel, and silencing p21 partially reversed docetaxel resistance in PCa cells. CONCLUSION Infiltrating mast cells up-regulates p21 to promote NED and increase docetaxel resistance in PCa cells in vitro.
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Affiliation(s)
- 艺虹 欧
- />南方医科大学南方医院泌尿外科,广东 广州 510515Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 耀东 姜
- />南方医科大学南方医院泌尿外科,广东 广州 510515Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 琦 李
- />南方医科大学南方医院泌尿外科,广东 广州 510515Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 永江 庄
- />南方医科大学南方医院泌尿外科,广东 广州 510515Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 强 党
- />南方医科大学南方医院泌尿外科,广东 广州 510515Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 万龙 谭
- />南方医科大学南方医院泌尿外科,广东 广州 510515Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Xu YW, Zheng SB, Chen BS, Wen Y, Zhu SW. [Effect of sodium phenylbutyrate on the sensitivity of PC3/DTX-resistant prostate cancer cells to docetaxel]. Nan Fang Yi Ke Da Xue Xue Bao 2018; 37:130-134. [PMID: 28109113 PMCID: PMC6765754 DOI: 10.3969/j.issn.1673-4254.2017.01.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To investigate the effect of sodium phenylbutyrate (SPB) in modulating docetaxel resistance in human prostate cancer cells in vitro. METHODS A PC3/docetaxel-resistant human prostate cancer cell line PC3/DTX was induced and examined for proliferation, viability, and cell inhibition rate in the presence of SPB. The concentration of concentration of docetaxel required to kill 50% of PC3/DTX cells incubated with 0, 1, 2, and 4 mmol/L SPB was determined using MTT assay. Cell apoptosis rate was analyzed with flow cytometry and the cellular expressions of p21, cyclin D1 and survivin proteins were detected using Western blotting. RESULTS Treatment of PC3/DTX cells with 0, 1, 2, and 4 mmol/L of SPB for 48 h resulted in cell viabilities of (99.85∓2.69)%, (84.68∓3.87)%, (68.65∓4.54)% and (43.54∓5.69)%, and cell inhibition rates of (10.69∓3.65)%, (25.78∓4.58)%, (54.68∓3.98)% and (69.84∓6.54)%, respectively (P<0.05). The concentration of docetaxel required to kill 50% of PC3/DTX cells cultured in the presence of with 0, 1, 2, and 4 mmol/L SPB was 135.98∓2.69, 109.65∓3.87, 87.65∓3.84 and 64.62∓2.98 nmol/L, respectively (P<0.05), and the cell apoptosis rates were (7.2∓0.8)%, (10.2∓0.9)%, (19.8∓2.1)% and (27.4∓2.5)%, respectively. SPB treatment promoted the protein expression of p21 and suppressed the expressions of cyclin D1 and survivin in PC3/DTX cells. CONCLUSION SPB can affect the expressions of p21, cyclin D1, and survivin in PC3/DTX cells and increase the sensitivity to the drug-resistant cells to docetaxel.
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Affiliation(s)
- Ya-Wen Xu
- Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China.E-mail:
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周 萍, 董 晓, 汤 平. [Sanggenon C induces apoptosis of prostate cancer PC3 cells by activating caspase 3 and caspase 9 pathways]. Nan Fang Yi Ke Da Xue Xue Bao 2017; 37:1206-1210. [PMID: 28951363 PMCID: PMC6765487 DOI: 10.3969/j.issn.1673-4254.2017.09.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the effects of Sanggenon C in inducing apoptosis of prostate cancer PC3 cell line and explore the underlying mechanism. METHODS The proliferation of PC3 cells treated for 24 h with 1, 5, 20, 50, and 100 µmol/L sanggenon C or treated with 20 µmol/L Sanggenon C for 0, 6, 12, 24 and 48 h was evaluated using MTT assay. Flow cytometry was performed for analysis of apoptosis of PC3 cells after exposure to sanggenon C with different treatment protocols, and the activity of caspase 3 was detected using spectrofluorometry. The inhibitory effect of sanggenon C on PC3 cells pretreated with DMSO, z-DEVD-fmk, z-LEHD-fmk or z-IETD-fmk for 1 h was detected by MTT assay. RESULTS Sanggenon C inhibited the proliferation of PC3 cells in a dose- and time-dependent manner (P<0.05 except for 1 µmol/L group) with a 24-h IC50 of 18.76 µmol/L. Sanggenon C at 20 µmol/L caused inhibition rates of PC3 cells of 10.57%, 27.09%, 51.88%, 80.73% and 87.99% after treatment for 6, 12, 24, 48, and 72 h, respectively (P<0.05), and resulted in apoptosis rates of 7.43%, 20.91% and 37.56% at 12 h, 24 h and 48 h, respectively. Sanggenon C significantly increased caspase-3 activity in the cells, and its effect on PC3 cell proliferation was partially reversed by caspase 3 and caspase 9 inhibitors. CONCLUSION Sanggenon C can dose-dependently induce growth inhibition and apoptosis of PC3 cells possibly by activating caspase 9 and caspase 3 pathways.
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Affiliation(s)
- 萍 周
- 广州医科大学 基础医学研究中心,广东 广州 511436Basic Medical Research Center, Guangzhou Medical University, Guangzhou 511436
| | - 晓先 董
- 广州医科大学 病理生理学教研室,广东 广州 511436Department of Pathophysiology, Guangzhou Medical University, Guangzhou 511436, China
| | - 平 汤
- 广州市第一人民医院泌尿外科,广东 广州 510180Department of Urology, Guangzhou First People's Hospital, Guangzhou 510180, China
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雷 李, 许 乙, 侯 美, 何 梦. [Value of PI-RADS v2 scores combined with prostate specific antigen in diagnosis of peripheral zone prostate cancer: a logistic regression analysis]. Nan Fang Yi Ke Da Xue Xue Bao 2017; 37:1092-1097. [PMID: 28801291 PMCID: PMC6765728 DOI: 10.3969/j.issn.1673-4254.2017.08.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To assess the value of Prostate Imaging and Reporting and Data System: Version 2 (PI-RADS v2) combined with prostate specific antigen (PSA) in the diagnosis of peripheral zone (PZ) prostate cancer (PCa). METHODS The preoperative magnetic resonance imaging and PSA data were ananlyzed for 69 patients with pathologically confirmed PCa and 109 non-PCa patients. PI-RADS v2 scores (1-5) was used to evaluate the risk of PZ PCa. The total PSA (tPSA) level, free to total PSA ratio (f/t PSA), PSA density (PSAD), PZ-PSAD and PI-RADS v2 scores were compared between the PCa and non-PCa patients. Logistic regression models were established with parameters that differed significantly the two groups. The receiver opearting characteristics (ROC) curve was constructed based on the P values derived from the logical regression models and PI-RADS scores to assess the diagnostic efficiency. RESULTS PI-RADS v2 score, tPSA, f/t PSA, PSAD and PZ-PSAD differed significantly between the two groups (P<0.01). Four predictive multivariate models were established: Logit P=-6.825+1.024PI-RADS v2+ 0.223tPSA (A), Logit P=-4.354+1.586PI-RADS v2-12.7841f/tPSA (B), Logit P=-8.993+1.630PI-RADS v2+17.091PSAD (C), and Logit P=-9.434+1.596PI-RADS v2+10.494PZ-PSAD (D), whose area under the ROC curves was 0.908, 0.891, 0.944, and 0.961, respectively, all significantly greater than that of PI-RADS v2 score (P<0.05). CONCLUSION Compared with PI-RADS v2 score alone, the combination of PI-RADS v2 score and PSA in the logistic regression model can improve the diagnostic efficiency of PZ PCa and offers better confidence in the decision of biopsy in suspected cases.
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Affiliation(s)
- 李智 雷
- />南方医科大学南方医院影像中心, 广东 广州 510515Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 乙凯 许
- />南方医科大学南方医院影像中心, 广东 广州 510515Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 美蓉 侯
- />南方医科大学南方医院影像中心, 广东 广州 510515Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 梦琪 何
- />南方医科大学南方医院影像中心, 广东 广州 510515Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Yin ZY, Qi SY, Cheng X, Guo L, Chen HY, Shi M. [Establishment of mouse model of bone metastasis of prostate cancer and breast cancer via femoral artery injection of tumor cells]. Nan Fang Yi Ke Da Xue Xue Bao 2017; 37:914-918. [PMID: 28736367 PMCID: PMC6765506 DOI: 10.3969/j.issn.1673-4254.2017.07.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To explore an efficient and reliable method for establishing an animal model of bone metastasis of tumors. METHODS Male C57BL/6J mice were randomized into 4 equal groups to receive injections of normal saline or prostate cancer RM-1 cell suspension via the femoral artery or the external iliac artery, and breast cancer 4T1-luc cells were injected in 15 female BALB/c mice via the femoral artery. The operation time, postoperative survival rate, and the tumor formation rates in the mice with two different injection methods were compared. The tumor metastasis in the mice was evaluated with in vivo imaging. RESULTS The mean time for hemostasis time was 2.53∓1.75 min in mice receiving tumor cell injection via the femoral artery, significantly shorter than that in mice with injections via the external iliac artery (4.70∓1.63 min; P<0.05); the mean operation time was 14.67∓2.16 min and 22.47∓3.50 min in the two groups, respectively (P<0.05). At 21 days after the operation, the survival rate was 93.3% in femoral artery injection group, significantly higher than that in external iliac artery injection group (66.7%;P<0.05). The tumor metastasis rate was 100% in both groups. CONCLUSION Injection of the tumor cells via the femoral artery is more suitable for establishing mouse models of bone metastasis of cancers.
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Affiliation(s)
- Zhao-Yang Yin
- The Health Team, Shandong Armed Police Corps Detachment of Laiwu City, Laiwu 271199, China.E-mail:
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邓 煜, 郭 凯, 曾 颖, 吴 凯, 唐 晨, 郑 少. [Effect of androgen receptor on IgG expression, proliferation and migration of prostate cancer cells in vitro]. Nan Fang Yi Ke Da Xue Xue Bao 2017; 37:388-392. [PMID: 28377358 PMCID: PMC6780428 DOI: 10.3969/j.issn.1673-4254.2017.03.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the effect of androgen receptor (AR) on IgG protein expression and the proliferation and migration of prostate cancer cells. METHODS Western blotting was used to detect the expression of AR protein and IgG in androgen-dependent prostate cancer LNCap cells and castration-resistant prostate cancer PC-3 cells. In AR-overexpressing cells (PC-3-AR cells) established by transfecting PC-3 with AR gene (pCDNA3.1) and LNCap cells with small interfering RNA-mediated AR silencing (LNCap-siAR cells) were analyzed for expressions of AR protein and IgG with Western blotting; the expression of IgG mRNA was detected by Q-PCR, and the cell proliferation and migration were assessed with MTT assay and wound healing assay, respectively. RESULTS Compared with PC-3 cells, LNCap cells expressed a higher level of AR protein and a lower level of IgG (P<0.05). PC-3-AR cells showed attenuated proliferation and migration with a lowered expression of IgG (P<0.01), while LNCap-siAR cells showed enhanced proliferation and migration with increased expression of IgG (P<0.01). CONCLUSION The expression of AR is inversely correlated with IgG and is associated with the proliferation and migration of prostate cancer cells in vitro.
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Affiliation(s)
- 煜麟 邓
- />南方医科大学珠江医院泌尿外科,广东 广州 510282Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - 凯 郭
- />南方医科大学珠江医院泌尿外科,广东 广州 510282Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - 颖科 曾
- />南方医科大学珠江医院泌尿外科,广东 广州 510282Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - 凯辉 吴
- />南方医科大学珠江医院泌尿外科,广东 广州 510282Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - 晨 唐
- />南方医科大学珠江医院泌尿外科,广东 广州 510282Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - 少波 郑
- />南方医科大学珠江医院泌尿外科,广东 广州 510282Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
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