Browsing by Author "Hsu, Kung-Hao"

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DELETERIOUS EFFECTS OF ARSENIC, BENOMYL AND CARBENDAZIM ON HUMAN ENDOMETRIAL CELL PROLIFERATION IN VITRO
(2010-12-01)
Chang, Chi-Chen
;
Hsieh, Yao-Yuan
;
Hsu, Kung-Hao
;
Tsai, Horng-Der
;
Lin, Wen-Hsin
Objective: We aimed to investigate the effects of arsenic (As), benomyl (Ben), and carbendazim (Carb) on endometrial cells. Materials and Methods: Human endometrial cells were obtained during diagnostic curettage. All cultured endometrial cells were divided into four groups: (1) 0 M (controls), (2) 10(-6)M, (3) 10(-5)M, (4) 10(-4)M for As, Ben and Carb. After 24 and 48 hours in culture, endometrial cell proliferations were assessed by diphenyltetrazolium bromide assay. The influences of different concentrations of As, Ben and Garb upon the endometrium were compared. Results: During the first 24 hours, As, Ben and Garb appeared to have insignificant influences upon endometrial growth. After 48 hours in culture, all three agents significantly inhibited endometrial growth. In As groups, cell absorption after 48 hours culture were 100% (group 1), 82.1% (group 2), 43.6% (group 3) and 35.3% (group 4). In Ben groups, cell absorption was 100% (1), 75.9% (2), 66.4% (3) and 49.6% (4). In the Carb groups, cell absorption was 100% (1), 70.4% (2), 73.0% (3) and 76.7% (4). Conclusion: The agents As, Ben and Carb appear to have inhibitory effects upon endometrial cells after 48 hours in culture. [Taiwan J Obstet Gynecol 2010;49(4):449-454]
Effects of alpha and beta recombinant FSH (Gonal-F, Puregon) and progesterone upon human endometrial cell proliferation in-vitro: a preliminary study
(2011-02-01)
Chang, Chi-Chen
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Hsieh, Yao-Yuan
;
Hsu, Kung-Hao
;
Lin, Chih-Sheng
;
生物科技學系
Endometrial proliferation or regeneration during menstrual cycle is regulated by sexual hormones. However, the effect of gonadotrophins on the endometrial cell growth remains obscure. Herein, we aimed to investigate the effects of r-FSH (Gonal-F, Puregon) and progesterone on the proliferation of human endometrial cells in-vitro. According as gonadotrophin concentrations, the follicular-phase endometrial cells were divided into six groups: (1) 0 (controls), (2) 1; (3) 10; (4) 100; (5) 1000; (6) 100,000 mu IU/ml. The cell countings with microscopy and cell proliferation kit assay were used to assess the endometrial cell proliferations. In Gonal-F groups, the cell absorptions (%) after 24/48 h culture were: (1) 100/100; (2) 103.8/102.3; (3) 104.8/102.8; (4) 102.3/101.3; (5) 96.3/94.2; (6) 86.8/84.3. In Puregon groups, the cell absorptions were: (1) 100/100; (2) 102.8/101.9; (3) 103/102.3; (4) 103.9/103.5; (5) 102.9/102.4; (6) 103.7/103.2 (non-different). In progesterone groups, the cell absorptions were: (1) 100/100; (2) 99.1/101.9; (3) 83.5/80.4; (4) 80.7/82.4. Higher dosage of Gonal-F (100,000 mu IU/ml) and progesterone (10, 100 mu g/ml) appeared the significant inhibition upon endometrium. We conclude that lower dosages of Gonal-F, Puregon, and progesterone appear the non-significant influence upon endometrium. Higher dosage of Gonal-F (10,000 mu IU/ml) and progesterone (10, 100 mu g/ml), but not Puregon, might interfere with the endometrial proliferation during follicular phase.
Effects of gonadotropins (Gonal-F and Puregon) on human endometrial cell proliferation in vitro
(2011-03-01)
Chang, Chi-Chen
;
Hsieh, Yao-Yuan
;
Hsu, Kung-Hao
;
Lin, Chih-Sheng
;
生物科技學系
Condensation: Both Gonal-F and Puregon, especially in their high-dosage administration, might inhibit the endometrial cell proliferation in the initial 48-hour culture. After 72-hour culture, Gonal-F persisted the inhibition of the endometrial growth, whereas Puregon reversed its effect to enhance endometrial growth. Objectives: Endometrial proliferation or regeneration during menstrual cycle is regulated by sexual hormones. However, the effect of gonadotropins on the endometrial cell growth remains obscure. Herein, we aimed to investigate the effects of recombinant follicle-stimulating hormones (r-FSHs) (Gonal-F and Puregon) on the proliferation of human endometrial cells in vitro. Materials and Methods: Human endometrial cells (RL95-2 cells) were obtained commercially and cultured in the serum-containing media in the presence of r-FSHs (Gonal-F and Puregon at concentrations of 0 mIU/mL, 200 mIU/mL, 400 mIU/mL, and 600 mIU/mL) up to 72 hours. According to the gonadotropin concentrations, all cultured endometrial cells were divided into four groups: (1) 0 mIU/mL (control); (2) 200 mIU/mL; (3) 400 mIU/mL; and (4) 600 mIU/mL. After 72-hour culture, endometrial cell proliferations were assessed overnight by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. The influences of different r-FSH agents and dosages on endometrial cell proliferation in each group were evaluated and compared. Results: In the four Gonal-F groups, the cell absorption (control and 200 mIU/mL, 400 mIU/mL, and 600 mIU/mL Gonal-F) after 24/48/72-hour cultures were as follows: (1) 0.57/0.7/0.82; (2) 0.56/0.66/0.78; (3) 0.55/0.64/0.77: and (4) 0.51/0.61/0.78. After 48 hours, higher dosage of Gonal-F appeared to significantly inhibit the endometrial cell proliferation. After 72-hour culture, all three dosages of Gonal-F appeared to inhibit the endometrial cell proliferation similarly. In Puregon groups, the cell absorptions were as follows: (1) 0.62/0.53/0.62; (2) 0.61/0.5/0.66; (3) 0.61/0.49/0.66; and (4) 0.64/0.49/0.66. Puregon administration displayed initial inhibition and subsequent stimulation effects on the endometrial cells. Conclusions: Both Gonal-F and Puregon, especially in their high-dosage administration, appeared to inhibit the endometrial cell proliferation in the initial 48-hour culture. After 72-hour culture, Gonal-F persisted the inhibition of the endometrium, whereas Puregon reversed its effect by enhancing the endometrial growth. The differences might be because of the different formulations or molecular structures existing between alpha and beta follitropins. Copyright (C) 2011, Taiwan Association of Obstetrics & Gynecology. Published by Elsevier Taiwan LLC. All rights reserved.
Human lymphocyte antigen B-associated transcript 2, 3, and 5 polymorphisms and haplotypes are associated with susceptibility of Kawasaki disease and coronary artery aneurysm (vol 24, pg 262, 2010)
(2011)
Hsieh, Yao-Yuan
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Lin, Ying-Ju
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Chang, Chi-Chen
;
Chen, Da-Yuan
;
Hsu, Chin-Mu
Identification of novel peptides specifically binding to endometriosis by screening phage-displaying peptide libraries
(2009-12-01)
Chang, Chi-Chen
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Hsieh, Yao-Yuan
;
Wang, Yu-Kuo
;
Hsu, Kung-Hao
;
Tsai, Horng-Der
Objective: To search for novel peptides and common binding motif that specifically bind to endometriosis. Design: Prospective study. Setting: Department of Biological Science and Technology in national university. Patient(s): Specimens were divided into [1] ectopic endometrium (n = 10); [2] eutopic endometrium (n = 10). Intervention(s): Peptides specifically binding to endometriosis are screened from a phage-displaying peptide library (Ph.D.-12) by using whole-cell screening technique after an adsorption elution amplification procedure. Main Outcome Measure(s): Combinatorial peptide libraries were used to identify small molecules that bind with high affinity to receptor molecules and mimic the interaction with natural ligands. Few pans of positive phage clones with significantly positive signals were identified by ELISA and analyzed by DNA sequencing. Result(s): During the biopanning processes, the recovered phage number (10(6) pfu/mL) in parts 1, 2, 3, 4, and 5 of the study were 9, 33, 82, 142, and 169. Nine phages consistently had residue Arg, whereas six clones had a consensus motif of Arg-X-Arg-X-X-X-X-Arg. The biotin-labeled peptide bound to endometriosis cells in a dose-dependent manner, yet the control peptide revealed lesser binding activity. Conclusion(s): The novel motif is associated with higher affinity of endometriosis, which might be useful in endometriosis targeting and as potential antiendometriosis therapies. We provide one potential approach for novel therapies toward endometriosis. (Fertil Steril (R) 2009;92:1850-5. (C)2009 by American Society for Reproductive Medicine.)
Insulin-like Growth Factors II exon 9 and E-cadherin-Pml I but not Myeloperoxidase Promoter-463, Urokinase-ApaL I nor Xeroderma Pigmentosum Polymorphisms Are Associated with Higher Susceptibility to Leiomyoma
(2010-06-01)
Hsieh, Yao-Yuan
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Chang, Chi-Chen
;
Wang, Yu-Kuo
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Hsu, Kung-Hao
;
Chen, Chih-Ping
Objectives: To investigate the roles of insulin-like growth factor II (IGF2), myeloperoxidase (MPO), E-cadherin (CDH1), urokinase and xeroderma pigmentosum group A and D (XPA, XPD) polymorphisms upon leiomyoma susceptibility. Study Design: Women were divided into: group I, leiomyoma (n=158); group 2, non-leiomyoma (n=156). Polymorphisms (IGF2 exon 9*A/G, MPO-463*A/G, CDH1-Pml I, urokinase-ApaL, XPA*A-23G, XPD*Lys751Gln) were amplified by polymerase chain reaction and detected by electrophoresis after restriction enzyme digestion. Genotype and allelic frequencies were compared between both groups. Results: Associations between leiomyoma with IGF2 and CDH1 polymorphism exist. Proportions of IGF2 exon 9*AA/AG/GG in and CDH1* CC/CT/TT in the groups were: group I, 38/39.2/22.8% and 27.8/66.5/5.7%; group 2, 22.4/53.9/23.7% and 21.2/64.1/14.7. MPO, urokinase, XPA and XPD in both groups were non-significantly different. Proportions of MPO*AA/AG/GG, urokinase*CC/CT/TT, XPA*AA/AG/GG and XPD*AA/AC/CC were: group 1: 1.9/23.4/74.7%, 0.6/7/92.4%, 20.9/55.1/24%, 85.4/14.6/0%; group 2: 3.8/24.4/71.8%, 1.3/4.5/94.2%, 22.4/53.9/23.7%, 84.6/15.4/0%. Conclusion: IGF2*A allele and CDH1*C allele were correlated with leiomyoma susceptibility, which may be associated with leiomyoma development. MPO, urokinase, XPA and XPD polymorphisms are not related to leiomyoma susceptibilities.