Control 6 60 100 150 300
Ratio of cyclin E mRNA
0.00 0.50 1.00
Figure 50. RT-PCR analysis of cyclin E and beta-actin in human stomach cancer cell line (SC-M1) for treatment with different doses of flavone. (A) Gel electrophoresis. Lane 1:DMSO;Lane 2:6 µM;Lane 3:60
µM;Lane 4:100 µM;Lane 5:150 µM;
Lane 6:300
µM (B) The statistic figure of p21 mRNA levels. Values are mean±
SD n= 2
Cyclin E (375 bp)
β-actin (353 bp)
A.
1 2 3 4 5 6
B.
Concentration of flavone ( µM)
Control 6 60 100 150 300
Ratio of CDK2 mRNA
0.00 0.50 1.00
Figure 51. RT-PCR analysis of CDK2 and beta-actin in human stomach cancer cell line (SC-M1) for treatment with different doses of flavone. (A) Gel electrophoresis. Lane 1:DMSO;Lane 2:6 µM;Lane 3:60
µM;Lane 4:100 µM;Lane 5:150 µM;
Lane 6:300
µM (B) The statistic figure of p21 mRNA levels. Values are mean±
SD n= 2
CDK2 (330 bp)
β-actin (353 bp)
A.
1 2 3 4 5 6
B.
Concentration of flavone (µM)
Control 6 60 100 150 300
Ratio of p21 mRNA
0.00 0.50 1.00
Figure 52. RT-PCR analysis of p21 and beta-actin in human stomach cancer cell line (SC-M1) for treatment with different doses of flavone. (A) Gel electrophoresis. Lane 1:DMSO;Lane 2:6 µM;Lane 3:60
µM;Lane 4:100 µM;Lane 5:150 µM;
Lane 6:300
µM (B) The statistic figure of p21 mRNA levels. Values are mean±
SD n= 2
p21 (380 bp)
β-actin (353 bp)
A.
1 2 3 4 5 6
B.
Concentration of flavone (µM)
Control 6 60 100 150 300
Ratio of p53 mRNA
0.00 0.50 1.00
Figure 53. RT-PCR analysis of p53 and beta-actin in human stomach cancer cell line (SC-M1) for treatment with different doses of flavone. (A) Gel electrophoresis. Lane 1:DMSO;Lane 2:6 µM;Lane 3:60
µM;Lane 4:100 µM;Lane 5:150 µM;
Lane 6:300
µM (B) The statistic figure of p21 mRNA levels. Values are mean±
SD n= 2
p53 (293 bp)
β-actin (353 bp)
第三節 對人類胃癌細胞株基因表現的方面
1. 利用 DD RT-PCR 方法偵測 apigenin、17
α
-estradiol 和 flavone 對 SC-M1 細胞基 因表現的影響利用 mRNA 鑑別展示(DD RT-PCR)找出所有受藥物影響的基因接著將有差 異的 band 取下後進行核酸序列分析。如表六及表七是經 NCBI 基因庫比對之結 果。如 Figure 54 至 Figure 59 及表六結果顯示胃癌細胞受 17
α
-estradiol (E2)影響 的基因共有 32 個,有 12 個基因被誘導表現,有 20 個基因表現被抑制,其中 9 個基因是未知的。受 flavone 影響基因共有 22 個,有 5 個被誘導表現,有 17 個 基因被抑制其中有 3 個是屬於未知的基因。如 Figure 60 至 64 及表七受 apigenin 影響的基因共有 47 個基因,有 25 個被誘導表現,有 22 個基因被抑制其中有 17 個是屬於未知的基因。Figure 54. The gel electrophoresis of the products from DD RT-PCR after exposure to various doses of 17α-estradiol and flavone for treatment 24 h. Lane 1:DMSO, Lane
Figure 55. The gel electrophoresis of the products from DD RT-PCR after exposure to various doses of 17α-estradiol and flavone for treatment 24 h. Lane 1:DMSO, Lane 2:17α-estradiol 6 µM, Lane 3:17α-estradiol 60 µM, Lane 4:flavone 6 µM, Lane 5:
flavone 60 µM.
Figure 56. The gel electrophoresis of the products from DD RT-PCR after exposure to various doses of 17α-estradiol and flavone for treatment 24 h. Lane 1:DMSO, Lane 2:17α-estradiol 6 µM, Lane 3:17α-estradiol 60 µM, Lane 4:flavone 6 µM, Lane 5:
flavone60 µM.
Figure 57. The gel electrophoresis of the products from DD RT-PCR after exposure to various doses of 17α-estradiol and flavone for treatment 24 h. Lane 1:DMSO, Lane 2:17α-estradiol 6 µM, Lane 3:17α-estradiol 60 µM, Lane 4:flavone 6 µM, Lane 5:
flavone 60 µM.
Figure 58. The gel electrophoresis of the products from DD RT-PCR after exposure to various doses of 17α-estradiol and flavone for treatment 24 h. Lane 1:DMSO, Lane 2:17α-estradiol 6 µM, Lane 3:17α-estradiol 60 µM, Lane 4:flavone 6 µM, Lane 5:
Figure 59. The gel electrophoresis of the products from DD RT-PCR after exposure to various doses of 17α-estradiol and flavone for treatment 24 h. Lane 1:DMSO, Lane 2:17α-estradiol 6 µM, Lane 3:17α-estradiol 60 µM, Lane 4:flavone 6 µM, Lane 5:
flavone 60 µM.
表六:胃癌細胞受 17
α
-estradiol (E)和 flavone (F)影響的所有基因PCR No. Sequence result Induced Inhibit
1. A9a, A9b (E) Cytochrome b (Mitochondrion) + 2. A9c (E) Similared Oncostatin M receptor +
3. A10b (F) Chromodomain- helicase-DNA-binding protein
+
4. A10c (E, F) NADH dehydrogenase subunit 2 +
5.A10d (F) Homo sapiens cDNA: FLJ22135 fis, clone HEP20858
+
6.A10e (F) No-homology +
7. A10f (E, F) Cytochrome C oxidase subunit III + 8.A11a (E, F) Similar to unknow HERV-H protein +
9.C10a (F) Hypothetical protein +
10. C10b (E, F) Sodium bicarbonate cotransporter 2b +
11.C10c (F) Hypothetical protein +
12.C11a (E, F) Similar to unknow HERV-H protein +
13.C13a (E) no-homology +
14.C15b (E) no-homology +
15.C15c (F) Cytochrome c oxidase subunit I +
16.G9a (E) Cytochrome b +
17.G9b (E) Similared Oncostatin M protein + 18.G9c (E) Similared Oncostatin M protein + 19.G12a, G12d (E) Homo sapiens, clone IMAGE: 4081483,
mRNA
+
20.G12b (E) Hypothetical protein +
21.G12c (E) (homo with G12e)
Glycerol-3-phosphate dehydrogenase 2 (mitochondrial)
+
22.G12e (E) Glycerol-3-phosphate dehydrogenase 2 +
23.A74a (E) Hypothetical protein +
24.A75a (E) No-homology +
25.A78a, A78b (E, F)
Adenomatosis polyposis coli (APC) +
26.A79a (F) Chromosome 4 +
27.A79b (F) Chromosome 6q16 2-21 +
表六(續):胃癌細胞受 17
α
-estradiol (E)和 flavone (F)影響的所有基因31.C73a (F) No-homology +
32.C73b (E) Mycoplasma hyorhinis strain BTS7 16S ribosomal RNA
+
33.C73c (F) Chromosome 6q12-14.3 +
34.C74a (E) Proliferation-associated gene (peroxiredxin 1)
+
35.C74b (F) Procollagen- lysine, 2-oxoglutarate 5-dioxygenase
+
36.C75a (E) No-homology +
37.C75b (F) No-homology +
38.C75c (E) Ubiguitin protein ligase E3A +
39.C76a (E) Chromosome 19 +
43.G74a (E) Ribosomal protein L10 (hypothetical protein)
+
44.G75a (F) No-homology +
45.G75b (E) IQ motif containing GTPase activating protein 1
+
46.G75c (E) No-homology +
47.G75e (E) No-homology +
48.G75g (E) Serine (or cysteine) proteinase inhibitor (monocyte/netrophile elastase inhibitor
gene)
+
49.G78b (E, F) Human DNA sequence from clone 191J18 on chromosome 6q16.1-22.33,
complete sequence
+
50.G80a, G80b (E) ATP synthase 6 +
51G80c, G80d (E) Chromosome 13 +
Figure 60. The gel electrophoresis of the products from DD RT-PCR after exposure to various doses of apigenin for treatment 24 h. Lane 1:DMSO, Lane 2:6 µM, Lane
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3
Figure 61. The gel electrophoresis of the product from DD RT-PCR after exposure to various doses of apigenin for treatment 24 h. Lane 1:DMSO, Lane 2:6 µM, Lane 3:60 µM.
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3
Figure 62. The gel electrophoresis of the product from DD RT-PCR after exposure to
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3
Figure 63. The gel electrophoresis of the product from DD RT-PCR after exposure to various doses of apigenin for treatment 24 h. Lane 1:DMSO, Lane 2:6 µM, Lane 3:60 µM.
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3
Figure 64. The gel electrophoresis of the product from DD RT-PCR after exposure to
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3
表七:胃癌細胞受 apigenin 影響的所有基因
PCR No. Sequence result Induced Inhibited
1. A11 (i) No-homology +
2. A12 (i) Human Xq13 3’ end of PAC 92E23 containing the X inactivation transport
+
8. A74 (ii) Hypothetical protein DKFZp 761C169 +
9. A74 (iii) Chromosome 10 complete sequence +
10.A75 (i) GiGl protein or cystein-rich angiogenic inducer 61
+
11.A75 (iii) No-homology +
12.A75 (v) Similar to programmed cell death 6 or similar to probable calcium-binding
protein ALG-2
+
13.A77 (i) Hypothetical protein +
14.A78 (i) Voltage-dependent anion channel 3 +
15.A78 (ii) No-homology +
16.A78 (iii) No-homology +
17.A79 (i) Eukaryotic translation elongation factor 1 β2 → hypothetical protein
+
18.A80 (ii) Chromosome 7 +
19.C9 (i) Chromosome 14 +
20.C9 (ii) No-homology +
21.C11 (iii) TAR DNA binding protein mRNA +
22.C11 (iv) Hypothetical protein +
23.C11 (v) Hypothetical protein +
24.C11 (vi) Chromosome 19 +
25.C12 (ii) Hypothetical protein +
26.C12 (iii) No-homology +
27.C73 (i) Chromosome 6 +
28.C73 (ii) Mycoplasma hyorinis 16S ribosomal mRNA gene
+
表七(續):胃癌細胞受 apigenin 影響的所有基因
30.C75 (ii) No-homology +
31.C75 (iii) No-homology +
32.C75 (iv) Serine (orcystein) proteinase inhibitor (monocyte/netrophil elastase inhibitor)
+
33.C75 (v) Ubiquitin protein ligase E3A (Homology with C75c)
+
34.C77 (i) Highly similar to Elongation factor 1-α1 +
35.C77 (iv) Immunoglobulin (CD79A) binding protein 1
39.C79 (ii) Chromosome 4 clone C0315N08 +
40.C79 (iii) Hypothetical protein PRO2822 (PRO2822)
+
41.G12 (i) Hypothetical protein PRO2822 (chromosome 10)
+
42.G12 (ii) No-homology +
43.G13 (i) No-homology +
44.G14 (ii) Heterogeneous nuclear ribonucleoprotein H 1
+
45.G74 (i) No-homology +
46.G76 (i) Chromosome 17 +
47.G78 (i) No-homology +
2. 檢測 17
α
-estradiol 對 SC-M1 細胞的細胞膜上 Oncostatin M receptor 的影響 由 DD RT-PCR 結果 Figure 54、56 和 Table 6 發現 17α
-estradiol 可以誘導 Oncostatin M receptor 基因的表現,因此我們利用抗體檢測 17α
-estradiol 是否真的 會增加細胞膜上 Oncosatin M receptor 的表現,而結果與 DD RT-PCR 結果是相符 合。3. 加入 p38 MAPK 抑制劑 SB 203580 和 MAPK/ERK kinase I 抑制劑 PD 98059 檢測對人類胃癌細胞株 SC-M1 的存活率的影響,由 Figure 66 結果發現在有先加 入 10
µ
M SB 203580 作用 3 小時後的細胞存活率增加 6 %,因此推論 17α
-estradiol 是藉由 oncostatin M receptor 下游訊息調控路徑 p38 MAPK 來導致人類胃癌細胞 株 SC-M1 產生細胞凋亡。A. B.
C. D.
Concentration of 17 α-estradiol (µM)
Control 0.6 30 60 100 150
Concentration of estradiol (µM)
Control 6 30 60 90 150
% cells of positive for OSM receptor
0
Fig 65. The distribution of OSM receptor from SC-M1 cells that growing in the present of different doses of 17a-estradioltreatment for 24 hr. The gel electrophoresis of the products from DD RT-PCR (A) and DNA sequence (B) of oncostatin M receptor. (C) The gel electrophoresis and statistic figure of RT-PCR analysis of OSMR and beta-actin for treatment with different doses of 17α-estradiol. . Lane 1:DMSO;Lane 2:6 µM;
Lane 3:60 µM;Lane 4:100 µM;Lane 5:150 µM;Lane 6:300 µM Values are mean±
SD n= 2. (D) The data of oncostatin M receptor that was analyzed by FACS. Data were analyzed by one-way ANOVA. Value= mean± SD, n=3 *P<0.05, **P<0.005,
***P<0.001