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286252 occurrences (No.88 in the rank) during 5 years in the PubMed. [no cache] 500 found
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286252 occurrences (No.88 in the rank) during 5 years in the PubMed. [no cache] 500 found
| 163) Statistical analysis revealed a close association between reduced expression of Sema 3A and MelCAM with that of poor patient's survival. |
| PMID:24727891 DOI:10.1038/onc.2014.79 |
| 2015 Oncogene |
| * Semaphorin 3A upregulates FOXO 3a-dependent MelCAM expression leading to attenuation of breast tumor growth and angiogenesis. |
| - Semaphorin 3A (Sema 3A), a member of semaphorin family, serves as a guidance clue during embryonic development and is known as a candidate tumor suppressor that attenuates breast tumor progression by binding with its co-receptor, neuropilin-1 (NRP-1). However, the underlying mechanism by which Sema 3A suppresses breast tumor growth is still unexplored. In this study, we report that Sema 3A regulates phosphorylation and nuclear translocation of phosphatase and tensin homolog (PTEN) and FOXO 3a. Moreover, Sema 3A controls NRP-1-mediated PTEN-dependent FOXO 3a activation. Overexpression of PTEN and FOXO 3a enhances Sema 3A-induced attenuation of breast cancer cell migration. Chromatin immunoprecipitation and electrophoretic mobility shift assay data revealed that FOXO 3a regulates MelCAM at the transcriptional level. Furthermore, Sema 3A induces NRP-1-mediated MelCAM expression through PTEN and FOXO 3a. The data also showed that vascular endothelial growth factor-induced angiogenesis is inhibited by Sema 3A. Loss of or gain in function study revealed that Sema 3A modulates phosphorylation of PTEN and FOXO 3a and expression of MelCAM, leading to suppression of tumor growth and angiogenesis using in vivo mice model. Clinical specimen analysis revealed that reduced expression of Sema 3A and p-PTEN are correlated with enhanced breast cancer progression, further strengthening our in vitro and in vivo findings. Correlation of relapse-free survival of breast cancer patients (n=2878) with expression levels of Sema 3A, NRP-1, FOXO 3a and MelCAM were studied by Kaplan-Meier analysis. Statistical analysis revealed a close association between reduced expression of Sema 3A and MelCAM with that of poor patient's survival. Our study demonstrated a novel mechanism of regulation of tumor suppression by Sema 3A in coordination with a chain of tumor-suppressor genes, which in turn inhibits breast cancer cell migration, tumor growth and angiogenesis. |
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(44)2 cell |
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(16)3 multiple |
(30)2 P2X3 |
(45)2 constitutively |
| (3)9 genes |
(17)3 ncRAN |
(32)2 Sema |
(46)2 hyaluronan |
| (4)8 several |
(18)3 nicotine-induced |
(33)2 Siglec-9 |
(47)2 imprinted |
| (5)6 miR-218 |
(19)3 nuclear |
(34)2 TAF4 |
(48)2 intercellular |
| (6)5 these |
(20)3 specific |
(35)2 Wnt |
(49)2 membrane |
| (7)4 VEGF |
(21)3 this |
(36)2 acetyl-CoA |
(50)2 miR-128 |
| (8)4 first |
(22)2 AdipoR1 |
(37)2 adhesion |
(51)2 napsin |
| (9)4 matrix |
(23)2 Caspase |
(38)2 adiponectin |
(52)2 phosphorylated |
| (10)3 CYP1A1 |
(24)2 FBP1 |
(39)2 angiogenic |
(53)2 piRNA-823 |
| (11)3 DNMT1 |
(25)2 GABAA |
(40)2 anti-apoptotic |
(54)2 pro-inflammatory |
| (12)3 all |
(26)2 GLP-1R |
(41)2 b-FGF, |
(55)2 some |
| (13)3 cardiac |
(27)2 Ki-67, |
(42)2 c-Myc |
(56)2 three |
| (14)3 integrin |
(28)2 LOX-1 |
(43)2 cartilage |
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--- WordNet output for expression ---