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- 검색키워드
- 저자 : Qun-Ying Jin (검색결과 3 건)
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Qun-Ying Jin,Hua-Zheng Peng,Er-Pei Lin,Nan Li,Dan-Ni Huang,Yan-Li Xu,Xi-Qi Hua,Kui-Hong Wang,Tang-Jun Zhu 한국식물학회 2016 Journal of Plant Biology Vol.59 No.4
As one of the largest members of Poaceae family, bamboo is a very important agricultural plant in the world. The development of bamboo shoot is very special and particularly significant to bamboo production. Understanding the developmental differences between bamboo shoot and rhizome shoot is extremely valuable for us to further elucidate the mechanism of bamboo shoot formation since both bamboo shoot and rhizome shoot develop directly from rhizome bud underground. In this paper, miRNA chips with 413 miRNA probes were used to compare miRNA expressions between bamboo shoot and rhizome shoot. The experiment revealed 64 bamboo shoot upregulated and 56 rhizome shoot up-regulated miRNAs which were classified into four major categories according to deep sequencing based target prediction. Meristem and morphological development related miRNAs were most important in bamboo shoot, especially miR171 and miR156 members. While in rhizome shoot the mainstream of miRNA expressions was metabolism and nutrition related ones, especially miR395 members. The meristem and morphological development related miRNAs in bamboo shoot showed some embryonic characteristics and suggested the participation of several phytohormones like gibberellin, cytokinin and auxin, which were absent in those miRNAs of rhizome shoot. Further qRT-PCR detections of 21 up-regulated miRNAs in bamboo seedlings indicated that 12 ones were regulated to varying degrees by some environmental factors. Among them, rhizome shoot upregulated osa-miR395b was the most environment-sensitive miRNA, particularly to dehydration. And the bamboo shoot up-regulated osa-miR399j proved uniquely and strongly induced by phosphor. The existence of multiple regulation sites from same miRNA suggested the probability of crosstalks among meristem development, metabolism and stress response during bamboo shoot and rhizome shoot development.
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Yue Li,Jing-Ying Zhang,Xin-Yue Zhao,Li-Ya Pan,De-Hao Jin,He-Xing Xu,Hu-Zhe Cui,Yan-Qun Liu,Xiang-Zheng Qin,Qingyuan Li 대한정형외과학회 2021 Clinics in Orthopedic Surgery Vol.13 No.2
Background: The accessory tendon of the extensor hallucis longus (ATEHL) muscle is a common abnormal structure, and its clinical significance remains debatable. In this study, we provide the incidence of the ATEHL and characterize its morphological types in Asian cadavers and investigate its clinical applications. Methods: The tendons from 50 adult cadaveric feet, fixed in 10% formalin, were analyzed. We measured the length and width of both the ATEHL and the extensor hallucis brevis (EHB). Results: All dissected specimens had an ATEHL. The first metatarsophalangeal joint was surrounded by an accessory tendon that inserted onto the joint capsule and the dorsal base of the proximal phalanx. We classified the ATEHL into 3 types based on their directions. Differences in ATEHL type based on sex were not statistically significant. Conclusions: We found an ATEHL in all cadaveric specimens in this study. We surmise that the ATEHL acts as an antagonist with the EHB when the toe is extending, which might help prevent the occurrence of hallux valgus deformity.
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Mesenchymal-to-epithelial transition of osteoblasts induced by Fam20c knockout
Geng Ya-Wei,Zhang Zhen,Jin Han,Da Jun-Long,Zhang Kai,Wang Jian-Qun,Guo Yu-Yao,Zhang Bin,Li Ying 한국유전학회 2022 Genes & Genomics Vol.44 No.2
Background: Fam20c is intimately related to tissue development and diseases. At present, it has been reported that Fam20c regulates the mineralization of osteoblasts, but there are few reports on other effects. Objective: To study the effect of Fam20c on osteoblasts by knocking out the Fam20c gene. Methods: Fam20c knockout osteoblasts were constructed by transfecting mouse osteoblasts with lentivirus. The proliferation, migration and mineralization of Fam20c knockout cells were detected by CCK-8, scratch test and alizarin red staining assays. The subcellular structure was observed by transmission electron microscopy. RT-PCR was used to detect the differential expression of mesenchymal-to-epithelial transition (MET)-related marker genes and core transcription factors. The differential expression of MET-related proteins was detected by immunofluorescence or Western blot. Transcriptome analysis of Fam20c knockout osteoblasts was performed, and real-time PCR was used to verify transcriptome analysis related to MET. Results: The proliferation ability of osteoblasts was not significantly changed after Fam20c deletion, but the migration ability and mineralization ability were significantly weakened. There were tight junctions between Fam20c knockout cells. The expression of mesenchymal cell marker genes and core transcription factors was significantly decreased, and the expression of epithelial cell marker genes was significantly increased. The expression of mesenchymal cell marker proteins was significantly decreased, and the expression of epithelial cell marker proteins was significantly increased. Multiple signalling molecules and pathways involved in MET have changed. Conclusions: Knockdown of Fam20c resulted in MET. Fam20c affects the transcription of key factors in osteoblast MET.
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