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        Cyclic AMP Responsive Element Binding Protein 3-like 4/AarF Domain Containing Kinase 5 Axis Facilitates Proliferation, Migration and Invasion of Lung Adenocarcinoma Cells by Modulating the TGFβ Pathway

        Cheng Ai,Tenghao Rong,Zhengyu Chen,Wang Shen,Kaili Huang,Qiang Li,Jing Xiong,Wen Li 한국생물공학회 2023 Biotechnology and Bioprocess Engineering Vol.28 No.1

        Cyclic AMP responsive element binding protein 3-like 4 (CREB3L4) has been reported as a transcription factor showing high expression in various cancers, whereas the mechanism of CREB3L4 in lung adenocarcinoma (LUAD) progression remains unclear yet. Expression levels of CREB3L4 and its downstream target gene AarF Domain Containing Kinase 5 (ADCK5) in LUAD tissues were analyzed by bioinformatics methods and were detected by real-time quantitative polymerase chain reaction at cellular level. The signaling pathways in which the downregulated ADCK5 enriched were analyzed via Gene Set Enrichment Analysis. The regulatory relationship between CREB3L4 and ADCK5 was identified by ChIP and dual luciferase reporter assay. CCK-8 and colony formation assays were utilized to evaluate LUAD cell proliferation. Transwell was utilized to measure migration and invasion of LUAD cells. Western blot was employed to check expression changes of CREB3L4, ADCK5, TGFβ pathway proteins and Epithelial- Mesenchymal Transition related proteins. Compared with paracancer tissues, CREB3L4 and ADCK5 were highly expressed in LUAD tissues, while silencing CREB3L4 could dramatically hinder invasion, proliferation and migration of LUAD cells. ADCK5 was the downstream target gene of CREB3L4, and CREB3L4 promoted the transcription of ADCK5. ADCK5 was markedly enriched in the TGFβ pathway, which stimulated the malignant development of LUAD cells by activating this pathway. In addition, the rescue assay verified that CREB3L4 regulated the TGFβ pathway by activating ADCK5, thereby accelerating LUAD cell malignant phenotypes. This study revealed the mechanism of CREB3L4/ADCK5 axis facilitating malignant phenotypes of LUAD cells, and bred new insights into the LUAD treatment.

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        Mycena subpiligera sp. nov., a Symbiotic Species from China Associated with the Seed Germination of Gastrodia elata

        Li-na Liu,Guo-ying Zhou,Ai-rong Shen,Bao-ming Shen,Yun Tan,Zhu-ming Tan 한국균학회 2022 Mycobiology Vol.50 No.5

        Mycena subpiligera, a new taxon in sect. Fragilipedes that can strongly enhance the germin- ation efficiency of Gastrodia elata seeds, was discovered in subtropical areas of China. As revealed by a morphological comparison with related Mycena species as well as maximum likelihood (ML) and Bayesian phylogenetic analyses based on sequences of the internal tran- scribed spacer (ITS) and the large subunit (LSU) regions of nuclear ribosomal RNA, the new taxon can be distinguished from phenotypically similar and phylogenetically related species. Optimal cultural conditions for M. subpiligera basidiomata are reported, and the germination rate of the new species is compared with that of M. citrinomarginata.

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