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https://www.readbyqxmd.com/read/29350886/the-cell-biology-and-molecular-genetics-of-m%C3%A3-llerian-duct-development
#1
REVIEW
Zahida Yesmin Roly, Brendan Backhouse, Andrew Cutting, Tiong Yang Tan, Andrew H Sinclair, Katie L Ayers, Andrew T Major, Craig A Smith
The Müllerian ducts are part of the embryonic urogenital system. They give rise to mature structures that serve a critical function in the transport and development of the oocyte and/or embryo. In most vertebrates, both sexes initially develop Müllerian ducts during embryogenesis, but they regress in males under the influence of testis-derived Anti-Müllerian Hormone (AMH). A number of regulatory factors have been shown to be essential for proper duct development, including Bmp and Wnt signaling molecules, together with homeodomain transcription factors such as PAX2 and LIM1...
January 19, 2018: Wiley Interdisciplinary Reviews. Developmental Biology
https://www.readbyqxmd.com/read/29336659/long-non-coding-rna-hotair-promotes-cervical-cancer-progression-through-regulating-bcl2-via-targeting-mir-143-3p
#2
Mingzhu Liu, Jinying Jia, Xinjie Wang, Yanjie Liu, Chunfang Wang
BACKGROUND: HOX transcript antisense RNA (HOTAIR) is a long non-coding RNA (lncRNA) widely involved in the progression of numerous malignancies. Whereas, the potential molecular mechanism of HOTAIR involved in cervical cancer progression is still needed to be elaborated. METHODS: The expression of HOTAIR and miR-143-3p were detected in cervical cancer tissues and cells by qRT-PCR. MTT and flow cytometry analysis were performed to measure cell proliferation and apoptosis...
January 16, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29323737/mir-15b-hotair-p53-form-a-regulatory-loop-that-affects-the-growth-of-glioma-cells
#3
Guan Sun, Yingyi Wang, Junxia Zhang, Ning Lin, Yongping You
Among the malignant tumors of the human central nervous system, gliomas have the highest incidence and recurrence rate. Therefore, exploration of the molecular mechanism that underlies the development and progression of gliomas is of great clinical significance. Many studies have demonstrated that long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) play important roles in the development and progression of tumors. In the present study, both an RNAhybrid analysis and a dual-luciferase reporter gene assay confirmed that microRNA-15b (miR-15b) binding sites were present in the sequence of HOX transcript antisense RNA (HOTAIR)...
January 11, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29319172/long-non-coding-rna-hotair-acts-as-a-competing-endogenous-rna-to-promote-glioma-progression-by-sponging-mir-126-5p
#4
Liang Liu, Sitong Cui, Teng Wan, Xiaojian Li, Wei Tian, Rui Zhang, Liangsheng Luo, Yan Shi
LncRNA HOX transcript antisense intergenic RNA (HOTAIR) has been shown to play prominent roles in tumorigenesis. However, its precise molecular mechanism in glioma has not been completely elucidated. In this study, we found that HOTAIR was aberrantly up-regulated in glioma tissues and was negatively correlated with miR-126-5p expression. Next, we determined that HOTAIR promote glioma progression by sponging miR-126-5p. Subsequently, glutaminase (GLS) was confirmed to be a direct target of miR-126-5p using bioinformatics software and a luciferase reporter assay...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29317537/dual-evolutionary-origin-of-insect-wings-supported-by-an-investigation-of-the-abdominal-wing-serial-homologs-in-tribolium
#5
David M Linz, Yoshinori Tomoyasu
The origin of insect wings is still a highly debated mystery in biology, despite the importance of this evolutionary innovation. There are currently two prominent, but contrasting wing origin hypotheses (the tergal origin hypothesis and the pleural origin hypothesis). Through studies in the Tribolium beetle, we have previously obtained functional evidence supporting a third hypothesis, the dual origin hypothesis. Although this hypothesis can potentially unify the two competing hypotheses, it requires further testing from various fields...
January 9, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29298397/impact-of-hotair-gene-polymorphism-and-environmental-risk-on-oral-cancer
#6
S C Su, M J Hsieh, C W Lin, C Y Chuang, Y F Liu, C M Yeh, S F Yang
Genetic and acquired factors are thought to be interrelated and imperative to estimate the risk and prognosis of oral squamous cell carcinoma (OSCC). HOX transcript antisense intergenic RNA ( HOTAIR) plays crucial roles in gene regulation and is regulated in a variety of cancers. Polymorphisms in HOTAIR have been recently linked to the predisposition to diverse malignancies. In the present study, we aimed to evaluate the influences of HOTAIR gene polymorphisms, combined with environmental triggers, on the susceptibility to oral tumorigenesis...
January 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29296870/a-knock-in-mouse-strain-facilitates-dynamic-tracking-and-enrichment-of-meis1
#7
Ping Xiang, Wei Wei, Nicole Hofs, Jack Clemans-Gibbon, Tobias Maetzig, Courteney K Lai, Ishpreet Dhillon, Christopher May, Jens Ruschmann, Edith Schneider, Patricia Rosten, Kaiji Hu, Florian Kuchenbauer, Pamela A Hoodless, R Keith Humphries
Myeloid ecotropic viral integration site 1 (MEIS1), a HOX transcription cofactor, is a critical regulator of normal hematopoiesis, and its overexpression is implicated in a wide range of leukemias. Using the clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein-9 (Cas9) gene-editing system, we generated a knock-in transgenic mouse line in which a green fluorescent protein (GFP) reporter and a hemagglutinin (HA) epitope tag are inserted near the translational start site of endogenous Meis1...
November 14, 2017: Blood Advances
https://www.readbyqxmd.com/read/29285059/long-noncoding-rna-hotair-promotes-the-proliferation-and-metastasis-of-osteosarcoma-cells-through-the-akt-mtor-signaling-pathway
#8
Enqi Li, Zhe Zhao, Baotong Ma, Jinli Zhang
It has been proven that long non-coding (lnc)RNAs serve an important role in the tumorigenesis and development of several types of human malignancy. Previous studies have demonstrated that the lncRNA Hox transcript antisense intergenic RNA (HOTAIR) is involved in the development various types of cancer, including osteosarcoma (OS). However, the underlying mechanisms by which it has an affect are still largely unknown. In the present study, it was observed that the expression of HOTAIR was significantly upregulated in OS tissues compared to matched adjacent normal tissues, using reverse transcription-quantitative polymerase chain reaction analysis...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29280051/long-non-coding-rna-linc-ror-is-upregulated-in-papillary-thyroid-carcinoma
#9
Ranran Zhang, Heather Hardin, Wei Huang, Darya Buehler, Ricardo V Lloyd
Long non-coding RNAs (lncRNAs) may contribute to carcinogenesis and tumor progression by regulating transcription and gene expression. The role of lncRNAs in the regulation of thyroid cancer progression is being extensively examined. Here, we analyzed three lncRNAs that were overexpressed in papillary thyroid carcinomas, long intergenic non-protein coding RNA, regulator of reprogramming (Linc-ROR, ROR) PVT1 oncogene (PVT1), and HOX transcript antisense intergenic RNA (HOTAIR) to determine their roles in thyroid tumor development and progression...
December 26, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/29247011/histone-demethylase-activity-of-utx-is-essential-for-viability-and-regulation-of%C3%A2-hox-gene-expression-in%C3%A2-drosophila
#10
Ömer Copur, Jürg Müller
The trimethylation of histone H3 at lysine 27 (H3K27me3) by Polycomb Repressive Complex 2 (PRC2) is essential for repression of Polycomb target genes. The role of enzymatic demethylation of H3K27me3 by the KDM6-family demethylases Utx, Uty and JmjD3 is however less clear. Studies in both mice and worms led to the proposal that KDM6 proteins but not their H3K27me3 demethylase activity is critical for normal development. Here, we investigated the requirement of the demethylase activity of the single KDM6 family member Utx in Drosophila We generated Drosophila expressing full-length but catalytic inactive Utx protein and found that these mutants show the same phenotypes like animals lacking Utx protein...
December 15, 2017: Genetics
https://www.readbyqxmd.com/read/29229759/jmjd6-induces-hotair-an-oncogenic-lincrna-by-physically-interacting-with-its-proximal-promoter
#11
Antara Biswas, Abhijith Shettar, Geetashree Mukherjee, Paturu Kondaiah, Kartiki V Desai
<span style="color: black;">Using microarray analysis we found that HOX transcript antisense intergenic RNA (HOTAIR) is upregulated by Jumonji domain containing-6 (JMJD6), a bifunctional lysyl hydroxylase and arginine demethylase. In breast cancer, JMJD6 and HOTAIR RNAs increase tumor growth and associate with poor prognosis but no molecular relationship between them is known. We show that overexpression of JMJD6 increased HOTAIR expression and JMJD6 siRNAs suppressed it in ER+ MCF-7, triple negative MDA-MB-231 and non-breast cancer HEK 293 cells...
December 11, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/29228709/targeting-lncrna-hotair-suppresses-cancer-stemness-and-metastasis-in-oral-carcinomas-stem-cells-through-modulation-of-emt
#12
Ming-Yi Lu, Yi-Wen Liao, Pei-Yin Chen, Pei-Ling Hsieh, Chih-Yuan Fang, Chia-Yu Wu, Ming-Liang Yen, Bou-Yue Peng, Dayen Peter Wang, Hsin-Chung Cheng, Ching-Zong Wu, Yung-Hsun Shih, Duen-Jeng Wang, Cheng-Chia Yu, Lo-Lin Tsai
Increasing evidence indicates that long non-coding RNAs (lncRNAs) regulate diverse cellular processes, such as cell growth, apoptosis and tumorigenesis. However, the functional roles of lncRNAs and mechanistic analysis of their interplays with oncogenic pathways in oral cancer remain largely unknown. In the current study, we examined the significance of lncRNA HOTAIR (HOX transcript antisense RNA) in tumor progression of oral squamous cell carcinomas (OSCC). We found the expression of HOTAIR was upregulated in tumor tissues, especially in the metastatic samples...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29224413/low-hox-gene-expression-in-pml-rar%C3%AE-positive-leukemia-results-from-suppressed-histone-demethylation
#13
Kateřina Rejlová, Alena Musilová, Karolina Škvárová Kramarzová, Markéta Žaliová, Karel Fišer, Meritxell Alberich-Jorda, Jan Trka, Júlia Starková
Homeobox (HOX) genes are frequently dysregulated in leukemia. Previous studies have shown that aberrant HOX gene expression accompanies leukemogenesis and affects disease progression and leukemia patient survival. Patients with acute myeloid leukemia (AML) bearing PML-RARα fusion gene has distinct HOX gene signature in comparison to other subtypes of AML patients although the mechanism of transcription regulation is not completely understood. We previously found an association between the mRNA levels of HOX genes and those of the histone demethylases JMJD3 and UTX in PML-RARα- positive leukemia patients...
December 11, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/29222472/long-noncoding-rna-hotair-modulates-mir-206-mediated-bcl-w-signaling-to-facilitate-cell-proliferation-in-breast-cancer
#14
Wei Ding, Jin Ren, Hui Ren, Dan Wang
LncRNA HOX transcript antisense RNA (HOTAIR) is involved in lots of cancers. The pro-survival protein Bcl-w is frequently found in cancer development. However, the effect of HOTAIR on Bcl-w in breast cancer is not well documented. In this study, we first evaluated the correlation between HOTAIR level and Bcl-w expression in clinical breast cancer tissues. We observed that the expression levels of Bcl-w were much higher in the breast cancer samples than that in their paired noncancerous tissues. Moreover, the levels of HOTAIR were positively associated with those of Bcl-w in clinical breast cancer samples...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29221985/hotair-mediated-reciprocal-regulation-of-ezh2-and-dnmt1-contribute-to-polyphyllin-i-inhibited-growth-of-castration-resistant-prostate-cancer-cells-in-vitro-and-in-vivo
#15
SongTao Xiang, PeiLiang Zou, Qing Tang, Fang Zheng, JingJing Wu, ZhiQiang Chen, Swei Sunny Hann
BACKGROUND: Polyphyllin I (PPI), one of the steroidal saponins in paris polyphylla, has been reported to exhibit antitumor effects. However, the detailed molecular mechanism underlying this has not been elucidated. METHODS: Cell viability and cell cycle distribution were measured using 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) and Flow cytometry assays, respectively. Cell invasion and migration were examined by Transwell invasion and wound healing assays...
December 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29221131/hoxa5-increases-mitochondrial-apoptosis-by-inhibiting-akt-mtorc1-s6k1-pathway-in-mice-white-adipocytes
#16
Fei Feng, Qian Ren, Song Wu, Muhammad Saeed, Chao Sun
Homeobox A5(Hoxa5), a member of the Hox family, plays a important role in the regulation of proliferation and apoptosis in cancer cells. The dysregulation of the adipocyte apoptosis in vivo leads to obesity and metabolic disorders. However, the effects of Hoxa5 on adipocyte apoptosis are still unknown. In this study, palmitic acid (PA) significantly increased the mRNA level of Hoxa5 and triggered white adipocyte apoptosis in vivo and in vitro. Further analysis revealed that Hoxa5 enhanced the early and late apoptotic cells and fragmentation of genomic DNA in adipocytes from inguinal white adipose tissue (iWAT) of mice...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29201179/gemcitabine-treatment-causes-resistance-and-malignancy-of-pancreatic-cancer-stem-like-cells-via-induction-of-lncrna-hotair
#17
Li Wang, Ping Dong, Weiguo Wang, Mingquan Huang, Bole Tian
Gemcitabine is the first-line chemotherapeutic agent for advanced adenocarcinoma of the pancreas, despite the high risk of chemoresistance as a major disadvantage. In the past few years, significant advances have been made in the field of pancreatic cancer stem-like cells (CSCs) and their critical roles in drug resistance, invasion and metastasis, which are tightly regulated by long non-coding RNAs (lncRNAs). The present study demonstrated that HOX antisense intergenic RNA (HOTAIR) is not different between the pancreatic cancer cell line PANC-1 and its enriched CSC sub-population...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29187810/conditional-loss-of-hoxa5-function-early-after-birth-impacts-on-expression-of-genes-with-synaptic-function
#18
Benoit Lizen, Charlotte Moens, Jinane Mouheiche, Thomas Sacré, Marie-Thérèse Ahn, Lucie Jeannotte, Ahmad Salti, Françoise Gofflot
Hoxa5 is a member of the Hox gene family that plays critical roles in successive steps of the central nervous system formation during embryonic and fetal development. In the mouse, Hoxa5 was recently shown to be expressed in the medulla oblongata and the pons from fetal stages to adulthood. In these territories, Hoxa5 transcripts are enriched in many precerebellar neurons and several nuclei involved in autonomic functions, while the HOXA5 protein is detected mainly in glutamatergic and GABAergic neurons. However, whether HOXA5 is functionally required in these neurons after birth remains unknown...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29184513/hoxa2-inhibits-bone-morphogenetic-protein-signaling-during-osteogenic-differentiation-of-the-palatal-mesenchyme
#19
Paul P R Iyyanar, Adil J Nazarali
Cleft palate is one of the most common congenital birth defects worldwide. The homeobox (Hox) family of genes are key regulators of embryogenesis, with Hoxa2 having a direct role in secondary palate development. Hoxa2-/- mice exhibit cleft palate; however, the cellular and molecular mechanisms leading to cleft palate in Hoxa2-/- mice is largely unknown. Addressing this issue, we found that Hoxa2 regulates spatial and temporal programs of osteogenic differentiation in the developing palate by inhibiting bone morphogenetic protein (BMP) signaling dependent osteoblast markers...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29180952/maintenance-of-positional-identity-of-neural-progenitors-in-the-embryonic-and-postnatal-telencephalon
#20
Ryan N Delgado, Daniel A Lim
Throughout embryonic development and into postnatal life, regionally distinct populations of neural progenitor cells (NPCs) collectively generate the many different types of neurons that underlie the complex structure and function of the adult mammalian brain. At very early stages of telencephalic development, NPCs become organized into regional domains that each produce different subsets of neurons. This positional identity of NPCs relates to the regional expression of specific, fate-determining homeodomain transcription factors...
2017: Frontiers in Molecular Neuroscience
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