keyword
MENU ▼
Read by QxMD icon Read
search

Tubulin

keyword
https://www.readbyqxmd.com/read/28938751/new-permeable-cryoprotectant-free-vitrification-method-for-native-human-sperm
#1
J Aizpurua, L Medrano, M Enciso, J Sarasa, A Romero, M A Fernández, M J Gómez-Torres
STUDY QUESTION: Is permeable cryoprotectant-free vitrification of native sperm samples a good alternative to conventional slow freezing? SUMMARY ANSWER: The permeable cryoprotectant-free sperm vitrification protocol tested in this study renders considerably better recovery rates of good quality sperm compared to slow freezing. WHAT IS KNOWN ALREADY: Slow freezing is currently the most commonly used technique for sperm cryopreservation, though this method has been repeatedly shown to have negative effects on both structural and functional sperm features...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938224/novel-diphenylthiazole-derivatives-with-multi-target-mechanism-synthesis-docking-study-anticancer-and-anti-inflammatory-activities
#2
Ahmed H Abdelazeem, Mohammed T El-Saadi, Eman G Said, Bahaa G M Youssif, Hany A Omar, Samir M El-Moghazy
Over the last few decades, a growing body of studies addressed the anticancer activity of NSAIDs, particularly selective COX-2 inhibitors. However, their exact molecular mechanism is still unclear and is not fully investigated. In this regard, a novel series of compounds bearing a COXs privilege scaffold, diphenyl thiazole, was synthesized and evaluated for their anticancer activity against a panel of cancer cell lines. The most active compounds 10b, 14a,b, 16a, 17a,b and 18b were evaluated in vitro for COX-1/COX-2 inhibitory activity...
September 12, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28937650/explaining-the-microtubule-energy-balance-contributions-due-to-dipole-moments-charges-van-der-waals-and-solvation-energy
#3
Ahmed Taha Ayoub, Michael Staelens, Alessio Prunotto, Marco A Deriu, Andrea Danani, Mariusz Klobukowski, Jack Adam Tuszynski
Microtubules are the main components of mitotic spindles, and are the pillars of the cellular cytoskeleton. They perform most of their cellular functions by virtue of their unique dynamic instability processes which alternate between polymerization and depolymerization phases. This in turn is driven by a precise balance between attraction and repulsion forces between the constituents of microtubules (MTs)-tubulin dimers. Therefore, it is critically important to know what contributions result in a balance of the interaction energy among tubulin dimers that make up microtubules and what interactions may tip this balance toward or away from a stable polymerized state of tubulin...
September 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28936781/coordinate-expression-of-pan-neuronal-and-functional-signature-genes-in-sympathetic-neurons
#4
U Ernsberger, M Kramer, K Tsarovina, T Deller, H Rohrer
Neuron subtypes of the mature nervous system differ in the expression of characteristic marker genes while they share the expression of generic neuronal genes. The regulatory logic that maintains subtype-specific and pan-neuronal genes is not well understood. To begin to address this issue, we analyze RNA sequencing results from whole sympathetic ganglia and single sympathetic neurons in the mouse. We focus on gene products involved in the neuronal cytoskeleton, neurotransmitter synthesis and storage, transmitter release and reception and electrical information processing...
September 21, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28935703/hdac3-promotes-meiotic-apparatus-assembly-in-mouse-oocytes-via-modulating-tubulin-acetylation
#5
Xiaoyan Li, Xiaohui Liu, Min Gao, Longsen Han, Danhong Qiu, Haichao Wang, Bo Xiong, Shao-Chen Sun, Honglin Liu, Ling Gu
Histone deacetylases (HDACs) have been shown to deacetylate numerous cellular substrates that govern a wide array of biological processes. HDAC3, a member of the Class I HDACs, is a highly conserved and ubiquitously expressed protein. However, its roles in meiotic oocytes are currently unknown. In the present study, we find that mouse oocytes depleted of HDAC3 are unable to completely progress through meiosis, blocking at metaphase I. These HDAC3-knockdown (HDAC3-KD) oocytes show spindle/chromosome organization failure, with severely impaired kinetochore-microtubule attachments...
September 21, 2017: Development
https://www.readbyqxmd.com/read/28935574/taurocholate-induces-biliary-differentiation-of-liver-progenitor-cells-causing-hepatic-stellate-cell-chemotaxis-in-the-ductular-reaction-role-in-pediatric-cystic-fibrosis-liver-disease
#6
Katarzyna N Pozniak, Michael A Pearen, Tamara N Pereira, Cynthia Sm Kramer, Priyakshi Kalita-De Croft, Sujeevi K Nawaratna, Manuel A Fernandez-Rojo, Geoffrey N Gobert, Janina Ee Tirnitz-Parker, John K Olynyk, Ross W Shepherd, Peter J Lewindon, Grant A Ramm
Cystic fibrosis liver disease (CFLD) in children causes progressive fibrosis leading to biliary cirrhosis, however its cause(s) and early pathogenesis are unclear. We hypothesised that a bile acid-induced Ductular Reaction (DR) drives fibrogenesis. We evaluated the DR by cytokeratin-7 immunohistochemistry in liver biopsies, staged for fibrosis, from 60 children with CFLD and demonstrated that the DR was significantly correlated with hepatic fibrosis stage and biliary taurocholate levels. To examine the mechanisms involved in DR induction liver progenitor cells (LPCs) were treated with taurocholate and key events in DR evolution were assessed: LPC proliferation, LPC biliary differentiation and hepatic stellate cell (HSC) chemotaxis...
September 18, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28934593/big-lessons-from-little-yeast-budding-and-fission-yeast-centrosome-structure-duplication-and-function
#7
Ann M Cavanaugh, Sue L Jaspersen
Centrosomes are a functionally conserved feature of eukaryotic cells that play an important role in cell division. The conserved γ-tubulin complex organizes spindle and astral microtubules, which, in turn, separate replicated chromosomes accurately into daughter cells. Like DNA, centrosomes are duplicated once each cell cycle. Although in some cell types it is possible for cell division to occur in the absence of centrosomes, these divisions typically result in defects in chromosome number and stability. In singlecelled organisms such as fungi, centrosomes [known as spindle pole bodies (SPBs)] are essential for cell division...
September 15, 2017: Annual Review of Genetics
https://www.readbyqxmd.com/read/28933823/two-color-810-nm-sted-nanoscopy-of-living-cells-with-endogenous-snap-tagged-fusion-proteins
#8
Alexey N Butkevich, Haisen Ta, Michael Ratz, Stefan Stold, Stefan Jakobs, Vladimir N Belov, Stefan W Hell
A 810 nm STED nanoscopy setup and an appropriate combination of two fluorescent dyes (Si-rhodamine 680SiR and carbopyronine 610CP) have been developed for near-IR live-cell superresolution imaging. Vimentin endogenously tagged using the CRISPR/Cas9 approach with the SNAP-tag, together with a non-covalent tubulin label, provided reliable and cell-to-cell reproducible dual-color confocal and STED imaging of the cytoskeleton in living cells.
September 21, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28933593/dynein-promotes-porcine-oocyte-meiotic-progression-by-maintaining-cytoskeletal-structures-and-cortical-granule-arrangement
#9
Yilong Miao, Changyin Zhou, Zhaokang Cui, Liansheng Tang, Xiayan ShiYang, Yajuan Lu, Mianqun Zhang, Xiaoxin Dai, Bo Xiong
Cytoplasmic dynein is a family of cytoskeletal motor proteins that move towards the minus-end of the microtubules to perform functions in a variety of mitotic processes such as cargo transport, organelle positioning, chromosome movement and centrosome assembly. However, its specific roles during mammalian oocyte meiosis have not been fully defined. Herein, we investigated the critical events during porcine oocyte meiotic maturation after inhibition of dynein by Ciliobrevin D treatment. We found that oocyte meiotic progression was arrested when inhibited of dynein by showing the poor expansion of cumulus cells and decreased rate of polar body extrusion...
September 21, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28933048/delta-9-tetrahydrocannabinol-%C3%A2-9-thc-induce-neurogenesis-and-improve-cognitive-performances-of-male-sprague-dawley-rats
#10
Noor Azuin Suliman, Che Norma Mat Taib, Mohamad Aris Mohd Moklas, Rusliza Basir
Neurogenesis is influenced by various external factors such as enriched environments. Some researchers had postulated that neurogenesis has contributed to the hippocampal learning and memory. This project was designed to observe the effect of Delta-9-tetrahydrocannabinol (∆(9)-THC) in cognitive performance that influenced by the neurogenesis. Different doses of ∆(9)-THC were used for observing the neurogenesis mechanism occurs in the hippocampus of rats. The brains were stained with antibodies, namely BrdU, glial fibrillary acidic protein (GFAP), nestin, doublecortin (DCX) and class III β-tubulin (TuJ-1)...
September 21, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28932862/tailored-release-of-triiodothyronine-and-retinoic-acid-from-a-spatio-temporally-fabricated-nanofiber-composite-instigating-neuronal-differentiation
#11
Aishwarya Satish, Purna Sai Korrapati
Regeneration of the central and peripheral nervous system is challenging since the functional restoration of injured nerves is an incredible task. The fabrication of an ideal nerve guide that fulfills the requirement to regenerate nerve tissue is a herculean challenge requiring a combination of both biochemical and topographical cues. The present study explores the combinatorial effect of aligned nanofibers and the regulated delivery of triiodothyronine and retinoic acid on nerve regeneration. A sequential release mechanism is adopted in fabricating the nanofiber scaffold, with triiodothyronine incorporated into the nanofiber shell ensuring its prior release, followed by retinoic acid (entrapped within zein nanoparticles) from the core...
September 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28931885/design-synthesis-and-structure-activity-relationship-of-3-6-diaryl-7h-1-2-4-triazolo-3-4-b-1-3-4-thiadiazines-as-novel-tubulin-inhibitors
#12
Qile Xu, Kai Bao, Maolin Sun, Jingwen Xu, Yueting Wang, Haiqiu Tian, Daiying Zuo, Qi Guan, Yingliang Wu, Weige Zhang
A novel series of 3,6-diaryl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazines were designed, synthesized and biologically evaluated as vinylogous CA-4 analogues, which involved a rigid [1,2,4]triazolo[3,4-b][1,3,4]thiadiazine scaffold to fix the configuration of (Z,E)-butadiene linker of A-ring and B-ring. Among these rigidly vinylogous CA-4 analogues, compounds 4d, 5b, 5i, 6c, 6e, 6g, 6i and 6k showed excellent antiproliferative activities against SGC-7901, A549 and HT-1080 cell lines with IC50 values at the nanomolar level...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931065/chlamydomonas-fap265-is-a-tubulin-polymerization-promoting-protein-essential-for-flagellar-reassembly-and-hatching-of-daughter-cells-from-the-sporangium
#13
Damayanti Tammana, Trinadh Venkata Satish Tammana
Tubulin polymerization promoting proteins (TPPPs) belong to a family of neomorphic moon lighting proteins, involved in various physiological and pathological conditions. In physiological conditions, TPPPs play an important role in microtubule dynamics regulating mitotic spindle assembly and in turn cell proliferation. In pathological situations, TPPPs interact with α-synuclein and β-amyloid and promote their aggregation leading to Parkinson's disease and multiple system atrophy. Orthologs of TPPP family proteins were identified in ciliary proteomes from various organisms including Chlamydomonas but their role in ciliogenesis was not known...
2017: PloS One
https://www.readbyqxmd.com/read/28931012/cbta-toxin-of-escherichia-coli-inhibits-cell-division-and-cell-elongation-via-direct-and-independent-interactions-with-ftsz-and-mreb
#14
Danielle M Heller, Mrinalini Tavag, Ann Hochschild
The toxin components of toxin-antitoxin modules, found in bacterial plasmids, phages, and chromosomes, typically target a single macromolecule to interfere with an essential cellular process. An apparent exception is the chromosomally encoded toxin component of the E. coli CbtA/CbeA toxin-antitoxin module, which can inhibit both cell division and cell elongation. A small protein of only 124 amino acids, CbtA, was previously proposed to interact with both FtsZ, a tubulin homolog that is essential for cell division, and MreB, an actin homolog that is essential for cell elongation...
September 20, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28930974/procedure-and-key-optimization-strategies-for-an-automated-capillary-electrophoretic-based-immunoassay-method
#15
Gail M Nelson, Jenna M Guynn, Brian N Chorley
New technologies that utilize capillary-based immunoassays promise faster and more quantitative protein assessment compared to traditional immunoassays. However, similar to other antibody-based protein assays, optimization of capillary-based immunoassay parameters, such as protein concentration, antibody dilution, and exposure time is an important prerequisite to the generation of meaningful and reliable data. Measurements must fall within the linear range of the assay where changes in signal are directly proportional to changes in lysate concentration...
September 10, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28929799/tubulin-inhibitors-targeting-the-colchicine-binding-site-a-perspective-of-privileged-structures
#16
Wenlong Li, Honghao Sun, Shengtao Xu, Zheying Zhu, Jinyi Xu
The vital roles of microtubule in mitosis and cell division make it an attractive target for antitumor therapy. Colchicine binding site of tubulin is one of the most important pockets that have been focused on to design tubulin-destabilizing agents. Over the past few years, a large number of colchicine binding site inhibitors (CBSIs) have been developed inspired by natural products or synthetic origins, and many moieties frequently used in these CBSIs are structurally in common. In this review, we will classify the CBSIs into classical CBSIs and nonclassical CBSIs according to their spatial conformations and binding modes with tubulin, and highlight the privileged structures from these CBSIs in the development of tubulin inhibitors targeting the colchicine binding site...
September 20, 2017: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/28928125/ck2%C3%AE-critically-regulates-thrombopoiesis-and-ca-2-triggered-platelet-activation-in-arterial-thrombosis-in-vivo
#17
Patrick Münzer, Britta Walker-Allgaier, Sascha Geue, Friederike Langhauser, Eva Geuss, David Stegner, Katja Aurbach, Daniela Semeniak, Madhumita Chatterjee, Irene Gonzalez Menendez, Melanie Märklin, Leticia Quintanilla-Martinez, Helmut R Salih, David W Litchfield, Thierry Buchou, Christoph Kleinschnitz, Florian Lang, Bernhard Nieswandt, Irina Pleines, Harald Schulze, Meinrad Gawaz, Oliver Borst
Platelets, anucleated megakaryocyte-derived cells, play a major role in hemostasis and arterial thrombosis. While protein kinase Casein Kinase 2 (CK2) is readily detected in megakaryocytes and platelets, the impact of CK2-dependent signaling on megakaryocyte/platelet (patho-) physiology has remained elusive. The present study explored the impact of the CK2 regulatory β-subunit on platelet biogenesis and activation. Megakaryocyte/platelet-specific genetic deletion of CK2β (ck2β(-/-) ) in mice resulted in a significant macrothrombocytopenia and an increased extramedullar megakaryopoiesis with enhanced proportion of premature platelets...
September 19, 2017: Blood
https://www.readbyqxmd.com/read/28928040/p-3f-a-microtubule-polymerization-inhibitor-enhances-p53-stability-through-the-change-in-localization-of-rps27a
#18
Huai Wang, Jiang Feng, Tong Zhou, Lijun Wei, Jianming Zhou
Previously, we demonstrated that P-3F, a podophyllum derivative, exhibits a 297-fold enhancement in antitumor activity than VP-16, used as anticancer agent in clinical. The purpose of our present study was to investigate the precise antitumor mechanism action of P-3F. It showed that P-3F inhibited microtubule polymerization in a concentration-dependent manner. The results were in overall agreement with modeling and docking studies performed on P-3F and tubulin. In addition, P-3F increased the levels of P53, this in turn prolonged P53 half-life...
September 16, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28927861/primary-cilia-formation-is-diminished-in-schizophrenia-and-bipolar-disorder-a-possible-marker-for-these-psychiatric-diseases
#19
Jesús Muñoz-Estrada, Alejandra Lora-Castellanos, Isaura Meza, Salvador Alarcón Elizalde, Gloria Benítez-King
Primary cilium (PC) is a microtubule-rich organelle that protrudes from the plasma membrane and acts as a cellular antenna sensing extracellular signals during brain development. DISC1 (Disrupted-in-Schizophrenia-1) is involved in PC formation and is considered a risk factor for neuropsychiatric disorders. We have previously described altered subcellular distribution of DISC1 and an aberrant microtubule organization in olfactory neuronal precursors (ONP) obtained from schizophrenia (SCZ) and bipolar disorder (BD) patients...
September 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28927239/tubulins-rhythms-and-cell-walls-in-poplar-leaves-it-s-all-in-the-timing
#20
Scott A Harding, Hao Hu, Batbayar Nyamdari, Liang-Jiao Xue, Radnaa Naran, Chung-Jui Tsai
Plant cell walls exhibit architectural and compositional changes throughout their development and in response to external cues. While tubulins are involved in cell wall biogenesis, much remains unknown about the scope of their involvement during the orchestration of this resource-demanding process. A transgenic approach coupled with cell wall compositional analysis, RNA-seq and mining of publicly available diurnal gene expression data was used to assess the involvement of tubulins in poplar leaf cell wall biogenesis...
September 12, 2017: Tree Physiology
keyword
keyword
26428
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"