keyword
MENU ▼
Read by QxMD icon Read
search

Signalling pathways

keyword
https://www.readbyqxmd.com/read/29908482/development-of-tactile-sensory-circuits-in-the-cns
#1
REVIEW
Takuji Iwasato, Reha S Erzurumlu
Molecular identification of neuronal types and genetic and imaging approaches to characterize their properties reveal morphological, physiological and dynamic aspects of sensory circuit development. Here we focus on the mouse tactile sensory circuitry, with particular emphasis on the main trigeminal pathway that connects the whiskers, the major tactile organ in rodents, to the neocortex. At each level of this pathway, neurogenesis, axonal elongation, pathfinding, target recognition and circuit reorganization including dendritic refinement of cortical layer 4 neurons occur contemporaneously and a multitude of molecular signals are used in differing combinations...
June 13, 2018: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/29908432/neochlorogenic-acid-inhibits-against-lps-activated-inflammatory-responses-through-up-regulation-of-nrf2-ho-1-and-involving-ampk-pathway
#2
Sun Young Park, Mei Ling Jin, Eun Hye Yi, Yoon Kim, Geuntae Park
Acute and chronic inflammatory diseases are associated with excessive inflammation due to the accumulation of pro-inflammatory mediators and cytokines produced by macrophages. In the present study, we investigated the anti-inflammatory properties of neochlorogenic acid (nCGA) from Lonicera japonica on lipopolysaccharide (LPS)-activated inflammation in macrophages and participation of the AMPK/Nrf2 pathway. nCGA pretreatment significantly reduced the production of nitric oxide, prostaglandin E2 , TNF-α, reactive oxygen species, IL-1β, and IL-6 by LPS-activated macrophages...
June 8, 2018: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29908368/tag-synthesis-and-storage-under-osmotic-stress-a-requirement-for-preserving-membrane-homeostasis-in-renal-cells
#3
Karen Weber, Cecilia Casali, Virginia Gaveglio, Susana Pasquaré, Emanuel Morel Gómez, Leandro Parra, Luciana Erjavec, Cecilia Perazzo, María C Fernández Tome
Hyperosmolarity is a controversial signal for renal cells. It can induce cell stress or differentiation and both require an active lipid metabolism. We showed that hyperosmolarity upregulates phospholipid (PL) de novo synthesis in renal cells. PL synthesis requires fatty acids (FA), usually stored as triglycerides (TAG). PL and TAG de novo synthesis utilize the same initial biosynthetic route: sn-glycerol 3P (G3P) → phosphatidic acid (PA) → diacylglycerol (DAG). In the present work, we evaluate how such pathway contributes to PL and TAG synthesis in renal cells subjected to hyperosmolarity...
June 13, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29908367/cell-proliferation-and-anti-apoptosis-essential-processes-for-recruitment-of-the-full-thermogenic-capacity-of-brown-adipose-tissue
#4
REVIEW
Jan Nedergaard, Yanling Wang, Barbara Cannon
In mice living under normal animal house conditions, the brown adipocytes in classical brown adipose tissue depots are already essentially fully differentiated: UCP1 mRNA and UCP1 protein levels are practically saturated. This means that any further recruitment - in response to cold exposure or any other browning agent - does not result in significant augmentation of these parameters. This may easily be construed to indicate that classical brown adipose tissue cannot be further recruited. However, this is far from the case: the capacity for further recruitment instead lies in the ability of the tissue to increase the number of brown-fat cells, a remarkable and highly controlled physiological recruitment process...
June 13, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29908321/resveratrol-reduces-senescence-associated-secretory-phenotype-by-sirt1-nf-%C3%AE%C2%BAb-pathway-in-gut-of-the-annual-fish-nothobranchius-guentheri
#5
Shan Liu, Zhaodi Zheng, Shuhua Ji, Tingting Liu, Yanhan Hou, Shasha Li, Guorong Li
Senescent cells display a senescence-associated secretory phenotype (SASP), which contributes to aging. Resveratrol, an activator of SIRT1, has anti-aging, anti-inflammatory, anti-oxidant, anti-free radical and other pharmacological effects. The genus of the annual fish Nothobranchius has become an emerging animal model for studying aging. However, the underlying mechanism for resveratrol to delay aging by SASP regulation has not been elucidated in vertebrates. In this study, the annual fish N. guentheri were fed with resveratrol for long-term treatment...
June 13, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29908295/hyperglycaemic-impairment-of-par2-mediated-vasodilation-prevention-by-inhibition-of-aortic-endothelial-sodium-glucose-co-transporter-2-and-minimizing-oxidative-stress
#6
Mahmoud El-Daly, Vivek Krishna Pulakazhi Venu, Mahmoud Saifeddine, Koichiro Mihara, Sean Kang, Paul W M Fedak, Laurie A Alston, Simon A Hirota, Hong Ding, Chris R Triggle, Morley D Hollenberg
Hyperglycaemia is a major contributor to diabetic cardiovascular disease with hyperglycaemia-induced endothelial dysfunction recognized as the initiating cause. Coagulation pathway-regulated proteinase-activated receptors (PARs) that can regulate vascular tone in vivo cause eNOS-mediated endothelium-dependent vasodilation; but, the impact of hyperglycaemia on this vasodilatory action of PAR stimulation and the signalling pathways involved are unknown. We hypothesized that vascular sodium-glucose co-transporter 2 activity and hyperglycaemia-induced oxidative stress involving Src-kinase, EGF receptor-kinase, Rho-kinase and protein-kinase-C biochemical signalling pathways would compromise PAR2-mediated endothelium-dependent vasodilation...
June 13, 2018: Vascular Pharmacology
https://www.readbyqxmd.com/read/29908283/mir-378-and-bmp-smad-can-influence-the-proliferation-of-sheep-myoblast
#7
Zengkui Lu, Lixin Du, Ruizao Liu, Ran Di, Liping Zhang, Youji Ma, Qing Li, Enmin Liu, Mingxing Chu, Caihong Wei
MicroRNA (miRNA) is a sort of endogenous ~20-25 nt non-coding RNAs, and it can regulate a variety of biological events. We found the miR-378 may involve in regulating the muscle development of sheep during our previous research. However, the molecular mechanism of miR-378 regulating myoblast proliferation is still unclear. In this research, we predicted that BMP2 (Bone morphogenetic protein 2) was the target gene of miR-378 and the BMP-Smad signal pathway that BMP2 participated in playing an important role in the muscle development...
June 13, 2018: Gene
https://www.readbyqxmd.com/read/29908281/ltbp2-knockdown-and-oxidative-stress-affect-glaucoma-features-including-tgf%C3%AE-pathways-ecm-genes-expression-and-apoptosis-in-trabecular-meshwork-cells
#8
Fatemeh Suri, Shahin Yazdani, Elahe Elahi
Glaucoma is the leading cause of irreversible blindness worldwide. Although the etiology of glaucoma is incompletely understood, it is known that the extracellular matrix (ECM) of the trabecular meshwork, oxidative stress, TGFβ signaling pathways, and apoptosis are important components of glaucoma pathogenesis. These components appear to be interrelated, but knowledge on their interactions remains incomplete. Relevant to this gap in knowledge, LTBP2, glaucoma causing gene, may also be related to the mentioned components of glaucoma pathogenesis because of its putative roles in TGFβ signaling and ECM functions...
June 13, 2018: Gene
https://www.readbyqxmd.com/read/29908259/astroglial-camp-signalling-in-space-and-time
#9
REVIEW
Anemari Horvat, Nina Vardjan
To maintain a high level of specificity and normal cell function, the cyclic adenosine monophosphate (cAMP) pathway is tightly regulated in space and time. Recent advances in cAMP reporter technology have provided insights into spatial-temporal characteristics of cAMP signalling in individual living cells, including astrocytes. Astrocytes are glial cells in the central nervous system with many homeostatic functions. In contrast to neurons, astrocytes are electrically silent, but, in response to extracellular stimuli through activation of surface receptors, they can increase intracellular levels of secondary messengers, e...
June 13, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29908210/the-tgf%C3%AE-induced-lncrna-tbila-promotes-non-small-cell-lung-cancer-progression-in-vitro-and-in-vivo-via-cis-regulating-hgal-and-activating-s100a7-jab1-signaling
#10
Zhiliang Lu, Yuan Li, Yun Che, Jianbing Huang, Shouguo Sun, Shuangshuang Mao, Yuanyuan Lei, Ning Li, Nan Sun, Jie He
Long non-coding RNAs (lncRNAs) play critical roles in multiple cellular processes in non-small cell lung cancer (NSCLC); however, the involvement of lncRNAs in the transforming growth factor-beta (TGFβ) signaling pathway, the critical tumor cell epithelial-mesenchymal transition (EMT) and metastasis pathway, remains poorly understood. To address this issue, we compared the lncRNAs expression patterns of NSCLC cells treated with and without TGFβ1 treatment. We observed that one of the most prominent hits, TGFβ-induced lncRNA (TBILA), promoted NSCLC progression and was upregulated in tumor tissues...
June 13, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29908201/back-to-homeostasis-negative-regulation-of-nf-%C3%AE%C2%BAb-immune-signaling-in-insects
#11
REVIEW
Fei Wang, Qingyou Xia
Maintenance of homeostasis requires prompt activation and down-regulation of immune signaling pathways. This review attempts to summarize our current knowledge regarding the negative regulation of two NF-κB signaling pathways in insects, Toll and IMD pathway, which are mostly essential for host defense against bacteria and fungus. Various types of negative regulators and their mechanisms are discussed here with the emphasis on the prominent roles of ubiquitination. The counterbalance between these two pathways, the crosstalk with other physiological pathways, and the difference in their repertoires of negative regulators are also discussed...
June 13, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29908183/mif-protects-against-oxygen-glucose-deprivation-induced-ototoxicity-in-hei-oc1-cochlear-cells-by-enhancement-of-akt-nrf2-ho-1-pathway
#12
Wen-Yan Zhu, Xin Jin, Yong-Chi Ma, Zhi-Biao Liu
Ischemia and oxidative stress play crucial roles in the pathophysiology of sudden sensorineural hearing loss (SSNHL). Macrophage migration inhibitory factor (MIF) is a pro-inflammatory cytokine and serves an important role in hearing function. The present study was designed to evaluate the effect of MIF on oxygen-glucose deprivation (OGD)-induced ototoxicity and to elucidate its molecular mechanism. In HEI-OC1 auditory cells, OGD reduced cell viability and increased supernatant lactate dehydrogenase (LDH) and MIF in a time-dependent manner...
June 13, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29908161/autophagy-attenuates-compression-induced-apoptosis-of-human-nucleus-pulposus-cells-via-mek-erk-nrf1-atg7-signaling-pathways-during-intervertebral-disc-degeneration
#13
Shuai Li, Wenbin Hua, Kun Wang, Yong Gao, Songfeng Chen, Wei Liu, Yu Song, Xinghuo Wu, Ji Tu, Liang Kang, Kangcheng Zhao, Liming Xiong, Yukun Zhang, Cao Yang
Autophagy dysfunction has been observed in intervertebral disc degeneration (IVDD) cells, a main contributing factor to cell death, but the precise role of autophagy during IVDD is still controversial. This study aimed to investigate the role of autophagy involved in the pathogenesis of human IVDD and determine the signal transduction pathways responsible for compression-induced autophagy in human nucleus pulposus (NP) cells. Autophagy, suppressing the induction of apoptosis, was activated in NP cells exposed to compression...
June 13, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29908120/click-reactions-with-functional-sphingolipids
#14
Julian Fink, Jürgen Seibel
Sphingolipids and glycosphingolipids can regulate cell recognition and signalling. Ceramide and sphingosine-1-phosphate are major players in the sphingolipid pathways and are involved in the initiation and regulation of signalling, apoptosis, stress responses and infection. Specific chemically synthesized sphingolipid derivatives containing small functionalities like azide or alkyne can mimic the biological properties of natural lipid species, which turns them into useful tools for the investigation of the highly complex sphingolipid metabolism by rapid and selective "click chemistry" using sensitive tags like fluorophores...
June 1, 2018: Biological Chemistry
https://www.readbyqxmd.com/read/29908087/scotostimulation-of-reproductive-neural-pathways-and-gonadal-maturation-are-not-correlated-with-hypothalamic-expression-of-deiodinases-in-subtropical-spotted-munia
#15
Ila Mishra, Neha Agarwal, Sangeeta Rani, Vinod Kumar
Circannual rhythm regulates annual timing of reproduction in spotted munia, with sex-differences in its relationship with the external photoperiod environment. Interestingly, munia show an atypical photosensitivity and exhibit gonadal maturation when acutely exposed to an unnatural short photoperiod (e.g. 3 h light per day; i.e. a long scotoperiod). The proximate mechanisms regulating scotoperiod-induced hypothalamus-pituitary-gonadal (HPG) activation are unclear. Since thyroid hormone signalling plays a central role in photoperiodic induction, we hypothesized the involvement of similar mechanism, i...
June 16, 2018: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29908067/effects-of-type-i-interferons-in-malaria
#16
REVIEW
Ismail Sebina, Ashraful Haque
Type I interferons are a family of cytokines with a wide range of biological activities including anti-viral and immune-regulatory functions. Here, we focus on the protozoan parasitic disease, malaria, and examine the effects of type I IFN-signalling during Plasmodium infection of humans and experimental mice. Since the 1960's, there have been many studies in this area, but a simple explanation for the role of type I IFN has not emerged. Although epidemiological data are consistent with roles for type I IFN in influencing malaria disease severity, functional proof of this remains sparse in humans...
June 16, 2018: Immunology
https://www.readbyqxmd.com/read/29908007/cocl-2-a-mimic-of-hypoxia-enhances-bone-marrow-mesenchymal-stem-cells-migration-and-osteogenic-differentiation-via-stat3-signaling-pathway
#17
Xin Yu, Qilong Wan, Gu Cheng, Xin Cheng, Jing Zhang, Janak L Pathak, Zubing Li
Mesenchymal stem cells homing and migration is a crucial step during bone fracture healing. Hypoxic environment in fracture site induces bone marrow mesenchymal stem cells (BMSCs) migration, but its mechanism remains unclear. Our previous study and studies by other groups have reported the involvement of signal transducer and activator of transcription 3 (STAT3) pathway in cell migration. However, the role of STAT3 pathway in hypoxia-induced cell migration is still unknown. In this study, we investigated the role of STAT3 signaling in hypoxia-induced BMSCs migration and osteogenic differentiation...
June 16, 2018: Cell Biology International
https://www.readbyqxmd.com/read/29907991/lipopolysaccharide-induced-the-proliferation-of-mouse-lung-fibroblasts-by-suppressing-foxo3a-p27-pathway
#18
Nannan Gu, Shunpeng Xing, Sihan Chen, Yuxi Zhou, Tao Jiang, Yingfu Jiao, Yuan Gao, Weifeng Yu, Zhengyu He, Daxiang Wen
Aberrant aggregation and activation of lung fibroblasts is a key process in pulmonary fibrosis, but the underlying mechanism remains enigmatic. Forkhead Box O3a (FoxO3a) is considered to be an important transcription factor that could regulate both cell cycle and cell viability. To investigate the role of FoxO3a on LPS-induced lung fibroblast proliferation, we transfected FoxO3a-SiRNA or FoxO3a-OE lentivirus into cultured mouse lung fibroblasts to knockdown or overexpress FoxO3a and pretreated mouse lung fibroblasts with gefitinib to enhance FoxO3a activity...
June 16, 2018: Cell Biology International
https://www.readbyqxmd.com/read/29907883/b-cell-development-is-critically-dependent-on-nfatc1-activity
#19
Sabrina Giampaolo, Gabriela Wójcik, Stefan Klein-Hessling, Edgar Serfling, Amiya K Patra
B cell development in bone marrow is a precisely regulated complex process. Through successive stages of differentiation, which are regulated by a multitude of signaling pathways and an array of lineage-specific transcription factors, the common lymphoid progenitors ultimately give rise to mature B cells. Similar to early thymocyte development in the thymus, early B cell development in bone marrow is critically dependent on IL-7 signaling. During this IL-7-dependent stage of differentiation, several transcription factors, such as E2A, EBF1, and Pax5, among others, play indispensable roles in B lineage specification and maintenance...
June 15, 2018: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/29907882/relevance-of-placental-type-i-interferon-beta-regulation-for-pregnancy-success
#20
Ja-Young Kwon, Paulomi Aldo, Yuan You, Jiahui Ding, Karen Racicot, Xiaoyan Dong, John Murphy, Guy Glukshtad, Michelle Silasi, Jian Peng, Li Wen, Vikki M Abrahams, Roberto Romero, Gil Mor
Pregnancy is a unique immunologic and microbial condition that requires an adequate level of awareness to provide a fast and protective response against pathogens as well as to maintain a state of tolerance to paternal antigens. Dysregulation of inflammatory pathways in the placenta triggered by pathogens is one of the main factors responsible for pregnancy complications. Type I IFNs are key molecules modulating immune responses at the level of the placenta and are crucial for protection of the pregnancy via their antiviral and immune modulatory properties...
June 15, 2018: Cellular & Molecular Immunology
keyword
keyword
13627
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"