UV-B promotes flavonoid biosynthesis in Ginkgo biloba by inducing the GbHY5-GbMYB1-GbFLS module

Ginkgo biloba(ginkgo)leaves have medicinal value due to their high levels of secondary metabolites,such as flavonoids.We found that the flavonoid content in ginkgo leaves increases significantly at high altitudes(Qinghai-Tibet Plateau).Considering that high UV-B radiation is among the key environmental characteristics of the Qinghai-Tibet Plateau,we carried out simulated UV-B treatments on ginkgo seedlings and found that the flavonoid content of the leaves increased significantly following the treatments.Combined with results from our previous studies,we determined that the transcription factor GbHY5 may play a key role in responses to UV-B radiation.Overexpression of GbHY5 significantly promoted the accumulation of flavonoids in both ginkgo callus and Arabidopsis thaliana.Furthermore,yeast two-hybrid and real-time quantitative PCR showed that GbHY5 promoted the expression of GbMYB1 by interacting with GbMYB1 protein.Overexpression of GbMYB1 in ginkgo callus and A.thaliana also significantly promoted flavonoid biosynthesis.GbFLS encodes a key enzyme in flavonoid biosynthesis,and its promoter has binding elements of GbHY5 and GbMYB1.A dual-luciferase reporter assay indicated that while GbHY5 and GbMYB1 activated the expression of GbFLS individually,their co-expression achieved greater activation.Our analyses reveal the molecular mechanisms by which the UV-B-induced GbHY5-GbMYB1-GbFLS module promotes flavonoid biosynthesis in ginkgo,and they provide insight into the use of UV-B radiation to enhance the flavonoid content of ginkgo leaves.

Industrialization Promotes Global Common Development

World history shows that industrialization has been an effective driver of economic growth through its creation of job opportunities,promotion of technological innovation,and raising of national income.

BOCOG Promotes Protection of Olympic Marks

The BOCOG promoted the protection of Olympic intellectual property rights(知识产权)by giving out leaflets(传单),showing display boards and playing promotional videos to the public at Beijing Lufthansa Friendship Shopping Mall in eastern part of Beijing on the moming of April 26, 2005. The promotional activity was jointly held by the BOCOG legal department and the Chaoyang Branch of Beijing Adminis tration of Industry and Commerce(BAIC).

YAP promotes osteogenesis and suppresses adipogenic differentiation by regulatingβ-catenin signaling

YAP（yes-associated protein） is a transcriptional factor that is negatively regulated by Hippo pathway, a conserved pathway for the development and size control of multiple organs. The exact function of YAP in bone homeostasis remains controversial. Here we provide evidence for YAP＇s function in promoting osteogenesis, suppressing adipogenesis, and thus maintaining bone homeostasis.YAP is selectively expressed in osteoblast（OB）-lineage cells. Conditionally knocking out Yap in the OB lineage in mice reduces cell proliferation and OB differentiation and increases adipocyte formation, resulting in a trabecular bone loss. Mechanistically, YAP interacts with β-catenin and is necessary for maintenance of nuclear β-catenin level and Wnt/β-catenin signaling. Expression of β-catenin in YAP-deficient BMSCs（bone marrow stromal cells） diminishes the osteogenesis deficit. These results thus identify YAP-β-catenin as an important pathway for osteogenesis during adult bone remodeling and uncover a mechanism underlying YAP regulation of bone homeostasis.

Urokinase-type plasminogen activator promotes synaptic repair in the ischemic brain

The central nervous system has a very high energy requirement. Accord- ingly, despite representing only 2% of the body＇s mass, the brain uses 20% of the total oxygen consumption. Importantly, because most of this energy is used to maintain synaptic activity, even a mild decrease in its supply to the brain has deleterious implications for synaptic function.

Interleukin-13 promotes cellular senescence through inducing mitochondrial dysfunction in IgG4-related sialadenitis

Immunoglobulin G4-related sialadenitis(IgG4-RS)is an immune-mediated fibro-inflammatory disease and the pathogenesis is still not fully understood.The aim of this study was to explore the role and mechanism of interleukin-13(IL-13)in the cellular senescence during the progress of IgG4-RS.We found that the expression of IL-13 and IL-13 receptorα1(IL-13Rα1)as well as the number of senescent cells were significantly higher in the submandibular glands(SMGs)of IgG4-RS patients.IL-13 directly induced senescence as shown by the elevated activity of senescence-associatedβ-galactosidase(SA-β-gal),the decreased cell proliferation,and the upregulation of senescence markers(p53 and p16)and senescence-associated secretory phenotype(SASP)factors(IL-1βand IL-6)in SMG-C6 cells.Mechanistically,IL-13 increased the level of phosphorylated signal transducer and activator of transcription 6(p-STAT6)and mitochondrial-reactive oxygen species(mt ROS),while decreased the mitochondrial membrane potential,ATP level,and the expression and activity of superoxide dismutase 2(SOD2).Notably,the IL-13-induced cellular senescence and mitochondrial dysfunction could be inhibited by pretreatment with either STAT6 inhibitor AS1517499 or mitochondria-targeted ROS scavenger Mito TEMPO.Moreover,IL-13 increased the interaction between p-STAT6 and c AMP-response element binding protein(CREB)-binding protein(CBP)and decreased the transcriptional activity of CREB on SOD2.Taken together,our findings revealed a critical role of IL-13 in the induction of salivary gland epithelial cell senescence through the elevated mitochondrial oxidative stress in a STAT6–CREB–SOD2-dependent pathway in IgG4-RS.

Electrical stimulation of cortical neurons promotes oligodendrocyte development and remyelination in the injured spinal cord

Background and early studies： Endogenous tri-potential neural stem cells （NSCs） exist in the adult mammalian central nervous system （CNS）. In the spinal cord, NSCs distribute throughout the entire cord, but exist predominately in white matter tracts. The phenotypic fate of these cells in white matter is glial, largely oligodendrocyte, but not neuronal.

Pro-urokinase promotes angiogenesis but does not reduce neuronal apoptosis in infarcted cerebral tissue

Ischemic stroke is most commonly caused by vascular occlusion due to thrombosis or arterial embolism. Recently, thrombolysis has been used with increasing frequency for the treatment of acute ischemic stroke. Among the drugs used for thrombolysis, only recombinant tissue plasminogen activator is widely accepted internationally （Albers et al., 2008）. In China, urokinase has been widely used for thrombolysis after acute ischemic stroke. Pro-uro- kinase is the precursor of urokinase. Compared with urokinase, pro-uroki- nase has greater ability to dissolve thrombus and is safer to use.

FAM64A promotes HNSCC tumorigenesis by mediating transcriptional autoregulation of FOXM1

Head and neck squamous cell carcinoma(HNSCC)still lacks effective targeted treatment.Therefore,exploring novel and robust molecular targets is critical for improving the clinical outcome of HNSCC.Here,we reported that the expression levels of family with sequence similarity 64,member A(FAM64A)were significantly higher in HNSCC tissues and cell lines.In addition,FAM64A overexpression was found to be strongly associated with an unfavorable prognosis of HNSCC.Both in vitro and in vivo evidence showed that FAM64A depletion suppressed the malignant activities of HNSCC cells,and vice versa.Moreover,we found that the FAM64A level was progressively increased from normal to dysplastic to cancerous tissues in a carcinogenic 4-nitroquinoline-1-oxide mouse model.Mechanistically,a physical interaction was found between FAM64A and forkhead box protein M1(FOXM1)in HNSCC cells.FAM64A promoted HNSCC tumorigenesis not only by enhancing the transcriptional activity of FOXM1,but also,more importantly,by modulating FOXM1 expression via the autoregulation loop.Furthermore,a positive correlation between FAM64A and FOXM1 was found in multiple independent cohorts.Taken together,our findings reveal a previously unknown mechanism behind the activation of FOXM1 in HNSCC,and FAM64A might be a promising molecular therapeutic target for treating HNSCC.

Decrease of Matrix Plasticity Promotes Fibroblast Activation in Fibrosis

This work identified the important role of matrix mechanical plasticity in mediating fibroblast activation.Many existing studies have highlighted the important effects of biochemical cues(e.g.,transforming growth factor-β1)and mechanicalstiffness on fibroblast activation.Our results indicated that self-assembled collagen hydrogels showed high plasticity and in which fibroblasts remain undifferentiated.However,when we decreased the plasticity of collagen hydrogels by increasing covalent crosslinking,fibroblasts showed a significant fibrotic response as reflected by the increasedα-SMA expression.Since the material systems we constructed have low and the same initial modulus,this process is stiffness independent.Although it has been reported that covalently crosslinked hydrogels are more difficult to degrade and matrix degradability has an important impact on cell behaviors,no significant changes of fibroblast activation were observed when proteases were broadly inhibited in our experiments.Importantly,the hydrogels we constructed showed similar plastic behaviors under creep and recovery tests compared to native normal and fibrotic tissues.These highlight the importance of matrix plasticity in mimicking the mechanical microenvironment of native fibrotic tissues.Mechanistically,we found that the enhanced fibroblast activation in low plastic matrix is mediated through integrin-actin pathway and nuclear localization of YAP.In high plastic collagen,matrix cannot provide effective resistance to actin contraction because of the rupture of weak crosslinks and the slippage of local fibers.On the contrary,in low plastic collagen,deformation energy can be stored in the network due to the existence of strong covalent crosslinks,thus enabling the build-up of cell traction and the formation of a robust cell-matrix interaction.Experiments of inhibiting or promoting cytoskeletal contractility and CGMD simulation both verified the above points.Our results clarify plasticity changes on the development of fibrotic diseases and highlight plasticity as an important mechanical cue in understanding cell-matrix interactions.

Immunization with Cop-1 promotes neuroprotection and neurogenesis after ischemic stroke

Cerebrovascular diseases are considered to be amongst the most serious public health issues,since they are the third leading cause of death（WHO,2014）and the most common cause of disability worldwide.Its monetary significance is evidenced by the economic burden imposed on health care systems,given that the cost of medical care for a patient that has suffered a stroke is around$25,741US dollars every 5 years（Luengo-Fernandez et al.,2012）.A stroke occurs as a result of a disturbance or interruption of cerebral blood flow that significantly reduces the supply of oxygen and glucose to the neural tissue. Consequently, several cell death mechanisms （secondary lesion mechanisms） such as necrosis, excitotoxicity, free radical production and inflammation are triggered （Castillo, 2000）.

The Bank Industry Promotes Healthy Trade Development

The world trade situation is still changing and complicated,as a wave of trade protectionism surges and regional political risks increase.Such situations have added a lot of uncertainties to the world trade and economy.How will the bank i’ndustry behave to promote globalization and the development of world trade and support world economic opening-up through the advancement of Belt and Road Initiative?

Malaysia Promotes Various Convenient Measures to Attract More Chinese Tourists——Interview with Zalizam Zakaria, Tourism Minister of Malaysia Embassy

Malaysia has many worldclass tourist spots,like Kuala Lumpur,Malacca,Pulau Langkawi and Sabah.Malaysia’s musang king is the top delicious’food for world gourmets.According to the recent data released by Malaysia’s Ministry of Tourism,China ranked the third in terms of number of tourists visiting Malaysia in 2018,with about 2.94 million tourists in all.This year marks the 45th anniversary of the establishment of diplomatic relations between China and Malaysia.

Combined treatment promotes the long-range axon regeneration to right brain targets

Axons in the peripheral nervous system(PNS)can regenerate after injury.However,the adult mammalian central nervous system(CNS)loses the intrinsic regrowth ability.No robust axon regeneration occurs spontaneously after nerve injury,which was clearly observed by Ramon y Cajal in the early 20^(th) century(1,2).Due to lack

"Sharing Economy" Promotes the Toy Rental Market

From Star Wars to My Little Pony,from Harry Potter to Bala Bala the little magic fairy,from building blocks to electric trains,the shopping list of toys is endless as there are always new products to come.As the government implements a nation-wide two-child policy,a consumption upgrade is underway,and toys become an important item

ICT Service Platform Promotes Small and Medium Enterprise Informatization

Information and Communication Technology (ICT) service platform,combined with information technology,communication technology and corresponding applications,is essential for small and medium enterprises to realize their informatization. The broadband business platform put out by China Netcom provides new generation of integrated ICT services which focus on service and would be rented to customers. Broadband business platform could satisfy varieties of informatization demands made by small and medium enterprises such as low investment,fast reaction,individuation and security. It could effectively assist small and medium enterprises to achieve informatization.

China Food Trade Promotes the Development of SIAL China

According to SIAL CHINA, the 13th China International Food and Beverages Exhibition (SIAL China 2012) will be held in Shanghai New International Expo Center On May 9, 2012. It is hosted together by COMEXPOSIUM and China Business

Acupuncture promotes repair of cerebral ischemic injury

Three articles conceming the molecular biology and proteomics study of the mechanism underlying the effects of acupuncture on the repair of cerebral ischemic injury were published in the Neural Regeneration Research. We hope that our readers find these papers useful to their research.