The ecological environment quality is an important constraint and an optimization objective for land resource allocation.Integrating ecological service value(ESV)accounting and ecological security pattern(ESP)delineat...The ecological environment quality is an important constraint and an optimization objective for land resource allocation.Integrating ecological service value(ESV)accounting and ecological security pattern(ESP)delineation,and combining with the land use structure of 2004/2010/2016 in Ezhou City,this research laid out the urban ESP based on ESV with Net Primary Productivity(NPP),and made it as the main influence factor to simulate land use structure in 2022.The results indicated that:1)The water body has the biggest contribution to ESV,while the construction land has the minimum;2)91 ecological corridors are extracted,of which 28 were important ecological corridors;there were 36 ecological nodes extracted,including 17 important nodes;3)According to ESV,Ezhou City was divided into four security zones.The area of ecological restoration zone was the largest,and human activity core zone area was the smallest;4)In the no ESP protection scenarios and ESP protection scenarios separately,the net increase area of construction land is from 868.5 hm^(2) to 52.74 hm^(2) in the ecological core protection area;the construction land in the human activity core area has been increased by 2342.31 hm^(2) in protected scene,766.23 hm^(2) more than that of the unprotected scene.The results show that the division of security zones promoted the relocation of construction land from ecological protection core zone to human activity core zone,which can protect the ecological environment effectively,and the ESP-based simulation can provide the decision-making reference to coordinate the relationship of regional land resource allocation and the ecological environment protection.展开更多
Aberrant RNA splicing produces alternative isoforms of genes to facilitate tumor progression,yet how this process is regulated by oncogenic signal remains largely unknown.Here,we unveil that non-canonical activation o...Aberrant RNA splicing produces alternative isoforms of genes to facilitate tumor progression,yet how this process is regulated by oncogenic signal remains largely unknown.Here,we unveil that non-canonical activation of nuclear AURKA promotes an oncogenic RNA splicing of tumor suppressor RBM4 directed by m^(6)A reader YTHDC1 in lung cancer.Nuclear translocation of AURKA is a prerequisite for RNA aberrant splicing,specifically triggering RBM4 splicing from the full isoform(RBM4-FL)to the short isoform(RBM4-S)in a kinase-independent manner.展开更多
Application of differentiation therapy targeting cellular plasticity for the treatment of solid malignancies has been lagging.Nasopharyngeal carci noma(NPC)is a distinctive cancer with poor differe ntiatio n and high ...Application of differentiation therapy targeting cellular plasticity for the treatment of solid malignancies has been lagging.Nasopharyngeal carci noma(NPC)is a distinctive cancer with poor differe ntiatio n and high prevalenee of Epstein-Barr virus(EBV)infection.Here,we show that the expressi on of EBV latent protein LMP1 in duces dediffere ntiated and stem-like status with high plasticity through the transcriptional inhibition of CEBPA.Mechanistically,LMP1 upregulates STAT5A and recruits HDAC 1/2 to the CEBPA locus to reduce its histone acetylation.HDAC inhibition restored CEBPA expression,reversing cellular dedifferentiation and stem-like status in mouse xeno graft models.These fin dings provide a novel mecha nistic epigenetic-based in sight into virus-induced cellular plasticity and propose a promising concept of differentiation therapy in solid tumor by using HDAC inhibitors to target cellular plasticity.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.41871172).
文摘The ecological environment quality is an important constraint and an optimization objective for land resource allocation.Integrating ecological service value(ESV)accounting and ecological security pattern(ESP)delineation,and combining with the land use structure of 2004/2010/2016 in Ezhou City,this research laid out the urban ESP based on ESV with Net Primary Productivity(NPP),and made it as the main influence factor to simulate land use structure in 2022.The results indicated that:1)The water body has the biggest contribution to ESV,while the construction land has the minimum;2)91 ecological corridors are extracted,of which 28 were important ecological corridors;there were 36 ecological nodes extracted,including 17 important nodes;3)According to ESV,Ezhou City was divided into four security zones.The area of ecological restoration zone was the largest,and human activity core zone area was the smallest;4)In the no ESP protection scenarios and ESP protection scenarios separately,the net increase area of construction land is from 868.5 hm^(2) to 52.74 hm^(2) in the ecological core protection area;the construction land in the human activity core area has been increased by 2342.31 hm^(2) in protected scene,766.23 hm^(2) more than that of the unprotected scene.The results show that the division of security zones promoted the relocation of construction land from ecological protection core zone to human activity core zone,which can protect the ecological environment effectively,and the ESP-based simulation can provide the decision-making reference to coordinate the relationship of regional land resource allocation and the ecological environment protection.
基金We thank Quentin Liu’s lab members for their critical comments and technical support.We thank Eric W.-F.Lam for his critical reading of the manuscript and insightful suggestions.This research work was supported by the National Natural Science Foundation of China(No.81820108024 to Q.L.,No.81630005 to Q.L.,No.81830088 to Y.W.,No.81873441 to B.-L.J.,No.82103659 to S.-S.L.,No.8210113819 to Y.-F.Q.,No.81972786 to J.X.,No.82003141 to F.P.,No.82002960 to B.C.,No.31801100 to X.-.D.D.)National Key R&D Program of China(2019YFA0110300 to Q.L.and 2017YFA0505600-04 to Q.L.)+12 种基金Program for Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China(No.IRT_17R15)Innovative Research Team in University of Liaoning(No.LT2017001 to Q.L.)Heilongjiang Postdoctoral Fund(No.LBH-Z20074 to S.-S.L.)Harbin Medical University Doctor Green Seedling Ground-breaking Project(No.QMPT-1909 to S.-S.L.)the Natural Science Foundation of Liaoning(No.2019-BS-081 to F.P.)the“Seedling cultivation”program for young scientific and technological talents of Liaoning(No.LZ2020044 to F.P.,No.LZ2019067 to B.C.)Dalian Science and Technology program-The central government guiding local funding projects for scientific and technological development(2021 to F.P.)Dalian High-level Talents Innovation Support Program-Young Science and Technology Star(2021RQ004 to B.C.)the program for climbing Scholars of Liaoning,the Science and Technology Innovation Foundation of Dalian(No.2020JJ25CY008 to Q.L.)International Scientific and Technological Cooperation of Dalian(2015F11GH095 to Q.L.)the Natural Science Foundation of Guangdong(2016A030311038 and 2017A030313608 to Q.L.)the Science and Technology Planning Project of Guangzhou(No.201804020044 to Q.L.)the Scientific Research Project of Guangzhou(No.201904010492 to B.-L.J.).
文摘Aberrant RNA splicing produces alternative isoforms of genes to facilitate tumor progression,yet how this process is regulated by oncogenic signal remains largely unknown.Here,we unveil that non-canonical activation of nuclear AURKA promotes an oncogenic RNA splicing of tumor suppressor RBM4 directed by m^(6)A reader YTHDC1 in lung cancer.Nuclear translocation of AURKA is a prerequisite for RNA aberrant splicing,specifically triggering RBM4 splicing from the full isoform(RBM4-FL)to the short isoform(RBM4-S)in a kinase-independent manner.
基金supported by National Key R&D Program of China(2019YFA0110300,2017YFA0505600-04 to Q.L.)Innovative Research Team in University of Ministry of Education of China(IRT_17R15 to Q.L.)+7 种基金National Natural Science Foundation of China(81630005,81573025 to Q.L.,81773166 to Z.W.,81702683 to J.X.,81972594 to M.Y.,81402445 to C.W.,81502579 to Z.H.)Natural Science Foundation of Guangdong(2017A030313608 to Q.L,2018A0303130299,2020A1515010608 to M.Y.)the Science and Technology Planning Project of Guangzhou(201804020044 to Q.L.)the Key Project of Liaoning Natural Science Funding of China(201702031 to Q.L.)Fundamental Research Funds for the Central Universities(I9ykpy187 to M.Y.).EW-FL's work is supported by MRC(MR/N012097/1)CRUK(Al 2011)Breast Cancer Now(2012MayPR070,2012NovPhD016)the Cancer Research UK Imperial Centre,Imperial ECMC,and NIHR Imperial BRC.
文摘Application of differentiation therapy targeting cellular plasticity for the treatment of solid malignancies has been lagging.Nasopharyngeal carci noma(NPC)is a distinctive cancer with poor differe ntiatio n and high prevalenee of Epstein-Barr virus(EBV)infection.Here,we show that the expressi on of EBV latent protein LMP1 in duces dediffere ntiated and stem-like status with high plasticity through the transcriptional inhibition of CEBPA.Mechanistically,LMP1 upregulates STAT5A and recruits HDAC 1/2 to the CEBPA locus to reduce its histone acetylation.HDAC inhibition restored CEBPA expression,reversing cellular dedifferentiation and stem-like status in mouse xeno graft models.These fin dings provide a novel mecha nistic epigenetic-based in sight into virus-induced cellular plasticity and propose a promising concept of differentiation therapy in solid tumor by using HDAC inhibitors to target cellular plasticity.