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Boosting synergism of chemo- and immunotherapies via switching paclitaxel-induced apoptosis to mevalonate metabolism-triggered ferroptosis by bisphosphonate coordination lipid nanogranules

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Acta Pharmaceutica Sinica B 2024年第2期14卷 836-853页

作者： Ge Song Minghui Li Shumin Fan Mengmeng Qin Bin Shao Wenbing Dai Hua Zhang Xueqing Wang Bing He Qiang Zhang Beijing Key Laboratory of molecular Pharmaceutics and New Drug Delivery Systems School of Pharmaceutical SciencesPeking UniversityBeijing 100191China State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical SciencesPeking UniversityBeijing 100191China department of Medical oncology Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education)Peking University Cancer HospitalBeijing 100142China

Conventional chemotherapy based on cytotoxic drugs is facing tough challenges recently following the advances of monoclonal antibodies and molecularly targeted drugs.It is critical to inspire new potential to remodel the value of this classical therapeutic strategy.Here,we fabricate bisphosphonate coordination lipid nanogranules(BC-LNPs)and load paclitaxel(PTX)to boost the chemo-and immuno-therapeutic synergism of cytotoxic drugs.Alendronate in BC-LNPs@PTX,a bisphosphonate to block mevalonate metabolism,works as both the structure and drug constituent in nanogranules,where alendronate coordinated with calcium ions to form the particle core.The synergy of alendronate enhances the efficacy of paclitaxel,suppresses tumor metastasis,and alters the cytotoxic mechanism.Differing from the paclitaxel-induced apoptosis,the involvement of alendronate inhibits the mevalonate metabolism,changes the mitochondrial morphology,disturbs the redox homeostasis,and causes theaccumulation of mitochondrial ROS and lethal lipid peroxides(LPO).These factors finally trigger the ferroptosis of tumor cells,an immunogenic cell death mode,which remodels the suppressive tumor immune microenvironment and synergizes with immunotherapy.Therefore,by switching paclitaxel-induced apoptosis to mevalonate metabolism-triggered ferroptosis,BC-LNPs@PTX provides new insight into the development of cytotoxic drugs and highlights the potential of metabolism regulation in cancer therapy.

关键词： Bisphosphonate coordinationlipid nanogranules Ferroptosis Mevalonatemetabolism Mitochondrial metabolism Nano-systematic biology

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Targeted anti-tumor synergistic effects of Myc decoy oligodeoxynucleotides-loaded selenium nanostructure combined with chemoradiotherapy on LNCaP prostate cancer cells

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oncology Research 2024年第1期32卷 101-125页

作者： ROGHAYEH GHORBANI MAHMOUD GHARBAVI ALI SHARAFI ELHAM RISMANI HAMED REZAEEJAM YOUSEF MORTAZAVI BEHROOZ JOHARI department of Medical Biotechnology School of MedicineZanjan University of Medical SciencesZanjanIran Nanotechnology Research Center Ahvaz Jundishapur University of Medical SciencesAhvazIran Zanjan Pharmaceutical Biotechnology Research Center Zanjan University of Medical SciencesZanjanIran department of Pharmaceutical Biotechnology School of PharmacyZanjan University of Medical SciencesZanjanIran molecular Medicine department Biotechnology Research CenterPasteur Institute of IranPasteur AvenueTehranIran department of Radiology Technology School of Allied Medical SciencesZanjan University of Medical SciencesZanjanIran

In the present study,we investigated the synergistic effects of targeted methotrexate-selenium nanostructure containing Myc decoy oligodeoxynucleotides along with X-irradiation exposure as a combination therapy on LNCaP prostate cancer cells.Myc decoy ODNs were designed based on the promoter of Bcl-2 gene and analyzed by molecular docking and molecular dynamics assays.ODNs were loaded on the synthesized Se@BSA@Chi-MTX nanostructure.The physicochemical characteristics of nanostructures were determined by FTIR,DLS,UV-vis,TEM,EDX,in vitro release,and hemolysis tests.Subsequently,the cytotoxicity properties of them with and without X-irradiation were investigated by uptake,MTT,cell cycle,apoptosis,and scratch assays on the LNCaP cell line.The results of DLS and TEM showed negative charge(−9 mV)and nanometer size(40 nm)for Se@BSA@Chi-DEC-MTX NPs,respectively.The results of FTIR,UV-vis,and EDX showed the proper interaction of different parts and the correct synthesis of nanoparticles.The results of hemolysis showed the hemocompatibility of this nanoparticle in concentrations less than 6 mg/mL.The ODNs release from the nanostructures showed a pH-dependent manner,and the release rate was 15%higher in acidic pH.The targeted Se@BSA@Chi-labeled ODN-MTX NPs were efficiently taken up by LNCaP cells by targeting the prostate-specific membrane antigen(PSMA).The significant synergistic effects of nanostructure(containing MTX drug)treatment along with X-irradiation showed cell growth inhibition,apoptosis induction(~57%),cell cycle arrest(G2/M phase),and migration inhibition(up to 90%)compared to the control.The results suggested that the Se@BSA@Chi-DEC-MTX NPs can potentially suppress the cell growth of LNCaP cells.This nanostructure system can be a promising approach for targeted drug delivery and chemoradiotherapy in prostate cancer treatment.

关键词： Chemoradiotherapy Combination therapy Decoy oligodeoxynucleotides Myc transcription factor Selenium nanoparticle Prostate cancer

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New perspectives on biology,disease progression,and therapy response of head and neck cancer gained from single cell RNA sequencing and spatial transcriptomics

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oncology Research 2024年第1期32卷 1-17页

作者： GERWIN HELLER THORSTEN FUEREDER ALEXANDER MICHAEL GRANDITS ROTRAUD WIESER Division of oncology Department of Medicine IMedical University of ViennaVienna1090Austria Ludwig Boltzmann Institute for Hematology and oncology Medical University of ViennaVienna1090Austria

Head and neck squamous cell carcinoma(HNSCC)is one of the most frequent cancers worldwide.The main risk factors are consumption of tobacco products and alcohol,as well as infection with human papilloma virus.Approved therapeutic options comprise surgery,radiation,chemotherapy,targeted therapy through epidermal growth factor receptor inhibition,and immunotherapy,but outcome has remained unsatisfactory due to recurrence rates of~50%and the frequent occurrence of second primaries.The availability of the human genome sequence at the beginning of the millennium heralded the omics era,in which rapid technological progress has advanced our knowledge of the molecular biology of malignant diseases,including HNSCC,at an unprecedented pace.Initially,microarray-based methods,followed by approaches based on next-generation sequencing,were applied to study the genetics,epigenetics,and gene expression patterns of bulk tumors.More recently,the advent of single-cell RNA sequencing(scRNAseq)and spatial transcriptomics methods has facilitated the investigation of the heterogeneity between and within different cell populations in the tumor microenvironment(e.g.,cancer cells,fibroblasts,immune cells,endothelial cells),led to the discovery of novel cell types,and advanced the discovery of cell-cell communication within tumors.This review provides an overview of scRNAseq,spatial transcriptomics,and the associated bioinformatics methods,and summarizes how their application has promoted our understanding of the emergence,composition,progression,and therapy responsiveness of,and intercellular signaling within,HNSCC.

关键词： Head and neck squamous cell carcinoma Tumor microenvironment Immunotherapy Gene expression Omics

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Consensus of Chinese experts on glioma multidisciplinary team management (2nd edition)

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中华医学杂志(英文版) 2024年第11期137卷 1267-1270页

作者： Wu Jinsong Zhou Zhirui Wu Zanyi Tang Zhiwei Li Ming Yin Siyuan Luo Xufei Wang Ling Chen Yaolong Zhao Guoguang Jiang Tao Mao Ying The National Glioma MDT Alliance of National Center for Neurological Diseases department of Neurosurgery Beijing Tiantan Hospital Capital Medical University Beijing China department of Neurosurgery Huashan Hospital Shanghai Medical College Fudan University Shanghai China department of radiation oncology Huashan Hospital Shanghai Medical College Fudan University Shanghai China department of Neurosurgery The First Affiliated Hospital of Fujian Medical University Fuzhou Fujian China Neurosurgery department The First Affiliated Hospital of Kunming Medical University Kunming Yunnan China department of Neurosurgery Henan Provincial People’s Hospital People’s Hospital of Zhengzhou University Zhengzhou Henan China State Key Laboratory of Pharmaceutical Biotechnology Institute for Brain Sciences Advanced Institute for Life Sciences School of Life Sciences Nanjing University Nanjing Jiangsu China Evidence-Based Medicine Center School of Basic Medical Sciences Lanzhou University Lanzhou Gansu China School of Public Health Lanzhou University Lanzhou Gansu China department of Neurosurgery Xuanwu Hospital Capital Medical University Beijing China

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Targeting proprotein convertase subtilisin/kexin type 9(PCSK9):from bench to bedside

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Signal Transduction and Targeted Therapy 2024年第2期9卷 509-557页

作者： Xuhui Bao Yongjun Liang Hanman Chang Tianji Cai Baijie Feng Konstantin Gordon Yuekun Zhu Hailian Shi Yundong He Liyi Xie Institute of Therapeutic Cancer Vaccines Fudan University Pudong Medical CenterShanghaiChina Shanghai Key Laboratory of Regulatory Biology School of Life SciencesEast China Normal UniversityShanghaiChina department of oncology Fudan University Pudong Medical CenterShanghaiChina Center for Clinical Research Fudan University Pudong Medical CenterShanghaiChina Clinical Research Center for Cell-based Immunotherapy Fudan UniversityShanghaiChina department of Pathology Duke University Medical CenterDurhamNCUSA Center for Medical Research and Innovation Fudan University Pudong Medical CenterShanghaiChina Institute for Food Safety and Health Illinois Institute of TechnologyChicagoILUSA department of Sociology University of MacaoTaipaMacaoChina Medical Institute Peoples’Friendship University of RussiaMoscowRussia A.Tsyb Medical Radiological Research Center ObninskRussia department of Colorectal Surgery The First Affiliated Hospital of Harbin Medical UniversityHarbinHeilongjiangChina Shanghai Key Laboratory of Compound Chinese Medicines Institute of Chinese Materia MedicaShanghai University of Traditional Chinese MedicineZhangjiang Hi-tech ParkShanghaiChina department of radiation oncology Fudan University Shanghai Cancer CenterShanghaiChina department of oncology Shanghai Medical CollegeFudan UniversityShanghaiChina

Proprotein convertase subtilisin/kexin type 9(PCSK9)has evolved as a pivotal enzyme in lipid metabolism and a revolutionary therapeutic target for hypercholesterolemia and its related cardiovascular diseases(CVD).This comprehensive review delineates the intricate roles and wide-ranging implications of PCSK9,extending beyond CVD to emphasize its significance in diverse physiological and pathological states,including liver diseases,infectious diseases,autoimmune disorders,and notably,cancer.Our exploration offers insights into the interaction between PCSK9 and low-density lipoprotein receptors(LDLRs),elucidating its substantial impact on cholesterol homeostasis and cardiovascular health.It also details the evolution of PCSK9-targeted therapies,translating foundational bench discoveries into bedside applications for optimized patient care.The advent and clinical approval of innovative PCSK9 inhibitory therapies(PCSK9-iTs),including three monoclonal antibodies(Evolocumab,Alirocumab,and Tafolecimab)and one small interfering RNA(siRNA,Inclisiran),have marked a significant breakthrough in cardiovascular medicine.These therapies have demonstrated unparalleled efficacy in mitigating hypercholesterolemia,reducing cardiovascular risks,and have showcased profound value in clinical applications,offering novel therapeutic avenues and a promising future in personalized medicine for cardiovascular disorders.Furthermore,emerging research,inclusive of our findings,unveils PCSK9’s potential role as a pivotal indicator for cancer prognosis and its prospective application as a transformative target for cancer treatment.This review also highlights PCSK9’s aberrant expression in various cancer forms,its association with cancer prognosis,and its crucial roles in carcinogenesis and cancer immunity.In conclusion,this synthesized review integrates existing knowledge and novel insights on PCSK9,providing a holistic perspective on its transformative impact in reshaping therapeutic paradigms across various disorders.It emphasizes the clinical

关键词： PCSK9 metabolism convert

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Hydrophobic long-chain two-dimensional perovskite scintillators for underwater X-ray imaging

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Rare Metals 2024年第1期43卷 175-185页

作者： Jin-Xiao Zheng Zi-An Zhou Tiao Feng Hui Li Cheng-Hua Sun NüWang Yang Tian Yong Zhao Shu-Yun Zhou Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of sciences Beijing 100049China Laboratory of Bioinspired Smart Interfacial Science and Technology of the Ministry of Education Beijing Key Laboratory of Bioinspired Energy Materials and DevicesSchool of ChemistryBeijing Advanced Innovation Center for Biomedical EngineeringBeihang UniversityBeijing 100191China department of Engineering Physics Tsinghua University and Key Laboratory of Particle and Radiation Imaging Ministry of EducationTsinghua UniversityBeijing 100084China e-mail:yangt@***

The underwater X-ray imaging technology development is significant to subaqueous target reconnaissance/detection/identification, subfluvial archaeology,submerged resource exploration, etc. As the core of X-ray imaging detection, the scintillator has been plagued by inherent moisture absorption and decomposition, and strict requirements for seamless packaging and waterproofing.Here, we designed a manganese-doped two-dimensional(2D) perovskite scintillator modified by hydrophobic longchain organic amine through the combination of component and doping engineering. The modified perovskites show high water repellency that can be used as an underwater X-ray scintillator. X-ray images of aquatic organisms or other objects with a high spatial resolution of10 lp·mm^(-1) at a big view field(32 mm × 32 mm) were obtained by scintillation screen. This hydrophobic perovskite scintillator based on molecular design is of great promise in underwater X-ray nondestructive testing technology development.

关键词： Two-dimensional perovskite Hydrophobic Scintillators Underwater X-ray imaging Underwater nondestructive testing technology

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Immunostimulatory gene therapy combined with checkpoint blockade reshapes tumor microenvironment and enhances ovarian cancer immunotherapy

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Acta Pharmaceutica Sinica B 2024年第2期14卷 854-868页

作者： Yunzhu Lin Xiang Wang Shi He Zhongxin Duan Yunchu Zhang Xiaodong Sun Yuzhu Hu Yuanyuan Zhang Zhiyong Qian Xiang Gao Zhirong Zhang Key Laboratory of Drug Targeting and Drug Delivery Systems Ministry of EducationWest China School of PharmacySichuan UniversityChengdu 610041China department of Pharmacy Evidence-based Pharmacy CenterWest China Second University HospitalKey Laboratory of Birth Defects and Related Diseases of Women and ChildrenSichuan UniversityChengdu 610041China department of Neurosurgery and Institute of Neurosurgery State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengdu 610041China department of radiation oncology State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengdu 610041China West China School of Basic Medical sciences&Forensic Medicine Sichuan UniversityChengdu 610041China

Immune evasion has made ovarian cancer notorious for its refractory features, making the development of immunotherapy highly appealing to ovarian cancer treatment. The immune-stimulating cytokine IL-12 exhibits excellent antitumor activities. However, IL-12 can induce IFN-γ release and subsequently upregulate PDL-1 expression on tumor cells. Therefore, the tumor-targeting folate-modified delivery system F-DPC is constructed for concurrent delivery of IL-12 encoding gene and small molecular PDL-1 inhibitor(i PDL-1) to reduce immune escape and boost anti-tumor immunity. The physicochemical characteristics, gene transfection efficiency of the F-DPC nanoparticles in ovarian cancer cells are analyzed. The immune-modulation effects of combination therapy on different immune cells are also studied. Results show that compared with non-folate-modified vector, folate-modified F-DPC can improve the targeting of ovarian cancer and enhance the transfection efficiency of p IL-12. The underlying anti-tumor mechanisms include the regulation of T cells proliferation and activation, NK activation,macrophage polarization and DC maturation. The F-DPC/p IL-12/i PDL-1 complexes have shown outstanding antitumor effects and low toxicity in peritoneal model of ovarian cancer in mice. Taken together, our work provides new insights into ovarian cancer immunotherapy. Novel F-DPC/p IL-12/i PDL-1 complexes are revealed to exert prominent anti-tumor effect by modulating tumor immune microenvironment and preventing immune escape and might be a promising treatment option for ovarian cancer treatment.

关键词： IL-12encodinggene Checkpointblocker Nanoparticles Targeted delivery Tumormicroenvironment Immune escape Ovarian cancer Immunotherapy

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5-Fluorouracil dose escalation generated desensitized colorectal cancer cells with reduced expression of protein methyltransferases and no epithelial-to-mesenchymal transition potential

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oncology Research 2024年第6期32卷 1047-1061页

作者： KIMBERLY FENECH ISAAC MICALLEF BYRON BARON Centre for molecular Medicine and Biobanking University of MaltaMsidaMSD 2080Malta department of Tumor Genetics and Biology Graduate School of Medical SciencesFaculty of Life SciencesKumamoto UniversityKumamoto860-8556Japan

Background:Colorectal cancer(CRC)is one of the most frequently diagnosed cancers.In many cases,the poor prognosis of advanced CRC is associated with resistance to treatment with chemotherapeutic drugs such as 5-Fluorouracil(5-FU).The epithelial-to-mesenchymal transition(EMT)and dysregulation in protein methylation are two mechanisms associated with chemoresistance in many cancers.This study looked into the effect of 5-FU dose escalation on EMT and protein methylation in CRC.Materials and Methods:HCT-116,Caco-2,and DLD-1 CRC cell lines were exposed to dose escalation treatment of 5-FU.The motility and invasive potentials of the cells before and after treatment with 5-FU were investigated through wound healing and invasion assays.This was followed by aWestern blot which analyzed the protein expressions of the epithelial marker E-cadherin,mesenchymal marker vimentin,and the EMT transcription factor(EMTTF),the snail family transcriptional repressor 1(Snail)in the parental and desensitized cells.Western blotting was also conducted to study the protein expressions of the protein methyltransferases(PMTs),Euchromatic histone lysine methyltransferase 2(EHMT2/G9A),protein arginine methyltransferase(PRMT5),and SET domain containing 7/9(SETD7/9)along with the global lysine and arginine methylation profiles.Results:The dose escalation method generated 5-FU desensitized CRC cells with distinct morphological features and increased tolerance to high doses of 5-FU.The 5-FU desensitized cells experienced a decrease in migration and invasion when compared to the parental cells.This was reflected in the observed reduction in E-cadherin,vimentin,and Snail in the desensitized cell lines.Additionally,the protein expressions of EHMT2/G9A,PRMT5,and SETD7/9 also decreased in the desensitized cells and global protein lysine and arginine methylation became dysregulated with 5-FU treatment.Conclusion:This study showed that continuous,dose-escalation treatment of 5-FU in CRC cells generated 5-FU desensitized cancer cells that seemed to be les

关键词： Chemoresistance Epithelial-to-mesenchymal transition Protein methylation Protein methyltransferases

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CSCO guidelines for colorectal cancer version 2024: Updates and discussions

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Chinese Journal of Cancer Research 2024年第3期36卷 233-239页

作者： Liubo Chen Hanguang Hu Ying Yuan Shanshan Weng department of Medical oncology(Key Laboratory of Cancer Prevention and Intervention China National Ministry of Education Key Laboratory of Molecular Biology in Medical Sciences Zhejiang Province China) the Second Affiliated Hospital Zhejiang University School of Medicine Zhejiang Provincial Clinical Research Center for CANCER Cancer Center Zhejiang University

According to the latest global cancer statistics, colorectal cancer(CRC) is the most common malignancy of the digestive system and the second most lethal among all cancer types(1). In China, CRC is the second most prevalent cancer, following only after lung cancer(2). The first version of the Chinese Society of Clinical oncology(CSCO) guideline was launched in 2017 and has been updated annually based on the latest findings of clinical research, drug accessibility and expert consensus(3-8).

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Confined Mn^(2+) enables effective aerobic oxidation catalysis

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Science China Chemistry 2024年第5期67卷 1545-1553页

作者： Desheng Yuan Sicong Ma Xiao Kong Chi Zhang Lin Chen Chengsheng Yang Lihua Wang Zhen Liu Lin Ye Yongmei Liu Rui Ma Zhi-Pan Liu Yifeng Zhu Yong Cao Xinhe Bao department of Chemical Physics University of Science and Technology of ChinaHefei 230026China department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsCollaborative Innovation Center of Chemistry for Energy MaterialsFudan UniversityShanghai 200438China Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China School of Materials and Chemistry University of Shanghai for Science and TechnologyShanghai 200093China Shanghai Synchrotron radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China Institute of Advanced Fluorine-Containing Materials Zhejiang Normal UniversityJinhua 321004China State Key Laboratory of Catalysis National Laboratory for Clean EnergyCollaborative Innovation Center of Chemistry for Energy MaterialsDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China

Effective and mild activation of O_(2) is essential but challenging for aerobic oxidation. In heterogeneous catalysis, high-valence manganese oxide(e.g., +4) is known to be active for the oxidation, whereas divalent MnO is ineffective due to its limited capacity to supply surface oxygen and its thermodynamically unstable structure when binding O_(2) in reaction conditions. Inspired by natural enzymes that rely on divalent Mn^(2+), we discovered that confining Mn^(2+) onto the Mn_(2)O_(3) surface through a dedicated calcination process creates highly active catalysts for the aerobic oxidation of 5-hydroxymethylfurfural, benzyl alcohol, and CO.The Mn_(2)O_(3)-confined Mn^(2+) is undercoordinated and efficiently mediates O_(2) activation, resulting in 2–3 orders of magnitude higher activity than Mn_(2)O_(3) alone. Through low-temperature infrared spectroscopy, we distinguished low-content Mn^(2+) sites at Mn_(2)O_(3) surface, which are difficult to be differentiated by X-ray photoelectron spectroscopy. The combination of in-situ energydispersive X-ray absorption spectroscopy and X-ray diffraction further provides insights into the formation of the newly identified active Mn^(2+) sites. By optimizing the calcination step, we were able to increase the catalytic activity threefold further.The finding offers promising frontiers for exploring active oxidation catalysts by utilizing the confinement of Mn^(2+)and oftenignored calcination skills.

关键词： confinement catalysis manganese oxide aerobic oxidation divalent Mn^(2+) operando spectroscopies

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