67 results match your criteria: "Shanghai Institute of Materia Medica Chinese Academy of Sciences[Affiliation]"

Objectives: To evaluate the manufacturability, efficacy and safety of allogeneic CD19 chimeric antigen receptor double-negative T cells (CD19-CAR-DNTs) as an off-the-shelf therapeutic cell product.

Methods: A membrane proteome array was used to assess the off-target binding of CD19-CAR. DNTs derived from healthy donors were transduced with lentiviral vectors encoding the CD19-CAR.

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Agonists of the stimulator of interferon genes (STING) pathway are increasingly being recognized as a promising new approach in the treatment of cancer. Although progress in clinical trials for STING agonists in antitumor applications has been slow, there is still an urgent need for developing new potent STING agonists with versatile potential applications. Herein, we developed and identified a non-nucleotide STING agonist called DW18343.

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New Arylalkenyl α-Pyrones from Cryptocarya densiflora.

Chem Biodivers

December 2024

Shanghai Institute of Materia Medica CAS: Shanghai Institute of Materia Medica Chinese Academy of Sciences, State Key Laboratory od Drug Research, 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, 201203, shanghai, CHINA.

Article Synopsis
  • Four new compounds called crydensiones A‒D (1‒4) were discovered in the twigs and leaves of the plant Cryptocarya densiflora.
  • Their structures were identified using advanced methods like spectroscopy and quantum chemical calculations, including electronic circular dichroism (ECD) and nuclear magnetic resonance (NMR).
  • None of the isolated compounds showed significant cytotoxic effects against various cancer cell lines (colon, lung, and breast) in the tests conducted.
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Enhanced Antitumor Immunity of a Globo H-Based Vaccine Enabled by the Combination Adjuvants of 3D-MPL and QS-21.

Angew Chem Int Ed Engl

December 2024

Shanghai Institute of Materia Medica Chinese Academy of Sciences, Carbohydrate-Based Drug Research Center, 555 Zu-Chong-Zhi Road, 201203, Shanghai, CHINA.

Globo H, a specific carbohydrate antigen overexpressed on various human malignancies, has attracted considerable interest as an antigenic target for anticancer vaccine development. Despite several Globo H-based carbohydrate vaccines that have been designed, efficient access to Globo H hexasaccharide antigen and development of powerful adjuvants for enhancing antitumor immunity remain challenging. Herein, we reported a streamlined chemoenzymatic approach to prepare this hexasaccharide antigen, relying on chemical synthesis of Gb5 pentasaccharide by a stereoconvergent [2+3] strategy and subsequent enzymatic α-fucosylation to easily install α1,2-fucose residue.

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MicroRNAs (miRNAs) are critical regulators in various biological processes to cleave or repress translation of messenger RNAs (mRNAs). Accurately predicting miRNA targets is essential for developing miRNA-based therapies for diseases such as cancer and cardiovascular disease. Traditional miRNA target prediction methods often struggle due to incomplete knowledge of miRNA-target interactions and lack interpretability.

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Polymethoxylated flavones for modulating signaling pathways in inflammation.

Int Immunopharmacol

December 2024

State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. Electronic address:

Aberrant signaling pathways play a crucial role in the pathogenesis of various diseases, including inflammatory disorders and autoimmune conditions. Polymethoxylated flavones (PMFs), a class of natural compounds found in citrus fruits, have obtained increasing attention for their potential therapeutic effects in modulating inflammatory responses. Although significant progress has been made in the pharmacological research of PMFs, the mechanisms by which they modulate signaling pathways to treat inflammation have not been systematically reviewed or analyzed.

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Herein a catalyst-free solvent-controlled method for the divergent synthesis of spirocyclopropyl and spiropyrazoline oxindoles from 3-ylideneoxindoles and ethyl diazoacetate was developed. With ClCHCHCl as the solvent, spirocyclopropyl oxindoles were obtained in moderate to excellent yields, whereas the use of MeOH as solvent afforded spiropyrazoline oxindoles in moderate to good yields. The readily available substrates, simple operation and various product transformations further highlighted the utility of this method.

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Article Synopsis
  • Mitochondria play a crucial role in cell function and are linked to various diseases, leading to the development of targeted imaging and treatment strategies.
  • Theranostics combines diagnosis and therapy in a single agent, simplifying treatment and improving drug evaluation by focusing on mitochondria-specific interventions.
  • Recent advancements in mitochondria-targeting theranostic materials have been summarized, highlighting their design and effectiveness in localized disease treatment and diagnosis.
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off-target profiling for enhanced drug safety assessment.

Acta Pharm Sin B

July 2024

Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica Chinese Academy of Sciences, Shanghai 201203, China.

Ensuring drug safety in the early stages of drug development is crucial to avoid costly failures in subsequent phases. However, the economic burden associated with detecting drug off-targets and potential side effects through safety screening and animal testing is substantial. Drug off-target interactions, along with the adverse drug reactions they induce, are significant factors affecting drug safety.

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Mitogen-activated protein kinase-activated protein kinase 2 (MK2) emerges as a pivotal target in developing anti-cancer therapies. The limitations of ATP-competitive inhibitors, due to insufficient potency and selectivity, underscore the urgent need for a covalent irreversible MK2 inhibitor. Our initial analyses of The Cancer Genome Atlas database revealed MK2's overexpression across various cancer types, especially those characterized by inflammation, linking it to poor prognosis and highlighting its significance.

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Article Synopsis
  • - mRNA therapeutics are gaining traction in cancer immunotherapy due to their effectiveness in producing a wide range of proteins, including mutant neo-antigens, that can stimulate T cells to fight tumors.
  • - Advanced techniques like in vitro transcription allow for the quick synthesis of pure mRNA, but challenges remain in delivering this mRNA to target cells effectively and ensuring it escapes endosomes after delivery.
  • - New strategies to improve mRNA cancer therapies focus on modifying mRNA structures and enhancing delivery systems, particularly through lipid nanoparticles, to address current limitations and boost clinical application prospects.
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Neuroanatomical tract tracers are important for studying axoplasmic transport and the complex interconnections of the nervous system. Though traditional fluorescent tracers are widely used, they have several prominent drawbacks when imaging, including low resolutions and low tissue penetrations and inability to be supervised dynamically within a long peripheral nerve during the long term. Here, we explored the potential of ICG as a neural tracer for axoplasmic transport and for the first time demonstrated that ICG could be used to detect transport function within peripheral nerve by near-infrared region II (NIR-II) imaging.

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Proteolysis-targeting chimera (PROTAC) is a powerful technology that can effectively trigger the degradation of target proteins. The intricate interplay among various factors leads to a heterogeneous drug response, bringing about significant challenges in comprehending drug mechanisms. Our study applied data-independent acquisition-based mass spectrometry to multidimensional proteome profiling of PROTAC (DIA-MPP) to uncover the efficacy and sensitivity of the PROTAC compound.

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Enhancing cancer treatment efficacy remains a significant challenge in human health. Immunotherapy has witnessed considerable success in recent years as a treatment for tumors. However, due to the heterogeneity of diseases, only a fraction of patients exhibit a positive response to immune checkpoint inhibitor (ICI) therapy.

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Non-electrophysiological techniques targeting transient receptor potential (TRP) gene of gastrointestinal tract.

Int J Biol Macromol

March 2024

School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Center for Pharmaceutics Research, Shanghai Institute of Materia Medica Chinese Academy of Sciences, Shanghai 201203, China. Electronic address:

Transient receptor potential (TRP) channels are cation channels related to a wide range of physical and chemical stimuli, they are expressed all along the gastrointestinal system, and a myriad of diseases are often associated with aberrant expression or mutation of the TRP gene, suggesting that TRPs are promising targets for drug therapy. Therefore, a better understanding of the information of TRPs in health and disease could facilitate the development of effective drugs for the treatment of gastrointestinal diseases like IBD. But there are very few generalizations about the experimental techniques studied in this field.

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Gut-brain axis interacts with immunomodulation in inflammatory bowel disease.

Biochem Pharmacol

January 2024

Center for Pharmaceutics Research, Shanghai Institute of Materia Medica Chinese Academy of Sciences, 501 Hai-ke Rd, Shanghai 201203, China. Electronic address:

The brain and the gastrointestinal (GI) tract are important sensory organs in the body and the two-way interaction that exists between them regulates key physiological and homeostatic functions. A growing body of research suggests that this bidirectional communication influences the development and progression of functional GI disorders and plays an important role in the treatment of central nervous system (CNS) disorders. Inflammatory bowel disease (IBD) is a classic intestinal disorder with a high prevalence but still unclear pathogenesis that has been widely discussed in recent years.

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Point-of-care detection of tumor biomarkers with high sensitivity remains an enormous challenge in the early diagnosis and mass screening of cancer. Fluorescent lateral flow immunoassay (LFA) is an attractive platform for point-of-care testing due to its inherent advantages. Particularly, a fluorescent probe is crucial to improving the analytical performance of the LFA platform.

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Age-related macular degeneration (AMD) is one of the main causes of visual impairment and severe visual loss, and can progress to two advanced forms-neovascularization and atrophic. The field of anti-AMD drugs has undergone huge developments in recent years, from single-target intravitreal administration to current clinical studies with multi-target and non-invasive agents, offering interesting new pharmacological opportunities for the treatment of this disease. Hence, we summarize some of the approved anti-vascular endothelial growth factor (VEGF) drugs for neovascular AMD, especially their structural characteristics, clinical manifestations, dosing regimens, and safety issues of the anti-VEGF drugs highlighted.

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Transient receptor potential (TRP) channels are sensors for a variety of cellular and environmental signals. Mammals express a total of 28 different TRP channel proteins, which can be divided into seven subfamilies based on amino acid sequence homology: TRPA (Ankyrin), TRPC (Canonical), TRPM (Melastatin), TRPML (Mucolipin), TRPN (NO-mechano-potential, NOMP), TRPP (Polycystin), TRPV (Vanilloid). They are a class of ion channels found in numerous tissues and cell types and are permeable to a wide range of cations such as Ca, Mg, Na, K, and others.

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Protein arginine methyltransferase 5 (PRMT5) is a major type II enzyme responsible for symmetric dimethylation of arginine (SDMA), and plays predominantly roles in human cancers, including in ovarian cancer. However, the exactly roles and underlying mechanisms of PRMT5 contributing to the progression of ovarian cancer mediated by reprogramming cell metabolism remain largely elusive. Here, we report that PRMT5 is highly expressed and correlates with poor survival in ovarian cancer.

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Intestinal vascular impairment is critical to the recovery of inflammatory bowel disease (IBD), and targeting vascular endothelial cells is a promising emerging therapeutic option. Considering the natural homing properties of platelets to activated vascular endothelium, platelet membrane-mimetic nanoparticles are expected to achieve precise treatment of IBD. Patchouli alcohol (PA) has proven efficacy in experimental colitis, yet its pharmacochemical properties require improvement to enhance efficacy.

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Modular Click Assembly DNA-Encoded Glycoconjugate Libraries with on-DNA Functional Group Transformations.

Bioconjug Chem

March 2023

State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Zhang Jiang Hi-Tech Park, Pudong, Shanghai, 201203, China.

Carbohydrates are an important class of naturally active products and play vital roles in regulating various physiological activities. To meet the demand for carbohydrate-based libraries used for the identification of potential drug candidates for pharmaceutical-related targets, we developed a set of on-DNA protocols to construct the DNA-encoded glycoconjugates, including Seyferth-Gilbert homologation, anomeric azidation, and CuAAC cyclization. These on-DNA chemistries enable the generation and modification of DNA-linked glycosyl compounds with good conversions and broad substrate scope.

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Peptide-functionalized therapeutic nanoplatform for treatment orthotopic triple negative breast cancer and bone metastasis.

Nanomedicine

June 2023

Department of Orthopedics, Medical Research Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China. Electronic address:

Epidermal Growth Factor Receptor (EGFR) is a promising therapeutic target for triple-negative breast cancer (TNBC). Recently, specific EGFR-targeting peptide GE11-based delivery nano-system shows excellent potential because of its chemical versatility and good targeting ability. However, no further research focusing on the downstream of EGFR after binding with GE11 was explored.

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The efficiency of reactive oxygen species (ROS)-based photodynamic therapy (PDT) is far from satisfactory, because cancer cells can adapt to PDT by upregulating glutathione (GSH) levels. The GSH levels in tumor cells are determined based on glutamine availability via alanine-serine-cysteine transporter 2 (ASCT2)-mediated entry into cells. Herein, we develop co-assembled nanoparticles (PPa/V-9302 NPs) of the photosensitizer pyropheophorbide a (PPa) and V-9302 (a known inhibitor of ASCT2) in a 1:1 M ratio using a one-step precipitation method to auto-enhance photodynamic therapy.

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