Publications by authors named "Mengyun Zhang"

Problem: The recovery of scandium (Sc), a critical rare earth element, is hampered by its dispersed geological occurrence and the economic and environmental drawbacks of conventional methods. While microbial extracellular polymeric substances (EPS) are promising biosorbents, their practical application is limited by insufficient target-specificity in complex matrices.

Solution: Inspired by bacterial adaptive responses, this study employed targeted scandium stress to modulate the composition and structure of EPS secreted by Methylobacterium extorquens, thereby enhancing the selective adsorption of scandium.

View Article and Find Full Text PDF

New anti-tuberculosis (TB) drugs with novel modes of action are in great demand due to the complex treatment regimens as well as the rising number of multidrug-resistant TB cases. We recently re-evaluated a few 2,5,6-trisubstituted benzimidazole derivatives (SBZ) previously demonstrated to have potent antitubercular activity. These compounds displayed favorable MICs and significantly reduced bacterial counts in an acute mouse infection model.

View Article and Find Full Text PDF

The distribution of polycyclic aromatic hydrocarbons (PAHs) in soil and their impact on soil bacterial communities have garnered significant attention. In this study, we selected the representative Huainan Panji coal mining area as our research site to analyze the diversity of bacterial communities in four distinct zones within the mining area, as well as the relationship between environmental factors and PAHs contamination. A total of 16 PAHs were found to be enriched in the soil, with notably higher concentrations in the coal gangue hill area compared to other regions.

View Article and Find Full Text PDF

Background: T-cell malignancies are highly aggressive hematological tumors with limited effective treatment options. CAR-NK cell therapy targeting CD7 has emerged as a promising approach for treating T-cell malignancies. However, conventional CAR-NK cell therapy faces the challenges of cell fratricide due to CD7 expression on both malignant cells and normal NK cells.

View Article and Find Full Text PDF

Background: Depression has become a global public health problem. In recent years, transcranial magnetic stimulation (TMS) has gained considerable attention as a non-invasive treatment for depression.

Aim: To investigate the research hotspots and trends in the field of TMS-based depression treatment from a bibliometric perspective.

View Article and Find Full Text PDF

The prevention of osteoarthritis through controlling body measurements has received increasing attention in recent years, but the relationship between lean body mass (LBM) and osteoarthritis remains unclear. Hence, we explored this association through the data from the National Health and Nutrition Examination Survey (2007-2018). The present study enrolled 31,172 participants.

View Article and Find Full Text PDF

Background: The perioperative use of esketamine may reduce opioid use and their adverse effects. We aimed to evaluate the intraoperative safety and efficacy of weak opioidized anesthesia with low-dose esketamine in the treatment of elderly patients with lumbar spinal stenosis undergoing total laminectomy with complete decompression and interbody implant fusion.

Methods: In total, 90 elderly patients were randomized into three groups: the esketamine HS group (0.

View Article and Find Full Text PDF

Tactile sensation and recognition in the human brain are indispensable for interaction between the human body and the surrounding environment. It is quite significant for intelligent robots to simulate human perception and decision-making functions in a more human-like way to perform complex tasks. A combination of tactile piezoelectric sensors with neuromorphic transistors provides an alternative way to achieve perception and cognition functions for intelligent robots in human-machine interaction scenarios.

View Article and Find Full Text PDF

The aim of this study was to investigate the clinical features and outcomes of elderly patients with acute myeloid leukemia (AML) from a real word research. The clinical data of 223 consecutive elderly patients (aged ≥ 60 years) who were newly diagnosed with AML at our medical center between July 2017 and June 2022, including their clinical characteristics, genetic mutations, and survival outcomes, were retrospectively analyzed. Among the 223 patients (median age 67 years), 180 (80.

View Article and Find Full Text PDF

Background: Chimeric antigen receptor (CAR) engineered natural killer (NK) cells exhibit advantages such as MHC-independent recognition and strong anti-tumor functions. However, allogeneic CAR-NK cells derived from human tissues are heterogeneous and susceptible to clearance by hosts.

Methods: We generated a B2M knockout, HLA-E and CD19 CAR ectopic expressing embryonic stem cell (ESC) line, which differentiated normally and gave rise to homogeneous CD19 CAR-NK (CD19 CAR-UiNK) cells using an organoid aggregate induction method.

View Article and Find Full Text PDF
Article Synopsis
  • Substantial evidence links circRNAs and m6A modification to tumor formation and development, but little research has focused on how m6A-modified circRNAs affect the radiosensitivity of esophageal squamous cell carcinoma (ESCC).
  • This study aimed to investigate how m6A-modified circCREBBP increases the radiosensitivity of ESCC by examining the differences in circRNA expression in sensitive versus resistant ESCC tissues and cells.
  • The research revealed that circCREBBP is significantly reduced in radio-resistant ESCC patients and that its knockdown leads to increased radioresistance, operating through a mechanism involving the METTL3/IGF2BP3/circCREBBP/MYC pathway.
View Article and Find Full Text PDF

In recent years, the rapid expansion of research and application of the Internet of Things and wearable electronics has prompted the development of a variety of sensors to perceive physical or chemical information from both the human body and the environment, among which the proximity sensor is a kind of noncontact sensor used to detect the approach of a target and thus exhibits promising applications in human-machine interactions. Thin-film transistors are one type of key components in modern electronics and have been further developed as electrostatic-induction-type proximity sensors to perceive the approach of electrically charged objects. However, they are immune to the approach of a zero-potential object.

View Article and Find Full Text PDF

The Legionella pneumophila Sde family of translocated proteins promotes host tubular endoplasmic reticulum (ER) rearrangements that are tightly linked to phosphoribosyl-ubiquitin (pR-Ub) modification of Reticulon 4 (Rtn4). Sde proteins have two additional activities of unclear relevance to the infection process: K63 linkage-specific deubiquitination and phosphoribosyl modification of polyubiquitin (pR-Ub). We show here that the deubiquitination activity (DUB) stimulates ER rearrangements while pR-Ub protects the replication vacuole from cytosolic surveillance by autophagy.

View Article and Find Full Text PDF

Quinones represent a class of crude organic compounds ubiquitously distributed in nature. Their distinctive quinone-type structure confers upon them unique properties and applications. Quinones demonstrate significant biological activities, including antioxidant, antimicrobial, and antitumor properties.

View Article and Find Full Text PDF

CAR-NK cell therapy does not require HLA matching and has minimal side effects. However, traditional methods of engineering CARs into human tissue-derived NK cells exhibit heterogeneity, low transduction efficiency, and high manufacturing costs. Here, we provide a reliable approach for generating large-scale and cryopreserved mesothelin (MSLN) CAR-NK cells from human embryonic stem cells (hESCs) as an alternative cell source.

View Article and Find Full Text PDF

Chimeric antigen receptor-natural killer (CAR-NK) cell therapy is emerging as a promising cancer treatment, with notable safety and source diversity benefits over CAR-T cells. This study focused on optimizing CAR constructs for NK cells to maximize their therapeutic potential. We designed seven CD19 CAR constructs and expressed them in NK cells using a retroviral system, assessing their tumour-killing efficacy and persistence.

View Article and Find Full Text PDF

Background: Gout is caused by monosodium urate (MSU) crystals deposition to trigger immune response. A recent study suggested that inhibition of Class I Histone deacetylases (HDACs) can significantly reduce MSU crystals-induced inflammation. However, which one of HDACs members in response to MSU crystals was still unknown.

View Article and Find Full Text PDF

The Sde family of translocated proteins promotes host tubular endoplasmic reticulum (ER) rearrangements that are tightly linked to phosphoribosyl-ubiquitin (pR-Ub) modification of Reticulon 4 (Rtn4). Sde proteins have two additional activities of unclear relevance to the infection process: K63 linkage-specific deubiquitination and phosphoribosyl modification of polyubiquitin (pR-Ub). We show here that the deubiquitination activity (DUB) stimulates ER rearrangements while pR-Ub protects the replication vacuole from cytosolic surveillance by autophagy.

View Article and Find Full Text PDF

Background: Food products undergo a pronounced Maillard reaction (MR) during the cooking process, leading to the generation of substantial quantities of Maillard reaction products (MRPs). Within this category, advanced glycation end products (AGEs), acrylamide (AA), and heterocyclic amines (HAs) have been implicated as potential risk factors associated with the development of diseases.

Purpose: To explore the effects of polyphenols, a class of bioactive compounds found in plants, on the inhibition of MRPs and related diseases.

View Article and Find Full Text PDF

Background: Oxidative damage plays an important role in the progression of rheumatoid arthritis (RA). Emerging research evidence suggests that natural antioxidants may effectively ameliorate this disease.

Objectives: To investigate the therapeutic effect of echinacoside (ECH) in a collagen-induced arthritis (CIA) mouse model and thus elucidate the underlying molecular mechanism in RA.

View Article and Find Full Text PDF

Hoxb5 exhibits preferential expression in hematopoietic stem cells (HSCs) and uniquely marks the long-term HSCs (LT-HSCs). Previous studies have demonstrated the remarkable capability of Hoxb5 to alter cell fates when enforced expression in blood progenitors, such as B cell progenitors and multipotent progenitors. Additionally, Hoxb5 deficiency does not hinder the generation of LT-HSCs.

View Article and Find Full Text PDF

Radiotherapy, a treatment method employing radiation to eradicate tumor cells and subsequently reduce or eliminate tumor masses, is widely applied in the management of numerous patients with tumors. However, its therapeutic effectiveness is somewhat constrained by various drug-resistant factors. Recent studies have highlighted the ubiquitination/deubiquitination system, a reversible molecular modification pathway, for its dual role in influencing tumor behaviors.

View Article and Find Full Text PDF
Article Synopsis
  • The study focuses on developing a new method for quickly detecting bevacizumab in blood using modified DNA probes, which improves on traditional methods that can be slow and less precise.
  • The researchers designed chimeric hairpin DNA aptamers and used advanced techniques like microscale thermophoresis to optimize their detection capabilities, achieving a low detection limit of 0.37 pM.
  • The new biosensor was validated with spiked samples, proving to be accurate and efficient, suggesting it could significantly improve the diagnosis and treatment of diseases involving bevacizumab.
View Article and Find Full Text PDF

Rapid and effective separation of nucleotides (NTs) and their derivatives is crucial for studying their physiological functions. In this work, we comprehensively evaluated the separation ability of a zwitterionic hydrophilic monolith, i.e.

View Article and Find Full Text PDF