Optimization of biocatalytic production of sodium gluconate using a dual-enzyme system.

Sodium gluconate has a wide range of applications, including in the fields of construction, textiles, medicine, the chemical industry, and food, so the industrialized production of sodium gluconate is particularly important. However, the preparation process of sodium gluconate is not mature enough, and the production cost is high, which restricts the development of the industry. In this study, the optimization of process conditions for the catalytic production of sodium gluconate from glucose via a dual-enzyme system of glucose oxidase (GOD) and catalase (CAT) was investigated in detail.

Construction and screening of L-valine high-yielding using an artificial screening marker.

Introduction: L-valine is commonly utilized in cosmetics, pharmaceuticals, food additives, and animal feeds. The selection and breeding of high-yielding, low-cost, and genetically stable production strains have become a key objective in the L-valine production industry.

Methods: Using DB-1-1, we developed a screening marker LESG associated with intracellular L-valine levels by choosing GTC, a less common codon for L-valine, in place of all L-valine codons.

A Conjugated Polymer-Based Injectable Hydrogel for Programmed Antibiofilm and Anti-Inflammation Therapy to Promote Diabetic Wound Healing.

Chronic diabetic wounds pose severe challenges in the clinic due to drug-resistant biofilm infections and an inflammatory microenvironment. Herein, an injectable hydrogel (NPs@gel) is developed and applied for antibiofilm and anti-inflammation, accelerating diabetic wound healing. First, an o-nitrobenzene (NB)-modified conjugated polyfluorene vinylene photosensitizer (PFV-NB) is designed and synthesized.

Nitric oxide-activatable NIR-II organic small molecule for fluorescence imaging-guided synergistic photodynamic and photothermal therapy.

Precise cancer diagnosis and treatment are vital for reducing mortality. The development of activatable second near-infrared window (NIR-II) imaging-guided tumor phototherapy strategies with excellent tumor specificity and antitumor effects remains a major challenge. In this work, we design and synthesize a D-π-A-π-D organic small molecule CTBA that can be effectively activated by nitric oxide.

Conjugated oligo (phenylene vinylene) covalently linked porphyrin for sonodynamic therapy.

Sonodynamic therapy (SDT) is garnering considerable attention as a promising treatment for deep-seated tumors because of its strong tissue penetration ability, non-invasiveness, and controllability. However, the SDT efficiency of traditional sonosensitizers including porphyrins and their derivatives are limited due to their poor water dissolubility, high aggregation, and low reactive oxygen species (ROS) production efficiency. Consequently, it is crucial to develop novel sonosensitizers with high yields of ROS, outstanding water solubility, and good biocompatibility.

A novel P450 enzyme assay utilizing an NADP-based biosensor.

Purpose: High-throughput screening methods for cytochrome P450 enzymes (P450s), such as colorimetric, mass spectrometric, and fluorescence-based assays, often face limitations in throughput, real-time monitoring, and versatility.

Methods: To address these challenges, we developed a novel biosensor leveraging glucose-6-phosphate dehydrogenase and Bimolecular Fluorescence Complementation for real-time monitoring of intracellular NADP levels, enabling P450 activity detection. The sensor was applied to monitor P450 activity by tracking intracellular NADP dynamics, as P450s catalyze diverse substrate reactions and convert NADPH to NADP via their electron transport system.

[Difference of compensatory mechanisms in bilateral knee osteoarthritis patients of varying severity].

Objective: To investigate the load distribution on the more painful and less painful limbs in patients with mild-to-moderate and severe bilateral knee osteoarthritis (KOA) and explore the compensatory mechanisms in both limbs among bilateral KOA patients with different severity levels.

Methods: A total of 113 participants were enrolled between July 2022 and September 2023. This cohort comprised 43 patients with mild-to-moderate bilateral KOA (Kellgren-Lawrence grade 2-3), 43 patients with severe bilateral KOA (Kellgren-Lawrence grade 4), and 27 healthy volunteers (healthy control group).

Stratification of Hepatocellular Carcinoma Using -Methyladenosine.

: The -methyladenosine (mA) modification of eukaryotic mRNA is the most prevalent of such epigenetic modifications and has recently been identified as a potential player in the pathogenesis and progression of hepatocellular carcinoma (HCC). With the increasing emergence of immunotherapy in the treatment of HCC, we have evaluated the potential of mA-related genes in predicting overall survival and the therapeutic efficacy of immunotherapy in HCC patients. : We employed transcriptomic data from TCGA-LIHC and GSE76427, comprising a total of 485 HCC patients, as the training set.

Intracellular self-assembly and metabolite analysis of key enzymes for L-lysine synthesis based on key components of cellulosomes.

Introduction: Cellulosome is a natural multi-enzyme complex in the extracellular space of anaerobic microorganisms, which has the advantages of small molecular weight, multiple binding sites, and strong designability. This study aimed to explore the influence of intracellular self-assembly complexes on L-lysine biosynthesis.

Methods: Two novel L-lysine-engineered bacteria modification strategies were designed, considering the L-lysine biosynthesis pathway using DocA-S3/Coh as an efficient intracellular assembly element: pairwise assembly of key enzymes in cells and multi-enzyme assembly based on scaffolding proteins.

High-throughput screening of Aureobasidium pullulans for high β-glucan production using UV mutagenesis combined with artificial fluorescent labeling.

Aureobasidium pullulans (A. pullulans) is a yeast-like fungus that produces β-glucan, an exopolysaccharide, during its fermentation. However, there is currently a lack of high-throughput screening and breeding methods for high β-glucan-producing A.

Enhancing 10-HDA production of by heterologous expression of MexHID transporter proteins.

10-Hydroxy-2-decenoic acid (10-HDA) is a medium-chain α,β-unsaturated carboxylic acid that exists in royal jelly with terminal hydroxylation. It has a broad market value because of its antibacterial, anti-inflammatory, anti-tumor, anti-radiation, and other active functions. The one-step whole-cell catalytic synthesis of 10-HDA by constructing engineered strains has improved the reaction rate to a certain extent compared with the previous two-step method.

Suppression of pseudogene MT2P1 transcription induced by E2F7 inhibits hepatocellular carcinoma cell proliferation and facilitates apoptosis via preserving its parental gene.

The majority of the pseudogenes are inert in normal transcription. Their transcripts are mostly attributed to non-coding RNAs that play various functions in human tumorigenicity and progression. Distinctively, pseudogene MT2P1 is universally transcribed in hepatocytes and presents a significant decrease in hepatocellular carcinoma (HCC).

Engineering Compartmentalization and Cofactor Regulation for 10-Hydroxy-2-decenoic Acid Biosynthesis in .

10-Hydroxy-2-decenoic acid (10-HDA), a bioactive component of royal jelly, exhibits significant pharmacological value in various applications. To date, its biosynthesis has been reported exclusively in endotoxin-prone , which limits its biomedical utility. In this study, we successfully engineered the Generally Recognized As Safe (GRAS) yeast as a biosynthetic platform for producing 10-HDA, thereby addressing the limitations associated with systems.

A simulation study on traffic conflict risk under shockwave propagation at signalized intersections.

Traffic congestion and safety at signalized intersections are critical concerns in urban mobility management. The interaction between shockwaves caused by stop-and-go vehicles and the resultant conflict risk remains inadequately understood, necessitating detailed investigation. This study aims to explore the relationship between traffic conflict risk and shockwave propagation at signalized intersections through simulation, focusing on the dynamic conditions as vehicles queue and dissipate.

Targeted Penetrating Motif Engineering of BH3 Mimetic: Harnessing Non-Canonical Amino Acids for Coinhibition of MCL-1 and BCL-xL in Acute Myeloid Leukemia.

Acute Myeloid Leukemia (AML) remains a formidable clinical challenge, predominantly due to the emergence of resistance to existing therapeutic regimens, including BCL-2 inhibitors like Venetoclax. Here, a novel approach is introduced by engineering BH3 mimetics utilizing non-canonical amino acids (ncAAs) to achieve dual inhibition of MCL-1 and BCL-xL. Through site saturation mutagenesis scanning, the I58(Chg) mutation is identified, significantly enhancing binding affinity with IC values of 2.

Systemic therapy with pemigatinib and sintilimab followed by resection for recurrent FGFR-2-positive intrahepatic cholangiocarcinoma: a case report.

Background: Fibroblast growth factor receptor-2 (FGFR-2) mutations are frequently observed in intrahepatic cholangiocarcinoma (ICC). While FGFR2-targeted therapies are primarily studied in advanced ICC, this report presents a rare case of locally recurrent ICC treated with systemic therapy, leading to significant tumor regression and successful R0 resection.

Case Presentation: A 51-year-old female underwent right posterior hepatectomy and cholecystectomy in 2018 for ICC.

Ascending E2F7a/b ratio facilitates KLF13 transcription in hepatocellular carcinoma and correlates with the abundance of binuclear hepatocytes (ABH) modulation for short-term recurrence.

Short-term recurrence after surgery severely threatens patients' lives and leads to dismal outcomes in hepatocellular carcinoma (HCC). Our previous research proposed the abundance of binuclear hepatocytes (ABH) as an independent indicator related to the cytokinesis regulator Anillin and significantly associated with HCC recurrence. The exact mechanism of ABH modulation has not been clearly illustrated.

Paracancerous binuclear hepatocytes assessed by computer program is a novel biomarker for short term recurrence of hepatocellular carcinoma after surgery.

Hepatocellular carcinoma (HCC) is notorious for its high likelihood of recurrence even after radical surgery, which calls for effective adjuvant therapy based on more precise patient selection. The decline of the abundance of binuclear hepatocytes (ABH) in paracancerous liver tissues has been reported to indicate pathological changes in liver cells, leading to short-term recurrence within 2 years. In this research, we analyzed 34 HCC patients and 22 patients underwent liver surgery for non-HCC diseases.

Non-targeted metabolomics revealed that the release mechanism of Tween-80 interferes with prodigiosin synthesis and release by SDSPY-136.

Unlabelled: produce prodigiosin as a high-value intracellular secondary metabolite. However, the effect of Tween-80 on prodigiosin release remains unclear. This study aimed to elucidate the physiological characteristics and metabolic mechanisms of in the presence of Tween-80.

Evaluation of a smartphone-based markerless system to measure lower-limb kinematics in patients with knee osteoarthritis.

OpenCap, a smartphone-based markerless system, offers a cost-effective alternative to traditional marker-based systems for gait analysis. However, its kinematic measurement accuracy must be evaluated before widespread use in clinical practice. This study aimed to evaluate OpenCap for lower-limb joint angle measurements during walking in patients with knee osteoarthritis (OA) and to compare error metrics between patients and healthy controls.

Exceptional Uptake, Limited Protein Expression: Liver Macrophages Lost in Translation of Synthetic mRNA.

Most gene therapies exert their actions via manipulation of hepatocytes (parenchymal cells) and the reasons behind the suboptimal performance of synthetic mRNA in non-parenchymal cells (NPC) such as Kupffer cells (KC), and liver macrophages, remain unclear. Here, the spatio-temporal distribution of mRNA encoding enhanced green fluorescent protein (Egfp), siRNA, or both co-encapsulated into lipid nanoparticles (LNP) in the liver in vivo using real-time intravital imaging is investigated. Although both KC and hepatocytes demonstrate comparable high and rapid uptake of mRNA-LNP and siRNA-LNP in vivo, the translation of Egfp mRNA occurs exclusively in hepatocytes during intravital imaging.

Proline Improves Pullulan Biosynthesis Under High Sugar Stress Condition.

Pullulan is an extracellular polysaccharide produced via the fermentation of . However, high sugar concentrations and hyperosmotic stress limit pullulan biosynthesis during the fermentation process. Therefore, we investigated the effects of proline supplementation on .

Optimization of fermentation conditions for whole cell catalytic synthesis of D-allulose by engineering Escherichia coli.

D-allulose/D-psicose is a significant rare sugar with broad applications in the pharmaceutical, food, and other industries. In this study, we cloned the D-allulose 3-epimerase (DPEase) gene from Arthrobacter globiformis M30, using pET22b as the vector. The recombinant E.

FOLFOX-HAIC combined with targeted immunotherapy for initially unresectable hepatocellular carcinoma: a real-world study.

Background: Hepatic arterial infusion chemotherapy (HAIC) with the FOLFOX regimen has demonstrated efficacy in patients with unresectable hepatocellular carcinoma (HCC). The combined targeted and immunotherapy has emerged as a first-line treatment for liver cancer. In this study, we investigated the clinical efficacy and safety of FOLFOX-HAIC in combination with targeted immunotherapy in patients with untreated, unresectable HCC.

Validity of an inertial measurement system to measure lower-limb kinematics in patients with hip and knee pathology.

Gait analysis for patients with orthopedic joint diseases is crucial to understand their functional status. Inertial measurement unit (IMU) systems, as alternatives to optical motion capture (OMC) systems, enable gait analysis outside the laboratory. However, their accuracy requires validated before widespread clinical use.