Exploring the potential of gemcitabine-metal-organic frameworks in combating pancreatic cancer under ketogenic conditions.

Background: Inadequate treatment responses, chemotherapy resistance, significant heterogeneity, and lengthy treatment durations create an urgent need for new pancreatic cancer therapies. This study aims to investigate the effectiveness of gemcitabine-loaded nanoparticles enclosed in an organo-metallic framework under ketogenic conditions in inhibiting the growth of MIA-PaCa-2 cells.

Methods: Gemcitabine was encapsulated in Metal-organic frameworks (MOFs) and its morphology and size distribution were examined using transmission electron microscopy (TEM) and Dynamic light scattering (DLS) with further characterization including FTIR analysis.

Beyond the Hayflick Limit: How Microbes Influence Cellular Aging.

Cellular senescence, a complex biological process resulting in permanent cell-cycle arrest, is central to aging and age-related diseases. A key concept in understanding cellular senescence is the Hayflick Limit, which refers to the limited capacity of normal human cells to divide, after which they become senescent. Senescent cells (SC) accumulate with age, releasing pro-inflammatory and tissue-remodeling factors collectively known as the senescence-associated secretory phenotype (SASP).

Transcriptome of capsular contracture around breast implants mimics allograft rejection: a matched case-control study.

Background: Capsular contracture is a frequent and severe complication following breast implant surgery. Although several theories on the pathophysiology exist, the exact molecular mechanisms remain unclear. This study aimed to identify the specific genes, signaling pathways, and immune cells associated with capsular contracture.

Superstable lipid vacuoles endow cartilage with its shape and biomechanics.

Conventionally, the size, shape, and biomechanics of cartilages are determined by their voluminous extracellular matrix. By contrast, we found that multiple murine cartilages consist of lipid-filled cells called lipochondrocytes. Despite resembling adipocytes, lipochondrocytes were molecularly distinct and produced lipids exclusively through de novo lipogenesis.

Efficacy of umbilical cord-derived mesenchymal stem cells and exosomes in conjunction with standard IBD drug on immune responses in an IBD mouse model.

Background: Inflammatory bowel disease (IBD) is a persistent inflammation of the digestive system, and Mesenchymal Stem Cells (MSCs) and their exosomes have demonstrated potential as treatments for this condition. The objective of this research was to examine the possible effectiveness of intraperitoneal injection of umbilical cord-MSCs (UC-MSCs) and their exosomes through a two-time injection regimen in a mouse model.

Method: In this study, an animal model of a specific type of IBD in C57BL/6 mice, induced by dextran sulfate sodium (DSS), was utilized.

Computational investigation of the global prevalence of multidrug resistant : A systematic review and meta-analysis.

Background: Leprosy is a chronic infectious disease caused by () However, the emergence of drug-resistant strains of this bacterium, especially multidrug-resistant (MDR) strains, is a serious concern. This study aimed to evaluate the global prevalence of MDR and its implications.

Methods: Using PRISMA guidelines, we systematically reviewed ISI Web of Science, MEDLINE, and EMBASE up to August 2023 to assess the prevalence of MDR .

Efficacy and Safety of PARP Inhibitors in Prostate Cancer: An Umbrella Review of Systematic Reviews and Meta-analyses.

Prostate cancer is a significant cause of cancer-related deaths in men. Poly (ADP-ribose) polymerase inhibitors (PARPi) have been shown to improve progression-free survival, especially in patients with BRCA1/2 mutations and deficiencies in homologous recombination repair (HRR). We conducted systematic reviews and meta-analyses and found that PARPi, combined with androgen receptor inhibitors, significantly improved overall survival (OS) and progression-free survival (PFS) in BRCA1/2-mutant and HRR-deficient patients.

Revolutionizing Cancer Treatment: Unveiling the Power of CAR T-cell Therapy.

Cancer is a significant health challenge worldwide, causing social and economic burdens. Despite advancements in medicine, it remains a leading cause of death and is projected to increase by 2040. While conventional treatments like surgery, radiation, and chemotherapy are effective, they often have severe side effects.

A1, an innovative fluorinated CXCR4 inhibitor, redefines the therapeutic landscape in colorectal cancer.

Background: Colorectal cancer (CRC) is a globally prevalent malignancy, primarily affecting the colon and rectum, characterized by uncontrolled cellular changes in the intestinal wall lining. Recent evidence underlines the significant role of the CXCL12/CXCR4 axis in the development of CRC, suggesting that inhibiting this pathway could be a promising therapeutic approach. This study focuses on investigating the potential of N, N''-thiocarbonylbis (N'-(3,4-dimethyl phenyl)-2,2,2-trifluoroacetimidamide) (A1), a novel fluorinated CXCR4 inhibitor, through a comprehensive analysis encompassing in silico, in vitro, and in vivo studies.

Integrating Ultrabright Polymer Dots and Stereo NIR-II Imager for Assessing Anti-Angiogenic Drugs in Oral Cancer Model.

The development of efficient platforms for the evaluation of anti-angiogenic agents is critical in advancing cancer therapeutics. In this study, we exploited an ultrabright semiconducting polymer dots (Pdots) integrating with a three-dimensional (3D) near-infrared-II (NIR-II) fluorescence imaging system designed to assess the efficacy of potent anti-angiogenic agents PX-478 and BPR0C261 in an oral squamous cell carcinoma (OSCC) tumour model, which depends on angiogenesis for dissemination. PX-478, a hypoxia-inducible factor-1α (HIF-1α) inhibitor, and BPR0C261, a microtubule-disrupting agent, were administrated into tumour-bearing mice established using murine MTCQ1 tongue cancer cells through intraperitoneal injection and oral gavage, respectively.

Advancements in colorectal cancer immunotherapy: from CAR-T cells to exosome-based therapies.

Colorectal cancer (CRC) continues to be a major worldwide health issue, with elevated death rates linked to late stages of the illness. Immunotherapy has made significant progress in developing effective techniques to improve the immune system's capacity to identify and eradicate cancerous cells. This study examines the most recent advancements in CAR-T cell treatment and exosome-based immunotherapy for CRC.

Transcriptomic predictors of rapid progression from mild cognitive impairment to Alzheimer's disease.

Background: Effective treatment for Alzheimer's disease (AD) remains an unmet need. Thus, identifying patients with mild cognitive impairment (MCI) who are at high-risk of progressing to AD is crucial for early intervention.

Methods: Blood-based transcriptomics analyses were performed using a longitudinal study cohort to compare progressive MCI (P-MCI, n = 28), stable MCI (S-MCI, n = 39), and AD patients (n = 49).

Clinical implications of human Parvovirus B19 infection on autoimmunity and autoimmune diseases.

Parvovirus B19 (B19V) is a human pathogen from the Parvoviridae family that primarily targets and replicates in erythroid progenitor cells (EPCs). While its symptoms are typically self-limiting in healthy individuals, B19V can cause or exacerbate autoimmune diseases in vulnerable patients. This review integrates the involvement of B19V in the development and worsening of several autoimmune diseases, including systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), juvenile idiopathic arthritis (JIA), hematological disorders (thalassemia, anemia, and thrombocytopenia), vasculitis, antiphospholipid syndrome (APS), dermatological disease (systemic sclerosis, psoriasis), autoimmune thyroid disease, myocarditis, and myasthenia gravis, and autoinflammatory disease of adult-onset Still's disease (AOSD).

Simultaneous blockade of the CD73/EGFR axis inhibits tumor growth.

Targeting the influencing factors in tumor growth and expansion in the tumor microenvironment is one of the key approaches to cancer immunotherapy. Various factors in the tumor microenvironment can in cooperation stimulate tumor growth, suppress anti-tumor immune responses, promote drug resistance, and ultimately enhance tumor recurrence. Therefore, due to the dependence and close cooperation of these axes, their combined targeting can have a greater effect compared to their individual targeting.

How necessary it is to perform a ventilation scan in patients with a history of COVID-19 to rule out pulmonary thromboembolism?

Objectives: This study evaluated the necessity of a ventilation scan in patients suspected of PE with a history of COVID-19 infection.

Methods: This was a cross-sectional study of patients with PCR-confirmed COVID-19 and suspected PE at a tertiary care hospital in 2020. They underwent ventilation/perfusion (V/Q) scintigraphy using single-photon emission computed tomography/computed tomography (SPECT/CT) and CT scans with or without contrast.

CD36-mediated uptake of oxidized LDL induces double-negative regulatory T cell ferroptosis in metabolic dysfunction-associated steatotic liver disease.

Background: Metabolic alterations have been shown to instigate liver inflammation in metabolic dysfunction-associated steatotic liver disease (MASLD), but the underlying mechanism is not fully elucidated. During MASLD progression, intrahepatic CD3TCRαβCD4CD8 double negative T regulatory cells (DNT) decrease cell survival and immunosuppressive function, leading to aggravated liver inflammation. In this study, we aim to reveal the underlying mechanisms that cause changes in DNT during MASLD progression.

Recent progress in prompt molecular detection of liquid biopsy using Cas enzymes: innovative approaches for cancer diagnosis and analysis.

Creating fast, non-invasive, precise, and specific diagnostic tests is crucial for enhancing cancer treatment outcomes. Among diagnostic methods, those relying on nucleic acid detection are highly sensitive and specific. Recent developments in diagnostic technologies, particularly those leveraging Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR), are revolutionizing cancer detection, providing accurate and timely results.

Serum vitamin D levels and their correlation with pro-inflammatory prostaglandins in Acute myeloid leukemia: a cross-sectional analysis.

Background This study investigated the association between prostaglandins, vitamin D levels, and their potential role in acute myeloid leukemia (AML). Previous research has shown prostaglandins' stimulatory effects and vitamin D's inhibitory effects in various malignancies. Methods This cross-sectional study evaluated 54 AML patients at Shahid Ghazi Center of Imam Reza Hospital in Tabriz.

Immune checkpoint inhibitor-induced severe epidermal necrolysis mediated by macrophage-derived CXCL10 and abated by TNF blockade.

Immune checkpoint inhibitors (ICI) represent new anticancer agents and have been used worldwide. However, ICI can potentially induce life-threatening severe cutaneous adverse reaction (SCAR), such as Stevens-Johnson syndrome/toxic epidermal necrolysis (SJS/TEN), hindering continuous ICI therapy. We examine 6 cohorts including 25 ICI-induced SJS/TEN patients and conduct single-cell RNA sequencing (scRNA-seq) analysis, which shows overexpression of macrophage-derived CXCL10 that recruits CXCR3 cytotoxic T lymphocytes (CTL) in blister cells from ICI-SJS/TEN skin lesions.

CLEC12B regulates melanocyte immunity and homeostasis in the skin through the STAT1/IRF1 axis.

CLEC12B is a C-type lectin receptor involved in the inhibition of natural killers-mediated cytotoxicity. We have previously shown that CLEC12B is predominantly expressed on melanocytes, inhibits melanin production and pigmentation as well as proliferation of melanoma. To date, the role of CLEC12B in skin immunity is unknown.

Botox-A induced apoptosis and suppressed cell proliferation in fibroblasts pre-treated with breast cancer exosomes.

Background: breast cancer-associated fibroblast (CAF) is linked to metastasis and is poor for breast cancer prognosis. Since Clostridium Toxin A (Botox-A) had represented a cytotoxic effect on fibroblasts, this study aims to assess Botox-A cytotoxicity in both normal fibroblasts and exosome-induced CAFs.

Material And Method: the serum exosomes of 40 BC patients and 30 healthy individuals were isolated and lncRNA H19 (lnch19) levels were assessed by qRT-PCR method.