Publications by authors named "K-S Cho"

The advent of spatial transcriptomics and spatial proteomics have enabled profound insights into tissue organization to provide systems-level understanding of diseases. Both technologies currently remain largely independent, and emerging same slide spatial multi-omics approaches are generally limited in plex, spatial resolution, and analytical approaches. We introduce IN-situ DEtailed Phenotyping To High-resolution transcriptomics (IN-DEPTH), a streamlined and resource-effective approach compatible with various spatial platforms.

View Article and Find Full Text PDF

Protein biomarkers are associated with mortality in cardiovascular disease, but their effect on predicting respiratory and all-cause mortality is not clear. We tested whether a protein risk score (protRS) can improve prediction of all-cause mortality over clinical risk factors in smokers. We utilized smoking-enriched (COPDGene, LSC, SPIROMICS) and general population-based (MESA) cohorts with SomaScan proteomic and mortality data.

View Article and Find Full Text PDF
Article Synopsis
  • Genetic studies have highlighted the need for more diverse research on plasma fibrinogen levels, as previous studies largely focused on Europeans, leading to gaps in understanding and missing heritability.
  • By analyzing data from whole-genome sequencing and genotype data from large cohorts, researchers identified 18 genetic loci related to fibrinogen levels, some of which are more common in African populations and include variants that may impact protein function.
  • The study's findings indicate a connection between fibrinogen levels and various health conditions, emphasizing the importance of whole-genome sequencing in discovering genetic factors in diverse populations and enhancing knowledge about fibrinogen regulation.
View Article and Find Full Text PDF
Article Synopsis
  • * Liquid chromatography-mass spectrometry (LC-MS) has identified many potential protein biomarkers for PDAC, but few have been successfully utilized in clinics due to a lack of focus on practical implementation needs during development.
  • * The authors developed a multi-marker diagnostic panel for PDAC using a robust LC-MS protocol, incorporating 12 validated protein biomarkers and simple serum sample preparation to enhance clinical applicability and adoption.
View Article and Find Full Text PDF
Article Synopsis
  • A study was conducted to develop deep learning algorithms for the automatic segmentation of white matter hyperintensity (WMH) lesions in patients with cerebral infarction, involving a large dataset of 8,421 patients from multiple hospitals in Korea.
  • Two models, 2D UNet and SE-Unet, were trained and validated using FLAIR MRI images, with performance measured against a human-segmented gold standard using various statistical metrics.
  • Results showed that while both models had good performance, the SE-Unet outperformed the UNet with higher average Dice Similarity Coefficients (DSCs) in both internal and external validations, indicating it was more reliable for WMH segmentation.
View Article and Find Full Text PDF
Article Synopsis
  • - SARS-CoV-2 is continuously evolving, posing challenges to existing vaccines and treatments, which has led to the development of a new pipeline for creating effective VHH antibodies and bispecifics to neutralize various virus variants.
  • - High-affinity VHH antibodies were discovered through targeted phage library techniques, resulting in a bispecific construct that effectively combats multiple SARS-CoV-2 variants, showing enhanced resistance to antigenic escape.
  • - The new tetravalent bispecific platform enables speedy development and production of antibodies, providing flexible and potent responses to emerging variants, making it a promising method for ongoing viral management.
View Article and Find Full Text PDF
Article Synopsis
  • The KEYNOTE-590 study found that combining pembrolizumab with chemotherapy significantly improved survival rates and overall health outcomes for patients with advanced esophageal cancer compared to chemotherapy alone.
  • A health-related quality of life analysis involving 730 patients showed that those receiving pembrolizumab plus chemotherapy experienced less dysphagia and pain compared to those on placebo plus chemotherapy, although overall quality of life scores were similar.
  • The study concluded that pembrolizumab plus chemotherapy not only maintained quality of life after 18 weeks but also demonstrated effectiveness, supporting its use as a first-line treatment for advanced esophageal cancer.
View Article and Find Full Text PDF

The Hippo pathway controls organ size and homeostasis and is linked to numerous diseases, including cancer. The transcriptional enhanced associate domain (TEAD) family of transcription factors acts as a receptor for downstream effectors, namely yes-associated protein (YAP) and transcriptional co-activator with PDZ-binding motif (TAZ), which binds to various transcription factors and is essential for stimulated gene transcription. YAP/TAZ-TEAD facilitates the upregulation of multiple genes involved in evolutionary cell proliferation and survival.

View Article and Find Full Text PDF

Background: Adjustment for race is discouraged in lung-function testing, but the implications of adopting race-neutral equations have not been comprehensively quantified.

Methods: We obtained longitudinal data from 369,077 participants in the National Health and Nutrition Examination Survey, U.K.

View Article and Find Full Text PDF

Clonal hematopoiesis (CH) is characterized by the acquisition of a somatic mutation in a hematopoietic stem cell that results in a clonal expansion. These driver mutations can be single nucleotide variants in cancer driver genes or larger structural rearrangements called mosaic chromosomal alterations (mCAs). The factors that influence the variations in mCA fitness and ultimately result in different clonal expansion rates are not well understood.

View Article and Find Full Text PDF

Heart failure (HF) is a well-described final common pathway for a broad range of diseases however substantial confusion exists regarding how to describe, study, and track these underlying etiologic conditions. We describe (1) the overlap in HF etiologies, comorbidities, and case definitions as currently used in HF registries led or managed by members of the global HF roundtable; (2) strategies to improve the quality of evidence on etiologies and modifiable risk factors of HF in registries; and (3) opportunities to use clinical HF registries as a platform for public health surveillance, implementation research, and randomized registry trials to reduce the global burden of noncommunicable diseases. Investment and collaboration among countries to improve the quality of evidence in global HF registries could contribute to achieving global health targets to reduce noncommunicable diseases and overall improvements in population health.

View Article and Find Full Text PDF

Mammalian switch/sucrose nonfermentable (mSWI/SNF) ATPase degraders have been shown to be effective in enhancer-driven cancers by functioning to impede oncogenic transcription factor chromatin accessibility. Here, we developed AU-24118, an orally bioavailable proteolysis-targeting chimera (PROTAC) degrader of mSWI/SNF ATPases (SMARCA2 and SMARCA4) and PBRM1. AU-24118 demonstrated tumor regression in a model of castration-resistant prostate cancer (CRPC) which was further enhanced with combination enzalutamide treatment, a standard of care androgen receptor (AR) antagonist used in CRPC patients.

View Article and Find Full Text PDF

The biceps rerouting (BR) augmentation technique has emerged as a useful option for the repair of rotator cuff tears when the torn tendon does not cover the footprint or can only be reduced under excessive tension. BR offers several advantages over traditional methods. It is an all-inside joint procedure, eliminating the need for skin incisions other than those for the arthroscopic portal, thus reducing operative time and infection risk.

View Article and Find Full Text PDF

Mammalian switch/sucrose non-fermentable (mSWI/SNF) ATPase degraders have been shown to be effective in enhancer-driven cancers by functioning to impede oncogenic transcription factor chromatin accessibility. Here, we developed AU-24118, a first-in-class, orally bioavailable proteolysis targeting chimera (PROTAC) degrader of mSWI/SNF ATPases (SMARCA2 and SMARCA4) and PBRM1. AU-24118 demonstrated tumor regression in a model of castration-resistant prostate cancer (CRPC) which was further enhanced with combination enzalutamide treatment, a standard of care androgen receptor (AR) antagonist used in CRPC patients.

View Article and Find Full Text PDF
Article Synopsis
  • Novel oral anticoagulants (NOACs) are recommended for stroke prevention in patients with acute ischemic stroke (AIS) and atrial fibrillation (AF), but their real-world effectiveness is unclear.
  • This study analyzed data from nearly 13,000 patients over eight years to examine trends in clinical outcomes related to AIS and AF, particularly looking at how NOAC prescriptions influenced these trends.
  • Results showed that NOAC prescriptions rose significantly from 0% to 75.6%, correlating with a decrease in 1-year incidences of major adverse outcomes from 28.3% to 21.7%, suggesting NOACs may play a key role in improving patient outcomes.
View Article and Find Full Text PDF

This study aimed to report the clinical outcomes and risk factors for survival of patients with low-risk early-stage human papillomavirus-associated (HPVA) endocervical adenocarcinoma (EAC) treated with surgery alone. This retrospective study obtained the clinicopathological data of patients with early-stage HPVA EAC who underwent surgery between 2012 and 2018. The Silva pattern of invasion was determined by reviewing pathology slides.

View Article and Find Full Text PDF

The objective of this study was to investigate the effect of low-molecular-weight fish collagen (valine-glycine-proline-hydroxyproline-glycine-proline-alanine-glycine; LMWCP) on HO- or LPS-treated primary chondrocytes and monoiodoacetate (MIA)-induced osteoarthritis rat models. Our findings indicated that LMWCP treatment exhibited protective effects by preventing chondrocyte death and reducing matrix degradation in both HO-treated primary chondrocytes and cartilage tissue from MIA-induced osteoarthritis rats. This was achieved by increasing the levels of aggrecan, collagen type I, collagen type II, TIMP-1, and TIMP-3, while simultaneously decreasing catabolic factors such as phosphorylation of Smad, MMP-3, and MMP-13.

View Article and Find Full Text PDF
Article Synopsis
  • - Lactic acid bacteria (LAB) have been identified as probiotics with health benefits, and a newly isolated strain shows strong anti-inflammatory properties by enhancing the endoplasmic reticulum stress pathway in cells under inflammatory conditions.
  • - The study explored the effects of lactic acid bacteria-derived extracellular vesicles (LpEVs) on skin cells, finding that they improved inflammation-related skin issues by promoting cell growth and collagen production while reducing inflammatory factors.
  • - LpEVs demonstrated effective skin penetration within 24 hours and showed strong antioxidant properties, indicating their potential as antiaging and skin-repair agents against inflammation-induced skin problems.
View Article and Find Full Text PDF

Smoking is the leading risk factor for chronic obstructive pulmonary disease (COPD) worldwide, yet many people who never smoke develop COPD. We perform a longitudinal analysis of COPD in the UK Biobank to derive and validate the Socioeconomic and Environmental Risk Score which captures additive and cumulative environmental, behavioral, and socioeconomic exposure risks beyond tobacco smoking. The Socioeconomic and Environmental Risk Score is more predictive of COPD than smoking status and pack-years.

View Article and Find Full Text PDF

Human embryonic stem cell (hESC)-derived midbrain dopaminergic (mDA) cell transplantation is a promising therapeutic strategy for Parkinson's disease (PD). Here, we present the derivation of high-purity mDA progenitors from clinical-grade hESCs on a large scale under rigorous good manufacturing practice (GMP) conditions. We also assessed the toxicity, biodistribution, and tumorigenicity of these cells in immunodeficient rats in good laboratory practice (GLP)-compliant facilities.

View Article and Find Full Text PDF

Background And Purpose: Time-resolved MRA enables collateral evaluation in acute ischemic stroke with large-vessel occlusion; however, a low SNR and spatial resolution impede the diagnosis of vascular occlusion. We developed a CycleGAN-based deep learning model to generate high-resolution synthetic TOF-MRA images using time-resolved MRA and evaluated its image quality and clinical efficacy.

Materials And Methods: This retrospective, single-center study included 397 patients who underwent both TOF- and time-resolved MRA between April 2021 and January 2022.

View Article and Find Full Text PDF

Non-alcoholic steatohepatitis (NASH) is a complex disease resulting from chronic liver injury associated with obesity, type 2 diabetes, and inflammation. Recently, the importance of developing multi-target drugs as a strategy to address complex diseases such as NASH has been growing; however, their manufacturing processes remain time- and cost-intensive and inefficient. To overcome these limitations, we developed UniStac, a novel enzyme-mediated conjugation platform for multi-specific drug development.

View Article and Find Full Text PDF

Targeted protein degradation (TPD) technology, such as proteolysis-targeting chimera (PROTAC), has become a new therapeutic modality. However, the degradation of undruggable proteins, such as those involved in protein-protein interactions (PPIs), using PROTAC is still limited owing to the difficulties in finding small-molecule binders of these proteins. To identify new chemical moieties that bind to the target sites of the protein of interest (POI), we conducted a site-specific and fragment-based covalent ligand screening using liquid chromatography-tandem mass spectrometry (LC-MS/MS).

View Article and Find Full Text PDF

Background: There is limited information on the delivery of acute stroke therapies and secondary preventive measures and clinical outcomes over time in young adults with acute ischemic stroke. This study investigated whether advances in these treatments improved outcomes in this population.

Methods: Using a prospective multicenter stroke registry in Korea, young adults (aged 18-50 years) with acute ischemic stroke hospitalized between 2008 and 2019 were identified.

View Article and Find Full Text PDF
Article Synopsis
  • Megabase-scale mosaic chromosomal alterations (mCAs) in blood can indicate the risk of various human diseases, and this study analyzes whole-genome sequencing data from 67,390 individuals to better understand mCA rates across different genetic backgrounds.
  • The research found that whole-genome sequencing is more effective than traditional methods for detecting mCAs, revealing that individuals of European ancestry have higher rates of autosomal mCAs and lower rates of chromosome X mCAs compared to those of African or Hispanic ancestry.
  • The study identifies three genetic loci linked to chromosome X loss and associates rare variants in specific genes (DCPS, ADM17, PPP1R16B, and TET2) with autosomal mCAs
View Article and Find Full Text PDF