Publications by authors named "Keren Zhou"

Long-term durable remission in patients with B cell malignancies following chimeric antigen receptor (CAR)-T cell immunotherapy remains unsatisfactory, often due to antigen escape. Malignant B cell transformation and oncogenic growth relies on efficient ATP synthesis, although the underlying mechanisms remain unclear. Here, we report that YTHDF2 facilitates energy supply and antigen escape in B cell malignancies, and its overexpression alone is sufficient to cause B cell transformation and tumorigenesis.

View Article and Find Full Text PDF

Aims: The study aims to examine the outcome of replacement of prandial insulin with once-weekly subcutaneous semaglutide in people with type 2 diabetes reasonably controlled on multiple daily insulin injections (MDI).

Materials And Methods: This single-centre, randomised, open-label trial enrolled a statistically predetermined sample of 60 adults with HbA1c ≤7.5% (58 mmol/mol) receiving MDI, with a total daily dose (TDD) ≤120 units/day.

View Article and Find Full Text PDF

Fms-like tyrosine kinase 3 (FLT3) mutations, present in over 30% of acute myeloid leukemia (AML) cases and dominated by FLT3-internal tandem duplication (FLT3-ITD), are associated with poor outcomes in patients with AML. While tyrosine kinase inhibitors (TKIs; e.g.

View Article and Find Full Text PDF

Aggregated deposits of the protein α-synuclein and depleting levels of dopamine in the brain correlate with Parkinson's disease development. Treatments often focus on replenishing dopamine in the brain; however, the brain might not be the only site requiring attention. Aggregates of α-synuclein appear to accumulate in the gut years prior to the onset of any motor symptoms.

View Article and Find Full Text PDF
Article Synopsis
  • Graphene is highlighted as a key nanomaterial for healthcare, particularly for creating portable electroanalytical devices that are crucial for point-of-care testing and remote monitoring, especially in light of the COVID-19 pandemic.
  • The review covers the synthesis methods for producing large-scale graphene, its integration into various device manufacturing techniques, and its adaptable properties, making it ideal for health-related applications.
  • Furthermore, it discusses the potential of graphene-based devices in advancing disease detection and management while addressing the challenges that need to be overcome for their clinical implementation.
View Article and Find Full Text PDF
Article Synopsis
  • * Results showed that 20% achieved short-term and 15% long-term insulin independence, with higher islet equivalents per kg (IEQ) and lower basal insulin usage linked to better outcomes.
  • * The findings suggest that both insulin independence periods correlate with islet transplant metrics and could help clinicians set realistic glycemic expectations for patients after TPIAT.
View Article and Find Full Text PDF

In patients with primary hyperaldosteronism (PA), adrenal vein sampling (AVS) can identify patients suitable for unilateral adrenalectomy. However, in AVS with an indeterminate aldosterone-to-cortisol lateralization (ACL) ratio of 3.0-4.

View Article and Find Full Text PDF

Up to 80% of the human genome produces "dark matter" RNAs, most of which are noncapped RNAs (napRNAs) that frequently act as noncoding RNAs (ncRNAs) to modulate gene expression. Here, by developing a method, NAP-seq, to globally profile the full-length sequences of napRNAs with various terminal modifications at single-nucleotide resolution, we reveal diverse classes of structured ncRNAs. We discover stably expressed linear intron RNAs (sliRNAs), a class of snoRNA-intron RNAs (snotrons), a class of RNAs embedded in miRNA spacers (misRNAs) and thousands of previously uncharacterized structured napRNAs in humans and mice.

View Article and Find Full Text PDF

Aims: Osteopontin (OPN) has demonstrated neuroprotective effects in various stroke models. Its role in neuroinflammation after brain injury remains to be elucidated. This study aims to clarify the effect of OPN on neuroinflammation, particularly on the functional states of microglia after subarachnoid hemorrhage (SAH).

View Article and Find Full Text PDF

Polyethylene terephthalate (PET) is a widely used packaging material and has high value in recycling. However, under China's dominant informal recycling system, most PET bottles are downcycled into fibers. The deposit-refund system (DRS) is considered a feasible mechanism to facilitate the high-value recycling of PET bottles.

View Article and Find Full Text PDF
Article Synopsis
  • mRNA methylation, specifically methyladenosine (mA), plays a crucial role in regulating gene expression and is linked to various processes, including cancer development.
  • The study identifies YTHDF2 as being overexpressed in acute myeloid leukemia (AML) patients, where it promotes the maturation of the miR-126-3p, a microRNA associated with cancer progression in AML.
  • Findings suggest that targeting the YTHDF2/miR-126 pathway could be a potential therapeutic strategy for treating AML, highlighting the role of mA in miRNA processing and tumorigenesis.
View Article and Find Full Text PDF
Article Synopsis
  • N-methylguanosine (mG) modification is found not only at the mRNA 5' cap but also internally in mRNAs, and its specific role remains unclear.
  • Recent research shows that internal mG is recognized by Quaking proteins (QKIs), with over 1,000 mRNA targets identified that feature a specific "GANGAN" motif.
  • QKI7 interacts with the core protein G3BP1 to transport mG-modified transcripts into stress granules, influencing mRNA stability and translation, particularly affecting cancer cell responses to chemotherapy.
View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to assess how diabetes medications like metformin, DPP-4 inhibitors, and insulin affect COVID-19 hospitalization outcomes in type 2 diabetes patients, focusing on ICU admissions, ventilation needs, renal issues, and mortality.
  • Through a retrospective analysis of 529 hospitalized patients, it was found that neither metformin nor DPP-4 inhibitors impacted ICU admissions, ventilation requirements, or mortality rates, while insulin use was linked to more ICU admissions.
  • The results suggest that in this specific group, insulin may lead to higher ICU admission rates, but metformin and DPP-4 inhibitors did not show significant effects on critical health outcomes during COVID-19.
View Article and Find Full Text PDF
Article Synopsis
  • Although childhood B cell acute lymphoblastic leukemia (B-ALL) has an over 80% survival rate, the prognosis drops to 30% for older or relapsed patients, necessitating better treatments.
  • This study identifies the TET1 protein, which is overexpressed in B-ALL and functions as an oncogene, as it can transform normal B cells into leukemia in mice.
  • Targeting TET1 signaling through pharmacological inhibitors shows promise in reducing B-ALL cell viability and progression, particularly when combined with other treatments like AZD0156 and vincristine.
View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to assess how common non-alcoholic fatty liver disease (NAFLD) is in adults with type 1 diabetes (T1DM) and identify associated clinical risk factors.
  • Researchers analyzed data from 447 T1DM patients, finding high prevalence rates of liver steatosis (about 61% based on one score and 52% based on another), mostly in those with obesity, but very few had undergone liver assessments.
  • Key risk factors linked to steatosis included being over 40 years old, having hypertension, and dyslipidemia, while advanced fibrosis was rarely diagnosed, highlighting a gap in liver disease evaluation and treatment for these patients.
View Article and Find Full Text PDF

As an easily disposable substrate with a microporous texture, paper is a well-suited, generic substrate to build analytical devices for studying bacteria. Using a multi-pass lasing process, cellulose-based laser-induced graphene (cLIG) with a sheet resistance of 43.7 ± 2.

View Article and Find Full Text PDF

Non-coding RNAs (ncRNAs) are emerging as key regulators of various biological processes. Although thousands of ncRNAs have been discovered, the transcriptional mechanisms and networks of the majority of ncRNAs have not been fully investigated. In this study, we updated ChIPBase to version 3.

View Article and Find Full Text PDF

2'-O-methylation (Nm) is one of the most abundant RNA epigenetic modifications and plays a vital role in the post-transcriptional regulation of gene expression. Current Nm mapping approaches are normally limited to highly abundant RNAs and have significant technical hurdles in mRNAs or relatively rare non-coding RNAs (ncRNAs). Here, we developed a new method for enriching Nm sites by using RNA exoribonuclease and periodate oxidation reactivity to eliminate 2'-hydroxylated (2'-OH) nucleosides, coupled with sequencing (Nm-REP-seq).

View Article and Find Full Text PDF

N-Methyladenosine (mA) modification and its modulators play critical roles and show promise as therapeutic targets in human cancers, including acute myeloid leukemia (AML). IGF2BP2 was recently reported as an mA binding protein that enhances mRNA stability and translation. However, its function in AML remains largely elusive.

View Article and Find Full Text PDF