Objective: To develop lipid nanoparticles that deliver mRNA to natural killer (NK) cells in vivo and assess their effects in mouse models of cancer and autoimmu
MIT researchers developed antibody-targeted lipid nanoparticles that deliver mRNA to NK cells and generate CAR NK cells in vivo in mice.
The nanoparticles achieved delivery efficiencies of up to approximately 80% in mice, while CAR expression peaked at 24 hours and was nearly undetectable by 72 hours.
Five doses of CD19 CAR mRNA nanoparticles produced complete remission in all five mice with B-cell lymphoma, with efficacy comparable to externally manufactured CAR NK cells.
In mice, the platform also showed activity against T-cell leukemia and melanoma, while CD3 CAR mRNA with interleukin-15 reduced autoreactive T cells and liver damage in autoimmune hepatitis.
Repeated nanoparticle dosing was generally well tolerated in mice, although researchers detected antibodies against the targeting fragments.
In a cross-sectional analysis of 479 active-duty US Army men, 25.7% had morning testosterone concentrations below 300 ng/dL and 14.7% were below 264 ng/dL.
The estimates corresponded to approximately 100,691 men below 300 ng/dL and 57,788 below 264 ng/dL across the active-duty Army.
Low testosterone concentrations were more common among men aged 30 years or older, and age and BMI were associated with higher odds of concentrations below either threshold.
Among nonobese men aged 19 to 39 years, 9.7% had testosterone concentrations below 264 ng/dL, corresponding to an estimated 23,115 men Army-wide.
The authors cautioned that screening estimates do not represent hypogonadism prevalence; the study relied on a single measurement and had a cross-sectional design.
Evidence linking polyendocrine metabolic ovarian syndrome (PMOS) to dementia was inconsistent across studies.
A retrospective cohort found higher dementia prevalence and younger age at onset among patients with PMOS, whereas a prospective UK Biobank analysis found no significant association.
Studies reported mild differences in executive function, attention, and memory, which were sometimes more closely associated with glycemic control and insulin resistance than PMOS status.
Neuroimaging and biomarker studies identified brain and protein changes, but abnormalities were less pronounced in metabolically healthy patients with PMOS.
The authors wrote that any PMOS–Alzheimer disease association is likely mediated by metabolic comorbidities, while limited longitudinal evidence prevents firm conclusions about long-term risk.
Cancer diagnoses are expected to exceed 2 million annually in the United States, increasing laboratory volumes and the complexity of pathology workups.
Earlier detection may bring more subtle or borderline lesions into the diagnostic pathway, requiring pathologists to integrate morphology, molecular profiling, germline testing, and other findings.
Laboratories should design workflows alongside new tests, including automation, digital case management, system interoperability, and tissue stewardship.
Digital pathology can enable remote specialist consultation and distributed case review, helping laboratories share expertise across locations and time zones.
Integrating digital pathology, genomics, AI, and clinical information can support pathologists’ judgment, while turnaround time depends on the entire pathway from test order to accessible reporting.
The FDA approved oral solution cevimeline hydrochloride for treating dry mouth in adults with Sjögren’s disease.
The liquid formulation offers an alternative to existing cevimeline capsules for patients who have difficulty swallowing them.
The approval relied in part on existing safety and efficacy data for cevimeline capsules and did not require a full-scale clinical development program.
No new randomized efficacy trial or comparative data were reported, and the approval does not establish superior symptom relief with the oral solution.
Cosette expects the oral solution to be commercially available in the United States by the end of 2026.
Objective: The article describes CANDI, a CRISPR-based platform designed to identify mycobacterial species more rapidly and distinguish tuberculosis from nontub
CANDI combines broad-range DNA amplification with species-specific CRISPR recognition to identify 15 clinically relevant mycobacterial species within hours.
The platform uses fluorescently labeled nanodroplets to identify multiple mycobacterial species simultaneously.
In evaluation, CANDI identified mixtures of up to five species, including closely related organisms in the Mycobacterium abscessus and Mycobacterium avium complexes.
Clinical testing showed high agreement with culture-based identification, and CANDI detected some organisms missed by conventional methods.
Molecular detection cannot distinguish active infection from colonization, and manual workflow steps and the need for further validation remain barriers to routine use.
Objective: The article examines the objective, findings, and clinical context described in Mass Spectrometry Imaging Maps Intact Proteins in Tissue. Approach: S
A nano-DESI mass spectrometry imaging protocol mapped intact protein forms in tissue at approximately 10-μm spatial resolution.
The workflow uses ethanol and chloroform washes to remove lipids and precipitate proteins, limiting ion suppression and protein movement.
A shear-force probe stabilizes the liquid bridge and maintains the sampling tip’s distance from the tissue surface.
Mouse brain images showed spatial distributions of proteoforms, including modified myelin basic protein and cytochrome c oxidase subunit 6B1.
Current nano-DESI experiments typically detect tens of proteoforms, with sensitivity, ionization efficiency, spectral processing, and fragmentation identified as areas for improvement.
Objective: The article examines the objective, findings, and clinical context described in FDA clears new generic weekly menopause patch. Approach: Product: Zyd
Objective: The article examines the objective, findings, and clinical context described in Doctor convicted in 2 million–pill stimulant scheme. Approach: Case:
A federal jury convicted Michigan physician Jonathan Decker of conspiring to distribute controlled substances and 6 counts of distribution.
According to the DOJ, Decker prescribed more than 2 million stimulant pills through Done Global’s online ADHD platform without examining patients.
The DOJ said Decker prescribed stimulants to patients with substance use disorders and serious psychiatric conditions, including a patient with schizophrenia.
Decker received more than $1 million for prescribing medications and thousands of dollars in referral bonuses for recruiting medical professionals.
Decker faces a maximum statutory penalty of 140 years in prison; no sentencing date has been scheduled.
Objective: The article examines the objective, findings, and clinical context described in Rising Endometrial Cancer Incidence: Clinical Priorities in Evaluati
Endometrial cancer incidence is rising in the United States and globally, with population aging and obesity identified as important contributors.
Any postmenopausal bleeding, including spotting, warrants evaluation; new or unexplained bleeding-pattern changes in younger patients also merit assessment.
Initial evaluation may include bleeding history, pelvic examination and transvaginal ultrasound, but diagnosis requires endometrial tissue sampling.
Treatment depends on histology and stage; early-stage disease may be treated with hysterectomy, while advanced disease may require multimodality therapy.
Carefully selected patients with certain early-stage endometrioid cancers may consider fertility-sparing treatment with close surveillance.
The FDA approved bepirovirsen as the first antisense oligonucleotide therapy for chronic hepatitis B in eligible adults without cirrhosis.
Eligible adults must have received nucleos(t)ide analogue therapy for at least 6 months, have suppressed HBV DNA, and have HBsAg levels of 3,000 IU/mL or less.
Bepirovirsen is given by subcutaneous injection alongside existing antiviral therapy for up to 24 weeks and targets HBV RNA to reduce viral protein production.
In pooled phase 3 trial results, functional cure occurred in 19% of bepirovirsen recipients and 0% of placebo recipients after treatment discontinuation.
Bepirovirsen carries boxed warnings for serious liver reactions and low platelet counts, including potentially life-threatening bleeding.
Objective: To test whether prime editing could repair a disease-causing GATA2 mutation in patient-derived blood stem and progenitor cells. Approach: Editing str
Prime editing repaired a disease-causing seven-base-pair GATA2 deletion in patient-derived CD34-positive blood stem and progenitor cells.
After optimization, editing exceeded 70% and increased functional GATA2 alleles from 50% to as much as 77%, with higher GATA2 protein expression.
Edited cells retained colony-forming capacity and achieved up to 2.73-fold greater engraftment than untreated cells in immunodeficient mice.
Editing persisted in repopulating stem cells 16 weeks after transplantation, with no editing detected at the 20 highest-ranked predicted off-target sites.
PASSIGE insertion of a larger corrective GATA2 sequence reached 4.6% of alleles, and the researchers said further optimization is needed.
Robert Wethman says analytical science supports manufacturing with robust methods and increasingly shapes development and manufacturing timelines and outcomes.
He identifies simultaneous growth in molecular, modality, and process complexity, alongside compressed timelines, as a major source of analytical bottlenecks.
Wethman says real-time spectroscopy implementation requires early collaboration, shared goals, high-quality data, and attention to operational impact and support.
He reports that at-line spectroscopy has provided a practical bridge at BMS-owned and CDMO sites while teams evaluate full real-time monitoring.
Wethman cites regulated-environment readiness among instrument vendors and expanding AI-based modeling as important developments in analytical manufacturing.
Objective: The article examines the objective, findings, and clinical context described in Wait Times for Neurology Appointments in the Cognitive Care Pathway.
In a cross-sectional telephone survey of 150 US neurology clinics, the mean wait for the earliest memory-concern appointment was 17.9 weeks.
Specialized clinics had a longer mean wait than community clinics: 21.1 weeks vs 15.6 weeks.
The estimated waits exceeded prior claims-based estimates of about 7 weeks after clinician referral, but differences in referral patterns and measurement methods may explain the gap.
Strategies to address neurologist waits include improving referral preparation and triage, expanding the workforce, and advocating for policy changes.
Timely cognitive care also depends on addressing upstream barriers, including stigma, limited clinician confidence, inconsistent cognitive testing, and time and financial constraints.
Objective: The article examines the objective, findings, and clinical context described in Supporting Families of Injured Children Before Interhospital Transfer
Pediatric regionalization and limited pediatric readiness leave many emergency departments with little local pediatric expertise.
Among 595 injured children, telephone and telemedicine consultation did not differ significantly in primary outcomes, including parental distress and transfer frequency.
Telemedicine was associated with better parental ratings of the emergency department discharge or transfer experience.
Lower transfer frequency is not necessarily preferable because many transfers may be clinically necessary; safety and outcomes data are needed to assess transfer-prevention strategies.
Further research should address family-centered support before transfer, including the needs of families of the most severely injured children and those facing social needs.
The correction updates the reported baseline HS disease-duration range to 9.7 (0.4−49.1)−10.8 (0.4−57.7) years.
The revised Fig. 1 legend states that three STOP-HS2 patients stopped treatment after week 12: two by physician decision and one by withdrawal.
Fig. 1 footnote d now states that one patient withdrew after completing treatment through week 12.
In Table 2, STOP-HS1 75-mg P values for the Skin Pain NRS outcomes carry superscript f instead of e.
The correction also revises Extended Data Fig. 5e,f and reorders the Week 12 values in Supplementary Table 6A; the HTML and PDF versions were corrected.
Objective: The article examines the objective, findings, and clinical context described in Mailed Fecal Immunochemical Testing: Moving From Efficacy to Real-Wor
Mailed FIT outreach increases colorectal cancer screening participation, particularly among underserved populations, and can be delivered without an in-person visit.
In a cluster-randomized trial across Southern California FQHCs, mailed FIT outreach sustained screening rates near 40% over 3 years.
Screening coverage in intervention clinics exceeded control coverage by 11 percentage points in years 1 and 2, but by 3 points at year 3, a nonsignificant difference.
Incomplete outreach in the final year and a possible postpandemic screening rebound in control clinics may explain the smaller year 3 difference, but their contributions are unknown.
Effective FIT outreach depends on context, including organized eligibility registers, proactive invitations, health system infrastructure, and sufficient resources.