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Draft a comprehensive differential diagnosis for acute substernal chest pain in a 45-year-old male with hypertension and hyperlipidemia, diaphoresis, exertional onset, and normal initial ECG/troponin; include life-threatening causes first, key distinguishing features, and immediate diagnostic next steps.

Draft a detailed differential diagnosis for new-onset unilateral throbbing headache with visual aura and brief monocular vision loss in a 32-year-old female on oral contraceptives; include red-flag symptoms, stroke/TIA considerations, and recommended initial workup.

Draft an assessment and plan for stage-2 hypertension (BP 162/98) in an obese 52-year-old with suspected obstructive sleep apnea; include ASCVD risk estimate, lifestyle prescriptions, first-line pharmacotherapy with drug/dose/targets, baseline labs/monitoring, and 4–6 week follow-up.

Draft an assessment and plan for type 2 diabetes follow-up with A1c 9.2% on metformin 1,000 mg BID and eGFR 65; compare adding a GLP-1 receptor agonist vs an SGLT2 inhibitor, address weight loss goals, hypoglycemia education, vaccinations, and micro/macrovascular screening.

Draft a history and physical for a patient presenting with chest pain, including HPI using OLDCARTS, pertinent ROS, PMH/meds/allergies, FH/SH, focused cardiac/pulmonary exam, initial labs and imaging orders, prioritized differential, HEART score risk stratification, and early management.

Draft a history and physical for a new patient with progressive exertional dyspnea, orthopnea, and bilateral leg edema; include differential (heart failure, COPD, PE, anemia, renal disease), targeted exam maneuvers, and first-line diagnostics and management.

Draft a progress note for COPD follow-up two weeks after an acute exacerbation treated with prednisone and antibiotics; include symptom trajectory, CAT score (if available), inhaler technique/adherence, oxygen needs, spirometry plan, smoking cessation counseling, and return precautions.

Draft a progress note for post-operative day 2 after total knee arthroplasty; include pain control strategy, DVT prophylaxis, PT/OT milestones, wound status, bowel/urinary function, labs/vitals review, complications screening, and discharge readiness.

Draft a discharge summary for community-acquired pneumonia admission; include admission/discharge dates, presenting symptoms, radiology/labs, pathogen if identified, inpatient therapies and response, discharge medications with durations, pending tests, follow-up appointments, and return precautions.

Draft a discharge summary for myocardial infarction managed with PCI and drug-eluting stent placement; include cath findings, complications, inpatient course, discharge medications (DAPT, statin, beta-blocker, ACEi/ARB), cardiac rehab referral, and follow-up plan.

Draft discharge instructions for a patient hospitalized with acute decompensated heart failure; include daily weights, sodium and fluid restriction amounts, medication list with dosing, signs of worsening heart failure, follow-up appointments, and lab monitoring plan.

Draft discharge instructions for an asthma exacerbation; include controller and reliever regimen, steroid taper schedule, spacer technique, trigger avoidance, a written asthma action plan, return precautions, and follow-up timing.

Draft a patient handout on managing high blood pressure in plain language; explain what BP numbers mean, key lifestyle steps (DASH diet, sodium limits, alcohol moderation), home BP monitoring instructions, medication adherence tips, and when to call the doctor.

Draft a patient handout for type 2 diabetes education in plain language; cover A1c goals, the plate method, physical activity targets, self-monitoring of blood glucose, hypoglycemia signs and the 15-15 rule, foot care basics, and a vaccination checklist.

Draft a summary of the latest CDC and WHO guidelines for managing community-acquired pneumonia in adults, including empiric antibiotic choices, duration of therapy, and follow-up recommendations.

Draft a plain-language overview of the ADA and AACE guidelines for diabetes management, focusing on A1c goals, weight management, and the use of GLP-1 receptor agonists and SGLT2 inhibitors.

Draft a summary of the 2024 USPSTF breast cancer screening recommendations, including updated screening intervals, risk-based approaches, and the role of MRI for high-risk patients.

Draft a concise summary of NCCN guidelines for melanoma management, including staging, surgical margins, adjuvant therapy, and checkpoint inhibitor recommendations.

Draft treatment alternatives for community-acquired MRSA skin infections in patients allergic to sulfa drugs; include oral and IV options, dosing, and duration.

Draft treatment alternatives for patients with type 2 diabetes who are unable to tolerate GLP-1 receptor agonists due to nausea; include medication substitutions and lifestyle recommendations.

Draft a summary of options for treating refractory depression, comparing ketamine infusions, transcranial magnetic stimulation (TMS), and electroconvulsive therapy (ECT).

Draft treatment options for advanced prostate cancer, including hormonal therapy, radiopharmaceuticals, and novel androgen receptor pathway inhibitors.

Draft a summary of recent research on mRNA vaccine technology beyond COVID-19, including applications in oncology and autoimmune disease prevention.

Draft an easy-to-understand overview of long COVID research, summarizing major symptoms, hypothesized mechanisms, and emerging treatment approaches.

Draft a summary of current research on Alzheimer’s disease biomarkers, including amyloid and tau imaging, and discuss how they influence diagnosis and trial design.

Draft an explanation of the interaction between warfarin and antibiotics such as ciprofloxacin or TMP-SMX, including INR effects and management recommendations.

Draft a summary evaluating drug interactions for patients taking Paxlovid and common cardiovascular drugs; include mechanism and recommended dose adjustments.

Draft a summary of the common and serious side effects of semaglutide, including GI intolerance, gallbladder disease, and thyroid-related warnings.

Draft an overview of potential side effects associated with long-term corticosteroid use, including osteoporosis, glucose intolerance, and adrenal suppression.

Draft a summary of essential lab tests to order in suspected acute pancreatitis, including amylase, lipase, liver enzymes, and metabolic panels, with interpretation guidance.

Draft laboratory workup recommendations for suspected hypothyroidism, including TSH, free T4, thyroid antibodies, and when to consider secondary causes.

Draft an explanation of which labs should be monitored in patients receiving methotrexate therapy, including CBC, LFTs, renal function, and frequency of monitoring.

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Research Article: Engineered CAR-T extracellular vesicles loaded with miR-17-5p inhibitor suppress hepatocellular carcinoma progression

Date Published: 2026-09-16

Abstract:
Hepatocellular carcinoma (HCC) immune escape is co-driven by tumor malignant proliferation and an immunosuppressive tumor microenvironment, characterized by frequently impaired natural killer (NK) cell function. Previous research indicated that HCC cell-secreted extracellular vesicles (EVs) deliver miR-17-5p, inhibiting the RUNX1 pathway and downregulating the activating receptor NKG2D in NK cells, which ultimately results in NK cell dysfunction. Although chimeric antigen receptor (CAR)-T therapy has achieved remarkable efficacy in hematological malignancies, it encounters significant challenges in treating solid tumors, including HCC. Recent studies have confirmed that CAR-T cell–derived EVs (CAR-T EVs) retain CAR targeting specificity and carry cytotoxic effectors such as granzyme B and perforin, demonstrating independent antitumor potential. This study aimed to develop engineered CAR-T EVs loaded with a miR-17-5p inhibitor (EV-miR inhibitor) and evaluate their combined therapeutic efficacy against HCC through direct tumor cytotoxicity and restoration of NK cell function. This study constructed NKG2D-targeted third-generation CAR-T cells, isolated CAR-T EVs via ultracentrifugation, characterized EV properties using multiple assays, and generated engineered CAR-T EVs loaded with a miR-17-5p inhibitor (EV-miR inhibitor). The therapeutic effects of this system against HCC were verified both in vitro and in a zebrafish HCC xenograft model. CAR-T EVs exhibited characteristic cup-shaped morphology and robust expression of canonical EV markers together with the engineered NKG2D extracellular domain. Results indicated that CAR-T EVs entered HCC cells and exhibited concentration-dependent cytotoxicity against HCC cells without affecting the viability of normal hepatocytes. The loading of the miR-17-5p inhibitor was efficient, and the procedure did not alter the morphology, particle size, or marker expression of CAR-T EVs. EV-miR inhibitor effectively restored NKG2D and RUNX1 expression in miR-17-5p-overexpressing NK cells, significantly enhancing NK cell cytotoxicity against HCC and promoting IFN-? secretion in vitro . In vivo experiments further confirmed that EV-miR inhibitor treatment markedly enhanced the antitumor activity of NK cells, leading to significant tumor growth inhibition in zebrafish xenografts. In conclusion, this study demonstrates that NKG2D-targeted CAR-T EVs exert combined anti-HCC activities through direct tumor cytotoxicity and restoration of NK cell function, providing a novel immunotherapeutic strategy for HCC.

Introduction:
Hepatocellular carcinoma (HCC) immune escape is co-driven by tumor malignant proliferation and an immunosuppressive tumor microenvironment, characterized by frequently impaired natural killer (NK) cell function. Previous research indicated that HCC cell-secreted extracellular vesicles (EVs) deliver miR-17-5p, inhibiting the RUNX1 pathway and downregulating the activating receptor NKG2D in NK cells, which ultimately results in NK cell dysfunction. Although chimeric antigen receptor (CAR)-T therapy has achieved…

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