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1.
Nagoya J Med Sci ; 86(2): 292-303, 2024 May.
Article de Anglais | MEDLINE | ID: mdl-38962405

RÉSUMÉ

Endothelial dysfunction is important in the pathology of pulmonary hypertension, and circulating endothelial progenitor cells (EPCs) have been studied to evaluate endothelial dysfunction. In patients with chronic thromboembolic pulmonary hypertension (CTEPH), riociguat reportedly increases the number of circulating EPCs. However, the relationship between EPC numbers at baseline and changes in clinical parameters after riociguat administration has not been fully elucidated. Here, we evaluated 27 treatment-naïve patients with CTEPH and analyzed the relationships between EPC number at diagnosis and clinical variables (age, hemodynamics, atrial blood gas parameters, brain natriuretic peptide, and exercise tolerance) before and after riociguat initiation. EPCs were defined as CD45dim CD34+ CD133+ cells and measured by flow cytometry. A low number of circulating EPCs at diagnosis was significantly correlated with increased reductions in mean pulmonary arterial pressure (mPAP) (correlation coefficient = 0.535, P = 0.004) and right atrial pressure (correlation coefficient = 0.618, P = 0.001) upon riociguat treatment. We then divided the study population into two groups according to the mPAP change: a weak-response group (a decrease in mPAP of 4 mmHg or less) and a strong-response group (a decrease in mPAP of more than 4 mmHg). The number of EPCs at diagnosis was significantly lower in the strong-response group than in the weak-response group (P = 0.022), but there were no significant differences in other clinical variables or in medication profiles. In conclusion, circulating EPC numbers could be a potential predictor of the therapeutic effect of riociguat in CTEPH patients.


Sujet(s)
Progéniteurs endothéliaux , Hypertension pulmonaire , Pyrazoles , Pyrimidines , Humains , Pyrimidines/usage thérapeutique , Pyrimidines/pharmacologie , Pyrazoles/usage thérapeutique , Pyrazoles/pharmacologie , Mâle , Femelle , Adulte d'âge moyen , Hypertension pulmonaire/traitement médicamenteux , Progéniteurs endothéliaux/effets des médicaments et des substances chimiques , Progéniteurs endothéliaux/métabolisme , Sujet âgé , Maladie chronique , Embolie pulmonaire/traitement médicamenteux , Embolie pulmonaire/sang , Résultat thérapeutique
2.
Zhonghua Xue Ye Xue Za Zhi ; 45(5): 505-508, 2024 May 14.
Article de Chinois | MEDLINE | ID: mdl-38964927

RÉSUMÉ

Systemic mastocytosis (SM) with RUNX1-RUNX1T1 positive acute myeloid leukemia (AML) is a rare myeloid tumor with no standard treatment. Two cases of SM patients with RUNX1-RUNX1T1 positive AML treated with sequential avapritinib after allogeneic hematopoietic stem cell transplantation (allo-HSCT) were reported in Henan Cancer Hospital. Mast cell in bone marrow disappeared, C-KIT mutation and RUNX1-RUNX1T1 fusion gene remained negative. Allo-HSCT sequential avapritinib is an effective treatment for SM patients with RUNX1-RUNX1T1 positive AML.


Sujet(s)
Sous-unité alpha 2 du facteur CBF , Transplantation de cellules souches hématopoïétiques , Leucémie aigüe myéloïde , Mastocytose généralisée , Humains , Leucémie aigüe myéloïde/thérapie , Leucémie aigüe myéloïde/génétique , Mastocytose généralisée/génétique , Mastocytose généralisée/thérapie , Sous-unité alpha 2 du facteur CBF/génétique , Mâle , Femelle , Adulte , Protéine-1 partenaire de translocation de RUNX1/génétique , Protéines de fusion oncogènes/génétique , Adulte d'âge moyen , Transplantation homologue , Pyrazines/administration et posologie , Pyrazoles , Pyrroles , Triazines
3.
Medicine (Baltimore) ; 103(27): e38854, 2024 Jul 05.
Article de Anglais | MEDLINE | ID: mdl-38968458

RÉSUMÉ

INTRODUCTION: Epidermolysis Bullosa Pruriginosa (EBP) is a persistent, recurring disease that seriously affects quality of life. Fewer than 100 cases of EBP have been reported to date. Numerous inflammatory dermatoses are driven by soluble inflammatory mediators, which rely on Janus kinase-signal transducer and activator of transcription (JAK-STAT) signaling, and inhibition of this pathway using Janus kinase (JAK) inhibitors might be a useful therapeutic strategy for these diseases. PATIENT CONCERNS: A male patient, 28 years of age, was admitted to our hospital because of recurrent papules, nodules, and intense itching on the trunk and extremities for 12 years. Repeated large and intense itching has seriously affected the patient normal life. DIAGNOSIS: The patient was diagnosed with EBP based on examination results. INTERVENTIONS: Oral baricitinib tablets (2 mg, once a day) + Oral desloratadine citrate disodium tablets (8.8 mg, once a day) combined with topical compound flumethasone ointment and Fucidin cream. OUTCOMES: The patient skin rashes had subsided and flattened remarkable, and his itching was markedly relieved. The visual analogue scale (VAS) itching score of the patient gradually declined from 8 to 9 points to 2 to 3 points. CONCLUSION: This study confirms that baricitinib is effective and feasible in treating EBP, especially in remarkable relieving itching, which rendered new ideas for therapeutic approaches for EBP in the future.


Sujet(s)
Azétidines , Purines , Pyrazoles , Sulfonamides , Humains , Purines/usage thérapeutique , Mâle , Pyrazoles/usage thérapeutique , Sulfonamides/usage thérapeutique , Adulte , Azétidines/usage thérapeutique , Inhibiteurs des Janus kinases/usage thérapeutique , Épidermolyse bulleuse dystrophique/traitement médicamenteux , Administration par voie orale
5.
BMC Urol ; 24(1): 135, 2024 Jul 01.
Article de Anglais | MEDLINE | ID: mdl-38951868

RÉSUMÉ

The ARASENS trial recruited 1306 men with metastatic hormone sensitive prostate cancer. It investigated the effect of androgen deprivation therapy (ADT) and systemic therapy docetaxel in combination with a third novel drug - daralutamide, compared with placebo on overall survival. Triple therapy with ADT, docetaxel and darolutamide resulted in improved overall survival rates as compared with ADT, docetaxel and placebo (HR 0.68; 95% CI, 0.57-0.80; p < 0.001). The side effect profile for both treatments was similar. This randomised, double blinded, placebo controlled study, was assessed to have a low risk of bias using the Cochrane Risk of Bias 2 tool.


Sujet(s)
Tumeurs de la prostate , Mâle , Humains , Tumeurs de la prostate/traitement médicamenteux , Tumeurs de la prostate/anatomopathologie , Tumeurs de la prostate/mortalité , Benzamides/usage thérapeutique , Essais contrôlés randomisés comme sujet , Taux de survie , Antagonistes des androgènes/usage thérapeutique , Docetaxel/usage thérapeutique , Pyrazoles
6.
Open Heart ; 11(2)2024 Jul 01.
Article de Anglais | MEDLINE | ID: mdl-38955399

RÉSUMÉ

BACKGROUND: The extent to which differences in results from Apixaban for Reduction in Stroke and Other Thromboembolic Events in Atrial Fibrillation (ARISTOTLE) and Rivaroxaban Once Daily Oral Direct Factor Xa Inhibition Compared with Vitamin K Antagonism for Prevention of Stroke and Embolism Trial (ROCKET) atrial fibrillation (AF)-the landmark trials for the approval of apixaban and rivaroxaban, respectively, for non-valvular AF-were influenced by differences in their protocols is debated. The potential influence of selection criteria on trial results was assessed by emulating these trials in data from the Global Anticoagulant Registry in the Field (GARFIELD)-AF registry. METHODS: Vitamin K antagonist (VKA) and non-vitamin K oral antagonist (NOAC) users from GARFIELD-AF were selected according to eligibility for the original ARISTOTLE or ROCKET AF trials. A propensity score overlap weighted Cox model was used to emulate trial randomisation between treatment groups. Adjusted HRs for stroke or systemic embolism (SE) within 2 years of enrolment were calculated for each NOAC versus VKA. RESULTS: Among patients on apixaban, rivaroxaban and VKA, 2570, 3560 and 8005 were eligible for ARISTOTLE, respectively, and 1612, 2005 and 4368, respectively, for ROCKET AF. When selecting for ARISTOTLE criteria, apixaban users had significantly lower stroke/SE risk versus VKA (HR 0.57; 95% CI 0.34 to 0.94) while no reduction was observed with rivaroxaban (HR 0.98; 95% CI 0.68 to 1.40). When selecting for ROCKET AF criteria, safety and efficacy versus VKA were similar across the NOACs. CONCLUSION: Apixaban and rivaroxaban showed similar results versus VKA in high-risk patients selected according to ROCKET AF criteria, whereas differences emerged when selecting for the more inclusive ARISTOTLE criteria. Our results highlight the importance of trial selection criteria in interpreting trial results and underline the problems faced in comparing treatments across rather than within clinical trials.


Sujet(s)
Fibrillation auriculaire , Inhibiteurs du facteur Xa , Sélection de patients , Pyrazoles , Pyridones , Rivaroxaban , Accident vasculaire cérébral , Humains , Fibrillation auriculaire/traitement médicamenteux , Fibrillation auriculaire/complications , Inhibiteurs du facteur Xa/usage thérapeutique , Inhibiteurs du facteur Xa/administration et posologie , Accident vasculaire cérébral/prévention et contrôle , Accident vasculaire cérébral/étiologie , Pyrazoles/usage thérapeutique , Pyridones/usage thérapeutique , Pyridones/effets indésirables , Pyridones/administration et posologie , Rivaroxaban/administration et posologie , Rivaroxaban/usage thérapeutique , Mâle , Femelle , Sujet âgé , Résultat thérapeutique , Enregistrements , Administration par voie orale , Facteurs de risque , Essais contrôlés randomisés comme sujet/méthodes , Appréciation des risques/méthodes , Anticoagulants/usage thérapeutique , Vitamine K/antagonistes et inhibiteurs
7.
Signal Transduct Target Ther ; 9(1): 181, 2024 Jul 12.
Article de Anglais | MEDLINE | ID: mdl-38992067

RÉSUMÉ

Mitotic catastrophe (MC), which occurs under dysregulated mitosis, represents a fascinating tactic to specifically eradicate tumor cells. Whether pyroptosis can be a death form of MC remains unknown. Proteasome-mediated protein degradation is crucial for M-phase. Bortezomib (BTZ), which inhibits the 20S catalytic particle of proteasome, is approved to treat multiple myeloma and mantle cell lymphoma, but not solid tumors due to primary resistance. To date, whether and how proteasome inhibitor affected the fates of cells in M-phase remains unexplored. Here, we show that BTZ treatment, or silencing of PSMC5, a subunit of 19S regulatory particle of proteasome, causes G2- and M-phase arrest, multi-polar spindle formation, and consequent caspase-3/GSDME-mediated pyroptosis in M-phase (designated as mitotic pyroptosis). Further investigations reveal that inhibitor of WEE1/PKMYT1 (PD0166285), but not inhibitor of ATR, CHK1 or CHK2, abrogates the BTZ-induced G2-phase arrest, thus exacerbates the BTZ-induced mitotic arrest and pyroptosis. Combined BTZ and PD0166285 treatment (named BP-Combo) selectively kills various types of solid tumor cells, and significantly lessens the IC50 of both BTZ and PD0166285 compared to BTZ or PD0166285 monotreatment. Studies using various mouse models show that BP-Combo has much stronger inhibition on tumor growth and metastasis than BTZ or PD0166285 monotreatment, and no obvious toxicity is observed in BP-Combo-treated mice. These findings disclose the effect of proteasome inhibitors in inducing pyroptosis in M-phase, characterize pyroptosis as a new death form of mitotic catastrophe, and identify dual inhibition of proteasome and WEE family kinases as a promising anti-cancer strategy to selectively kill solid tumor cells.


Sujet(s)
Bortézomib , Protéines du cycle cellulaire , Mitose , Proteasome endopeptidase complex , Protein-tyrosine kinases , Pyroptose , Pyroptose/effets des médicaments et des substances chimiques , Humains , Souris , Animaux , Protein-tyrosine kinases/génétique , Protein-tyrosine kinases/antagonistes et inhibiteurs , Protein-tyrosine kinases/métabolisme , Mitose/effets des médicaments et des substances chimiques , Mitose/génétique , Proteasome endopeptidase complex/métabolisme , Proteasome endopeptidase complex/génétique , Bortézomib/pharmacologie , Lignée cellulaire tumorale , Protéines du cycle cellulaire/génétique , Protéines du cycle cellulaire/antagonistes et inhibiteurs , Protéines du cycle cellulaire/métabolisme , Inhibiteurs du protéasome/pharmacologie , Pyrimidines/pharmacologie , Pyrazoles/pharmacologie , Tumeurs/traitement médicamenteux , Tumeurs/génétique , Tumeurs/anatomopathologie , Tests d'activité antitumorale sur modèle de xénogreffe , Gasdermines , Pyrimidinones
8.
Clin Adv Hematol Oncol ; 22 Suppl 5(6): 1-20, 2024.
Article de Anglais | MEDLINE | ID: mdl-38953725

RÉSUMÉ

Neurotrophic tyrosine receptor kinase (NTRK) gene fusions are implicated in various cancers, including those of the lung and thyroid. The prevalence of NTRK fusions is 0.1 to 0.3% in non-small cell lung cancer (NSCLC) and as high as 26% in pediatric papillary thyroid carcinoma. Detection methods include immunohistochemistry, fluorescence in situ hybridization, reverse transcription polymerase chain reaction, and next-generation sequencing. Management of NTRK fusion-positive lung cancer primarily involves targeted therapies, notably the tyrosine receptor kinase (TRK) inhibitors larotrectinib and entrectinib. Both agents demonstrate high response rates and durable disease control, particularly in metastatic adenocarcinoma of the lung. They are preferred as first-line treatments because of their efficacy over immunotherapy. Possible adverse events include dizziness, weight gain, neuropathy-like pain, and liver enzyme elevation. Larotrectinib and entrectinib also produce robust and durable responses in NTRK fusion-positive thyroid cancer that is refractory to radioactive iodine. Second-generation TRK inhibitors that have been designed to overcome acquired resistance are under investigation.


Sujet(s)
Indazoles , Tumeurs du poumon , Protéines de fusion oncogènes , Inhibiteurs de protéines kinases , Pyrazoles , Pyrimidines , Tumeurs de la thyroïde , Humains , Inhibiteurs de protéines kinases/usage thérapeutique , Inhibiteurs de protéines kinases/effets indésirables , Tumeurs de la thyroïde/traitement médicamenteux , Tumeurs de la thyroïde/génétique , Tumeurs de la thyroïde/anatomopathologie , Tumeurs du poumon/traitement médicamenteux , Tumeurs du poumon/génétique , Tumeurs du poumon/anatomopathologie , Indazoles/usage thérapeutique , Indazoles/effets indésirables , Pyrazoles/usage thérapeutique , Pyrazoles/effets indésirables , Protéines de fusion oncogènes/génétique , Pyrimidines/usage thérapeutique , Pyrimidines/effets indésirables , Récepteur trkA/génétique , Récepteur trkA/antagonistes et inhibiteurs , Benzamides/usage thérapeutique , Résultat thérapeutique
9.
Eur J Med Chem ; 275: 116637, 2024 Sep 05.
Article de Anglais | MEDLINE | ID: mdl-38959728

RÉSUMÉ

Life-threatening invasive fungal infections pose a serious threat to human health. A series of novel triazole derivatives bearing a pyrazole-methoxyl moiety were designed and synthesized in an effort to obtain antifungals with potent, broad-spectrum activity that are less susceptible to resistance. Most of these compounds exhibited moderate to excellent in vitro antifungal activities against Candida albicans SC5314 and 10,231, Cryptococcus neoformans 32,609, Candida glabrata 537 and Candida parapsilosis 22,019 with minimum inhibitory concentration (MIC) values of ≤0.125 µg/mL to 0.5 µg/mL. Use of recombinant Saccharomyces cerevisiae strains showed compounds 7 and 10 overcame the overexpression and resistant-related mutations in ERG11 of S. cerevisae and several pathogenic Candida spp. Despite being substrates of the C. albicans and Candida auris Cdr1 drug efflux pumps, compounds 7 and 10 showed moderate potency against five fluconazole (FCZ)-resistant fungi with MIC values from 2.0 µg/mL to 16.0 µg/mL. Growth kinetics confirmed compounds 7 and 10 had much stronger fungistatic activity than FCZ. For C. albicans, compounds 7 and 10 inhibited the yeast-to-hyphae transition, biofilm formation and destroyed mature biofilm more effectively than FCZ. Preliminary mechanism of action studies showed compounds 7 and 10 blocked the ergosterol biosynthesis pathway at Erg11, ultimately leading to cell membrane disruption. Further investigation of these novel triazole derivatives is also warranted by their predicted ADMET properties and low cytotoxicity.


Sujet(s)
Antifongiques , Candida , Tests de sensibilité microbienne , Pyrazoles , Triazoles , Antifongiques/pharmacologie , Antifongiques/synthèse chimique , Antifongiques/composition chimique , Triazoles/composition chimique , Triazoles/pharmacologie , Triazoles/synthèse chimique , Pyrazoles/composition chimique , Pyrazoles/pharmacologie , Pyrazoles/synthèse chimique , Relation structure-activité , Candida/effets des médicaments et des substances chimiques , Structure moléculaire , Relation dose-effet des médicaments , Cryptococcus neoformans/effets des médicaments et des substances chimiques , Humains , Résistance des champignons aux médicaments/effets des médicaments et des substances chimiques , Saccharomyces cerevisiae/effets des médicaments et des substances chimiques , Candida albicans/effets des médicaments et des substances chimiques
10.
J Med Case Rep ; 18(1): 315, 2024 Jul 10.
Article de Anglais | MEDLINE | ID: mdl-38982482

RÉSUMÉ

BACKGROUND: Central nervous system involvement in chronic lymphocytic leukemia rarely occurs, and there is no standard therapy for central nervous system involvement in chronic lymphocytic leukemia. This article aims to analyze the diagnosis and treatment of central nervous system involvement in chronic lymphocytic leukemia. CASE PRESENTATION: It reports two cases of central nervous system involvement in chronic lymphocytic leukemia describing the clinical course, therapy, and prognosis. Case 1 is a 67-year-old Asian male patient, he experienced complications with central nervous system involvement after developing resistance to ibrutinib, bendamustine, and rituximab (BR) chemotherapies. The central nervous system lesion was controlled with high-dose methotrexate combined with pomalidomide, but Richter transformation occurred several months later. Case 2 is a 62-year-old Asian female patient, she had central nervous system involvement at initial diagnosis, and bone marrow and central nervous system lesions were controlled by ibrutinib therapy. CONCLUSION: Central nervous system involvement in chronic lymphocytic leukemia is rare and can be diagnosed on the basis of clinical features, cerebrospinal fluid testing, and radiographic evaluation. Ibrutinib, pomalidomide, and other drugs that can cross the blood-brain barrier may be effective for treating central nervous system involvement in chronic lymphocytic leukemia.


Sujet(s)
Adénine , Leucémie chronique lymphocytaire à cellules B , Pipéridines , Thalidomide , Humains , Leucémie chronique lymphocytaire à cellules B/traitement médicamenteux , Sujet âgé , Mâle , Femelle , Adulte d'âge moyen , Adénine/analogues et dérivés , Pipéridines/usage thérapeutique , Thalidomide/usage thérapeutique , Thalidomide/analogues et dérivés , Tumeurs du système nerveux central/traitement médicamenteux , Tumeurs du système nerveux central/secondaire , Tumeurs du système nerveux central/imagerie diagnostique , Pyrazoles/usage thérapeutique , Méthotrexate/usage thérapeutique , Protocoles de polychimiothérapie antinéoplasique/usage thérapeutique , Pyrimidines/usage thérapeutique
11.
Int J Mol Sci ; 25(13)2024 Jun 27.
Article de Anglais | MEDLINE | ID: mdl-39000132

RÉSUMÉ

The phenylpyrazole derivative 5-amino-3-[1-cyano-2-(3-phenyl-1H-pyrazol-4-yl) vinyl]-1-phenyl-1H-pyrazole-4-carbonitrile (LN002), which was screened out through high-throughput molecular docking for the AOX target, exhibits promising efficacy against Cryptosporidium. However, its poor water solubility limits its oral bioavailability and therapeutic utility. In this study, solid dispersion agents were prepared by using HP-ß-CD and Soluplus® and characterized through differential scanning calorimetry, Fourier transform infrared, powder X-ray diffraction, and scanning electron microscopy. Physical and chemical characterization showed that the crystal morphology of LN002 transformed into an amorphous state, thus forming a solid dispersion of LN002. The solid dispersion prepared with an LN002/HP-ß-CD/Soluplus® mass ratio of 1:3:9 (w/w/w) exhibited significantly increased solubility and cumulative dissolution. Meanwhile, LN002 SDs showed good preservation stability under accelerated conditions of 25 °C and 75% relative humidity. The complexation of LN002 with HP-ß-CD and Soluplus® significantly improved water solubility, pharmacological properties, absorption, and bioavailability.


Sujet(s)
Biodisponibilité , Cryptosporidium parvum , Solubilité , Cryptosporidium parvum/effets des médicaments et des substances chimiques , Animaux , Administration par voie orale , Polyéthylène glycols/composition chimique , Pyrazoles/composition chimique , Pyrazoles/pharmacocinétique , Antienzymes/composition chimique , Antienzymes/pharmacocinétique , Antienzymes/pharmacologie , Simulation de docking moléculaire , Polyvinyles/composition chimique , Spectroscopie infrarouge à transformée de Fourier , Diffraction des rayons X , Calorimétrie différentielle à balayage , Rats , Mâle , 2-Hydroxypropyl-beta-cyclodextrin/composition chimique
12.
J Pharm Pharm Sci ; 27: 12905, 2024.
Article de Anglais | MEDLINE | ID: mdl-39007093

RÉSUMÉ

Background: Hematologic malignancies such as leukemia and lymphoma present treatment challenges due to their genetic and molecular heterogeneity. Ruxolitinib, a Janus kinase (JAK) inhibitor, has demonstrated efficacy in managing these cancers. However, optimal therapeutic outcomes are contingent upon maintaining drug levels within a therapeutic window, highlighting the necessity for precise drug monitoring. Methods: We developed a sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method to quantify ruxolitinib in human plasma, improving upon traditional methods in specificity, sensitivity, and efficiency. The process involved the use of advanced chromatographic techniques and robust mass spectrometric conditions to ensure high accuracy and minimal matrix effects. The study was conducted using samples from 20 patients undergoing treatment, with calibration standards ranging from 10 to 2000 ng/mL. Results: The method displayed linearity (R 2 > 0.99) across the studied range and proved highly selective with no significant interference observed. The method's precision and accuracy met FDA guidelines, with recovery rates consistently exceeding 85%. Clinical application demonstrated significant variability in ruxolitinib plasma levels among patients, reinforcing the need for individualized dosing schedules. Conclusion: The validated LC-MS/MS method offers a reliable and efficient tool for the therapeutic drug monitoring of ruxolitinib, facilitating personalized treatment approaches in hematologic malignancies. This approach promises to enhance patient outcomes by optimizing dosing to reduce toxicity and improve efficacy.


Sujet(s)
Tumeurs hématologiques , Nitriles , Médecine de précision , Pyrazoles , Pyrimidines , Spectrométrie de masse en tandem , Humains , Spectrométrie de masse en tandem/méthodes , Pyrimidines/usage thérapeutique , Pyrimidines/sang , Pyrazoles/usage thérapeutique , Tumeurs hématologiques/traitement médicamenteux , Chromatographie en phase liquide/méthodes , Surveillance des médicaments/méthodes ,
13.
Acta Neuropathol Commun ; 12(1): 118, 2024 Jul 16.
Article de Anglais | MEDLINE | ID: mdl-39014476

RÉSUMÉ

Background Neurotrophic tropomyosin receptor kinase (NTRK) gene fusions are found in 1% of gliomas across children and adults. TRK inhibitors are promising therapeutic agents for NTRK-fused gliomas because they are tissue agnostic and cross the blood-brain barrier (BBB). Methods We investigated twelve NGS-verified NTRK-fused gliomas from a single institute, Seoul National University Hospital. Results The patient cohort included six children (aged 1-15 years) and six adults (aged 27-72 years). NTRK2 fusions were found in ten cerebral diffuse low-grade and high-grade gliomas (DLGGs and DHGGs, respectively), and NTRK1 fusions were found in one cerebral desmoplastic infantile ganglioglioma and one spinal DHGG. In this series, the fusion partners of NTRK2 were HOOK3, KIF5A, GKAP1, LHFPL3, SLMAP, ZBTB43, SPECC1L, FKBP15, KANK1, and BCR, while the NTRK1 fusion partners were TPR and TPM3. DLGGs tended to harbour only an NTRK fusion, while DHGGs exhibited further genetic alterations, such as TERT promoter/TP53/PTEN mutation, CDKN2A/2B homozygous deletion, PDGFRA/KIT/MDM4/AKT3 amplification, or multiple chromosomal copy number aberrations. Four patients received adjuvant TRK inhibitor therapy (larotrectinib, repotrectinib, or entrectinib), among which three also received chemotherapy (n = 2) or proton therapy (n = 1). The treatment outcomes for patients receiving TRK inhibitors varied: one child who received larotrectinib for residual DLGG maintained stable disease. In contrast, another child with DHGG in the spinal cord experienced multiple instances of tumour recurrence. Despite treatment with larotrectinib, ultimately, the child died as a result of tumour progression. An adult patient with glioblastoma (GBM) treated with entrectinib also experienced tumour progression and eventually died. However, there was a successful outcome for a paediatric patient with DHGG who, after a second gross total tumour removal followed by repotrectinib treatment, showed no evidence of disease. This patient had previously experienced relapse after the initial surgery and underwent autologous peripheral blood stem cell therapy with carboplatin/thiotepa and proton therapy. Conclusions Our study clarifies the distinct differences in the pathology and TRK inhibitor response between LGG and HGG with NTRK fusions.


Sujet(s)
Inhibiteurs de protéines kinases , Pyrazoles , Récepteur trkB , Humains , Mâle , Femelle , Enfant , Enfant d'âge préscolaire , Adulte , Adolescent , Adulte d'âge moyen , Sujet âgé , Nourrisson , Récepteur trkB/génétique , Récepteur trkB/antagonistes et inhibiteurs , Inhibiteurs de protéines kinases/usage thérapeutique , Inhibiteurs de protéines kinases/pharmacologie , Pyrazoles/usage thérapeutique , Récepteur trkA/génétique , Récepteur trkA/antagonistes et inhibiteurs , Gliome/génétique , Gliome/anatomopathologie , Gliome/traitement médicamenteux , Pyrimidines/usage thérapeutique , Protéines de fusion oncogènes/génétique , Benzamides/usage thérapeutique , Glycoprotéines membranaires/génétique , Tumeurs du système nerveux central/génétique , Tumeurs du système nerveux central/traitement médicamenteux , Tumeurs du système nerveux central/anatomopathologie , Tumeurs du cerveau/génétique , Tumeurs du cerveau/traitement médicamenteux , Tumeurs du cerveau/anatomopathologie , Indazoles
14.
J Am Coll Cardiol ; 84(4): 354-364, 2024 Jul 23.
Article de Anglais | MEDLINE | ID: mdl-39019530

RÉSUMÉ

BACKGROUND: ARTESiA (Apixaban for the Reduction of Thrombo-Embolism in Patients With Device-Detected Sub-Clinical Atrial Fibrillation) demonstrated that apixaban, compared with aspirin, significantly reduced stroke and systemic embolism (SE) but increased major bleeding in patients with subclinical atrial fibrillation. OBJECTIVES: To help inform decision making, the authors evaluated the efficacy and safety of apixaban according to baseline CHA2DS2-VASc score. METHODS: We performed a subgroup analysis according to baseline CHA2DS2-VASc score and assessed both the relative and absolute differences in stroke/SE and major bleeding. RESULTS: Baseline CHA2DS2-VASc scores were <4 in 1,578 (39.4%) patients, 4 in 1,349 (33.6%), and >4 in 1,085 (27.0%). For patients with CHA2DS2-VASc >4, the rate of stroke was 0.98%/year with apixaban and 2.25%/year with aspirin; compared with aspirin, apixaban prevented 1.28 (95% CI: 0.43-2.12) strokes/SE per 100 patient-years and caused 0.68 (95% CI: -0.23 to 1.57) major bleeds. For CHA2DS2-VASc <4, the stroke/SE rate was 0.85%/year with apixaban and 0.97%/year with aspirin. Apixaban prevented 0.12 (95% CI: -0.38 to 0.62) strokes/SE per 100 patient-years and caused 0.33 (95% CI: -0.27 to 0.92) major bleeds. For patients with CHA2DS2-VASc =4, apixaban prevented 0.32 (95% CI: -0.16 to 0.79) strokes/SE per 100 patient-years and caused 0.28 (95% CI: -0.30 to 0.86) major bleeds. CONCLUSIONS: One in 4 patients in ARTESiA with subclinical atrial fibrillation had a CHA2DS2-VASc score >4 and a stroke/SE risk of 2.2% per year. For these patients, the benefits of treatment with apixaban in preventing stroke/SE are greater than the risks. The opposite is true for patients with CHA2DS2-VASc score <4. A substantial intermediate group (CHA2DS2-VASc =4) exists in which patient preferences will inform treatment decisions. (Apixaban for the Reduction of Thrombo-Embolism in Patients With Device-Detected Sub-Clinical Atrial Fibrillation; NCT01938248).


Sujet(s)
Acide acétylsalicylique , Fibrillation auriculaire , Inhibiteurs du facteur Xa , Pyrazoles , Pyridones , Accident vasculaire cérébral , Humains , Fibrillation auriculaire/traitement médicamenteux , Fibrillation auriculaire/complications , Pyrazoles/usage thérapeutique , Pyridones/usage thérapeutique , Pyridones/effets indésirables , Pyridones/administration et posologie , Acide acétylsalicylique/usage thérapeutique , Mâle , Femelle , Sujet âgé , Adulte d'âge moyen , Accident vasculaire cérébral/prévention et contrôle , Accident vasculaire cérébral/étiologie , Accident vasculaire cérébral/épidémiologie , Inhibiteurs du facteur Xa/usage thérapeutique , Appréciation des risques/méthodes , Hémorragie/induit chimiquement , Hémorragie/épidémiologie
15.
Chem Biol Drug Des ; 104(1): e14589, 2024 Jul.
Article de Anglais | MEDLINE | ID: mdl-39031926

RÉSUMÉ

Previous studies have indicated that heterocyclic substituted dihydropyrazole derivatives, particularly MW-19, potentially exert anticancer activity in vitro; however, the underlying mechanism remains unknown. The present study was designed to investigate the mechanisms underlying MW-19 activity in triple-negative breast cancer cells. A sulforhodamine B assay was performed to evaluate cell proliferation inhibition rates, and the antitumor effect of MW-19 was evaluated in mice with HCC-1806 xenografts. Apoptosis was analyzed by Hoechst 33342 and annexin V/propidium iodide staining. Expression of pro- and antiapoptotic proteins and mRNA were analyzed by western blotting and reverse transcription-quantitative (RT-q) PCR, respectively. We found that MW-19 significantly inhibited HCC-1806 cell proliferation in a dose- and time-dependent manner, and significantly inhibited MDA-MB-231 cell migration. Importantly, oral administration of MW-19 significantly inhibited HCC-1806 tumor growth in BALB/c-nu/nu mice. Moreover, MW-19 treatment induced marked apoptosis and G2/M arrest in the sensitive cell line, HCC-1806. RT-qPCR analysis showed that levels of proapoptotic genes (Bax, caspase-3, caspase-7, and Fas) were considerably increased in the MW-19 group relative to the control group, while those of antiapoptotic factors (Bcl-2, C-MYC) were dramatically decreased. Consistently, Bax, caspase-3, and caspase-7 were significantly induced after MW-19 treatment, while levels of phosphorylated (p-)AKT, p-PI3K, p-ERK, and the antiapoptotic protein, Bcl-2, were clearly diminished, and the P38 MAPK signaling pathway was activated. Furthermore, P38 pharmacological inhibitors abrogated MW-19-induced apoptosis. Together, our findings indicate that MW-19 exerts antitumor effects by targeting PI3K/AKT and ERK/P38 signaling pathways.


Sujet(s)
Antinéoplasiques , Apoptose , Prolifération cellulaire , Souris de lignée BALB C , Pyrazoles , Tumeurs du sein triple-négatives , Apoptose/effets des médicaments et des substances chimiques , Humains , Animaux , Tumeurs du sein triple-négatives/traitement médicamenteux , Tumeurs du sein triple-négatives/anatomopathologie , Tumeurs du sein triple-négatives/métabolisme , Femelle , Lignée cellulaire tumorale , Pyrazoles/composition chimique , Pyrazoles/pharmacologie , Pyrazoles/synthèse chimique , Souris , Antinéoplasiques/pharmacologie , Antinéoplasiques/composition chimique , Antinéoplasiques/synthèse chimique , Prolifération cellulaire/effets des médicaments et des substances chimiques , Protéines proto-oncogènes c-akt/métabolisme , Transduction du signal/effets des médicaments et des substances chimiques , Souris nude , Mouvement cellulaire/effets des médicaments et des substances chimiques , p38 Mitogen-Activated Protein Kinases/métabolisme , Tests d'activité antitumorale sur modèle de xénogreffe , Phosphatidylinositol 3-kinases/métabolisme
16.
Pharmacol Res Perspect ; 12(4): e1214, 2024 Aug.
Article de Anglais | MEDLINE | ID: mdl-39031848

RÉSUMÉ

In the treatment of chronic myeloid leukemia (CML), resistance to BCR-ABL inhibitors makes it difficult to continue treatment and is directly related to life expectancy. Therefore, asciminib was introduced to the market as a useful drug for overcoming drug resistance. While combining molecular targeted drugs is useful to avoid drug resistance, the new BCR-ABL inhibitor asciminib and conventional BCR-ABL inhibitors should be used as monotherapy in principle. Therefore, we investigated the synergistic effect and mechanism of the combination of asciminib and imatinib. We generated imatinib-resistant cells using the human CML cell line K562, examined the effects of imatinib and asciminib exposure on cell survival using the WST-8 assay, and comprehensively analyzed genetic variation related to drug resistance using RNA-seq and real-time PCR. A synergistic effect was observed when imatinib and asciminib were combined with or without imatinib resistance. Three genes, GRRP1, ESPN, and NOXA1, were extracted as the sites of action of asciminib. Asciminib in combination with BCR-ABL inhibitors may improve the therapeutic efficacy of conventional BCR-ABL inhibitors and prevent the development of resistance. Its dosage may be effective even at minimal doses that do not cause side effects. Further verification of this mechanism of action is needed. Additionally, cross-resistance between BCR-ABL inhibitors and asciminib may occur, which needs to be clarified through further validation as soon as possible.


Sujet(s)
Résistance aux médicaments antinéoplasiques , Synergie des médicaments , Protéines de fusion bcr-abl , Mésilate d'imatinib , Leucémie myéloïde chronique BCR-ABL positive , Mésilate d'imatinib/pharmacologie , Humains , Protéines de fusion bcr-abl/antagonistes et inhibiteurs , Protéines de fusion bcr-abl/génétique , Résistance aux médicaments antinéoplasiques/effets des médicaments et des substances chimiques , Résistance aux médicaments antinéoplasiques/génétique , Cellules K562 , Leucémie myéloïde chronique BCR-ABL positive/traitement médicamenteux , Leucémie myéloïde chronique BCR-ABL positive/génétique , Inhibiteurs de protéines kinases/pharmacologie , Survie cellulaire/effets des médicaments et des substances chimiques , Protocoles de polychimiothérapie antinéoplasique/pharmacologie , Antinéoplasiques/pharmacologie , Nicotinamide/analogues et dérivés , Pyrazoles
17.
Mol Cell Probes ; 76: 101969, 2024 Aug.
Article de Anglais | MEDLINE | ID: mdl-38964425

RÉSUMÉ

The progression and pathogenesis of membranous glomerulonephritis (MGN) are inextricably linked to chronic inflammation. Despite improving clinical remission rates due to the application of cyclophosphamide (CYC), treatment of MGN still requires further exploration. Ruxolitinib (Ruxo) negatively affects the signaling pathways participating in the production of pro-inflammatory cytokines. Hence, we investigated whether the combination of CYC and Ruxo can modulate inflammation through influencing T helper 17 (Th17) lineages and regulatory T cells (Tregs). Passive Heymann nephritis (PHN), an experimental model of MGN, was induced in a population of rats. Then, the animals were divided into five groups: PHN, CYC-receiving, Ruxo-receiving, CYC-Ruxo-receiving PHN rats, and healthy controls. After 28 days of treatment, biochemistry analysis was performed and splenocytes were isolated for flowcytometry investigation of Th17 cells and Tregs. The correlative transcription factors of the cells, alongside their downstream cytokine gene expressions, were also assessed using real-time PCR. Furthermore, serum cytokine signatures for the lymphocytes were determined through ELISA. The combination of CYC and Ruxo significantly reduced the serum values of urea in rats versus the PHN group (24.62 ± 7.970 vs. 40.60 ± 10.81 mg/dL). In contrast to Treg's activities, the functionality of Th17 cells noticeably increased not only in PHN rats but also in CYC or Ruxo-receiving PHN animals when compared with the control (10.60 ± 2.236, 8.800 ± 1.465, 8.680 ± 1.314 vs. 4.420 ± 1.551 %). However, in comparison to the PHN group, the incidence of Th17 cells notably fell in rats receiving CYC and Ruxo (10.60 ± 2.236 vs. 6.000 ± 1.373 %) in favor of the Treg's percentage (5.020 ± 1.761 vs. 8.980 ± 1.178 %), which was verified by the gene expressions and cytokine productions correlative to these lymphocytes. The combination of CYC and Ruxo was able to decline Th17 cells in favor of Tregs improvement in PHN rats, suggesting an innovative combination therapy in MGN treatment approaches.


Sujet(s)
Cyclophosphamide , Cytokines , Glomérulonéphrite extra-membraneuse , Nitriles , Pyrazoles , Pyrimidines , Lymphocytes T régulateurs , Cellules Th17 , Animaux , Glomérulonéphrite extra-membraneuse/traitement médicamenteux , Glomérulonéphrite extra-membraneuse/immunologie , Lymphocytes T régulateurs/effets des médicaments et des substances chimiques , Lymphocytes T régulateurs/immunologie , Cellules Th17/effets des médicaments et des substances chimiques , Cellules Th17/immunologie , Cyclophosphamide/pharmacologie , Cyclophosphamide/usage thérapeutique , Nitriles/pharmacologie , Nitriles/usage thérapeutique , Pyrimidines/pharmacologie , Pyrimidines/usage thérapeutique , Rats , Pyrazoles/pharmacologie , Pyrazoles/usage thérapeutique , Cytokines/métabolisme , Mâle , Modèles animaux de maladie humaine , Association de médicaments
18.
Acta Med Indones ; 56(2): 233-239, 2024 Apr.
Article de Anglais | MEDLINE | ID: mdl-39010768

RÉSUMÉ

Paraneoplastic syndrome is a broad spectrum of signs and symptoms due to neoplasm, attributed to substances produced by tumor cells, or in response to it. Myasthenia gravis (MG) is a well-known paraneoplastic neurological syndrome (PNS), frequently associated with thymic abnormalities, but rarely reported in patients with lymphoplasmacytic lymphoma.This study presents the case of a 52-year-old Indonesian male patient who was diagnosed with Waldenstrom macroglobulinemia (WM), a rare B-cell neoplasm, after developing a new onset of MG with myasthenic crisis. the patient's MG features improved with Ibrutinib as a treatment targeted toward cancer. This is the first case report presenting the treatment response of Ibrutinib in WM with myasthenic crisis. The literature was reviewed to explain the possibility of MG as a paraneoplastic syndrome of WM and the treatment response of Ibrutinib for this patient, as well as summarizing previous case reports of concomitant MG and WM.MG should be considered a paraneoplastic malignancy syndrome, including WM, during diagnostic workup. Ibrutinib should also be considered when available to patients, due to its adequate response in both previously treated and treatment naïve patients.


Sujet(s)
Adénine , Myasthénie , Pipéridines , Pyrazoles , Pyrimidines , Macroglobulinémie de Waldenström , Humains , Macroglobulinémie de Waldenström/traitement médicamenteux , Macroglobulinémie de Waldenström/complications , Mâle , Adénine/analogues et dérivés , Adénine/usage thérapeutique , Adulte d'âge moyen , Pipéridines/usage thérapeutique , Myasthénie/traitement médicamenteux , Myasthénie/complications , Myasthénie/diagnostic , Pyrimidines/usage thérapeutique , Pyrazoles/usage thérapeutique , Syndromes neurologiques paranéoplasiques/traitement médicamenteux , Syndromes neurologiques paranéoplasiques/étiologie , Résultat thérapeutique
20.
Int J Mol Sci ; 25(13)2024 Jul 02.
Article de Anglais | MEDLINE | ID: mdl-39000379

RÉSUMÉ

Hyperinflammatory Coronavirus disease 2019 (COVID-19) and rapidly-progressive interstitial lung diseases (RP-ILD) secondary to inflammatory myopathies (IIM) present important similarities. These data support the use of anti-rheumatic drugs for the treatment of COVID-19. The aim of this study was to compare the efficacy of combining baricitinib and pulse steroids with the Standard of Care (SoC) for the treatment of critically ill COVID-19 patients. We retrospectively enrolled consecutive patients admitted to the Intensive Care Unit (ICU) with COVID-19-pneumonia. Patients treated with SoC (dexamethasone plus remdesivir) were compared to patients treated with baricitinib plus 6-methylprednisolone pulses (Rheuma-group). We enrolled 246 patients: 104/246 in the SoC and 142/246 in the Rheuma-group. All patients presented laboratory findings suggestive of hyperinflammatory response. Sixty-four patients (26.1%) died during ICU hospitalization. The mortality rate in the Rheuma-group was significantly lower than in the SoC-group (15.5 vs. 40.4%, p < 0.001). Compared to the SoC-group, patients in the Rheuma-group presented significantly lower inflammatory biomarker levels after one week of treatment. Higher ferritin levels after one week of treatment were strongly associated with mortality (p < 0.001). In this large real-life COVID-19 cohort, baricitinib and pulse steroids led to a significant reduction in mortality, paralleled by a prompt reduction in inflammatory biomarkers. Our experience supports the similarities between hyperinflammatory COVID-19 and the IIM-associated RP-ILD.


Sujet(s)
Azétidines , Traitements médicamenteux de la COVID-19 , COVID-19 , Association de médicaments , Unités de soins intensifs , Méthylprednisolone , Purines , Pyrazoles , SARS-CoV-2 , Sulfonamides , Humains , Purines/usage thérapeutique , Purines/administration et posologie , Mâle , Femelle , Azétidines/usage thérapeutique , Azétidines/administration et posologie , Sulfonamides/usage thérapeutique , Sulfonamides/administration et posologie , Pyrazoles/usage thérapeutique , Pyrazoles/administration et posologie , Adulte d'âge moyen , Sujet âgé , Études rétrospectives , Méthylprednisolone/usage thérapeutique , Méthylprednisolone/administration et posologie , COVID-19/mortalité , COVID-19/complications , Dexaméthasone/usage thérapeutique , Dexaméthasone/administration et posologie , AMP/analogues et dérivés , AMP/usage thérapeutique , AMP/administration et posologie , Résultat thérapeutique , Alanine/analogues et dérivés , Alanine/usage thérapeutique , Alanine/administration et posologie
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