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1.
Sci Rep ; 14(1): 11325, 2024 05 17.
Artículo en Inglés | MEDLINE | ID: mdl-38760458

RESUMEN

The low response rate of immune checkpoint inhibitors (ICIs) is a challenge. The efficacy of ICIs is influenced by the tumour microenvironment, which is controlled by the gut microbiota. In particular, intestinal bacteria and their metabolites, such as short chain fatty acids (SCFAs), are important regulators of cancer immunity; however, our knowledge on the effects of individual SCFAs remains limited. Here, we show that isobutyric acid has the strongest effect among SCFAs on both immune activity and tumour growth. In vitro, cancer cell numbers were suppressed by approximately 75% in humans and mice compared with those in controls. Oral administration of isobutyric acid to carcinoma-bearing mice enhanced the effect of anti-PD-1 immunotherapy, reducing tumour volume by approximately 80% and 60% compared with those in the control group and anti-PD-1 antibody alone group, respectively. Taken together, these findings may support the development of novel cancer therapies that can improve the response rate to ICIs.


Asunto(s)
Inhibidores de Puntos de Control Inmunológico , Receptor de Muerte Celular Programada 1 , Microambiente Tumoral , Animales , Ratones , Humanos , Receptor de Muerte Celular Programada 1/antagonistas & inhibidores , Inhibidores de Puntos de Control Inmunológico/farmacología , Inhibidores de Puntos de Control Inmunológico/uso terapéutico , Microambiente Tumoral/efectos de los fármacos , Microambiente Tumoral/inmunología , Línea Celular Tumoral , Femenino , Microbioma Gastrointestinal/efectos de los fármacos , Inmunoterapia/métodos , Neoplasias/tratamiento farmacológico , Neoplasias/inmunología , Neoplasias/patología , Ácidos Grasos Volátiles/metabolismo , Ácidos Grasos Volátiles/farmacología , Sinergismo Farmacológico
2.
Anticancer Res ; 44(2): 511-520, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38307570

RESUMEN

BACKGROUND/AIM: Colorectal cancer (CRC) is the third most common cancer worldwide, and metastasis is strongly associated with poor prognosis in patients with CRC. We have previously found that the expression and phosphorylation of paxillin (PXN) play an important role in the metastatic potential of breast cancer. This study examined the potential role of PXN in CRC metastasis. MATERIALS AND METHODS: Resected tumor specimens from 92 patients with CRC were subjected to immunohistochemical analysis of PXN levels. Three human CRC cell lines, HCT116, LoVo, and SW480 were used for scratch and transwell invasion assays to examine the effects of PXN over-expression. RNA sequencing was performed to obtain the expression profiles under PXN over-expression. RESULTS: High levels of PXN were significantly correlated with advanced stage, higher carcinoembryonic antigen and carbohydrate antigen 19-9 levels, and poorer overall survival. The migration ability of CRC cells was enhanced by exogenous PXN over-expression, but this enhancement was not observed in cells harboring exogenously mutated PXN at Tyr31 or Tyr88 phosphorylation sites. In PXN-over-expressing cells, TNF-α signaling via NF-[Formula: see text]B was positively enriched. CONCLUSION: PXN expression and phosphorylation at Tyr31 or Tyr88 may influence the migration and invasion of CRC cells. PXN expression and phosphorylation at Tyr31 or Tyr88 are promising targets for evaluating prognosis and treating CRC.


Asunto(s)
Neoplasias Colorrectales , Regulación Neoplásica de la Expresión Génica , Paxillin , Humanos , Línea Celular Tumoral , Movimiento Celular , Proliferación Celular , Neoplasias Colorrectales/patología , Metástasis de la Neoplasia , Paxillin/genética , Paxillin/metabolismo , Fosforilación , Pronóstico
3.
Infect Drug Resist ; 17: 161-170, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38260181

RESUMEN

Background: Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), immediately became a pandemic. Therefore, nosocomial infection control is necessary to screen for patients with possible COVID-19. Objective: This study aimed to investigate commonly measured clinical variables to predict COVID-19. Methods: This cross-sectional study enrolled 1087 patients in the isolation ward of a university hospital. Conferences were organized to differentiate COVID-19 from non-COVID-19 cases, and multiple nucleic acid tests were mandatory when COVID-19 could not be excluded. Multivariate logistic regression models were employed to determine the clinical factors associated with COVID-19 at the time of hospitalization. Results: Overall, 352 (32.4%) patients were diagnosed with COVID-19. The majority of the non-COVID-19 cases were predominantly caused by bacterial infections. Multivariate analysis indicated that COVID-19 was significantly associated with age, sex, body mass index, lactate dehydrogenase, C-reactive protein, and malignancy. Conclusion: Some clinical factors are useful to predict patients with COVID-19 among those with symptoms similar to COVID-19. This study suggests that at least two real-time reverse-transcription polymerase chain reactions of SARS-CoV-2 are recommended to exclude COVID-19.

4.
Cell Commun Signal ; 22(1): 58, 2024 01 22.
Artículo en Inglés | MEDLINE | ID: mdl-38254202

RESUMEN

BACKGROUND: The Ca2+-independent contraction of vascular smooth muscle is a leading cause of cardiovascular and cerebrovascular spasms. In the previous study, we demonstrated the involvement of Src family protein tyrosine kinase Fyn and Rho-kinase in the sphingosylphosphorylcholine (SPC)-induced abnormal and Ca2+-independent contraction of vascular smooth muscle, but the specific mechanism has not been completely clarified. METHODS: Paxillin knockdown human coronary artery smooth muscle cells (CASMCs) and smooth muscle-specific paxillin knockout mice were generated by using paxillin shRNA and the tamoxifen-inducible Cre-LoxP system, respectively. CASMCs contraction was observed by time-lapse recording. The vessel contractility was measured by using a myography assay. Fyn, Rho-kinase, and myosin light chain activation were assessed by immunoprecipitation and western blotting. The paxillin expression and actin stress fibers were visualized by histological analysis and immunofluorescent staining. RESULTS: The SPC-induced abnormal contraction was inhibited in paxillin knockdown CASMCs and arteries of paxillin knockout mice, indicating that paxillin is involved in this abnormal contraction. Further study showed that paxillin knockdown inhibited the SPC-induced Rho-kinase activation without affecting Fyn activation. In addition, paxillin knockdown significantly inhibited the SPC-induced actin stress fiber formation and myosin light chain phosphorylation. These results suggest that paxillin, as an upstream molecule of Rho-kinase, is involved in the SPC-induced abnormal contraction of vascular smooth muscle. CONCLUSIONS: The present study demonstrated that paxillin participates in the SPC-induced abnormal vascular smooth muscle contraction by regulating Rho-kinase activation. Video Abstract.


Asunto(s)
Músculo Liso Vascular , Paxillin , Quinasas Asociadas a rho , Animales , Humanos , Ratones , Actinas , Ratones Noqueados , Cadenas Ligeras de Miosina , Fosforilcolina/análogos & derivados , Esfingosina/análogos & derivados
5.
Int J Mol Sci ; 24(21)2023 Nov 05.
Artículo en Inglés | MEDLINE | ID: mdl-37958964

RESUMEN

Metastasis is the leading cause of death in breast cancer patients due to the lack of effective therapies. Elevated levels of paxillin expression have been observed in various cancer types, with tyrosine phosphorylation shown to play a critical role in driving cancer cell migration. However, the specific impact of the distinct tyrosine phosphorylation events of paxillin in the progression of breast cancer remains to be fully elucidated. Here, we found that paxillin overexpression in breast cancer tissue is associated with a patient's poor prognosis. Paxillin knockdown inhibited the migration and invasion of breast cancer cells. Furthermore, the phosphorylation of paxillin tyrosine residue 31 (Tyr31) was significantly increased upon the TGF-ß1-induced migration and invasion of breast cancer cells. Inhibiting Fyn activity or silencing Fyn decreases paxillin Tyr31 phosphorylation. The wild-type and constitutively active Fyn directly phosphorylate paxillin Tyr31 in an in vitro system, indicating that Fyn directly phosphorylates paxillin Tyr31. Additionally, the non-phosphorylatable mutant of paxillin at Tyr31 reduces actin stress fiber formation, migration, and invasion of breast cancer cells. Taken together, our results provide direct evidence that Fyn-mediated paxillin Tyr31 phosphorylation is required for breast cancer migration and invasion, suggesting that targeting paxillin Tyr31 phosphorylation could be a potential therapeutic strategy for mitigating breast cancer metastasis.


Asunto(s)
Neoplasias de la Mama , Femenino , Humanos , Neoplasias de la Mama/metabolismo , Movimiento Celular , Paxillin/metabolismo , Fosforilación , Tirosina/metabolismo
6.
Cleft Palate Craniofac J ; : 10556656231215717, 2023 Nov 14.
Artículo en Inglés | MEDLINE | ID: mdl-37964536

RESUMEN

OBJECTIVE: Measure the volume of air-containing space in children with cleft palate and assess age-related changes, recurrence rate of otitis media with effusion (OME) after tube removal, and temporal bone development trend based on time of tube placement. DESIGN: Interventional prospective study. SETTING: Cleft Lip and Palate Center at a Tertiary-level institution. PATIENTS/PARTICIPANTS: One hundred sixty-eight ears of 86 patients who visited our center from January 2018 to December 2019. INTERVENTIONS: We performed tympanometry (impedance audiometry) after tube placement. MAIN OUTCOME MEASURES: Recurrence (at least one episode of OME after tympanic membrane closure), tympanic cavity volumes, and timing of tube placement. RESULTS: The mean air-containing cavity volume was 1.62 mL, 2.99 mL, and 3.29 mL in patients aged 1, 2, and 3 years, respectively. A rapid increase in volume was observed around 2 years of age. Twenty-two (42.3%) of the 52 ears with pneumatic cavity volumes <3 mL, and four (14.3%) of the 28 ears with pneumatic cavity volumes ≥3 mL had recurrence. Tubes were placed at ages <1 year and ≥1 year in 28 and 62 ears, respectively. The pneumatic cavity volume tended to be greater in the ears with tube placement at age <1 year. CONCLUSION: This study provided insights into using pneumatic cavity volume measurements to determine the appropriate timing for tube removal. Tubes should be placed as early as possible (before the age of 2 years) for prolonged OME associated with children with cleft palate.

7.
J Smooth Muscle Res ; 59: 58-66, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37438114

RESUMEN

Vascular smooth muscle cell (VSMC) migration plays an important role in cardiovascular diseases, including atherosclerotic plaque formation and restenosis after vascular intervention. The mechanisms involved in VSMC migration are complex and have not been fully elucidated. Recently, we discovered a novel interaction, direct binding of active Fyn-paxillin at focal adhesions, which plays an important role in actin stress fiber formation and migration in VSMCs. In this review, we highlight paxillin as an intermediate signaling molecule that mediates actin stress fiber formation and VSMC migration through the Fyn/paxillin/Rho-kinase signaling pathway by directly binding to active Fyn. We also discuss the inhibition of VSMC migration by blocking the active Fyn-paxillin interaction and the potential of this interaction as a therapeutic target for cardiovascular diseases.


Asunto(s)
Enfermedades Cardiovasculares , Músculo Liso Vascular , Humanos , Paxillin , Actinas , Movimiento Celular
8.
Antibiotics (Basel) ; 12(2)2023 Feb 02.
Artículo en Inglés | MEDLINE | ID: mdl-36830213

RESUMEN

As antibiotic resistance has become a global problem, the intervention of an antimicrobial stewardship team (AST) is warranted. In hematological disorders, infectious complications are crucial owing to abnormal neutrophil function and decreased cell-mediated immunity. Despite the widespread implementation of AST intervention, the effectiveness of stewardship practices for immunocompromised patients remains uncertain. We determined the effect of AST interventions on carbapenem therapy in the department of hematology. Patients admitted to the department and undergoing carbapenem therapy were enrolled. We compared carbapenem use between the pre-AST (April 2016-March 2018) and post-AST (April 2018-March 2021) periods. Factors associated with long-term carbapenem therapy were investigated. Overall, 515 episodes of carbapenem therapy in 264 patients in the department were evaluated. According to the interrupted time series analysis, the number of days of therapy decreased with AST intervention (ß = -0.263, p = 0.011). In multivariate analysis, predictive factors associated with long-term carbapenem therapy (>8 days) were outpatient onset, chronic obstructive pulmonary disease, acute myeloid leukemia, multiple myeloma, and infection with resistant bacteria (such as extended spectrum ß-lactamases and AmpC) (95% confidence interval, 1.030-2.818, 1.067-66.667, 1.057-2.782, 0.168-0.742, and 1.382-5.750, respectively). The AST intervention reduced carbapenem use in patients with hematological disorders.

9.
J Pharmacol Sci ; 149(4): 189-197, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35717072

RESUMEN

We previously discovered that the SPC/Fyn/Rho-kinase (ROK) pathway mediates the Ca2+-sensitization of coronary arterial smooth muscle (CASM) contraction leading to vasospasm, a major cause of sudden death. Lately, we have been trying to find and develop more natural edible compounds which can treat and/or prevent the SPC-induced abnormal CASM contraction, and finally the first to discover that tangeretin (5,6,7,8,4'-pentamethoxyflavone), a natural compound extracted from citrus plants, can inhibit the SPC-induced CASM contraction both in the pretreatment and posttreatment. In porcine CASM tissues, tangeretin showed remarkable inhibitory effects on the SPC-induced contraction with modest inhibitory effects on the high K+-depolarization-induced Ca2+-dependent contraction, both in pretreatment and posttreatment at the optimal concentrations; Regarding the mechanisms, tangeretin markedly abolished the SPC-induced cell contraction through inhibiting the SPC-induced activation and translocation of Fyn and ROK from the cytoplasm to the cell membrane in cultured CASM cells, resulting in the reduction of phosphorylation of myosin light chain. Taken together, these findings indicate that tangeretin, upon pre- or post-treatment, inhibits the SPC-induced CASM contraction through suppressing the Fyn/ROK signaling pathway, thereby suggesting that tangeretin can be a potential candidate for the treatment and/or prevention of vasospasm.


Asunto(s)
Citrus , Flavonas , Animales , Calcio/metabolismo , Flavonas/farmacología , Contracción Muscular , Músculo Liso Vascular , Fosforilcolina/análogos & derivados , Esfingosina/análogos & derivados , Porcinos , Quinasas Asociadas a rho/metabolismo
10.
J Am Heart Assoc ; 11(3): e020637, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-35043661

RESUMEN

Background Saphenous vein grafts (SVGs) are broadly used in coronary artery bypass grafting despite their inferior patency compared with arterial grafts. Recently, the no-touch technique (NT), in which an SVG is harvested with a pedicle of perivascular adipose tissue (PVAT) without conduit distension, was shown to improve long-term patency compared with conventional preparation (CV), wherein outer tissue is removed with distension. The NT was also reportedly associated with reduced atherosclerosis. Although endothelial damage provoked by conventional distension may underlie poor patency when CV is performed, the precise mechanisms underlying the salutary effects of the NT have been unclear. Methods and Results Residual SVGs prepared with CV (CV-SVGs) or NT (NT-SVGs) were obtained during coronary artery bypass grafting. Nitric oxide (NO2-/NO3- (NOx)) levels after 24 hours of tissue culture were quantified. The protein expression and localization were analyzed. The isometric force of SVG strips was measured. NT-SVGs showed superior NOx production to CV-SVGs. PVAT generated the majority of NOx in NT-SVGs. PVAT highly expressed arginosuccinate synthase 1, a rate-limiting enzyme in the molecular circuit for NO synthesis, thereby continuously providing the substrate for NO. A substantial level of endothelial NO synthase was also expressed in PVAT. Pharmacological inhibition of arginosuccinate synthase 1 or endothelial NO synthase significantly suppressed the NOx production in NT-SVGs. PVAT induced vasorelaxation through NO production, even in the endothelium-denuded SVG strips. Conclusions Preserving PVAT was predominantly involved in the superior NOx production in NT-SVGs. Since NO plays crucial roles in suppressing atherosclerosis, this mechanism may greatly contribute to the excellent patency in NT-SVGs.


Asunto(s)
Aterosclerosis , Vena Safena , Tejido Adiposo , Aterosclerosis/metabolismo , Dilatación Patológica , Humanos , Óxido Nítrico/metabolismo , Vena Safena/trasplante , Grado de Desobstrucción Vascular
11.
J Cardiovasc Pharmacol ; 79(4): 456-466, 2022 01 05.
Artículo en Inglés | MEDLINE | ID: mdl-34983908

RESUMEN

ABSTRACT: Cardiovascular diseases are the leading cause of mortality and disability worldwide. We have previously found that sphingosylphosphorylcholine (SPC) is the key molecule leading to vasospasm. We have also identified the SPC/Src family protein tyrosine kinase Fyn/Rho-kinase (ROK) pathway as a novel signaling pathway for Ca2+ sensitization of vascular smooth muscle (VSM) contraction. This study aimed to investigate whether hesperetin can inhibit the SPC-induced contraction with little effect on 40 mM K+-induced Ca2+-dependent contraction and to elucidate the underlying mechanisms. Hesperetin significantly inhibited the SPC-induced contraction of porcine coronary artery smooth muscle strips with little effect on 40 mM K+-induced contraction. Hesperetin blocked the SPC-induced translocation of Fyn and ROK from the cytosol to the membrane in human coronary artery smooth muscle cells (HCASMCs). SPC decreased the phosphorylation level of Fyn at Y531 in both VSMs and HCASMCs and increased the phosphorylation levels of Fyn at Y420, myosin phosphatase target subunit 1 at T853, and myosin light chain (MLC) at S19 in both VSMs and HCASMCs, which were significantly suppressed by hesperetin. Our results indicate that hesperetin inhibits the SPC-induced contraction at least in part by suppressing the Fyn/ROK pathway, suggesting that hesperetin can be a novel drug to prevent and treat vasospasm.


Asunto(s)
Músculo Liso Vascular , Quinasas Asociadas a rho , Animales , Calcio/metabolismo , Hesperidina , Contracción Muscular , Músculo Liso Vascular/metabolismo , Fosforilación , Fosforilcolina/análogos & derivados , Esfingosina/análogos & derivados , Porcinos , Quinasas Asociadas a rho/metabolismo
12.
Medicine (Baltimore) ; 101(52): e32617, 2022 Dec 30.
Artículo en Inglés | MEDLINE | ID: mdl-36596084

RESUMEN

RATIONALE: IgG4-related diseases cause lesions in various organs throughout the body. In otorhinolaryngology, IgG4-related Mikulicz's disease is suspected and diagnosed based on the presence of lesions of the head and neck, salivary and lacrimal gland enlargement, and bilateral sinus opacity concentrated on the maxillary sinuses. However, in some cases, it is necessary to consider about differentiation between IgG4-related Mikulicz's disease and Sjögren syndrome. PATIENT CONCERNS AND DIAGNOSIS: A 75-years-old male patient visited our hospital with bilateral otitis media with effusion, which was resistant to conservative treatment. Other symptoms at presentation included enlarged bilateral submandibular and sublingual glands marked oral dryness, severe decrease in saliva secretion (1 mL/10 minutes), and dry eyes. We conducted a Schirmer's and fluorescent dye tests, both of which were positive. High serum IgG4 levels were observed, and although the Sjögren syndrome (SS)-A/SS-B antibodies were negative, marked hypolacrimation and tear secretion were observed. Therefore, a detailed examination considering both IgG4-related Mikulicz's disease and SS was conducted. Salivary gland scintigraphy performed prior to the salivary gland biopsy revealed a marked decrease in uptake, which satisfied the diagnostic criteria for SS; however, it was difficult to diagnose IgG4-related disease based on the diagnostic definition. INTERVENSIONS: Although a definitive diagnosis of SS was made, the persistent otitis media with effusion that was resistant to conservative treatment and bilateral mixed hearing loss were confirmed. As mixed hearing loss is considered an otological symptom of IgG4-related disease, oral steroid treatment was administered. OUTCOME: Thereafter, marked recovery of hearing and reduced swelling and induration of the bilateral parotid and submandibular glands were observed. Clinically, IgG4-related Mikulicz's disease was strongly suspected, but a definite diagnosis of SS was made. LESSONS: In the absence of an IgG4-related Mikulicz's disease diagnosis, careful differentiation between IgG4-related Mikulicz's disease and 2 diseases and their diagnostic criteria was essential.


Asunto(s)
Perdida Auditiva Conductiva-Sensorineural Mixta , Enfermedad Relacionada con Inmunoglobulina G4 , Enfermedad de Mikulicz , Otitis Media con Derrame , Síndrome de Sjögren , Masculino , Humanos , Anciano , Síndrome de Sjögren/complicaciones , Síndrome de Sjögren/diagnóstico , Enfermedad de Mikulicz/diagnóstico , Enfermedad de Mikulicz/patología , Inmunoglobulina G
13.
FASEB J ; 35(12): e22012, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34724245

RESUMEN

Rho-kinase (ROK)-mediated migration of vascular smooth muscle cells plays a crucial role in cardiovascular diseases. Previously we demonstrated Fyn tyrosine kinase as an upstream molecule of ROK to mediate actin stress fiber formation that plays an important role in cell migration, but the molecular mechanism between the two kinases was unclear. To discover a novel signaling molecule that exists between Fyn and ROK, we identified paxillin acting downstream of the active Fyn by combined use of pulldown assay and mass spectrometry. Immunofluorescence staining confirmed co-localization of Fyn and paxillin at the ends of actin stress fibers in human coronary artery smooth muscle cells (CASMCs). Surface plasmon resonance assay demonstrated direct binding between constitutively active Fyn (CA-Fyn) and N-terminus of paxillin (N-pax). The sphingosylphosphorylcholine (SPC)-induced ROK activation, actin stress fiber formation and cell migration were inhibited by paxillin knockdown, which were rescued by full-length paxillin (FL-pax) but not N-pax. N-pax co-localized with CA-Fyn at the cytosol and overexpression of N-pax inhibited the SPC-induced actin stress fiber formation and cell migration, indicating that the direct binding of FL-pax and CA-Fyn at the ends of actin stress fibers is essential for the ROK-mediated actin stress fiber formation and cell migration. Paxillin, as a novel signalling molecule, mediates the SPC-induced actin stress fiber formation and migration in human CASMCs via the Fyn/paxillin/ROK signalling pathway by direct binding of active Fyn.


Asunto(s)
Actinas/metabolismo , Movimiento Celular , Vasos Coronarios/patología , Músculo Liso Vascular/patología , Paxillin/metabolismo , Proteínas Proto-Oncogénicas c-fyn/metabolismo , Fibras de Estrés/patología , Vasos Coronarios/metabolismo , Humanos , Músculo Liso Vascular/metabolismo , Fosforilación , Fibras de Estrés/metabolismo
15.
Am J Case Rep ; 21: e926689, 2020 Nov 04.
Artículo en Inglés | MEDLINE | ID: mdl-33144555

RESUMEN

BACKGROUND Pharyngocutaneous fistulas are often difficult to treat because pharyngeal contents tend to leak into the cervical layer causing wound infections or abscesses. If reconstruction with free flaps is difficult, pedicled pectoralis major flaps are an option. CASE REPORT A 51-year-old male patient who had undergone radiation and chemotherapy for laryngeal cancer was scheduled for total laryngectomy with combined skin resection for local tumor recurrence. Reconstruction with a left deltopectoral (DP) flap was performed. However, a pharyngocutaneous fistula constructed due to cervical soft-tissue infection required reconstruction using a right bi-paddled pectoralis major muscle. The anterior pharyngeal wall was reconstructed with the medial skin island, and the lateral skin island was folded back to reconstruct the soft tissues. Since this was the patient's third recurrence, the possibility of subsequent local recurrences, and hence of the need for radiation therapy, were high. In such cases, the pedicle of the pectoralis major muscle flap is normally closed using a DP flap. However, in the present case, the DP flap had already been used on both sides. We therefore utilized a right bi-paddled pectoralis major flap for cervical reconstruction. CONCLUSIONS We successfully reconstructed the cervical skin and soft tissue thickly, and primarily-closed the donor site, by creating a second skin island from surplus areas of the existing skin island. This method is particularly useful for the reconstruction of cervical skin and soft tissues due to the possible need for future radiation therapy, when the use of free flaps and DP flap is unfeasible.


Asunto(s)
Fístula Cutánea , Enfermedades Faríngeas , Procedimientos de Cirugía Plástica , Fístula Cutánea/etiología , Fístula Cutánea/cirugía , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/cirugía , Músculos Pectorales/trasplante , Enfermedades Faríngeas/cirugía , Colgajos Quirúrgicos
16.
J Mol Cell Cardiol ; 148: 50-62, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32889002

RESUMEN

Pulmonary arterial hypertension (PAH) is a multifactorial disease characterized by pulmonary arterial vasoconstriction and remodeling. Src family tyrosine kinases, including Fyn, play critical roles in vascular remodeling via the inhibition of STAT3 signaling. EPA is known to inhibit Fyn kinase activity. This study investigated the therapeutic potential and underlying mechanisms of EPA and its metabolite, resolvin E1 (RvE1), to treat PAH using monocrotaline-induced PAH model rats (MCT-PAH), human pulmonary artery endothelial cells (HPAECs), and human pulmonary artery smooth muscle cells (HPASMCs). Administration of EPA 1 and 2 weeks after MCT injection both ameliorated right ventricular hypertrophy, remodeling and dysfunction, and medial wall thickening of the pulmonary arteries and prolonged survival in MCT-PAH rats. EPA attenuated the enhanced contractile response to 5-hydroxytryptamine in isolated pulmonary arteries of MCT-PAH rats. Mechanistically, the treatment with EPA and RvE1 or the introduction of dominant-negative Fyn prevented TGF-ß2-induced endothelial-to-mesenchymal transition and IL-6-induced phosphorylation of STAT3 in cultured HPAECs. EPA and RvE1 suppressed Src family kinases' activity as evaluated by their phosphorylation status in cultured HPAECs and HPASMCs. EPA and RvE1 suppressed vasocontraction of rat and human PA. Furthermore, EPA and RvE1 inhibited the enhanced proliferation and activity of Src family kinases in HPASMCs derived from patients with idiopathic PAH. EPA ameliorated PAH's pathophysiology by mitigating vascular remodeling and vasoconstriction, probably inhibiting Src family kinases, especially Fyn. Thus, EPA is considered a potent therapeutic agent for the treatment of PAH.


Asunto(s)
Ácido Eicosapentaenoico/uso terapéutico , Hipertensión Pulmonar/tratamiento farmacológico , Hipertensión Pulmonar/enzimología , Proteínas Proto-Oncogénicas c-fyn/antagonistas & inhibidores , Animales , Proliferación Celular/efectos de los fármacos , Ácido Eicosapentaenoico/análogos & derivados , Ácido Eicosapentaenoico/farmacología , Células Endoteliales/efectos de los fármacos , Células Endoteliales/metabolismo , Células Endoteliales/patología , Endotelio Vascular/efectos de los fármacos , Endotelio Vascular/patología , Endotelio Vascular/fisiopatología , Humanos , Hipertensión Pulmonar/fisiopatología , Hipertrofia Ventricular Derecha/complicaciones , Hipertrofia Ventricular Derecha/fisiopatología , Interleucina-6/farmacología , Masculino , Mesodermo/efectos de los fármacos , Mesodermo/patología , Mesodermo/fisiopatología , Monocrotalina , Contracción Miocárdica/efectos de los fármacos , Miocitos del Músculo Liso/efectos de los fármacos , Miocitos del Músculo Liso/metabolismo , Fosforilación/efectos de los fármacos , Proteínas Proto-Oncogénicas c-fyn/metabolismo , Arteria Pulmonar/efectos de los fármacos , Arteria Pulmonar/fisiopatología , Ratas Sprague-Dawley , Factor de Transcripción STAT3/metabolismo , Análisis de Supervivencia , Factor de Crecimiento Transformador beta2/farmacología , Vasodilatación/efectos de los fármacos , Remodelación Ventricular/efectos de los fármacos , Familia-src Quinasas/metabolismo
17.
Curr Hypertens Rev ; 16(2): 128-137, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-30887927

RESUMEN

BACKGROUND: We previously reported the nutritional characteristics and effects of the DASH-JUMP diet, which is a WASHOKU-modified DASH diet, in Japanese participants with untreated high-normal blood pressure or stage 1 hypertension. The dietary adherence of the DASH diet in Japanese participants has never been evaluated before. OBJECTIVE: We aimed to assess the relationships between dietary adherence, self-efficacy, and health behavior change among study participants who received the DASH-JUMP diet by home delivery. METHODS: Participants were treated with the DASH-JUMP diet for 2 months and consumed their usual diets for the next 4 months. We conducted surveys using the stage of behavior change model questionnaire and the modified perceived health competence scale Japanese version questionnaire at baseline and 1, 2, 3, and 6 months to assess dietary adherence. RESULTS: Forty-three participants (25 men, 18 women; mean age 53.6 ± 8.2 years) returned completed questionnaires, which we analyzed. Health behavior change was motivated by previous behavioral changes and improved biomarkers. The improvement and maintenance of self-efficacy were deeply related to health behavior change and previous self-efficacy. The experience of the DASH-JUMP study for participants included three processes to improve lifestyle habits: Phase 1, reflecting on previous lifestyle habits; Phase 2, learning through new experiences and the acquisition of knowledge; and Phase 3, desiring to maintain their own health. CONCLUSION: It indicated that the DASH-JUMP diet significantly increased self-efficacy and promoted health behavior change.


Asunto(s)
Dieta Saludable , Enfoques Dietéticos para Detener la Hipertensión , Conducta Alimentaria , Conocimientos, Actitudes y Práctica en Salud , Hipertensión/dietoterapia , Cooperación del Paciente , Conducta de Reducción del Riesgo , Autoeficacia , Biomarcadores/sangre , Presión Sanguínea , Femenino , Estado de Salud , Humanos , Hipertensión/diagnóstico , Hipertensión/fisiopatología , Hipertensión/psicología , Japón , Masculino , Persona de Mediana Edad , Factores de Tiempo , Resultado del Tratamiento , Pérdida de Peso
18.
Oral Oncol ; 99: 104454, 2019 12.
Artículo en Inglés | MEDLINE | ID: mdl-31675682

RESUMEN

OBJECTIVES: This multicenter retrospective cohort study aimed to evaluate the significance of adding S-1 to radiotherapy (RT) for the treatment of T2N0 glottic cancer using a propensity score matched analysis in Japan. MATERIALS AND METHODS: This study was conducted on 287 patients with T2N0 glottic cancer who were treated with definitive RT or chemoradiotherapy with S-1 (S-1 RT) between April 2007 and March 2017. Propensity score matched analysis was performed to ensure the well-balanced characteristics of the groups of patients who received RT alone and S-1 RT. Overall, progression-free and laryngectomy-free survivals and local control and laryngeal preservation rates were compared. RESULTS: Fifty-four pairs of patients were selected after performing propensity score matched analysis. Clinical characteristics were well-balanced between the two groups. The overall survival of patients in the S-1 RT group was significantly better than those in the RT alone group (P = 0.008). The progression-free and laryngectomy-free survivals of patients in the S-1 RT group were also better than those in the RT alone group; however, the differences were not significant. In contrast, patients in the S-1 RT group had slightly lower local control and laryngeal preservation rates compared with those in the RT alone group. The incidence of dermatitis in the S-1 RT group was significantly higher than that in the RT alone group in the matched population (P = 0.013). CONCLUSIONS: The addition of S-1 to RT for the treatment of T2N0 glottic cancer was not associated with better local control and laryngeal preservation rates in this study.


Asunto(s)
Glotis/patología , Neoplasias Laríngeas/radioterapia , Neoplasias Laríngeas/terapia , Adulto , Anciano , Anciano de 80 o más Años , Combinación de Medicamentos , Femenino , Humanos , Japón , Neoplasias Laríngeas/mortalidad , Masculino , Persona de Mediana Edad , Ácido Oxónico , Supervivencia sin Progresión , Puntaje de Propensión , Estudios Retrospectivos , Tegafur
19.
Pharmacol Res ; 134: 200-211, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29935947

RESUMEN

Add-on therapy with traditional Chinese medicine (TCM) has been extensively researched in the intractable diseases, such as asthma, cancer, and Alzheimer's disease. As an entirely new concept, add-on therapy of TCM has been also used to prevent and treat hyperlipidemia via lowering cholesterol level. However, the efficacy of add-on therapy with TCM for mediating lipid metabolism disorders remains controversial. In this review, we summarize and provide strong evidence that add-on therapy of TCM as a novel approach is efficacious and safe for hyperlipidemia associated diseases based on the mediation of lipid metabolism disorders.


Asunto(s)
Medicamentos Herbarios Chinos/uso terapéutico , Dislipidemias/tratamiento farmacológico , Hipolipemiantes/uso terapéutico , Metabolismo de los Lípidos/efectos de los fármacos , Lípidos/sangre , Biomarcadores/sangre , Quimioterapia Combinada , Dislipidemias/sangre , Dislipidemias/diagnóstico , Humanos , Hipolipemiantes/efectos adversos , Factores de Riesgo , Resultado del Tratamiento
20.
Curr Hypertens Rev ; 14(1): 56-65, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29618312

RESUMEN

BACKGROUND: We developed a WASHOKU-modified DASH diet named DASH-JUMP. We previously reported the hypotensive effect of the DASH-JUMP diet in Japanese participants with untreated high-normal Blood Pressure (BP) or stage 1 hypertension. OBJECTIVE: We aim to introduce the DASH-JUMP diet worldwide as a new lifestyle medicine. Accordingly, we prospectively assessed the nutritional characteristics of the DASH-JUMP diet. METHODS: Participants were treated with the DASH-JUMP diet for 2 months. Then, for 4 months after the intervention, they consumed their usual diets. We conducted a nutritional survey using the FFQg nutrient questionnaire at baseline and after 1, 2, 3, and 6 months. We received completed questionnaires from 55 participants (28 men and 27 women; mean age 54.2 ± 8.0 years) and analyzed them. RESULTS: The DASH-JUMP diet is rich in green-yellow vegetables, seaweed, milk, and mushrooms, while it has low contents of meat, eggs, confectionery, oils and fats, pickles, shellfish boiled in sweetened soy sauce, and fruits. Nutrients significantly associated with the observed change in systolic BP were niacin (P = 0.005) and carbohydrate (P = 0.033). The results of the FFQg questionnaire revealed that participants who had an increased BP at 1 month after ceasing the intervention had eating habits that broadly imitated the DASH-JUMP diet at 4 months after ceasing the intervention. Therefore, the systolic and diastolic BP values at 4 months after ceasing the intervention decreased significantly compared to those at baseline. CONCLUSION: The DASH-JUMP diet may represent a new lifestyle medicine for reducing hypertension.


Asunto(s)
Presión Sanguínea , Dieta Saludable , Enfoques Dietéticos para Detener la Hipertensión/métodos , Hipertensión/dietoterapia , Valor Nutritivo , Adulto , Anciano , Conducta Alimentaria , Femenino , Humanos , Hipertensión/diagnóstico , Hipertensión/fisiopatología , Japón , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Ingesta Diaria Recomendada , Factores de Tiempo , Resultado del Tratamiento
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