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1.
Cell ; 182(2): 481-496.e21, 2020 07 23.
Artículo en Inglés | MEDLINE | ID: mdl-32649862

RESUMEN

The response to DNA damage is critical for cellular homeostasis, tumor suppression, immunity, and gametogenesis. In order to provide an unbiased and global view of the DNA damage response in human cells, we undertook 31 CRISPR-Cas9 screens against 27 genotoxic agents in the retinal pigment epithelium-1 (RPE1) cell line. These screens identified 890 genes whose loss causes either sensitivity or resistance to DNA-damaging agents. Mining this dataset, we discovered that ERCC6L2 (which is mutated in a bone-marrow failure syndrome) codes for a canonical non-homologous end-joining pathway factor, that the RNA polymerase II component ELOF1 modulates the response to transcription-blocking agents, and that the cytotoxicity of the G-quadruplex ligand pyridostatin involves trapping topoisomerase II on DNA. This map of the DNA damage response provides a rich resource to study this fundamental cellular system and has implications for the development and use of genotoxic agents in cancer therapy.


Asunto(s)
Daño del ADN , Redes Reguladoras de Genes/fisiología , Aminoquinolinas/farmacología , Animales , Sistemas CRISPR-Cas/genética , Línea Celular , Citocromo-B(5) Reductasa/genética , Citocromo-B(5) Reductasa/metabolismo , Daño del ADN/efectos de los fármacos , ADN Helicasas/genética , ADN Helicasas/metabolismo , Reparación del ADN , ADN-Topoisomerasas de Tipo II/genética , ADN-Topoisomerasas de Tipo II/metabolismo , Humanos , Ratones , Ácidos Picolínicos/farmacología , ARN Guía de Kinetoplastida/metabolismo , Proteína p53 Supresora de Tumor/deficiencia , Proteína p53 Supresora de Tumor/genética
2.
Mol Cell ; 78(6): 1152-1165.e8, 2020 06 18.
Artículo en Inglés | MEDLINE | ID: mdl-32516598

RESUMEN

The APEX2 gene encodes APE2, a nuclease related to APE1, the apurinic/apyrimidinic endonuclease acting in base excision repair. Loss of APE2 is lethal in cells with mutated BRCA1 or BRCA2, making APE2 a prime target for homologous recombination-defective cancers. However, because the function of APE2 in DNA repair is poorly understood, it is unclear why BRCA-deficient cells require APE2 for viability. Here we present the genetic interaction profiles of APE2, APE1, and TDP1 deficiency coupled to biochemical and structural dissection of APE2. We conclude that the main role of APE2 is to reverse blocked 3' DNA ends, problematic lesions that preclude DNA synthesis. Our work also suggests that TOP1 processing of genomic ribonucleotides is the main source of 3'-blocking lesions relevant to APEX2-BRCA1/2 synthetic lethality. The exquisite sensitivity of BRCA-deficient cells to 3' blocks indicates that they represent a tractable vulnerability in homologous recombination-deficient tumor cells.


Asunto(s)
Proteína BRCA1/metabolismo , Proteína BRCA2/metabolismo , ADN-(Sitio Apurínico o Apirimidínico) Liasa/metabolismo , Endonucleasas/metabolismo , Enzimas Multifuncionales/metabolismo , Proteína BRCA1/genética , Proteína BRCA2/genética , Línea Celular , ADN/metabolismo , Daño del ADN , Reparación del ADN/genética , ADN-(Sitio Apurínico o Apirimidínico) Liasa/genética , Endonucleasas/genética , Genes BRCA1/fisiología , Humanos , Enzimas Multifuncionales/genética , Hidrolasas Diéster Fosfóricas/genética , Hidrolasas Diéster Fosfóricas/metabolismo
3.
Lancet Oncol ; 25(3): 293-307, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38307102

RESUMEN

BACKGROUND: Cancer survivors-people living with and beyond cancer-are a growing population with different health needs depending on prognosis and time since diagnosis. Despite being increasingly necessary, complete information on cancer prevalence is not systematically available in all European countries. We aimed to fill this gap by analysing population-based cancer registry data from the EUROCARE-6 study. METHODS: In this population-based study, using incidence and follow-up data up to Jan 1, 2013, from 61 cancer registries, complete and limited-duration prevalence by cancer type, sex, and age were estimated for 29 European countries and the 27 countries in the EU (EU27; represented by 22 member states that contributed registry data) using the completeness index method. We focused on 32 malignant cancers defined according to the third edition of the International Classification of Diseases for Oncology, and only the first primary tumour was considered when estimating the prevalence. Prevalence measures are expressed in terms of absolute number of prevalent cases, crude prevalence proportion (reported as percentage or cases per 100 000 resident people), and age-standardised prevalence proportion based on the European Standard Population 2013. We made projections of cancer prevalence proportions up to Jan 1, 2020, using linear regression. FINDINGS: In 2020, 23 711 thousand (95% CI 23 565-23 857) people (5·0% of the population) were estimated to be alive after a cancer diagnosis in Europe, and 22 347 thousand (95% CI 22 210-22 483) in EU27. Cancer survivors were more frequently female (12 818 thousand [95% CI 12 720-12 917]) than male (10 892 thousand [10 785-11 000]). The five leading tumours in female survivors were breast cancer, colorectal cancer, corpus uterine cancer, skin melanoma, and thyroid cancer (crude prevalence proportion from 2270 [95%CI 2248-2292] per 100 000 to 301 [297-305] per 100 000). Prostate cancer, colorectal cancer, urinary bladder cancer, skin melanoma, and kidney cancer were the most common tumours in male survivors (from 1714 [95% CI 1686-1741] per 100 000 to 255 [249-260] per 100 000). The differences in prevalence between countries were large (from 2 to 10 times depending on cancer type), in line with the demographic structure, incidence, and survival patterns. Between 2010 and 2020, the number of prevalent cases increased by 3·5% per year (41% overall), partly due to an ageing population. In 2020, 14 850 thousand (95% CI 14 681-15 018) people were estimated to be alive more than 5 years after diagnosis and 9099 thousand (8909-9288) people were estimated to be alive more than 10 years after diagnosis, representing an increasing proportion of the cancer survivor population. INTERPRETATION: Our findings are useful at the country level in Europe to support evidence-based policies to improve the quality of life, care, and rehabilitation of patients with cancer throughout the disease pathway. Future work includes estimating time to cure by stage at diagnosis in prevalent cases. FUNDING: European Commission.


Asunto(s)
Neoplasias Colorrectales , Neoplasias Renales , Melanoma , Neoplasias Cutáneas , Humanos , Femenino , Masculino , Prevalencia , Calidad de Vida , Europa (Continente)/epidemiología
4.
Lancet Oncol ; 25(6): 731-743, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38703784

RESUMEN

BACKGROUND: Management of lymphoid malignancies requires substantial health system resources. Total national health expenditure might influence population-based lymphoid malignancy survival. We studied the long-term survival of patients with 12 lymphoid malignancy types and examined whether different levels of national health expenditure might explain differences in lymphoid malignancy prognosis between European countries and regions. METHODS: For this observational, retrospective, population-based study, we analysed the EUROCARE-6 dataset of patients aged 15 or older diagnosed between 2001 and 2013 with one of 12 lymphoid malignancies defined according to International Classification of Disease for Oncology (third edition) and WHO classification, and followed up to 2014 (Jan 1, 2001-Dec 31, 2014). Countries were classified according to their mean total national health expenditure quartile in 2001-13. For each lymphoid malignancy, 5-year and 10-year age-standardised relative survival (ASRS) was calculated using the period approach. Generalised linear models indicated the effects of age at diagnosis, gender, and total national health expenditure on the relative excess risk of death (RER). FINDINGS: 82 cancer registries (61 regional and 21 national) from 27 European countries provided data eligible for 10-year survival estimates comprising 890 730 lymphoid malignancy cases diagnosed in 2001-13. Median follow-up time was 13 years (IQR 13-14). Of the 12 lymphoid malignancies, the 10-year ASRS in Europe was highest for hairy cell leukaemia (82·6% [95% CI 78·9-86·5) and Hodgkin lymphoma (79·3% [78·6-79·9]) and lowest for plasma cell neoplasms (29·5% [28·9-30·0]). RER increased with age at diagnosis, particularly from 55-64 years to 75 years or older, for all lymphoid malignancies. Women had higher ASRS than men for all lymphoid malignancies, except for precursor B, T, or natural killer cell, or not-otherwise specified lymphoblastic lymphoma or leukaemia. 10-year ASRS for each lymphoid malignancy was higher (and the RER lower) in countries in the highest national health expenditure quartile than in countries in the lowest quartile, with a decreasing pattern through quartiles for many lymphoid malignancies. 10-year ASRS for non-Hodgkin lymphoma, the most representative class for lymphoid malignancies based on the number of incident cases, was 59·3% (95% CI 58·7-60·0) in the first quartile, 57·6% (55·2-58·7) in the second quartile, 55·4% (54·3-56·5) in the third quartile, and 44·7% (43·6-45·8) in the fourth quartile; with reference to the European mean, the RER was 0·80 (95% CI 0·79-0·82) in the first, 0·91 (0·90-0·93) in the second, 0·94 (0·92-0·96) in the third, and 1·45 (1·42-1·48) in the fourth quartiles. INTERPRETATION: Total national health expenditure is associated with geographical inequalities in lymphoid malignancy prognosis. Policy decisions on allocating economic resources and implementing evidence-based models of care are needed to reduce these differences. FUNDING: Italian Ministry of Health, European Commission, Estonian Research Council.


Asunto(s)
Gastos en Salud , Humanos , Masculino , Estudios Retrospectivos , Femenino , Persona de Mediana Edad , Adulto , Gastos en Salud/estadística & datos numéricos , Anciano , Europa (Continente)/epidemiología , Adulto Joven , Adolescente , Linfoma/mortalidad , Linfoma/epidemiología , Linfoma/economía , Sistema de Registros , Anciano de 80 o más Años , Pronóstico , Factores de Tiempo
5.
Int J Cancer ; 155(2): 270-281, 2024 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-38520231

RESUMEN

People alive many years after breast (BC) or colorectal cancer (CRC) diagnoses are increasing. This paper aimed to estimate the indicators of cancer cure and complete prevalence for Italian patients with BC and CRC by stage and age. A total of 31 Italian Cancer Registries (47% of the population) data until 2017 were included. Mixture cure models allowed estimation of net survival (NS); cure fraction (CF); time to cure (TTC, 5-year conditional NS >95%); cure prevalence (who will not die of cancer); and already cured (prevalent patients living longer than TTC). 2.6% of all Italian women (806,410) were alive in 2018 after BC and 88% will not die of BC. For those diagnosed in 2010, CF was 73%, 99% when diagnosed at stage I, 81% at stage II, and 36% at stages III-IV. For all stages combined, TTC was >10 years under 45 and over 65 years and for women with advanced stages, but ≤1 year for all BC patients at stage I. The proportion of already cured prevalent BC women was 75% (94% at stage I). Prevalent CRC cases were 422,407 (0.7% of the Italian population), 90% will not die of CRC. For CRC patients, CF was 56%, 92% at stage I, 71% at stage II, and 35% at stages III-IV. TTC was ≤10 years for all age groups and stages. Already cured were 59% of all prevalent CRC patients (93% at stage I). Cancer cure indicators by stage may contribute to appropriate follow-up in the years after diagnosis, thus avoiding patients' discrimination.


Asunto(s)
Neoplasias de la Mama , Neoplasias Colorrectales , Estadificación de Neoplasias , Sistema de Registros , Humanos , Femenino , Neoplasias Colorrectales/epidemiología , Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/patología , Italia/epidemiología , Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/terapia , Neoplasias de la Mama/patología , Neoplasias de la Mama/mortalidad , Persona de Mediana Edad , Anciano , Prevalencia , Adulto , Anciano de 80 o más Años , Masculino
6.
Mol Genet Metab ; 142(1): 108444, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38555683

RESUMEN

Alpha-mannosidosis is an ultra-rare lysosomal disease that is caused by variants of the MAN2B1 gene on chromosome 19p13. These variants result in faulty or absent alpha-mannosidase in lysosomes, which leads to intracellular accumulation of mannose-containing oligosaccharides. Diagnosis of alpha-mannosidosis is often delayed, in part because of the rarity of the disease, its gradual onset and heterogeneity of presentation, but also because of the similarity of many signs and symptoms of the disease to those of other lysosomal diseases. Treatment of alpha-mannosidosis was previously limited to hematopoietic stem cell transplantation, but outcomes are variable and not all patients are eligible or have a suitable donor. Recently, an enzyme replacement therapy, recombinant human alpha-mannosidase (velmanase alfa), was approved for the treatment of non-neurological manifestations in adult and pediatric patients with alpha-mannosidosis. Treatment with velmanase alfa reduces serum levels of oligosaccharides, increases levels of immunoglobulin G, and improves patients' functional capacity and quality of life, although it is not effective for the neurologic phenotype because it does not cross the blood-brain barrier. Since the effects of velmanase alfa are more marked in children than adults, early diagnosis to allow early initiation of treatment has become more important. To support this, patient, parent/caregiver, and clinician awareness and education is imperative. A number of approaches can be taken to meet this goal, such as the development of disease registries, validated diagnostic algorithms, and screening tools, improved under-/post-graduate clinician education, easily accessible and reliable information for patients/families (such as that made available on the internet), and the formation of patient advocacy groups. Such approaches may raise awareness of alpha-mannosidosis, reduce the diagnostic delay and thus improve the lives of those affected.


Asunto(s)
Diagnóstico Tardío , Terapia de Reemplazo Enzimático , alfa-Manosidasa , alfa-Manosidosis , Humanos , alfa-Manosidosis/diagnóstico , alfa-Manosidosis/genética , alfa-Manosidasa/genética , Enfermedades Raras/diagnóstico , Enfermedades Raras/genética
7.
J Clin Nurs ; 33(4): 1571-1574, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38343015

RESUMEN

AIM: To report a reflection on the role, challenges and opportunities for nurses with advanced education in research outside the academic field. DESIGN: A discursive paper. DATA SOURCES: We reported the case of an Italian paediatric research hospital where PhD-prepared nurses started to apply their knowledge and competencies in different fields, both in clinical and organizational settings. From this experience, an overview of the possible barriers and challenges that PhD-prepared nurses may face up within the hospital setting. DISCUSSION: The application of PhD-prepared nurses in hospital settings could be an opportunity to advance high standards of quality of care in managerial and clinical areas and to create networks between highly specialized professional figures and different clinical-care realities. CONCLUSION: More research is needed to explore how to apply the advanced competencies of PhD-prepared nurses within healthcare organizations to provide high-quality and safe care and services. This paper can provide insights for a reflection on applying and developing PhD-prepared nurses' skills and competencies within the hospital setting in clinical, research and managerial areas. This can enhance the effective application of highly competent nursing professional figures. PATIENT OR PUBLIC CONTRIBUTION: No Patient or Public Contribution, due to study design.


Asunto(s)
Educación de Postgrado en Enfermería , Hospitales Pediátricos , Niño , Humanos , Instituciones de Atención Ambulatoria , Escolaridad , Italia
8.
J Pediatr Nurs ; 74: 10-16, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-37980795

RESUMEN

PURPOSE: To examine informal carers' experiences during their child's hospitalization and evaluate the associations with care received and care context. DESIGN AND METHODS: What is described in this article is only a part of the larger study, RN4CAST@IT-Ped, a multicenter cross-sectional study, with multi-level data collection through convenience sampling, the Child Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) survey was used to collect data from informal carers of pediatric patients, applying the "top box" approach. RESULTS: Nine hospitals, 1472 nurses, and 635 children's parents were involved. A correlation was found between patient safety and satisfaction outcomes and nursing staff characteristics. Adequate workloads for nurses improved carers' assessment of their experience in the hospital. CONCLUSION: Adequate staffing management could significantly improve informal carers' satisfaction with the care provided to their children during hospitalization. PRACTICE IMPLICATIONS: Children's informal carers greatly value the care they receive in pediatric hospitals. Adequate workloads for nurses improve carers' overall evaluation of the care their children receive during hospitalization. Nursing management should consider improving these aspects to ensure high-quality care in children's hospitals.


Asunto(s)
Cuidadores , Hospitalización , Niño , Humanos , Estudios Transversales , Encuestas y Cuestionarios , Italia
9.
Artículo en Inglés | MEDLINE | ID: mdl-37481716

RESUMEN

OBJECTIVES: Autoantibody-negative rheumatoid arthritis (RA) differs from autoantibody-positive RA in several clinical aspects, possibly underpinned by pathogenetic differences. At present, the role of adaptive immune responses in autoantibody-negative RA remains unclear. Here, we investigated the synovial and serum immunophenotype indicative of B-lymphocyte involvement across the spectrum of autoantibody-positive and -negative chronic arthritides. METHODS: Ultrasound-guided synovial biopsies were retrieved from 131 patients: 43 autoantibody-positive RA, 35 autoantibody-negative RA, 25 polyarticular psoriatic arthritis (PsA), 28 oligoarticular PsA. Samples were analysed for the degree of histological inflammation, B-lymphocyte infiltration and the distribution of different pathotypes (lympho-myeloid, myeloid, pauci-immune). Serum levels of the B-cell chemoattractant CXCL13 were compared among groups. RESULTS: Synovitis scores and CD68+ sublining macrophage infiltration were comparable irrespective of clinical diagnosis and disease subtype. In contrast, the degree of B-lymphocyte infiltration and the frequency of lympho-myeloid synovitis in autoantibody-negative RA were lower than those of autoantibody-positive RA (mean [SD] 1.8 [1] vs 2.4 [0.6], p = 0.03 and 38.2% vs 62.9%, p = 0.07, respectively), and similar to polyarticular PsA. Oligoarticular PsA had the lowest B-cell scores. Serum CXCL13 was associated with lympho-myeloid synovitis and followed a similar gradient, with the highest levels in autoantibody-positive RA, intermediate and comparable levels in autoantibody-negative RA and polyarticular PsA, and low levels in oligoarticular PsA. CONCLUSIONS: The synovial and serum immunophenotype indicative of B-lymphocyte involvement in autoantibody-negative RA differs from autoantibody-positive RA and more closely resembles that observed in polyarticular PsA. The pathobiological stratification of chronic inflammatory arthritides beyond clinical diagnosis may fuel personalised treatment strategies.

10.
Biomacromolecules ; 24(4): 1731-1743, 2023 04 10.
Artículo en Inglés | MEDLINE | ID: mdl-36922716

RESUMEN

Peripheral nerve injury is one of the most debilitating pathologies that severely impair patients' life. Although many efforts have been made to advance in the treatment of such a complex disorder, successful strategies to ensure full recovery are still scarce. The aim of the present work was to develop flexible and mechanically resistant platforms intended to act as a support and guide for neural cells during the regeneration process of peripheral nerve injury. For this purpose, poly(lactic-co-glycolic acid) (PLGA)/poly(d,l-lactic acid) (PDLLA)/poly(ethylene glycol) 400 (PEG)-multichannel-based scaffolds (MCs) were prepared through a multistep process involving electrospun microfibers coated with a polymer blend solution and used as a sacrificial mold. In particular, scaffolds characterized by random (MCR) and aligned (MCA) multichannel were obtained. A design of experiments approach (DoE) was employed to identify a scaffold-optimized composition. MCs were characterized for morphological and mechanical properties, suturability, degradability, cell colonization, and in vivo safety. A new biodegradable, biocompatible, and safe microscale multichannel scaffold was developed as the result of an easy multistep procedure.


Asunto(s)
Traumatismos de los Nervios Periféricos , Ácido Poliglicólico , Humanos , Copolímero de Ácido Poliláctico-Ácido Poliglicólico , Ácido Láctico , Andamios del Tejido
11.
Am J Dermatopathol ; 45(12): 839-842, 2023 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-37982466

RESUMEN

ABSTRACT: We report an unusual case of schwannoma with glandular elements that demonstrated apocrine decapitation secretion. The glandular structures were embedded within the tumor, varied in shape and size, and were lined by a double-to-multilayered epithelium, with the inner layer composed of monomorphous cuboidal to columnar cells, focally with apocrine decapitation secretion, and the outer layer representing myoepithelial cells. A normal eccrine unit was observed near the lesion. Immunohistochemical studies showed that all luminal cells of the glandular structures stained positive for CK7, whereas myoepithelial cells expressed S100 and p63, and epithelial membrane antigen highlighted the luminal border. CK20 and neuroendocrine markers were negative in the glandular elements.Our findings suggest that the origin of the glandular elements in our case was represented by entrapped glands. Two theories may explain the epithelial hyperplasia observed in the present case as follows: the obstructive effect theory and the inductive ability of a mesenchymal proliferation to produce epidermal or adnexal changes. We suggest that, in a subset of cases, the origin of the glandular elements might represent entrapped glands, wherein their histomorphology/cytomorphology recapitulates the elements comprising the normal adjacent tissue. Further research is necessary to elucidate the histogenesis of glandular schwannoma.


Asunto(s)
Decapitación , Neurilemoma , Humanos , Extremidades , Células Epiteliales , Diferenciación Celular
12.
Anaerobe ; 82: 102757, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37380012

RESUMEN

OBJECTIVE: The aim of this study was to analyze enterotoxigenic Bacteroides fragilis (ETBF) isolates from colorectal biopsies of subjects with a histological analysis positive for colorectal cancer (CRC), pre-cancerous lesions (pre-CRC) or with a healthy intestinal tissue and to evaluate the environmental factors that may not only concur to CRC development but may also affect gut microbiota composition. METHODS: ETBF isolates were typed using the ERIC-PCR method, while PCR assays were performed to investigate the bft alleles, the B. fragilis pathogenicity island (BFPAI) region and the cepA, cfiA and cfxA genes. Susceptibility to antibiotics was tested using the agar dilution method. Environmental factors that could play a role in promoting intestinal dysbiosis were evaluated throughout a questionnaire administered to the subjects enrolled. RESULTS: Six different ERIC-PCR types were identified. The type denominated C in this study was the most prevalent, in particular among the biopsies of subjects with pre-CRC, while an isolate belonging to a different type, denominated F, was detected in a biopsy from a subject with CRC. All the ETBF isolates from pre-CRC or CRC subjects had a B. fragilis pathogenicity island (BFPAI) region pattern I, while those from healthy individuals showed also different patterns. Furthermore, 71% of isolates from subjects with pre-CRC or CRC were resistant to two or more classes of antibiotics vs 43% of isolates from healthy individuals. The B. fragilis toxin BFT1 was the most frequently detected in this study, confirming the constant circulation of this isoform strains in Italy. Interestingly, BFT1 was found in 86% of the ETBF isolates from patients with CRC or pre-CRC, while the BFT2 was prevalent among the ETBF isolates from healthy subjects. No substantial differences based on sex, age, tobacco and alcohol consumption were observed between healthy and non-healthy individuals included in this study, while most of the subjects with CRC or pre-CRC lesions were subjected to pharmacological therapy (71%) and showed a body mass index (BMI) that falls within the overweight range (86%). CONCLUSIONS: Our data suggest that some types of ETBF seem to better adapt and colonize the human gut and that the selective pressure exerted by factors related to lifestyle, such as pharmacological therapy and weight, could facilitate their persistence in the gut and their possible involvement in CRC development.


Asunto(s)
Infecciones Bacterianas , Toxinas Bacterianas , Infecciones por Bacteroides , Neoplasias Colorrectales , Humanos , Bacteroides fragilis , Toxinas Bacterianas/genética , Disbiosis , Metaloendopeptidasas/genética , Infecciones por Bacteroides/microbiología , Neoplasias Colorrectales/microbiología , Antibacterianos
13.
Int J Mol Sci ; 24(4)2023 Feb 06.
Artículo en Inglés | MEDLINE | ID: mdl-36834584

RESUMEN

Tendon disorders are common medical conditions that could lead to significant disability, pain, healthcare costs, and a loss of productivity. Traditional approaches require long periods of treatment, and they largely fail due to the tissues weakening and the postoperative alterations of the normal joint mechanics. To overcome these limitations, innovative strategies for the treatment of these injuries need to be explored. The aim of the present work was the design of nano-fibrous scaffolds based on poly(butyl cyanoacrylate) (PBCA), a well-known biodegradable and biocompatible synthetic polymer, doped with copper oxide nanoparticles and caseinphosphopeptides (CPP), able to mimic the hierarchical structure of the tendon and to improve the tissue healing potential. These were developed as implants to be sutured to reconstruct the tendons and the ligaments during surgery. PBCA was synthetized, and then electrospun to produce aligned nanofibers. The obtained scaffolds were characterized for their structure and physico-chemical and mechanical properties, highlighting that CuO and CPP loading, and the aligned conformation determined an increase in the scaffold mechanical performance. Furthermore, the scaffolds loaded with CuO showed antioxidant and anti-inflammatory properties. Moreover, human tenocytes adhesion and proliferation to the scaffolds were assessed in vitro. Finally, the antibacterial activity of the scaffolds was evaluated using Escherichia coli and Staphylococcus aureus as representative of Gram-negative and Gram-positive bacteria, respectively, demonstrating that the CuO-doped scaffolds possessed a significant antimicrobial effect against E. coli. In conclusion, scaffolds based on PBCA and doped with CuO and CPP deserve particular attention as enhancers of the tendon tissue regeneration and able to avoid bacterial adhesion. Further investigation on the scaffold efficacy in vivo will assess their capability for enhancing the tendon ECM restoration in view of accelerating their translation to the clinic.


Asunto(s)
Enbucrilato , Nanofibras , Humanos , Ingeniería de Tejidos , Andamios del Tejido/química , Escherichia coli , Tendones , Nanofibras/química , Poliésteres/química
14.
Pathologica ; 115(2): 71-82, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37017301

RESUMEN

Cholangiocarcinoma (CCA) is a heterogeneous group of neoplasms burdened by a dismal prognosis. Several studies have investigated the genomic profile of CCA and identified numerous druggable genetic alterations, including FGFR2 fusions/rearrangements. Approximately 5-7% of CCAs and 10-20% of intrahepatic iCCAs harbor FGFR2 fusions. With the recent advent of FGFR-targeting therapies into clinical practice, a standardization of molecular testing for FGFR2 alterations in CCA will be necessary. In this review, we describe the technical aspects and challenges related to FGFR2 testing in routine practice, focusing on the comparison between Next-Generation Sequencing (NGS) and FISH assays, the best timing to perform the test, and on the role of liquid biopsy.


Asunto(s)
Neoplasias de los Conductos Biliares , Colangiocarcinoma , Humanos , Colangiocarcinoma/diagnóstico , Colangiocarcinoma/genética , Colangiocarcinoma/tratamiento farmacológico , Mutación , Pronóstico , Conductos Biliares Intrahepáticos/patología , Neoplasias de los Conductos Biliares/diagnóstico , Neoplasias de los Conductos Biliares/genética , Neoplasias de los Conductos Biliares/tratamiento farmacológico , Receptor Tipo 2 de Factor de Crecimiento de Fibroblastos/genética , Receptor Tipo 2 de Factor de Crecimiento de Fibroblastos/uso terapéutico
15.
Lancet Oncol ; 23(12): 1525-1536, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-36400102

RESUMEN

BACKGROUND: The EUROCARE-5 study revealed disparities in childhood cancer survival among European countries, giving rise to important initiatives across Europe to reduce the gap. Extending its representativeness through increased coverage of eastern European countries, the EUROCARE-6 study aimed to update survival progress across countries and years of diagnosis and provide new analytical perspectives on estimates of long-term survival and the cured fraction of patients with childhood cancer. METHODS: In this population-based study, we analysed 135 847 children (aged 0-14 years) diagnosed during 2000-13 and followed up to the end of 2014, recruited from 80 population-based cancer registries in 31 European countries. We calculated age-adjusted 5-year survival differences by country and over time using period analysis, for all cancers combined and for major cancer types. We applied a variant of standard mixture cure models for survival data to estimate the cure fraction of patients by childhood cancer and to estimate projected 15-year survival. FINDINGS: 5-year survival for all childhood cancer combined in Europe in 2010-14 was 81% (95% CI 81-82), showing an increase of three percentage points compared with 2004-06. Significant progress over time was observed for almost all cancers. Survival remained stable for osteosarcomas, Ewing sarcoma, Burkitt lymphoma, non-Hodgkin lymphomas, and rhabdomyoscarcomas. For all cancers combined, inequalities still persisted among European countries (with age-adjusted 5-year survival ranging from 71% [95% CI 60-79] to 87% [77-93]). The 15-year survival projection for all patients with childhood cancer diagnosed in 2010-13 was 78%. We estimated the yearly long-term mortality rate due to causes other than the diagnosed cancer to be around 2 per 1000 patients for all childhood cancer combined, but to approach zero for retinoblastoma. The cure fraction for patients with childhood cancer increased over time from 74% (95% CI 73-75) in 1998-2001 to 80% (79-81) in 2010-13. In the latter cohort, the cure fraction rate ranged from 99% (95% CI 74-100) for retinoblastoma to 60% (58-63) for CNS tumours and reached 90% (95% CI 87-93) for lymphoid leukaemia and 70% (67-73) for acute myeloid leukaemia. INTERPRETATION: Childhood cancer survival is increasing over time in Europe but there are still some differences among countries. Regular monitoring of childhood cancer survival and estimation of the cure fraction through population-based registry data are crucial for evaluating advances in paediatric cancer care. FUNDING: European Commission.


Asunto(s)
Neoplasias Óseas , Linfoma de Burkitt , Neoplasias de la Retina , Retinoblastoma , Sarcoma de Ewing , Niño , Humanos , Europa (Continente)/epidemiología
16.
Rheumatology (Oxford) ; 61(10): 4124-4129, 2022 10 06.
Artículo en Inglés | MEDLINE | ID: mdl-35078234

RESUMEN

OBJECTIVE: To compare clinical features and treatments of patients with systemic JIA (sIJA) and adult-onset Still's disease (AOSD). METHODS: The clinical charts of consecutive patients with sJIA by International League of Association of Rheumatology criteria or AOSD by Yamaguchi criteria were reviewed. Patients were seen at a large paediatric rheumatology referral centre or at 10 adult rheumatology academic centres. Data collected included clinical manifestations, inflammation biomarkers, systemic score, macrophage activation syndrome (MAS), parenchymal lung disease, disease course, disability, death and medications administered. RESULTS: A total of 166 patients (median age at diagnosis 5 years) with sJIA and 194 patients with AOSD (median age at diagnosis 41 years) were included. The frequency of fever, rash, arthralgia, abdominal pain, MAS, parenchymal lung disease and increased acute phase reactants and ferritin were comparable between the two cohorts. Patients with sJIA had a higher prevalence of arthritis, whereas patients with AOSD had experienced leucocytosis and extra-articular organ involvement more frequently. Patients with AOSD were given more commonly low-dose corticosteroids, whereas biologic DMARDs were administered first-line more frequently in patients with sJIA. CONCLUSION: We found remarkable disparities in the prevalence of clinical manifestations between the two illnesses, which may partly depend on their classification by different criteria.


Asunto(s)
Antirreumáticos , Artritis Juvenil , Productos Biológicos , Enfermedades Pulmonares , Síndrome de Activación Macrofágica , Enfermedad de Still del Adulto , Proteínas de Fase Aguda , Corticoesteroides/uso terapéutico , Adulto , Antirreumáticos/uso terapéutico , Artritis Juvenil/diagnóstico , Artritis Juvenil/tratamiento farmacológico , Artritis Juvenil/epidemiología , Productos Biológicos/uso terapéutico , Biomarcadores , Niño , Ferritinas , Humanos , Síndrome de Activación Macrofágica/diagnóstico , Síndrome de Activación Macrofágica/epidemiología , Síndrome de Activación Macrofágica/etiología , Prevalencia , Enfermedad de Still del Adulto/diagnóstico , Enfermedad de Still del Adulto/tratamiento farmacológico , Enfermedad de Still del Adulto/epidemiología
17.
Clin Exp Rheumatol ; 40(8): 1517-1525, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35579097

RESUMEN

OBJECTIVES: In this study, we aimed at describing the clinical characteristics, life-threatening complications occurrence, and mortality of adult-onset Still's disease (AOSD) patients with elderly onset. METHODS: A multicentre retrospective study of prospectively followed-up AOSD patients included in Gruppo Italiano di Ricerca in Reumatologia Clinica e Sperimentale (GIRRCS) cohort was performed. RESULTS: Out of 221 assessed patients, 37 (16.7%) had an onset of the disease aged over 60 years. When compared with younger patients, these were characterised by a higher prevalence of pericarditis (p=0.008), comorbidities (p<0.0001), and mortality (p=0.023). Age predicted the presence of serositis in both univariate (HR: 1.02, 95%CI: 1.01-1.03, p=0.007) and multivariate analyses (HR: 1.02, 95%CI: 1.01-1.04, p=0.007). Age was also a significant predictor of parenchymal lung disease in both univariate (HR: 1.03, 95%CI: 1.01-1.05, p=0.017) and multivariate analyses (HR: 1.03, 95%CI: 1.00-1.05, p=0.048). Furthermore, age resulted to be a negative predictor of polycyclic pattern only in univariate analysis (HR: 0.99, 95%CI: 0.97-1.00, p=0.048). Finally, age significantly predicted the mortality in both univariate (HR: 1.03, 95%CI: 1.00-1.06, p=0.034) and multivariate analyses (HR: 1.05, 95%CI: 1.01-1.08, p=0.012). CONCLUSIONS: Clinical features of AOSD patients in the elderly were described in our cohort. Although the main clinical characteristics were similar comparing older and younger patients, patients aged over 60 years at disease onset were characterised by an increased prevalence of serositis, comorbidities, mostly cardiometabolic, and a higher mortality rate. Age predicted the presence of parenchymal lung disease and mortality, and it could be considered a negative prognostic factor in AOSD.


Asunto(s)
Enfermedades Pulmonares , Síndrome de Activación Macrofágica , Serositis , Enfermedad de Still del Adulto , Adulto , Anciano , Humanos , Síndrome de Activación Macrofágica/complicaciones , Persona de Mediana Edad , Estudios Retrospectivos , Enfermedad de Still del Adulto/complicaciones , Enfermedad de Still del Adulto/diagnóstico
18.
J Med Internet Res ; 24(1): e29656, 2022 01 13.
Artículo en Inglés | MEDLINE | ID: mdl-34854814

RESUMEN

BACKGROUND: Social robots (SRs) have been used for improving anxiety in children in stressful clinical situations, such as during painful procedures. However, no studies have yet been performed to assess their effect in children while waiting for emergency room consultations. OBJECTIVE: This study aims to assess the impact of SRs on managing stress in children waiting for an emergency room procedure through the assessment of salivary cortisol levels. METHODS: This was an open randomized clinical trial in children attending a pediatric emergency department. Children accessing the emergency room were randomized to 1 of 3 groups: (1) playing with a NAO SR, (2) playing with a study nurse, or (3) waiting with parents. The salivary cortisol levels of all children were measured through a swab. Salivary cortisol levels before and after the intervention were compared in the 3 groups. We calculated the effect size of our interventions through the Cohen d-based effect size correlation (r). RESULTS: A total of 109 children aged 3-10 years were enrolled in the study, and 94 (86.2%) had complete data for the analyses. Salivary cortisol levels significantly decreased more in the group exposed to robot interaction than in the other two groups (r=0.75). Cortisol levels decreased more in girls (r=0.92) than in boys (r=0.57). CONCLUSIONS: SRs are efficacious in decreasing stress in children accessing the emergency room and may be considered a tool for improving emotional perceptions of children and their families in such a critical setting. TRIAL REGISTRATION: ClinicalTrials.gov NCT04627909; https://clinicaltrials.gov/ct2/show/study/NCT04627909.


Asunto(s)
Robótica , Aminoacridinas , Niño , Servicio de Urgencia en Hospital , Femenino , Humanos , Masculino , Padres , Interacción Social
19.
Int J Mol Sci ; 23(10)2022 May 14.
Artículo en Inglés | MEDLINE | ID: mdl-35628307

RESUMEN

Metabolic syndrome (MetS) is a highly prevalent condition among adult males, affecting up to 41% of men in Europe. It is characterized by the association of obesity, hypertension, and atherogenic dyslipidemia, which lead to premature morbidity and mortality due to cardiovascular disease (CVD). Male infertility is another common condition which accounts for about 50% of cases of couple infertility worldwide. Interestingly, male infertility and MetS shares several risk factors (e.g., smoking, ageing, physical inactivity, and excessive alcohol consumption), leading to reactive oxygen species (ROS) production and increased oxidative stress (OS), and resulting in endothelial dysfunction and altered semen quality. Thus, the present narrative review aims to discuss the pathophysiological mechanisms which link male infertility and MetS and to investigate the latest available evidence on the reproductive consequences of MetS.


Asunto(s)
Enfermedades Cardiovasculares , Enfermedades del Sistema Endocrino , Infertilidad Masculina , Síndrome Metabólico , Adulto , Enfermedades Cardiovasculares/complicaciones , Enfermedades del Sistema Endocrino/complicaciones , Fertilidad , Humanos , Infertilidad Masculina/etiología , Infertilidad Masculina/metabolismo , Masculino , Síndrome Metabólico/complicaciones , Análisis de Semen
20.
Molecules ; 27(17)2022 Sep 05.
Artículo en Inglés | MEDLINE | ID: mdl-36080495

RESUMEN

In this paper, we report on the preparation of Imidazole-functionalized glass surfaces, demonstrating the ability of a dinuclear Cu(II) complex of a macrocyclic ligand to give a "cascade" interaction with the deprotonated forms of grafted imidazole moieties. In this way, we realized a prototypal example of an antimicrobial surface based on a supramolecular approach, obtaining a neat microbicidal effect using low amounts of the described copper complex.


Asunto(s)
Antibacterianos , Cobre , Antibacterianos/farmacología , Vidrio , Imidazoles/farmacología , Ligandos
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