Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 89
Filter
Add more filters

Country/Region as subject
Publication year range
1.
World J Urol ; 39(5): 1445-1452, 2021 May.
Article in English | MEDLINE | ID: mdl-32740803

ABSTRACT

PURPOSE: Therapeutic strategies for prostate cancer (PCa) have been evolving dramatically worldwide. The current article reports on the evolution of surgical management strategies for PCa in Italy. METHODS: The data from two independent Italian multicenter projects, the MIRROR-SIU/LUNA (started in 2007, holding data of 890 patients) and the Pros-IT-CNR project (started in 2014, with data of 692 patients), were compared. Differences in patients' characteristics were evaluated. Multivariable logistic regression models were used to identify characteristics associated with robot-assisted (RA) procedure, nerve sparing (NS) approach, and lymph node dissection (LND). RESULTS: The two cohorts did not differ in terms of age and prostate-specific antigen (PSA) levels at biopsy. Patients enrolled in the Pros-IT-CNR project more frequently were submitted to RA (58.8% vs 27.6%, p < 0.001) and NS prostatectomy (58.4% vs. 52.9%, p = 0.04), but received LND less frequently (47.7% vs. 76.7%, p < 0.001), as compared to the MIRROR-SIU/LUNA patients. At multivariate logistic models, Lower Gleason Scores (GS) and PSA levels were significantly associated with RA prostatectomy in both cohorts. As for the MIRROR-SIU/LUNA data, clinical T-stage was a predictor for NS (OR = 0.07 for T3, T4) and LND (OR = 2.41 for T2) procedures. As for Pros-IT CNR data, GS ≥ (4 + 3) and positive cancer cores ≥ 50% were decisive factors both for NS (OR 0.29 and 0.30) and LND (OR 7.53 and 2.31) strategies. CONCLUSIONS: PCa management has changed over the last decade in Italian centers: RA and NS procedures without LND have become the methods of choice to treat newly medium-high risk diagnosed PCa.


Subject(s)
Prostatectomy/methods , Prostatectomy/trends , Prostatic Neoplasms/surgery , Aged , Humans , Italy , Logistic Models , Male , Middle Aged , Prospective Studies , Time Factors
2.
Radiol Med ; 126(12): 1619-1656, 2021 Dec.
Article in English | MEDLINE | ID: mdl-34570309

ABSTRACT

INTRODUCTION: The COVID-19 pandemic has challenged healthcare systems worldwide over the last few months, and it continues to do so. Although some restrictions are being removed, it is not certain when the pandemic is going to be definitively over. Pandemics can be seen as a highly complex logistic scenario. From this perspective, some of the indications provided for palliative radiotherapy (PRT) during the COVID-19 pandemic could be maintained in the future in settings that limit the possibility of patients achieving symptom relief by radiotherapy. This paper has two aims: (1) to provide a summary of the indications for PRT during the COVID-19 pandemic; since some indications can differ slightly, and to avoid any possible contradictions, an expert panel composed of the Italian Association of Radiotherapy and Clinical Oncology (AIRO) and the Palliative Care and Supportive Therapies Working Group (AIRO-palliative) voted by consensus on the summary; (2) to introduce a clinical care model for PRT [endorsed by AIRO and by a spontaneous Italian collaborative network for PRT named "La Rete del Sollievo" ("The Net of Relief")]. The proposed model, denoted "No cOmpRoMise on quality of life by pALliative radiotherapy" (NORMALITY), is based on an AIRO-palliative consensus-based list of clinical indications for PRT and on practical suggestions regarding the management of patients potentially suitable for PRT but dealing with highly complex logistics scenarios (similar to the ongoing logistics limits due to COVID-19). MATERIAL AND METHODS: First, a summary of the available literature guidelines for PRT published during the COVID-19 pandemic was prepared. A systematic literature search based on the PRISMA approach was performed to retrieve the available literature reporting guideline indications fully or partially focused on PRT. Tables reporting each addressed clinical presentation and respective literature indications were prepared and distributed into two main groups: palliative emergencies and palliative non-emergencies. These summaries were voted in by consensus by selected members of the AIRO and AIRO-palliative panels. Second, based on the summary for palliative indications during the COVID-19 pandemic, a clinical care model to facilitate recruitment and delivery of PRT to patients in complex logistic scenarios was proposed. The summary tables were critically integrated and shuffled according to clinical presentations and then voted on in a second consensus round. Along with the adapted guideline indications, some methods of performing the first triage of patients and facilitating a teleconsultation preliminary to the first in-person visit were developed. RESULTS: After the revision of 161 documents, 13 papers were selected for analysis. From the papers, 19 clinical presentation items were collected; in total, 61 question items were extracted and voted on (i.e., for each presentation, more than one indication was provided from the literature). Two tables summarizing the PRT indications during the COVID-19 pandemic available from the literature (PRT COVID-19 summary tables) were developed: palliative emergencies and palliative non-emergencies. The consensus of the vote by the AIRO panel for the PRT COVID-19 summary was reached. The PRT COVID-19 summary tables for palliative emergencies and palliative non-emergencies were adapted for clinical presentations possibly associated with patients in complex clinical scenarios other than the COVID-19 pandemic. The two new indication tables (i.e., "Normality model of PRT indications") for both palliative emergencies and palliative non-emergencies were voted on in a second consensus round. The consensus rate was reached and strong. Written forms facilitating two levels of teleconsultation (triage and remote visits) were also developed, both in English and in Italian, to evaluate the patients for possible indications for PRT before scheduling clinical visits. CONCLUSION: We provide a comprehensive summary of the literature guideline indications for PRT during COVID-19 pandemic. We also propose a clinical care model including clinical indications and written forms facilitating two levels of teleconsultation (triage and remote visits) to evaluate the patients for indications of PRT before scheduling clinical visits. The normality model could facilitate the provision of PRT to patients in future complex logistic scenarios.


Subject(s)
COVID-19/prevention & control , Neoplasms/radiotherapy , Palliative Care/methods , Radiation Oncology/methods , Consensus , Humans , Italy , Pandemics , Practice Guidelines as Topic , Societies, Medical
3.
Oncology ; 98(11): 763-770, 2020.
Article in English | MEDLINE | ID: mdl-32629446

ABSTRACT

OBJECTIVES: Induction chemotherapy followed by cetuximab and RT (IBRT) (Arm A) was compared to cisplatin/RT (CRT) (Arm B) in a randomized phase III study. PATIENTS AND METHODS: Naïve patients with stage III-IVa, histologically proven locally advanced head and neck cancer (LASCCHN) were eligible. Arm A (IBRT): 3 TPF induction followed by cetuximab-RT (equivalent daily dose 2 Gy up to 70 Gy); Arm B: 3 cisplatin concurrent with the same RT scheduling. Due to slow accrual and incomplete data collection a futility analysis was performed. RESULTS: 236/282 patients were evaluable. Therefore, no formal analyses can be made between the two arms. OS was 45.2/53.6 months in Arm A/B. Complete responses were achieved in 64% of patients in both arms. Neutropenia and skin toxicity were significantly worse in Arm A and body weight loss was significantly worse in Arm B. Compliance with the planned drug administration was higher in Arm B (p = 0.0008). CONCLUSION: The study suggests that IBRT and CRT have similar efficacy, activity and toxicity.


Subject(s)
Cetuximab/therapeutic use , Head and Neck Neoplasms/drug therapy , Head and Neck Neoplasms/radiotherapy , Squamous Cell Carcinoma of Head and Neck/drug therapy , Squamous Cell Carcinoma of Head and Neck/radiotherapy , Antineoplastic Agents, Immunological/adverse effects , Antineoplastic Agents, Immunological/therapeutic use , Cetuximab/adverse effects , Chemoradiotherapy , Cisplatin/adverse effects , Cisplatin/therapeutic use , Female , Head and Neck Neoplasms/pathology , Humans , Induction Chemotherapy , Male , Neoplasm Staging , Progression-Free Survival , Squamous Cell Carcinoma of Head and Neck/pathology
4.
Oncology ; 95(4): 202-210, 2018.
Article in English | MEDLINE | ID: mdl-29975952

ABSTRACT

The TNM classification is a worldwide standard staging system used to define the extent of cancer and is a major prognostic factor in predicting the outcome of patients. The TNM Classification of Malignant Tumours, 8th edition, has been used since January 1, 2018. In the area of head and neck cancer major modifications were produced: important updated T and N modification for oral cavity and nasopharyngeal cancer, the introduction of clinical and pathological stages for neck disease, and a new HPV-16-positive HNSCC classification. While until a few years ago the TNM staging system classified prognostic risk groups based on tumour size, the 8th edition responds to the need to categorize the prognosis of patients with similarly sized tumours but with very different clinical and biological behaviour. This review details TNM changes and the clinical need for these modifications, valuating possible limits in daily applicability.


Subject(s)
Carcinoma, Squamous Cell/classification , Head and Neck Neoplasms/classification , Carcinoma, Squamous Cell/pathology , Head and Neck Neoplasms/pathology , Humans , Neoplasm Staging , Squamous Cell Carcinoma of Head and Neck
5.
Health Qual Life Outcomes ; 16(1): 122, 2018 Jun 13.
Article in English | MEDLINE | ID: mdl-29898750

ABSTRACT

BACKGROUND: The National Research Council (CNR) prostate cancer monitoring project in Italy (Pros-IT CNR) is an observational, prospective, ongoing, multicentre study aiming to monitor a sample of Italian males diagnosed as new cases of prostate cancer. The present study aims to present data on the quality of life at time prostate cancer is diagnosed. METHODS: One thousand seven hundred five patients were enrolled. Quality of life is evaluated at the time cancer was diagnosed and at subsequent assessments via the Italian version of the University of California Los Angeles-Prostate Cancer Index (UCLA-PCI) and the Short Form Health Survey (SF-12). RESULTS: At diagnosis, lower scores on the physical component of the SF-12 were associated to older ages, obesity and the presence of 3+ moderate/severe comorbidities. Lower scores on the mental component were associated to younger ages, the presence of 3+ moderate/severe comorbidities and a T-score higher than one. Urinary and bowel functions according to UCLA-PCI were generally good. Almost 5% of the sample reported using at least one safety pad daily to control urinary loss; less than 3% reported moderate/severe problems attributable to bowel functions, and sexual function was a moderate/severe problem for 26.7%. Diabetes, 3+ moderate/severe comorbidities, T2 or T3-T4 categories and a Gleason score of eight or more were significantly associated with lower sexual function scores at diagnosis. CONCLUSIONS: Data collected by the Pros-IT CNR study have clarified the baseline status of newly diagnosed prostate cancer patients. A comprehensive assessment of quality of life will allow to objectively evaluate outcomes of different profile of care.


Subject(s)
Neoadjuvant Therapy/psychology , Prostatic Neoplasms/psychology , Prostatic Neoplasms/radiotherapy , Quality of Life , Activities of Daily Living , Age Factors , Aged , Health Surveys , Humans , Italy , Male , Middle Aged , Neoadjuvant Therapy/adverse effects , Percutaneous Coronary Intervention , Prospective Studies , Prostatic Neoplasms/physiopathology , Regression Analysis , Severity of Illness Index
6.
Strahlenther Onkol ; 193(11): 877-889, 2017 Nov.
Article in English | MEDLINE | ID: mdl-28616822

ABSTRACT

PURPOSE: Dysphagia is one of the most important treatment-related side effects in head and neck cancer (HNC), as it can lead to severe life-threating complications such as aspiration pneumonia and malnutrition. Intensity-modulated radiotherapy (IMRT) could reduce swallowing dysfunction by producing a concave dose distribution and reducing doses to the swallowing-related organs at risk (SWOARs). The aim of this study was to review the current literature in order to compare swallowing outcomes between IMRT and three-dimensional conformal radiotherapy (3DCRT). METHODS: A search was conducted in the PubMed and Embase databases to identify studies on swallowing outcomes, both clinically and/or instrumentally assessed, after 3DCRT and IMRT. Dysphagia-specific quality of life and objective instrumental data are summarized and discussed. RESULTS: A total of 262 papers were retrieved from the searched databases. An additional 23 papers were retrieved by hand-searching the reference lists. Ultimately, 22 papers were identified which discussed swallowing outcomes after 3DCRT and IMRT for HNC. No outcomes from randomized trials were identified. CONCLUSION: Despite several methodological limitations, reports from the current literature seem to suggest better swallowing outcomes with IMRT compared to 3DCRT. Further improvements are likely to result from the increased use of IMRT plans optimized for SWOAR sparing.


Subject(s)
Carcinoma, Squamous Cell/radiotherapy , Deglutition Disorders/diagnosis , Deglutition/radiation effects , Otorhinolaryngologic Neoplasms/radiotherapy , Radiation Injuries/diagnosis , Radiotherapy, Conformal/adverse effects , Radiotherapy, Intensity-Modulated/adverse effects , Humans , Organs at Risk/radiation effects , Radiotherapy Dosage , Treatment Outcome
7.
Radiol Med ; 122(2): 140-145, 2017 Feb.
Article in English | MEDLINE | ID: mdl-27770265

ABSTRACT

Hadrontherapy has been in constant progress in the past decades. Due to the increasing interest in this field and the spreading of the technique in Italy and worldwide, the Italian Society of Radiation Oncology surveyed (by an online survey) its members regarding their perception of hadrontherapy. The survey outline addressed different items all related to hadrontherapy, such as: demographics (3 items), personal knowledge (5 items), actual use in clinical practice (5 items), and future perspectives and development (5 items). The survey was filled in by 224 radiation oncologists (RO). Among them, 74.6 % were RO with more than 5 years of clinical practice, and only 10.4 % RO in training. Median age was 46 years (range 27-77). 32.24 % admitted average knowledge about heavy particles radiobiology rationale and 32.42 % about the ongoing particle therapy clinical trials. Radioresistant tumors are perceived as-principal indications for carbon ions in 39.3 % of responders, and pediatric malignancies for protons in 37 %. Re-irradiation is highly recommended for 52.2 %. Strikingly, 38.8 % of participating ROs reported that, in the daily clinical practice, approximately less than 1 out of 10 patients asks to be referred for hadrontherapy. On the other side, 35.7 % claimed need for at least 3 up to 5 particle therapy centers in Italy. Overall, the results of the present survey highlight the interest of the Italian RO community for particle therapy among the other radiotherapy technique. Analysis of our results might picture the clinical attitude of the RO community towards hadrontherapy in Italy, and help in promoting targeted initiatives to spread clinical results and knowledge about technical innovations in this field.


Subject(s)
Health Knowledge, Attitudes, Practice , Heavy Ion Radiotherapy , Medical Oncology , Neoplasms/radiotherapy , Adult , Aged , Carbon/therapeutic use , Female , Heavy Ion Radiotherapy/instrumentation , Heavy Ion Radiotherapy/methods , Humans , Italy , Male , Middle Aged , Proton Therapy , Radiotherapy, Computer-Assisted/methods , Societies, Medical , Surveys and Questionnaires
9.
Invest New Drugs ; 33(2): 310-20, 2015 Apr.
Article in English | MEDLINE | ID: mdl-25603975

ABSTRACT

Introduction In complement to anti-EGFR therapy, the targeting of PI3K/AKT/mTOR signaling pathway is of particular interest in the management of Head and Neck Squamous Cell Carcinoma (HNSCC). Here, we assess the effects of PI3K inhibition combined with anti-EGFR monoclonal antibody cetuximab and/or irradiation (RT). Material and methods Anti-proliferative effects of the combination of buparlisib (a specific PI3K inhibitor), cetuximab and RT was determined in two HNSCC cell lines (CAL33, PI3KCA H1047R-mutated and CAL27, PI3KCA wild-type). We examined biochemical factors related to proliferation, apoptosis (caspases), DNA repair (ERCC1, XRCC1) and the PI3K pathway (pEGFR/EGFR, pAKT/AKT, p-p70, p4EBP1). Results The best synergistic combined treatment in inhibiting cell proliferation was sequence 2 (cetuximab followed by buparlisib) in both cell lines. Addition of RT increased sequence 2 anti-proliferative effect only in CAL27. Data on protein expression indicated a possible activation of mTORC2 complex and caspases proteins in CAL27 not seen in CAL33. In CAL33, the synergistic anti-proliferative effect of the two drugs may derive from the higher sensitivity of mutated cells to PI3K targeting. Conclusions Our study demonstrates a synergistic effect of cetuximab followed by buparlisib in both PI3KCA wild-type and mutated cells, even with different intracellular signaling cross-talk depending on mutational status.


Subject(s)
Aminopyridines/pharmacology , Antineoplastic Agents/pharmacology , Cetuximab/pharmacology , Head and Neck Neoplasms/drug therapy , Morpholines/pharmacology , Phosphatidylinositol 3-Kinases/metabolism , Apoptosis , Cell Line, Tumor , Cell Proliferation , Chemoradiotherapy/methods , DNA Repair/drug effects , Drug Resistance, Neoplasm/drug effects , ErbB Receptors/antagonists & inhibitors , Humans , Mechanistic Target of Rapamycin Complex 2 , Multiprotein Complexes/metabolism , TOR Serine-Threonine Kinases/metabolism
10.
Support Care Cancer ; 23(8): 2231-44, 2015 Aug.
Article in English | MEDLINE | ID: mdl-25564221

ABSTRACT

PURPOSE: Dermatologic adverse events (dAEs) in cancer treatment are frequent with the use of targeted therapies. These dAEs have been shown to have significant impact on health-related quality of life (HRQoL). While standardized assessment tools have been developed for physicians to assess severity of dAEs, there is a discord between objective and subjective measures. The identification of patient-reported outcome (PRO) instruments useful in the context of targeted cancer therapies is therefore important in both the clinical and research settings for the overall evaluation of dAEs and their impact on HRQoL. METHODS: A comprehensive, systematic literature search of published articles was conducted by two independent reviewers in order to identify PRO instruments previously utilized in patient populations with dAEs from targeted cancer therapies. The identified PRO instruments were studied to determine which HRQoL issues relevant to dAEs were addressed, as well as the process of development and validation of these instruments. RESULTS: Thirteen articles identifying six PRO instruments met the inclusion criteria. Four instruments were general dermatology (Skindex-16©, Skindex-29©, Dermatology Life Quality Index (DLQI), and DIELH-24) and two were symptom-specific (functional assessment of cancer therapy-epidermal growth factor receptor inhibitor-18 (FACT-EGFRI-18) and hand-foot syndrome 14 (HFS-14)). CONCLUSIONS: While there are several PRO instruments that have been tested in the context of targeted cancer therapy, additional work is needed to develop new instruments and to further validate the instruments identified in this study in patients receiving targeted therapies.


Subject(s)
Antineoplastic Agents/adverse effects , Neoplasms/drug therapy , Skin Diseases/chemically induced , Humans , Molecular Targeted Therapy/adverse effects , Patient Outcome Assessment , Quality of Life , Skin Diseases/diagnosis , Skin Diseases/psychology , Surveys and Questionnaires
11.
Oncology ; 86(4): 212-29, 2014.
Article in English | MEDLINE | ID: mdl-24820548

ABSTRACT

Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cause of cancer death worldwide. Its treatment is complex and evolving. In general, early-stage disease may be managed with single-modality treatment while an advanced stage (about 60% of clinical presentation) needs a multidisciplinary approach. In this setting concurrent chemoradiation has been associated with improvement in locoregional control and organ preservation, but at the cost of significant acute and chronic toxicity. Molecular target therapies specially directed to epidermal growth factor receptor (EGFR) might improve the outcomes and reduce toxicities. In recurrent-metastatic (R/M) HNSCC, cetuximab, a monoclonal antibody against EGFR, plus platinum-based chemotherapy (CT) allow an overall survival (OS) of about 10 months. However, the prognosis for R/M-HNSCC remains dismal and additional efforts are needed. At the 2013 American Society of Clinical Oncology (ASCO) Meeting, data on induction CT, anti-EGFR inhibitors, innovative molecular targets and predictor factors were reported. Further results on target therapies were presented at the European Cancer Congress (ECC) 2013, where a large study also showed that hyperfractionated radiotherapy (RT) improve OS rates compared with standard RT. The aim of this review is to discuss current standards and emerging therapies by considering recent new updates. © 2014 S. Karger AG, Basel.


Subject(s)
Carcinoma, Squamous Cell/therapy , Head and Neck Neoplasms/therapy , Antineoplastic Agents/therapeutic use , Carcinoma, Squamous Cell/enzymology , ErbB Receptors/metabolism , Head and Neck Neoplasms/enzymology , Humans , Squamous Cell Carcinoma of Head and Neck
12.
Support Care Cancer ; 22(7): 1889-96, 2014 Jul.
Article in English | MEDLINE | ID: mdl-24566870

ABSTRACT

PURPOSE: There is a limited number of therapies with a high level of recommendations for mucositis, while several strategies are currently employed with a limited evidence for efficacy. A national survey among Italian oncologists who treat head and neck cancer (HNC) was conducted in order to assess the most common preventive and therapeutic protocols (including nutritional support and pain control) for oral mucositis (OM) in patients undergoing chemoradiotherapy. METHODS: From September to November 2012, a nationwide electronic survey with 21 focused items was proposed to chemotherapy and radiotherapy centers. RESULTS: We collected 111 answers. Common Terminology Criteria for Adverse Events (CTCAE) scale is employed by 55% of the physicians in assessing mucosal toxicity. The most relevant predictive factors for OM development are considered smoke, alcohol use, planned radiotherapy, and concurrent use of radiosensitizing chemotherapy. Prophylactic gastrostomy is adopted in <10% of the patients. Preventive antibiotics or antimycotics are prescribed by 46% of the responders (mainly local or systemic antimycotic drugs). Alkalinizing mouthwashes or coating agents are frequently adopted (70% of the cases). Among therapeutic interventions, systemic fluconazole is administered by 80% of the physicians. Pain is mainly treated by weak followed by strong opioids. CONCLUSIONS: A variety of preventive and therapeutic protocols for OM exists among the participating Italian centers, with some uniformity in respect to nutritional support, use of antimycotic and painkillers. There is an urgent need for well-conducted clinical trials aimed at assessing the best choices for OM prevention and treatment in HNC.


Subject(s)
Head and Neck Neoplasms/drug therapy , Head and Neck Neoplasms/radiotherapy , Radiation Injuries/therapy , Stomatitis/therapy , Antineoplastic Agents/administration & dosage , Antineoplastic Agents/adverse effects , Chemoradiotherapy/adverse effects , Humans , Mouthwashes/administration & dosage , Radiation Injuries/etiology , Radiation Injuries/prevention & control , Stomatitis/etiology , Stomatitis/prevention & control
13.
Mediators Inflamm ; 2014: 518261, 2014.
Article in English | MEDLINE | ID: mdl-24757285

ABSTRACT

Treatment-related toxicities are common among patients with head and neck cancer, leading to poor clinical outcomes, reduced quality of life, and increased use of healthcare resources. Over the last decade, much has been learned about the pathogenesis of cancer regimen-related toxicities. Historically, toxicities were separated into those associated with tissue injury and those with behavioural or systemic changes. However, it is now clear that tissue-specific damage such as mucositis, dermatitis, or fibrosis is no longer the sole consequence of direct clonogenic cell death, and a relationship between toxicities that results in their presentation as symptom clusters has been documented and attributed to a common underlying pathobiology. In addition, the finding that patients commonly develop toxicities representing tissue injury outside radiation fields and side effects such as fatigue or cognitive dysfunction suggests the generation of systemic as well as local mediators. As a consequence, it might be appropriate to consider toxicity syndromes, rather than the traditional approach, in which each side effect was considered as an autonomous entity. In this paper, we propose a biologically based explanation which forms the basis for the diverse constellation of toxicities seen in response to current regimens used to treat cancers of the head and neck.


Subject(s)
Antineoplastic Agents/adverse effects , Chemoradiotherapy/methods , Head and Neck Neoplasms/drug therapy , Head and Neck Neoplasms/radiotherapy , Inflammation/physiopathology , Humans , Mucous Membrane/pathology , Oxidative Stress , Reactive Oxygen Species/metabolism , Signal Transduction , Treatment Outcome
14.
Invest New Drugs ; 31(5): 1107-14, 2013 Oct.
Article in English | MEDLINE | ID: mdl-23912257

ABSTRACT

Introduction Uveal melanoma (UM) is a highly vascularised tumour generally treated with radiotherapy (RT). A recent preclinical study from our group [1] demonstrated that RT-associated anti-angiogenic therapy has more than additive effects on cell growth, by modulating vascular endothelial growth factor (VEGF) levels. The pro-angiogenic interleukin-8 (IL-8) is highly expressed in both tumour and endothelial cells and is associated with resistance to VEGF-targeted therapies in various tumour types. The aim of this study is to investigate IL-8 release in response to the anti-angiogenic drug bevacizumab (AV) and RT given alone and in combination. Material and methods The human ocular melanoma cells (OCM-1) and human umbilical vein endothelial cells (HUVEC) were grown in transwell plates. AV was administered at a 2,500 µg/ml dose and cells were irradiated with a 6 Gy dose. IL-8 concentrations were determined by ELISA assay. Protein expression was detected by western blot. Results AV alone or in combination with RT reduces VEGF levels in both cell lines when co-cultured; unexpectedly, RT alone did not increase VEGF levels. In transwell plate AV alone lowered IL-8 secretion in both cell lines. This inhibitory effect was reduced when co-cultured cells are treated with AV + RT, suggesting that RT-induced VEGF may reactivate IL-8 secretion, enhancing an alternative pathway to sustain tumour angiogenesis. Conclusions These data indicate that the UM microenvironment, beside VEGF, can activate IL-8 signalling as an alternative pro-angiogenic pathway.


Subject(s)
Angiogenesis Inhibitors/pharmacology , Antibodies, Monoclonal, Humanized/pharmacology , Interleukin-8/metabolism , Melanoma/metabolism , Neovascularization, Pathologic/metabolism , Uveal Neoplasms/metabolism , Bevacizumab , Cell Line, Tumor , Cells, Cultured , Coculture Techniques , Combined Modality Therapy , Human Umbilical Vein Endothelial Cells/drug effects , Human Umbilical Vein Endothelial Cells/metabolism , Humans , Melanoma/drug therapy , Melanoma/pathology , Melanoma/radiotherapy , Neovascularization, Pathologic/drug therapy , Neovascularization, Pathologic/radiotherapy , Receptors, Interleukin-8B/metabolism , Uveal Neoplasms/drug therapy , Uveal Neoplasms/pathology , Uveal Neoplasms/radiotherapy , Vascular Endothelial Growth Factor A/metabolism
15.
Invest New Drugs ; 31(1): 59-65, 2013 Feb.
Article in English | MEDLINE | ID: mdl-22714791

ABSTRACT

BACKGROUND: Radiotherapy (RT) is the standard treatment for uveal melanoma. However it can cause damage to the retina and optic nerve. This study examined the in vitro and in vivo effects of the anti-VEGF monoclonal antibody bevacizumab associated with radiotherapy (RT) on tumor growth and tumor proliferation and vasculature on OCM-1 human uveal melanoma cell line. METHODS: The anti-proliferative effects of bevacizumab, RT and their combination were tested both in vitro (OCM-1 cells co-cultured with HUVEC cells in Transwell plates) and in vivo (OCM-1 tumor xenografts in nude mice). In addition, treatment effects in vitro on VEGF secretion, as well as treatment effects in vivo on tumor proliferation (Ki67 labelling), tumor vasculature (VEGFR2 labelling) and VEGF tumoral concentration were analyzed. RESULTS: Bevacizumab given alone had a significant impact on tumor growth in vivo (and moderate effects in vitro). The bevacizumab-RT combination had additive effects in vitro (tumor cell proliferation) and in vivo (tumor growth), which translated into a significant decrease in Ki67 expression, VEGFR2 labelling and VEGF tumoral content. CONCLUSIONS: The bevacizumab-RT combination could be a promising clinical option to explore for the management of human uveal melanoma, since it may allow RT dose reduction without loss of antitumor efficacy.


Subject(s)
Angiogenesis Inhibitors/administration & dosage , Antibodies, Monoclonal, Humanized/administration & dosage , Melanoma/drug therapy , Melanoma/radiotherapy , Uveal Neoplasms/drug therapy , Uveal Neoplasms/radiotherapy , Animals , Bevacizumab , Cell Line, Tumor , Cell Proliferation/drug effects , Combined Modality Therapy , Female , Human Umbilical Vein Endothelial Cells , Humans , Melanoma/pathology , Mice , Mice, Nude , Tumor Burden/drug effects , Uveal Neoplasms/pathology , Vascular Endothelial Growth Factor A/metabolism , Xenograft Model Antitumor Assays
16.
Oncology ; 85(5): 257-61, 2013.
Article in English | MEDLINE | ID: mdl-24192693

ABSTRACT

It is well known that the cetuximab (Cet) epidermal growth factor receptor (EGFR) antibody enhances the sensitivity of tumour cells to radiation, and it is likely that the concurrent administration of Cet and radiotherapy (RT) results in some degree of interplay between the effects of the individual agents on the skin and in the exacerbation of reactions normally seen with these individual agents. In this paper, we present a concise review of Cet/RT-related skin toxicity, focusing on mechanisms and pathogenesis, clinical presentation and scoring systems and, finally, therapeutic management.


Subject(s)
Antibodies, Monoclonal, Humanized/adverse effects , Antineoplastic Agents/adverse effects , Head and Neck Neoplasms/drug therapy , Head and Neck Neoplasms/radiotherapy , Radiation-Sensitizing Agents/adverse effects , Radiotherapy, Adjuvant/adverse effects , Skin/pathology , Skin/radiation effects , Antibodies, Monoclonal, Humanized/administration & dosage , Antineoplastic Agents/administration & dosage , Cetuximab , Disease Management , ErbB Receptors/antagonists & inhibitors , Humans , Necrosis/etiology , Radiation-Sensitizing Agents/administration & dosage , Severity of Illness Index , Skin/drug effects
17.
Curr Treat Options Oncol ; 14(4): 492-504, 2013 Dec.
Article in English | MEDLINE | ID: mdl-24065559

ABSTRACT

OPINION STATEMENT: Treatment of unresectable, locally advanced head and neck cancer consists of many different options, all of them based on radiotherapy. The main variable is represented by chemotherapy, i.e., the way in which chemotherapy is combined with radiation. More recently, the combination of cetuximab and radiotherapy emerged as a new treatment opportunity and induction chemotherapy, with the combination of docetaxel, cisplatin, and 5-fluoruracil, gained a renewed interest. Concurrent chemoradiation is based on the most robust evidence and is regarded as the leading standard of care for unresectable locally advanced head and neck cancer. Unfortunately, chemoradiation is hampered by severe toxicity and patients must be selected carefully before treatment. The experience of the staff (medical oncologists, radiation oncologists, and nurses), and in particular its familiarity with toxicity management, as well the structural facilities, play an important role in the final outcome. When the patient is unfit for chemoradiation, or when experienced staff or adequate structures are unavailable, induction chemotherapy, cetuximab and radiotherapy, or radiotherapy alone are all evidence-based alternative options. The choice among them will be based on the clinical condition of the patient, the physician's experience, and the patient's preference. Whatever is the treatment of choice, it is important to involve a multidisciplinary staff in the management of these patients. Indeed, also unresectable patients may require supportive surgical interventions before or during treatment, or removal of residual disease after treatment.


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Carcinoma, Squamous Cell/therapy , Head and Neck Neoplasms/therapy , Induction Chemotherapy , Radiotherapy, Intensity-Modulated , Carcinoma, Squamous Cell/complications , Carcinoma, Squamous Cell/mortality , Carcinoma, Squamous Cell/pathology , Cisplatin/administration & dosage , Cisplatin/adverse effects , Combined Modality Therapy , Deglutition Disorders/etiology , Docetaxel , Female , Fluorouracil/administration & dosage , Fluorouracil/adverse effects , Head and Neck Neoplasms/complications , Head and Neck Neoplasms/mortality , Head and Neck Neoplasms/pathology , Humans , Induction Chemotherapy/adverse effects , Male , Patient Care Team , Patient Selection , Practice Patterns, Physicians' , Radiotherapy, Intensity-Modulated/methods , Speech Disorders/etiology , Survival Analysis , Taxoids/administration & dosage , Taxoids/adverse effects , Treatment Outcome
18.
J Appl Clin Med Phys ; 14(6): 4420, 2013 Nov 04.
Article in English | MEDLINE | ID: mdl-24257285

ABSTRACT

When using an electronic portal imaging device (EPID) for dosimetric verifications, the calibration of the sensitive area is of paramount importance. Two calibration methods are generally adopted: one, empirical, based on an external reference dosimeter or on multiple narrow beam irradiations, and one based on the EPID response simulation. In this paper we present an alternative approach based on an intercalibration procedure, independent from external dosimeters and from simulations, and is quick and easy to perform. Each element of a detector matrix is characterized by a different gain; the aim of the calibration procedure is to relate the gain of each element to a reference one. The method that we used to compute the relative gains is based on recursive acquisitions with the EPID placed in different positions, assuming a constant fluence of the beam for subsequent deliveries. By applying an established procedure and analysis algorithm, the EPID calibration was repeated in several working conditions. Data show that both the photons energy and the presence of a medium between the source and the detector affect the calibration coefficients less than 1%. The calibration coefficients were then applied to the acquired images, comparing the EPID dose images with films. Measurements were performed with open field, placing the film at the level of the EPID. The standard deviation of the distribution of the point-to-point difference is 0.6%. An approach of this type for the EPID calibration has many advantages with respect to the standard methods - it does not need an external dosimeter, it is not related to the irradiation techniques, and it is easy to implement in the clinical practice. Moreover, it can be applied in case of transit or nontransit dosimetry, solving the problem of the EPID calibration independently from the dose reconstruction method.


Subject(s)
Electronics, Medical , Image Processing, Computer-Assisted/statistics & numerical data , Radiometry/instrumentation , Radiotherapy Planning, Computer-Assisted/statistics & numerical data , Algorithms , Calibration , Humans , Phantoms, Imaging , Radiotherapy Dosage , Silicon
19.
Support Care Cancer ; 20(9): 2141-7, 2012 Sep.
Article in English | MEDLINE | ID: mdl-22081118

ABSTRACT

PURPOSE: To date, the specific role of "in-field" crusting exudation on pain and on activity of daily living (ADL) in head and neck cancer (HNSCC) patients undergoing treatment with cetuximab and radiochemotherapy has been neglected. The purpose of the study was to evaluate the role of crusting exudation on the severity of pain and ADL METHODS: Thirty-seven of the 45 HNSCC patients enrolled in the alternating radiotherapy, chemotherapy, and cetuximab trial were evaluated in this study. The main radiodermatitis signs (the intensity of erythema, the extension of dry, and moist desquamation and of necrosis)--including crusting exudation severity--pain, ADL, and radiodermatitis scores were registered at least weekly during and after treatment. The correlation between crusting exudation and pain or ADL was evaluated. RESULTS: The "in-field" crusting exudation score seemed to have the strongest correlation with pain (Spearman's rho = 0.897; p < 0.001) and the most intense influence on it (Co-B = 0.715; 95% C.I. = 0.643-0.787). However, it seemed to have a weaker correlation with ADL than the other clinical radiodermatitis signs. CONCLUSIONS: Crusts have the strongest correlation with pain in patients with Cetuximab-related radiation dermatitis. Moreover, the presence of crusts can lead operators to misclassify dermatitis as score 4, causing unnecessary delays or interruptions in treatment.


Subject(s)
Antibodies, Monoclonal/therapeutic use , Antineoplastic Agents/therapeutic use , Exudates and Transudates , Head and Neck Neoplasms/drug therapy , Head and Neck Neoplasms/radiotherapy , Pain/physiopathology , Radiodermatitis/physiopathology , Activities of Daily Living , Antibodies, Monoclonal, Humanized , Cetuximab , Humans , Pain/etiology , Radiodermatitis/pathology , Severity of Illness Index
20.
Radiother Oncol ; 177: 95-104, 2022 12.
Article in English | MEDLINE | ID: mdl-36336113

ABSTRACT

Evidence on the efficacy of postoperative radiotherapy (PORT) in low-intermediate risk squamous cell carcinoma of the oral cavity (OSCC) remains inconclusive. Members of a task force from two national radio-oncology Associations (AIRO and GORTEC) defined 14 clinically relevant questions to identify "gray areas" pertinent to the indication for PORT in this clinical setting. Consequently, a literature review was performed on the topic. The resulting statements were then rated by an Expert Panel (EP) using a modified Delphi method. Only radiation oncologists were part of the discussion and voting on the scenarios. There was agreement on the 14 statements at the first round of voting. The task force then decided to propose clinical cases for the two more controversial statements that had received a lower agreement to better capture the Experts' attitudes. The clinical cases highlighted a more significant decisional heterogeneity. However, the good level of consensus reached among the two Associations gives relevant support in informing clinical choices while acknowledging general indications cannot fit all clinical situations and do not replace multidisciplinary discussion.


Subject(s)
Carcinoma, Squamous Cell , Head and Neck Neoplasms , Mouth Neoplasms , Humans , Consensus , Mouth Neoplasms/radiotherapy , Mouth Neoplasms/surgery , Mouth Neoplasms/pathology , Squamous Cell Carcinoma of Head and Neck , Carcinoma, Squamous Cell/radiotherapy , Carcinoma, Squamous Cell/surgery , Delphi Technique
SELECTION OF CITATIONS
SEARCH DETAIL