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1.
World J Urol ; 39(3): 741-749, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32361873

RESUMO

PURPOSE: To describe the role of anti-angiogenic agents that have been used as a treatment approach for locally advanced or metastatic urothelial cancers and to propose future directions. METHODS: PubMed/MEDLINE was searched for articles related to VEGF inhibition and locally advanced or metastatic urothelial cancer. RESULTS: Angiogenesis is a fundamental process for urothelial cancer initiation and progression. First-line therapy for locally advanced or metastatic urothelial cancer includes cisplatin-based chemotherapy combinations; subsequent systemic therapy includes taxanes, nanoparticle albumin-bound (nab) paclitaxel, or pemetrexed. More recently, several anti-PD-L1 and anti-PD-1 antibodies have shown promising activity in the first-line and post-platinum setting; however, immunotherapy remains ineffective in most patients. FGFR inhibitor erdafitinib was recently approved in the third-line setting. Studies on bevacizumab, pazopanib and ramucirumab have shown improved response rates when added to chemotherapy in selected patients, but have not led to overall survival (OS) benefit in randomized controlled studies. CONCLUSION: Anti-angiogenic agents have shown promise in recent studies treating locally advanced or metastatic urothelial cancer. However, further work is needed to elucidate ideal treatment combinations in selected patient populations to maximize benefit, with the ultimate goal of being added to the FDA-approved treatment armamentarium for this disease.


Assuntos
Inibidores da Angiogênese/uso terapêutico , Carcinoma de Células de Transição/tratamento farmacológico , Neoplasias Urológicas/tratamento farmacológico , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores , Carcinoma de Células de Transição/patologia , Carcinoma de Células de Transição/secundário , Previsões , Humanos , Estadiamento de Neoplasias , Neoplasias Urológicas/patologia
2.
Support Care Cancer ; 29(8): 4285-4293, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33411046

RESUMO

BACKGROUND: Palliative care (PC) education for fellows in hematology/oncology (H/O) training programs is widely accepted, but no studies to date have assessed PC education practices and values among program leadership. METHODS: Program Directors and Associate Program Directors of active H/O fellowship programs in the U.S.A. were surveyed. RESULTS: Of 149 programs contacted, 84 completed the survey (56% response rate), of which 100% offered some form of PC education. The most frequently utilized methods of PC education were didactic lectures/conferences (93%), required PC rotations (68%), and simulation/role-playing (42%). Required PC rotations were ranked highest, and formal didactic seminars/conferences were ranked fifth in terms of perceived effectiveness. The majority felt either somewhat (60%) or extremely satisfied (30%) with the PC education at their program. Among specific PC domains, communication ranked highest, addressing spiritual distress ranked lowest, and care for the imminently dying ranked second lowest in importance and competency. Solid tumor oncologists reported more personal comfort with pain management (p = 0.042), non-pain symptom management (p = 0.014), ethical/legal issues (p = 0.029), reported their fellows were less competent in pain assessment/management (p = 0.006), and communication (p = 0.011), and were more satisfied with their program's PC education (p = 0.035) as compared with hematologists. CONCLUSIONS: Significant disparities exist between those modalities rated most effective for PC education and those currently in use. Clinical orientation of program leadership can affect both personal comfort with PC skills and estimations of PC curriculum effectiveness and fellows' competency. H/O fellowship programs would benefit from greater standardization and prioritization of active PC education modalities and content.


Assuntos
Educação de Pós-Graduação em Medicina/normas , Bolsas de Estudo/normas , Avaliação das Necessidades/normas , Cuidados Paliativos/métodos , Feminino , Humanos , Masculino , Estados Unidos
3.
Clin Adv Hematol Oncol ; 18(10): 640-646, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33201870

RESUMO

Anemia is a common diagnosis in patients with cancer that may affect both quality of life and survival. Anemia in this patient population is often multifactorial, caused by direct effects of the malignancy, products secondary to the malignancy, the effects of treatment, or other factors. Therefore, a systematic approach is required to determine the true cause or causes of anemia. An appropriate workup of anemia in patients with cancer can lead to treatment with the potential to reduce transfusion needs and improve quality of life. The clinical benefit of these interventions for specific patients must be weighed against possible risk.


Assuntos
Anemia , Eritropoetina/uso terapêutico , Neoplasias , Anemia/etiologia , Anemia/metabolismo , Anemia/terapia , Transfusão de Sangue , Humanos , Neoplasias/complicações , Neoplasias/metabolismo , Neoplasias/terapia
4.
EMBO Rep ; 14(5): 441-9, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23559066

RESUMO

The selective autophagy receptors Atg19 and Atg32 interact with two proteins of the core autophagic machinery: the scaffold protein Atg11 and the ubiquitin-like protein Atg8. We found that the Pichia pastoris pexophagy receptor, Atg30, also interacts with Atg8. Both Atg30 and Atg32 interactions are regulated by phosphorylation close to Atg8-interaction motifs. Extending this finding to Saccharomyces cerevisiae, we confirmed phosphoregulation for the mitophagy and pexophagy receptors, Atg32 and Atg36. Each Atg30 molecule must interact with both Atg8 and Atg11 for full functionality, and these interactions occur independently and not simultaneously, but rather in random order. We present a common model for the phosphoregulation of selective autophagy receptors.


Assuntos
Proteínas Associadas aos Microtúbulos/metabolismo , Processamento de Proteína Pós-Traducional , Proteínas de Saccharomyces cerevisiae/metabolismo , Saccharomyces cerevisiae/metabolismo , Proteínas de Transporte Vesicular/metabolismo , Sequência de Aminoácidos , Autofagia , Família da Proteína 8 Relacionada à Autofagia , Proteínas Relacionadas à Autofagia , Sítios de Ligação , Sequência Consenso , Técnicas de Inativação de Genes , Mitofagia , Dados de Sequência Molecular , Fosforilação , Pichia/genética , Ligação Proteica , Domínios e Motivos de Interação entre Proteínas , Mapeamento de Interação de Proteínas , Receptores de Superfície Celular/metabolismo , Receptores Citoplasmáticos e Nucleares/metabolismo , Homologia de Sequência de Aminoácidos
5.
J Opioid Manag ; 17(6): 481-488, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34904696

RESUMO

BACKGROUND: To provide Centers for Disease Control and Prevention (CDC) guideline-recommended practices for patients on long-term opioid therapy (LTOT) including individualized decisions about opioid dose reduction, we developed the Power Over Pain (POP) Clinic. OBJECTIVE: To describe frequency and reasons for opioid dose reduction and pre-post adherence to CDC guideline-recommended practices. DESIGN: Retrospective chart review with qualitative and pre-post analysis. PATIENTS AND SETTING: Patients at an urban internal medicine teaching practice-prescribed LTOT were seen at POP Clinic at least once. METHODS: Opioid dose reduction was defined by reduction in morphine-equivalent daily dose (MEDD) at 6 and 12 months after the first POP Clinic visit compared to baseline using paired t-tests. Among patients with a dose reduction, reasons documented in POP Clinic notes were qualitatively examined. Dichotomous measures of receiving four CDC guideline-recommended practices (controlled substance agreement [CSA], urine drug testing [UDT], prescription monitoring program review, and naloxone dispensing) at baseline versus 6 and 12 months were compared using McNemar's tests. RESULTS: Of the 70 patients, most were female (66 percent) and Hispanic (54 percent). Forty-three patients (61 percent) had an opioid dose reduction in 12 months after the first POP Clinic visit. The most frequent reason was low or unclear benefit of continuing the current dose (49 percent). Mean MEDD was reduced from 69 mg to 57 mg at 6 months (p < 0.01) and to 56 mg at 12 months (p < 0.01). Completing a CSA, UDT, and naloxone distribution increased at 6 and 12 months (p < 0.01). CONCLUSIONS: Individualized risk assessment in a primary care-based opioid management clinic is feasible and can result in opioid dose reduction and guideline adherence.


Assuntos
Analgésicos Opioides , Dor Crônica , Analgésicos Opioides/efeitos adversos , Dor Crônica/diagnóstico , Dor Crônica/tratamento farmacológico , Redução da Medicação , Feminino , Fidelidade a Diretrizes , Humanos , Atenção Primária à Saúde , Estudos Retrospectivos
6.
Clin Genitourin Cancer ; 19(3): 183-193, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33558159

RESUMO

Metastatic urothelial carcinoma (UC) carries a poor prognosis and a 5-year overall survival of less than 5%, despite standard of care therapy using cisplatin-based chemotherapy and immune checkpoint inhibitors. Thus, novel agents that improve survival and have an acceptable toxicity profile are urgently needed. Antibody-drug conjugates (ADCs) represent a promising new treatment option that utilizes the targeting ability of an antibody to deliver cytotoxic drugs directly to tumors. Many ADCs are currently being investigated for treatment of UC, with enfortumab vedotin being recently approved by the US Food and Drug Administration for treatment of metastatic UC with progressive disease after chemotherapy and/or immune checkpoint inhibitors. Overall, ADCs hold promise as a long-awaited treatment option for UC.


Assuntos
Antineoplásicos , Carcinoma de Células de Transição , Imunoconjugados , Neoplasias da Bexiga Urinária , Antineoplásicos/uso terapêutico , Carcinoma de Células de Transição/tratamento farmacológico , Cisplatino/uso terapêutico , Humanos , Imunoconjugados/uso terapêutico , Neoplasias da Bexiga Urinária/tratamento farmacológico
7.
Leuk Res ; 90: 106314, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-32035355

RESUMO

Venetoclax (VEN) is a selective BCL-2 inhibitor that has been shown to be effective when used in combination with hypomethylating agents (HMAs) or low-dose cytarabine (LDAC) for treatment-naïve, elderly acute myeloid leukemia (AML) patients unfit for intensive chemotherapy. Data on its use in the relapsed/refractory setting are limited. A retrospective analysis was performed among 14 patients with relapsed or refractory AML treated with VEN combination therapy at the University of California Los Angeles from 2018-2019. Eight patients received VEN in combination with azacitidine, 5 patients with decitabine, and 1 patient with LDAC. The majority (10 patients, 71.4%) had adverse cytogenetics. Three patients (21.4%) had undergone an allogeneic stem cell transplant prior to VEN therapy, and 5 patients (35.7%) had leukemia that failed HMA therapy prior. The objective response rate (ORR) was 35.7% (3 patients achieved complete remission with incomplete hematologic recovery and 2 patients achieved partial remission). Three patients (21.4%) were successfully transitioned to either allogeneic bone marrow transplant (2 patients) or donor lymphocyte infusion (1 patient). Seven patients (50.0%) developed a grade 3 or greater infection following VEN therapy, and 3 patients (21.4%) developed a grade 3 or greater intracranial hemorrhage. Three patients experienced early death within 30 days of therapy (2 from infection, 1 from bleeding). The median overall survival (OS) was 4.7 months, and the 1-year OS rate was 23.6% (95% CI 4.4-51.2) for the entire patient cohort. Overall, the response rate was not inferior to that with conventional salvage chemotherapy, but there were notable complications as a result of prolonged cytopenias.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Leucemia Mieloide Aguda/tratamento farmacológico , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Compostos Bicíclicos Heterocíclicos com Pontes/administração & dosagem , Resistencia a Medicamentos Antineoplásicos , Feminino , Humanos , Leucemia Mieloide Aguda/diagnóstico , Leucemia Mieloide Aguda/mortalidade , Masculino , Pessoa de Meia-Idade , Prognóstico , Recidiva , Retratamento , Sulfonamidas/administração & dosagem , Resultado do Tratamento
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