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1.
JTO Clin Res Rep ; 5(2): 100631, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38322711

RESUMO

Osimertinib administration has been approved as an adjuvant treatment after complete surgical resection in patients with EGFR-mutated NSCLC. This article presents the first report of life-threatening postoperative osimertinib-induced interstitial lung disease. An 83-year-old male patient underwent right upper lobectomy (pathologic stage IIA) and osimertinib (80 mg/d) was initiated on postoperative day 75. On day 44 of osimertinib administration, chest computed tomography revealed diffuse ground-glass opacities; accordingly, osimertinib-induced interstitial lung disease was diagnosed. Steroid pulse therapy was initiated using a high-flow nasal cannula to treat dyspnea and hypoxemia, rapidly improving the respiratory status and imaging findings; moreover, the patient's clinical course was excellent. This case report suggests that the postoperative occurrence of severe osimertinib-induced interstitial lung disease is a crucial factor that must be considered in patient decision-making regarding perioperative treatment.

2.
Oncol Lett ; 26(6): 520, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37927418

RESUMO

Gefitinib is a key drug used in the treatment of non-small cell lung cancer (NSCLC) with EGFR mutations. Gefitinib therapy is superior to conventional chemotherapy for the progression-free survival rate of patients with EGFR mutations. However, 10-26% of patients develop grade 3 or higher hepatotoxicity during gefitinib treatment; therefore, the development of preclinical tests for hepatotoxicity prior to clinical use is desirable. The present study evaluated the use of induced pluripotent stem cells (iPSCs) and iPSC-derived hepatocytes (iPSC-heps), as a platform for preclinical test development. Patient-derived iPSCs were generated by reprogramming peripheral blood mononuclear cells obtained from two groups of gefitinib-treated patients with severe hepatotoxicity [toxicity group (T group)] or mild hepatotoxicity [no clinical toxicity group (N group)]. To examine the hepatotoxicity, the iPSCs from both T and N groups were differentiated into hepatocytes to obtain iPSC-heps. Differentiation was confirmed by measuring the expression levels of hepatocyte markers, such as albumin or α-fetoprotein, via western blotting and quantitative PCR analyses. Cytotoxicity in iPSCs and iPSC-heps after gefitinib treatment was evaluated using a lactate dehydrogenase release assay. The gefitinib-induced cytotoxicity in iPSCs from the T group was significantly higher than that from the N group, whereas there were no significant differences between the groups of iPSC-heps. These results suggested that using iPSCs in preclinical assessment may be a good indicator for the prediction of gefitinib-induced cytotoxicity in clinical use.

3.
Anticancer Res ; 41(10): 5137-5145, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34593465

RESUMO

BACKGROUND: For epidermal growth factor receptor (EGFR)-mutated non-small cell lung cancer (NSCLC), administration of EGFR tyrosine kinase inhibitors (TKIs) is mandatory to prolong survival. To date, a comparison of second- and third-generation EGFR-TKIs has not been reported as far as we are aware. PATIENTS AND METHODS: We retrospectively investigated the survival time of patients diagnosed with EGFR-mutated advanced or recurrent NSCLC who had received afatinib, a second-generation EGFR-TKI, or osimertinib, a third-generation EGFR-TKI, as the first-line treatment. RESULTS: Among the 49 patients included in the study, 15 received afatinib and 34 received osimertinib. No significant differences in overall survival were observed between the two groups [afatinib vs. osimertinib=36 vs. 33 months (hazard ratio=2.917, 95% confidence interval=0.780-10.905; p=0.112)]. T790M mutation was detected in three of the patients in the afatinib group, and all three subsequently received osimertinib. The median overall survival of these three patients and of the 12 without the mutation were 63 and 36 months, respectively. CONCLUSION: There was no apparent difference in the effect on survival between second- and third-generation EGFR-TKIs, whereas the sequential administration of second- followed by third-generation EGFR-TKIs appeared to confer a better long-term prognosis.


Assuntos
Acrilamidas/uso terapêutico , Afatinib/uso terapêutico , Compostos de Anilina/uso terapêutico , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Neoplasias Pulmonares/tratamento farmacológico , Inibidores de Proteínas Quinases/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Pulmonar de Células não Pequenas/genética , Carcinoma Pulmonar de Células não Pequenas/patologia , Receptores ErbB/antagonistas & inibidores , Receptores ErbB/genética , Feminino , Seguimentos , Humanos , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Mutação , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida
4.
Int J Cardiol ; 313: 67-75, 2020 08 15.
Artigo em Inglês | MEDLINE | ID: mdl-32402518

RESUMO

BACKGROUND: Although immune checkpoint inhibitors (ICIs) have made an immense breakthrough in cancer therapeutics, they can exert unique, immune-related adverse events. Among them, myocarditis is less frequent, but it is serious and often follows a lethal course. METHODS: To examine the changes in cardiac autoimmunity after ICI administration, we developed a mouse experimental autoimmune myocarditis (EAM) model via intraperitoneal administration of murine α-cardiac myosin heavy chain (MyHC-α) fragment. Thereafter, the mouse anti-PD-1 antibody (mPD1ab) was administered at two time points, subsequent to and concurrent with MyHC-α fragment administration. RESULTS: Severe EAM developed in 3 weeks; wide inflammatory lesions were observed in the cardiac sections. Furthermore, inflammatory/fibrotic genes, such as interleukin 1ß, interleukin 6, and collagen 1, were upregulated, although the cardiac function was not significantly affected. The subsequent administration of mPD1ab at 2 weeks post administration of the first MyHC-α fragment exacerbated EAM, whereas the administration of mPD1ab concurrent with MyHC-α fragment administration did not exacerbate EAM. The subsequent administration of mPD1ab significantly increased the infiltration of cluster of differentiation (CD)4- and F4/80-positive cells, whereas the concurrent administration of mPD1ab significantly decreased the infiltration of CD4-positive cells, indicating that the concurrent and subsequent administration of mPD1ab had opposite effects on immune/inflammatory cell infiltration. CONCLUSIONS: These data suggest that the appearance of ICI-induced autoimmune myocarditis might be related to autoimmune system activity before ICI administration. Although ICIs do not adversely affect patients with normal immune systems, we propose that ICI administration should be avoided in patients with autoimmune disorders.


Assuntos
Doenças Autoimunes , Miocardite , Animais , Doenças Autoimunes/induzido quimicamente , Doenças Autoimunes/tratamento farmacológico , Autoimunidade , Miosinas Cardíacas , Modelos Animais de Doenças , Humanos , Inibidores de Checkpoint Imunológico , Camundongos , Camundongos Endogâmicos BALB C , Miocardite/induzido quimicamente , Miocardite/tratamento farmacológico
5.
Case Rep Oncol ; 8(1): 153-8, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25873883

RESUMO

We report a rare case of large cell neuroendocrine carcinoma (LCNEC) of the lung with cancer-associated retinopathy (CAR). To our knowledge, only two cases of LCNEC with CAR have been reported, one in 1995 and another in 2013. CAR, typically associated with small cell lung cancer (SCLC), is one of the paraneoplastic syndromes with deterioration of visual acuity, visual field constriction, and photophobia. CAR is caused by an autoimmune system reaction against the same antigen in the tumor and retinal photoreceptor cells. To diagnose CAR, genetic retinal dystrophies or any other medical causes of retinopathy should be excluded, but there are no standard diagnostic criteria. Anti-retinal antibodies are known to be positive in CAR patients, and anti-recoverin antibodies are thought to be sensitive and specific to CAR. In our case, anti-recoverin antibodies were not detected by serum tests, but CAR could be diagnosed on the basis of ophthalmological findings including clinical symptoms, electroretinographic findings, and visual field tests. CAR with clinical features of rapid visual disorder should be considered in LCNEC patients as well as in SCLC patients.

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