RESUMEN
The clinical efficacy of local ablative treatment for oligometastasis is widely accepted in most cancers. However, due to limited data, this has not been the case for hepatocellular carcinoma (HCC). Here, we report a case of pulmonary oligometastasis of a huge HCC that was treated by multimodality with liver-directed concurrent chemoradiotherapy (CCRT) plus subsequent resection of the primary lesion and local ablative radiotherapy (RT) for subsequent lung oligometastatic lesions. In this patient, liver-directed CCRT induced significant tumor shrinkage with compensatory hypertrophy of the non-tumor liver, followed by curative resection. Surgical resection of the first and second pulmonary metastatic lesions as well as local ablative RT of the third lesion achieved complete tumor regression, which led to long-term survival of 6 years. Therefore, the active use of local ablative RT requires full consideration in cases of oligometastatic HCC.
RESUMEN
The clinical efficacy of local ablative treatment for oligometastasis is widely accepted in most cancers. However, due to limited data, this has not been the case for hepatocellular carcinoma (HCC). Here, we report a case of pulmonary oligometastasis of a huge HCC that was treated by multimodality with liver-directed concurrent chemoradiotherapy (CCRT) plus subsequent resection of the primary lesion and local ablative radiotherapy (RT) for subsequent lung oligometastatic lesions. In this patient, liver-directed CCRT induced significant tumor shrinkage with compensatory hypertrophy of the non-tumor liver, followed by curative resection. Surgical resection of the first and second pulmonary metastatic lesions as well as local ablative RT of the third lesion achieved complete tumor regression, which led to long-term survival of 6 years. Therefore, the active use of local ablative RT requires full consideration in cases of oligometastatic HCC.
RESUMEN
PURPOSE: IBTR! 2.0 nomogram is web-based nomogram that predicts ipsilateral breast tumor recurrence (IBTR). We aimed to validate the IBTR! 2.0 using an external data set. MATERIALS AND METHODS: The cohort consisted of 2,206 patients, who received breast conserving surgery and radiation therapy from 1992 to 2012 at our institution, where wide surgical excision is been routinely performed. Discrimination and calibration were used for assessing model performance. Patients with predicted 10-year IBTR risk based on an IBTR! 2.0 nomogram score of 10% were assigned to groups 1, 2, 3, and 4, respectively. We also plotted calibration values to observe the actual IBTR rate against the nomogram-derived 10-year IBTR probabilities. RESULTS: The median follow-up period was 73 months (range, 6 to 277 months). The area under the receiver operating characteristic curve was 0.607, showing poor accordance between the estimated and observed recurrence rate. Calibration plot confirmed that the IBTR! 2.0 nomogram predicted the 10-year IBTR risk higher than the observed IBTR rates in all groups. High discrepancies between nomogram IBTR predictions and observed IBTR rates were observed in overall risk groups. Compared with the original development dataset, our patients had fewer high grade tumors, less margin positivity, and less lymphovascular invasion, and more use of modern systemic therapies. CONCLUSIONS: IBTR! 2.0 nomogram seems to have the moderate discriminative ability with a tendency to over-estimating risk rate. Continued efforts are needed to ensure external applicability of published nomograms by validating the program using an external patient population.
Asunto(s)
Humanos , Neoplasias de la Mama , Mama , Calibración , Estudios de Cohortes , Conjunto de Datos , Discriminación en Psicología , Estudios de Seguimiento , Mastectomía Segmentaria , Nomogramas , Radioterapia , Recurrencia , Curva ROCRESUMEN
BACKGROUND/AIMS: We investigated whether inflammatory markers such as neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR) independently and in combination would be significant prognostic factors for survival in patients with locally advanced pancreatic cancer. METHODS: A total of 497 patients with locally advanced pancreatic cancer who received neoadjuvant or definitive chemoradiotherapy from 2005 to 2015 were evaluated. We divided the patients into groups according to the median values of NLR and PLR: NLR < 1.89 (n=156), NLR≥1.89 (n=341), PLR < 149 (n=248) and PLR≥149 (n=249). RESULTS: For NLR < 1.89 and ≥1.89 groups, respectively, the 1-year overall survival (OS) rates were 73.2% and 60.8% (p < 0.001) and 1-year progression-free survival (PFS) rates were 43.9% and 31.3% (p < 0.001). For PLR < 149 and ≥149 groups, respectively, the 1-year OS rates were 68.1% and 61.3% (p=0.029) and 1-year PFS rates were 37.9% and 32.5% (p=0.027). Patients with both high NLR and high PLR showed the worst OS and PFS rates compared with those with both lower NLR and lower PLR. CONCLUSIONS: Elevated pretreatment NLR and PLR independently and in combination significantly predicted poor OS and PFS.
Asunto(s)
Humanos , Quimioradioterapia , Supervivencia sin Enfermedad , Recuento de Linfocitos , Neutrófilos , Neoplasias Pancreáticas , Recuento de Plaquetas , PronósticoRESUMEN
PURPOSE: Pulmonary toxicities, including infectious pneumonia (IP) and idiopathic pneumonia syndrome (IPS), are serious side effects of total body irradiation (TBI) used for myeloablative conditioning. This study aimed to evaluate clinical factors associated with IP and IPS following TBI. MATERIALS AND METHODS: Fifty-eight patients with hematologic malignancies who underwent TBI before allogeneic hematopoietic stem cell transplantation between 2005 and 2014 were reviewed. Most patients (91%) received 12 Gy in 1.5 Gy fractions twice a day. Pulmonary toxicities were diagnosed based on either radiographic evidence or reduced pulmonary function, and were subdivided into IP and IPS based on the presence or absence of concurrent infection. RESULTS: Pulmonary toxicities developed in 36 patients (62%); 16 (28%) had IP and 20 (34%) had IPS. IP was significantly associated with increased treatment-related mortality (p = 0.028) and decreased survival (p = 0.039). Multivariate analysis revealed that the risk of developing IPS was significantly higher in patients who received stem cells from a matched unrelated donor than from a matched sibling donor (p = 0.021; hazard ratio [HR] = 12.67; 95% confidence interval [CI], 1.46–110.30). Combining other conditioning agents with cyclophosphamide produced a higher tendency to develop IP (p = 0.064; HR = 6.19; 95% CI, 0.90–42.56). CONCLUSION: IP and IPS involve different risk factors and distinct pathogeneses that should be considered when planning treatments before and after TBI.
Asunto(s)
Humanos , Ciclofosfamida , Neoplasias Hematológicas , Trasplante de Células Madre Hematopoyéticas , Mortalidad , Análisis Multivariante , Neumonía , Factores de Riesgo , Hermanos , Trasplante de Células Madre , Células Madre , Donantes de Tejidos , Donante no Emparentado , Irradiación Corporal TotalRESUMEN
PURPOSE: Pulmonary toxicities, including infectious pneumonia (IP) and idiopathic pneumonia syndrome (IPS), are serious side effects of total body irradiation (TBI) used for myeloablative conditioning. This study aimed to evaluate clinical factors associated with IP and IPS following TBI. MATERIALS AND METHODS: Fifty-eight patients with hematologic malignancies who underwent TBI before allogeneic hematopoietic stem cell transplantation between 2005 and 2014 were reviewed. Most patients (91%) received 12 Gy in 1.5 Gy fractions twice a day. Pulmonary toxicities were diagnosed based on either radiographic evidence or reduced pulmonary function, and were subdivided into IP and IPS based on the presence or absence of concurrent infection. RESULTS: Pulmonary toxicities developed in 36 patients (62%); 16 (28%) had IP and 20 (34%) had IPS. IP was significantly associated with increased treatment-related mortality (p = 0.028) and decreased survival (p = 0.039). Multivariate analysis revealed that the risk of developing IPS was significantly higher in patients who received stem cells from a matched unrelated donor than from a matched sibling donor (p = 0.021; hazard ratio [HR] = 12.67; 95% confidence interval [CI], 1.46–110.30). Combining other conditioning agents with cyclophosphamide produced a higher tendency to develop IP (p = 0.064; HR = 6.19; 95% CI, 0.90–42.56). CONCLUSION: IP and IPS involve different risk factors and distinct pathogeneses that should be considered when planning treatments before and after TBI.
Asunto(s)
Humanos , Ciclofosfamida , Neoplasias Hematológicas , Trasplante de Células Madre Hematopoyéticas , Mortalidad , Análisis Multivariante , Neumonía , Factores de Riesgo , Hermanos , Trasplante de Células Madre , Células Madre , Donantes de Tejidos , Donante no Emparentado , Irradiación Corporal TotalRESUMEN
OBJECTIVE: Embryonic stem cells (ES cells) are pluripotential, and are therefore used to construct gene knock-out mice and to study cell differentiation and early developmental processes in mice. This study was designated to examine apoptotic processes in ES cells according to culture conditions and to study roles of extracellular matrix on the process. METHODS: Apoptosis was determined by DNA fragmentation and kinase activity during apoptotic process was measured. RESULTS: The apoptosis of mouse ES cells was induced when the cells were dispersed as single cells, whereas this process was suppressed when they proliferated in aggregates. Single cell suspension culture did not affect expression of bcl-2 and bax mRNA. Single cell suspension culture activated stress-activated protein kinase/c-jun-N-terminal kinase (SAPK/JNK), but not p38 kinase. The apoptosis of ES cells was repressed when the cells were cultured on feeders prepared from mouse embryonic fibroblasts (MEF), or on the petri dishes coated with fibronectin or laminin, but not with collagen or poly-L-lysine. Culture supernatants from MEF cells did not block the apoptosis of ES cells, which suggests that a direct interaction between ES cells and MEF cells is required for the suppression of apoptosis. Activation of SAPK/JNK by single cell suspension was protected by interaction of cells with laminin or fibronectin, but not with collagen or poly-L-lysine. CONCLUSION: The suspension of ES cells as single cells causes serious damage and induces apoptosis, and the apoptotic process is mediated by the activation of SAPK/JNK and is inhibited by the interaction of ES cells with extracellular matrix.