Skin Metastases In Small-Cell Lung Cancer (SCLC). Frequency, Associations, response To Treatment And Prognosis

Author(s):  
Ioannis Dimitroulis ◽  
Kyriaki Tsikritsaki ◽  
Georgios Zarbis ◽  
Katerina Dimakou ◽  
Michalis Toumbis
2022 ◽  
Vol 11 ◽  
Author(s):  
Elena Corral de la Fuente ◽  
Maria Eugenia Olmedo Garcia ◽  
Ana Gomez Rueda ◽  
Yolanda Lage ◽  
Pilar Garrido

Kirsten Rat Sarcoma viral oncogene homolog (KRAS) is the most frequently altered oncogene in Non-Small Cell Lung Cancer (NSCLC). KRAS mutant tumors constitute a heterogeneous group of diseases, different from other oncogene-derived tumors in terms of biology and response to treatment, which hinders the development of effective drugs against KRAS. Therefore, for decades, despite enormous efforts invested in the development of drugs aimed at inhibiting KRAS or its signaling pathways, KRAS was considered to be undruggable. Recently, the discovery of a new pocket under the effector binding switch II region of KRAS G12C has allowed the development of direct KRAS inhibitors such as sotorasib, the first FDA-approved drug targeting KRAS G12C, or adagrasib, initiating a new exciting era. However, treatment with targeted KRAS G12C inhibitors also leads to resistance, and understanding the possible mechanisms of resistance and which drugs could be useful to overcome it is key. Among others, KRAS G12C (ON) tricomplex inhibitors and different combination therapy strategies are being analyzed in clinical trials. Another area of interest is the potential role of co-mutations in treatment selection, particularly immunotherapy. The best first-line strategy remains to be determined and, due to the heterogeneity of KRAS, is likely to be based on combination therapies.


2019 ◽  
Vol 11 ◽  
pp. 175883591985319 ◽  
Author(s):  
Athanasios Kotsakis ◽  
Galatea Kallergi ◽  
Despoina Aggouraki ◽  
Zaharoula Lyristi ◽  
Filippos Koinis ◽  
...  

Background: Since tumor cells may escape from immune surveillance through the programmed cell death 1 (PD-1)/programmed death ligand (PD-L)1 axis, this study was designed in order to evaluate whether there is a correlation between the levels of PD-1+ and PD-L1+-expressing immune cells (ICs) and circulating tumor cells (CTCs) in patients with non-small cell lung cancer (NSCLC). Patients and methods: Peripheral blood was obtained from 37 chemotherapy-naïve patients with metastatic NSCLC before treatment. PD-1 and PD-L1 expression was evaluated (1) on ICs with anti-tumor function (CD4+ and CD8+ T-cells, B-cells, monocytes/dendritic cells) using flow cytometry, (2) on CTCs by immunofluorescence and (3) on cells from tumor tissues by immunohistochemistry. The levels of PD-1+ and PD-L1+-expressing ICs were correlated with progression-free survival (PFS). Results: The presence of PD-1+ CD8+ cells, with reduced interferon (IFN)-γ expression, but not other ICs, were positively correlated with PD-L1+ CTCs ( p < 0.04). Increased percentages of PD-1+ CD8+ T-cells, were associated with a worse response to treatment ( p = 0.032) and shorter PFS ( p = 0.023) which, in multivariate analysis, was revealed as an independent predictor for decreased PFS [hazard ratio (HR): 4.1, p = 0.0007]. Conclusion: The results of the current study, for first time, provide evidence for a possible interaction between ICs and CTCs in NSCLC patients via the PD-1/PD-L1 axis and strongly support that the levels of PD-1+ CD8+ in these patients may be of clinical relevance.


1997 ◽  
Vol 14 (1) ◽  
pp. 35-38 ◽  
Author(s):  
Markku M. T. Virén ◽  
Antti T. Ojala ◽  
Vesa V. Kataja ◽  
Jorma J. Mattila ◽  
Pasi A. Koivisto ◽  
...  

PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0252537
Author(s):  
Konstantinos Rounis ◽  
Dimitrios Makrakis ◽  
Chara Papadaki ◽  
Alexia Monastirioti ◽  
Lambros Vamvakas ◽  
...  

Objective We prospectively recorded clinical and laboratory parameters from patients with metastatic non-small cell lung cancer (NSCLC) treated with 2nd line PD-1/PD-L1 inhibitors in order to address their effect on treatment outcomes. Materials and methods Clinicopathological information (age, performance status, smoking, body mass index, histology, organs with metastases), use and duration of proton pump inhibitors, steroids and antibiotics (ATB) and laboratory values [neutrophil/lymphocyte ratio, LDH, albumin] were prospectively collected. Steroid administration was defined as the use of > 10 mg prednisone equivalent for ≥ 10 days. Prolonged ATB administration was defined as ATB ≥ 14 days 30 days before or within the first 3 months of treatment. JADBio, a machine learning pipeline was applied for further multivariate analysis. Results Data from 66 pts with non-oncogenic driven metastatic NSCLC were analyzed; 15.2% experienced partial response (PR), 34.8% stable disease (SD) and 50% progressive disease (PD). Median overall survival (OS) was 6.77 months. ATB administration did not affect patient OS [HR = 1.35 (CI: 0.761–2.406, p = 0.304)], however, prolonged ATBs [HR = 2.95 (CI: 1.62–5.36, p = 0.0001)] and the presence of bone metastases [HR = 1.89 (CI: 1.02–3.51, p = 0.049)] independently predicted for shorter survival. Prolonged ATB administration, bone metastases, liver metastases and BMI < 25 kg/m2 were selected by JADbio as the important features that were associated with increased probability of developing disease progression as response to treatment. The resulting algorithm that was created was able to predict the probability of disease stabilization (PR or SD) in a single individual with an AUC = 0.806 [95% CI:0.714–0.889]. Conclusions Our results demonstrate an adverse effect of prolonged ATBs on response and survival and underscore their importance along with the presence of bone metastases, liver metastases and low BMI in the individual prediction of outcomes in patients treated with immunotherapy.


2004 ◽  
Vol 22 (14_suppl) ◽  
pp. 7343-7343
Author(s):  
A. Addeo ◽  
V. Dongiovanni ◽  
N. Birocco ◽  
D. Dongiovanni ◽  
C. Fissore ◽  
...  

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