scholarly journals A different pattern of cytotoxic T lymphocyte recognition against primary and metastatic tumor cells in a patient with nonsmall cell lung carcinoma

Cancer ◽  
2004 ◽  
Vol 103 (1) ◽  
pp. 200-208 ◽  
Author(s):  
Tetsuya So ◽  
Mitsuhiro Takenoyama ◽  
Yoshinobu Ichiki ◽  
Makiko Mizukami ◽  
Tomoko So ◽  
...  
2018 ◽  
Vol 2018 ◽  
pp. 1-4 ◽  
Author(s):  
Shingo Nakayama ◽  
Mamoru Sasaki ◽  
Shojiroh Morinaga ◽  
Naoto Minematsu

Giant cell carcinoma, a rare variant of nonsmall cell lung carcinoma (NSCLC), is characterized by aggressive progression and poor response to conventional chemotherapy. This report is the first to describe a patient with NSCLC and giant cell features who was successfully treated with pembrolizumab, an antibody targeting programmed death-1 (PD-1). A 69-year-old woman was diagnosed with NSCLC with multiple brain metastases. Histological evaluation of lung biopsy specimens revealed proliferation of pleomorphic giant tumor cells with poor cohesiveness, findings consistent with giant cell carcinoma. Immunostaining showed that a high proportion of the tumor cells were positive for expression of programmed death-ligand 1 (PD-L1). The patient received stereotactic radiotherapy for the brain metastases, followed by administration of pembrolizumab. Treatment with pembrolizumab resulted in the rapid regression of the primary lung nodule, with the progression-free period maintained for at least four treatment cycles. Immunotherapy targeting PD-1/PD-L1 may be an option for patients with PD-L1-positive NSCLC with giant cell features.


Cancer ◽  
2001 ◽  
Vol 91 (12) ◽  
pp. 2394-2400 ◽  
Author(s):  
F. Andre ◽  
D. Grunenwald ◽  
J. L. Pujol ◽  
P. Girard ◽  
A. Dujon ◽  
...  

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Sachiko Kaji ◽  
Nobuyuki Hiruta ◽  
Daisuke Sasai ◽  
Makoto Nagashima ◽  
Rintaro Ohe ◽  
...  

Abstract Background Cytokeratin-positive interstitial reticulum cells (CIRCs), which are a subgroup of fibroblastic reticular cells (FRCs), are known to be present in the lymph nodes. There have been only a few cases of tumors derived from CIRCs. Case presentation We have reported a new case involving a CIRC tumor in a 75-year-old man and reviewed the literature. The resected mediastinal lymph nodes showed epithelial-like proliferation of large atypical round and polygonal epithelioid cells. The tumor cells expressed CK8, CK18, CAM5.2, AE1/AE3, epithelial membrane antigen, vimentin, fascin, and some FRC markers, which is consistent with the diagnosis of a CIRC tumor. Following chemotherapy, the CIRC tumor was observed to have responded very well and became difficult to confirm on imaging, but a small cell lung carcinoma developed 12 months later. Chemoradiotherapy was performed, but the patient passed away 29 months after the initial diagnosis. The autopsy revealed the recurrence of the CIRC tumor, residual small cell lung carcinoma, and a very small latent carcinoma of the prostate. The relapsed CIRC tumor cells had a spindle shape; they were highly pleomorphic and had invaded the superior vena cava. Conclusion We first reported autopsy findings of CIRC tumors and demonstrated the transformation of the tumor from the epithelioid cell type to the spindle cell type.


Cancer ◽  
1999 ◽  
Vol 85 (2) ◽  
pp. 333-340 ◽  
Author(s):  
James E. Herndon ◽  
Stewart Fleishman ◽  
Alice B. Kornblith ◽  
Michael Kosty ◽  
Mark R. Green ◽  
...  

2009 ◽  
Vol 102 (10) ◽  
pp. 1019-1022 ◽  
Author(s):  
Sibel Arinc ◽  
Ferah Ece ◽  
Muyesser Ertugrul ◽  
Nuray Erdal ◽  
Ozlem Oruc ◽  
...  

1981 ◽  
Author(s):  
G A Jamieson ◽  
Eva Bastida ◽  
Antonio Ordinas

Aggregation mechanisms have been examined in a homologous system using heparinized human platelet-rich plasma with cell lines derived from human tumors. The A549 (epithelial lung carcinoma) and Hut23 (adenocarcinoma) did not aggregate platelets at 107 cells/ml. Other cell lines could not be classified by aggregation pattern alone since all gave biphasic or quasibiphasic patterns. HT 29 (adenocarcinoma) , SKBR3 (adenocarcinoma), HT 144 (melanoma) and Hut 20 (large cell lung carcinoma) were inhibited by apyrase and phospholipase D but not by hirudin: aggregation induced by this group is probably primarily dependent on ADP. Aggregation by SKNMC (mesothelioma) and Hut 28 (mesothelioma) was inhibited by hirudin and phospholipase D but not by apyrase. Aggregation by this second group probably involves activation of the clotting system in the early stages but can be differentiated from a similar mechanism with U87MG since thq latter is not inhibited by phospholipase D. Phospholipase C had no effect on any cell line and phospholipase A2 inhibited all cell lines, as did its hydrolytic product, lysolecthin. Platelet aggregating material (PAM) could not be isolated by urea extraction of any of these human tumor cells. These results suggest that various inhibitors are necessary to allow classification of mechanisms of tumor cell-induced platelet aggregation.


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