To determine if amplification of the C-erb-B2 proto-oncogene could be correlated with prognosis in carcinoid tumours, 49 pulmonary carcinoid tumours (26 typical, 23 atypical) were examined using a polyclonal antibody to the C-terminal peptide of the C-erb-B2 protein sequence. No C-erb-B2 gene product could be shown: the demonstration of C-erb-B2 does not seem to help, therefore, in determining diagnosis or prognosis in pulmonary carcinoid tumours.
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http://dx.doi.org/10.1136/jcp.44.4.343 | DOI Listing |
Cancer Discov
January 2025
Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, Texas.
Small cell lung cancer (SCLC) and pulmonary carcinoid tumors are traditionally seen as unrelated, with SCLC linked to smoking and characterized by biallelic loss of RB1 and TP53 and rapid progression. Rekhtman and colleagues upend these assumptions by discovering an "atypical" SCLC that arises in nonsmokers with intact RB1 and TP53 loci, chromothripsis-induced oncogene amplifications on extrachromosomal DNA, and frequent synchronous carcinoid tumors. See related article by Rekhtman et al.
View Article and Find Full Text PDFAnn Thorac Surg Short Rep
December 2024
Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, New York.
Background: The study evaluated the safety and adequacy of percutaneous transsternal anterior mediastinal core biopsy.
Methods: All percutaneous computed tomography-guided transsternal mediastinal 18-gauge core biopsies performed at 2 academic centers were retrospectively reviewed. Procedural, clinical, and pathology data were recorded.
Ann Thorac Surg Short Rep
December 2024
Department of Thoracic Surgery, International University of Health and Welfare Narita Hospital, Narita, Japan.
Advanced-stage atypical carcinoid tumors are seldom seen in the teenaged population. Comprehensive care, extending beyond mere cancer treatment, is essential. A 16-year-old boy received a diagnosis of a 13-mm nodule in the left S lung segment with signs suggesting interlobar pleural indentation.
View Article and Find Full Text PDFInvest New Drugs
January 2025
Postgraduate Training Base Alliance, Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou, 310022, Zhejiang, China.
A novel molecular classification for small cell lung cancer (SCLC) has been established utilizing the transcription factors achaete-scute homologue 1 (ASCL1), neurogenic differentiation factor 1 (NeuroD1), POU class 2 homeobox 3 (POU2F3), and yes-associated protein 1 (YAP1). This classification was predicated on the transcription factors. Conversely, there is a paucity of information regarding the distribution of these markers in other subtypes of pulmonary neuroendocrine tumors (PNET).
View Article and Find Full Text PDFInt J Surg Pathol
January 2025
Department of Pathology, Koc University School of Medicine, Istanbul, Turkey.
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