scholarly journals Advances in targeted therapy for esophageal cancer

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Yan-Ming Yang ◽  
Pan Hong ◽  
Wen Wen Xu ◽  
Qing-Yu He ◽  
Bin Li

Abstract Esophageal cancer (EC) is one of the most lethal cancers in the world, and its morbidity and mortality rates rank among the top ten in China. Currently, surgical resection, radiotherapy and chemotherapy are the primary clinical treatments for esophageal cancer. However, outcomes are still unsatisfactory due to the limited efficacy and severe adverse effects of conventional treatments. As a new type of approach, targeted therapies have been confirmed to play an important role in the treatment of esophageal cancer; these include cetuximab and bevacizumab, which target epidermal growth factor receptor (EGFR) and vascular endothelial growth factor (VEGF), respectively. In addition, other drugs targeting surface antigens and signaling pathways or acting on immune checkpoints have been continuously developed. For example, trastuzumab, a monoclonal antibody targeting human epidermal growth factor receptor 2 (HER-2), has been approved by the Food and Drug Administration (FDA) as a first-line treatment of HER-2-positive cancer. Moreover, the PD-L1 inhibitor pembrolizumab has been approved as a highly efficient drug for patients with PD-L1-positive or advanced esophageal squamous cell carcinoma (ESCC). These novel drugs can be used alone or in combination with other treatment strategies to further improve the treatment efficacy and prognosis of cancer patients. Nevertheless, adverse events, optimal dosages and effective combinations still need further investigation. In this review, we expound an outline of the latest advances in targeted therapies of esophageal cancer and the mechanisms of relevant drugs, discuss their efficacy and safety, and provide a clinical rationale for precision medicine in esophageal cancer.

1992 ◽  
Vol 7 (2) ◽  
pp. 114-118 ◽  
Author(s):  
A.M. Mileo ◽  
M. Fanuele ◽  
F. Battaglia ◽  
G. Scambia ◽  
C. Benedetti-Panici ◽  
...  

The HER-2/neu oncogene (a member of the Erb-like oncogene family) is distinct from but closely related to the c-erb B gene which encodes the epidermal growth factor receptor (EGFr). HER-2/neu gene amplification was found in a large number of mammary carcinomas and there was a strong correlation between this phenomenon and poor prognosis. In our study HER-2/neu oncogene expression was determined in 16 malignant ovarian tumors, 2 ovarian lymphomas and 5 normal ovaries. The HER-2/neu gene was found both in normal ovaries and malignant tumors, without any apparent difference among the various histological types. In all the specimens examined, HER-2/neu expression did not seem to be related to EGF binding capacity.


2008 ◽  
Vol 65 (4) ◽  
pp. 217-222
Author(s):  
Angelika B. Riemer ◽  
Christoph C. Zielinski

Trastuzumab ist ein humanisierter monoklonaler Antikörper, der gegen den humanen epidermal growth factor receptor-2 (HER-2/neu) gerichtet ist. Dieser Rezeptor ist in 20–30% von invasivem Brustkrebs überexprimiert, und führt dadurch zu aggressiverem Tumorwachstum. Die Bindung von Trastuzumab an den Rezeptor inhibiert über verschiedene Mechanismen das Wachstum und das Überleben der malignen Zellen. Die Effektivität und Sicherheit einer Therapie mit Trastuzumab, vor allem in Kombination mit verschiedenen Chemotherapien, ist in vielen klinischen Studien gezeigt worden. Die wichtigste Nebenwirkung ist die mögliche Entwicklung einer Kardiomyopathie, welche allerdings selten auftritt. Daher sollte jede Patientin, deren Tumor HER-2/neu überexprimiert oder eine HER-2/neu Genamplifikation aufweist, die Option einer Trastuzumab-Therapie erhalten. Dieser Artikel beleuchtet die wichtigsten Studienergebnisse und diskutiert das aktuelle Wissen über einen optimalen Einsatz des Antikörpers.


2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
Giuseppe De Palma ◽  
Paola Mozzoni ◽  
Olga Acampa ◽  
Eveline Internullo ◽  
Paolo Carbognani ◽  
...  

This study was aimed at: (i) investigating the expression profiles of some antioxidant and epidermal growth factor receptor genes in cancerous and unaffected tissues of patients undergoing lung resection for non-small cell lung cancer (NSCLC) (cross-sectional phase), (ii) evaluating if gene expression levels at the time of surgery may be associated to patients' survival (prospective phase). Antioxidant genes included heme oxygenase 1 (HO-1), superoxide dismutase-1 (SOD-1), and -2 (SOD-2), whereas epidermal growth factor receptor genes consisted of epidermal growth factor receptor (EGFR) and v-erb-b2 erythroblastic leukaemia viral oncogene homolog 2 (HER-2). Twenty-eight couples of lung biopsies were obtained and gene transcripts were quantified by Real Time RT-PCR. The average follow-up of patients lasted about 60 months. In the cancerous tissues, antioxidant genes were significantly hypo-expressed than in unaffected tissues. TheHER-2transcript levels prevailed in adenocarcinomas, whereasEGFRin squamocellular carcinomas. Patients overexpressingHER-2in the cancerous tissues showed significantly lower 5-year survival than the others.


Sign in / Sign up

Export Citation Format

Share Document