Relationship between therapeutic efficacy of arterial infusion chemotherapy and expression of P-glycoprotein and p53 protein in advanced hepatocellular carcinoma
| Autor: | Masaharu Yoshikawa, Fukuo Kondo, Masaaki Ebara, Hiromitsu Saisho, Hiroyuki Fukuda, Masahide Akimoto, Tsunenobu Sato |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Drug
Liver Cancer medicine.medical_specialty Carcinoma Hepatocellular Anthracycline media_common.quotation_subject Pharmacology Gastroenterology Carboplatin chemistry.chemical_compound Internal medicine Biopsy Medicine Humans Infusions Intra-Arterial ATP Binding Cassette Transporter Subfamily B Member 1 media_common Epirubicin Retrospective Studies Mitoxantrone medicine.diagnostic_test integumentary system business.industry Liver Neoplasms General Medicine medicine.disease Genes p53 Immunohistochemistry digestive system diseases Gene Expression Regulation Neoplastic chemistry Hepatocellular carcinoma business Immunostaining medicine.drug |
| Popis: | AIM: To investigate the relationship between the chemotherapeutic drug efficacy and the expression of P-glycoprotein (PGP) and p53 protein in advanced hepatocellular carcinoma (HCC). METHODS: The study was conducted on 41 patients with advanced HCC who were treated by repeated arterial infusion chemotherapy. Biopsy specimens from the tumor were collected before the start of treatment in all the patients, and the specimens were stored frozen until immunohistochemical staining, which was performed after the start of treatment, to detect PGP and p53 protein expressions. Twenty of the forty-one patients were treated with an anthracycline drug (epirubicin hydrochloride; anthracycline group), and the remaining 21 were treated with a non-anthracycline drug (mitoxantrone hydrochloride in 11 patients and carboplatin in 10 patients; non-anthracycline group). The relationship between the chemotherapeutic efficacy and the results of immunostaining were compared between the two groups. RESULTS: Before the start of the treatment, PGP-positive rate was 90.2% (strongly-positive, 36.6%) and p53 protein-positive rate was 34.1% (strongly-positive, 19.5%). In the anthracycline group, the response rate was 40.0%. The number of patients showing poor response to the treatment was significantly larger in the patients with strongly positive PGP expression (P = 0.005), and their prognoses were poor (P = 0.001). In the non-anthracycline group, the response rate was 42.9%, and there was no significant relationship between the chemotherapeutic drug efficacy and the PGP or p53 protein expression. When only the data from the 11 patients treated with anthraquinone drug, mitoxantrone, were analyzed, however, the number of patients who showed poor response to treatment was significantly higher among the p53-positive patients (P = 0.012), irrespective of the survival outcome. CONCLUSION: The chemotherapeutic efficacy with an anthracycline drug for advanced HCC can be predicted by immunohistochemical analysis of PGP expression. Similarly, immunostaining to evaluate p53 protein may be useful to predict the response in patients treated with an anthraquinone drug. |
| Databáze: | OpenAIRE |
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