Abstract:
:The predictive effect of circulating tumor DNA (ctDNA) in colorectal cancer (CRC) treatment is still highly discussed. The primary objective of our study was to investigate a possible prognostic/predictive value of ctDNA under regorafenib treatment. This prospective multicenter translational biomarker phase II pilot study enrolled 30 metastatic CRC patients (67% men, 33% women) treated with regorafenib. ctDNA was assessed in plasma before treatment start and at defined time points during administration. Measurement of tumor fraction as well as mutation and copy number analysis of CRC driver genes were performed by next-generation sequencing approaches. Multivariate analyses for survival and treatment efficacy were adjusted to age, gender and Eastern Cooperative Oncology Group. Disease control rate was 30%. Median tumor fraction at baseline was 18.5% (0-49.9). Mutations in CRC driver genes or genes involved in angiogenesis were identified in 25 patients (83.3%). KRAS mutations were detected in 13 of 14 KRAS-positive tumors; in three patients without KRAS mutation in the respective tumors, acquired mutations as a consequence of prior anti-EGFR treatment were detected. In a subset of patients, novel occurring mutations or focal amplifications were detected. A tumor fraction of 5% and higher at baseline was significantly associated with a decreased OS (P = .022; hazard ratio 3.110 (95% confidence interval: 1.2-8.2). ctDNA is detectable in a high proportion of mCRC patients. Higher ctDNA levels are associated with survival among regorafenib treatment. Moreover, our data highlight the benefit of a combined evaluation of mutations and somatic copy number alterations in advanced cancer patients.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Unseld M,Belic J,Pierer K,Zhou Q,Moser T,Bauer R,Piringer G,Gerger A,Siebenhüner A,Speicher M,Heitzer E,Prager GWdoi
10.1002/ijc.33303subject
Has Abstractpub_date
2021-03-15 00:00:00pages
1452-1461issue
6eissn
0020-7136issn
1097-0215journal_volume
148pub_type
杂志文章abstract::In order to gain new insights into the risk factors influencing human-T-cell-leukemia/lymphoma-virus-type-I (HTLV-I) mother-to-child transmission, a retrospective study of HTLV-I infection among children born to HTLV-I-seropositive women was carried out in a highly HTLV-I-endemic population of African origin living in...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19990909)82:6<832::aid-ijc
更新日期:1999-09-09 00:00:00
abstract::Although new treatments have been widely studied to improve the survival of patients with metastatic breast cancer (BC), prognosis continues to be poor with an average survival time no longer than 3 years. We carried on a population-based study with the purpose of evaluating the outcome of metastatic breast cancer in ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.29503
更新日期:2015-09-15 00:00:00
abstract::A single treatment of chick embryo fibroblasts with DNA recovered from chick embryo fibroblasts productively infected and transformed with four different strains of RSV, or productively infected with two different strains of RAV, resulted in virus production and cell transformation (in the case of RSV) two or three p...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910150109
更新日期:1975-01-15 00:00:00
abstract::This report describes the appearance of ectopic chromosome around centrosome (ECAC) in metaphase cell nuclei of high-risk HPV-associated cervical neoplasms. ECAC are clearly visible on HE-stained sections as a tiny (approx. 0.7 micro), round, dark structure or an aggregate of filamentous chromosome, often symmetrical ...
journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1002/ijc.11216
更新日期:2003-08-20 00:00:00
abstract::An experiment in which rats were injected intrapleurally with asbestos, the injection taking place at an age of either 2 or 10 months, is reported. In the former group 19 out of 48 rats developed a mesothelioma compared with 17 out of 90 in the latter group. However, by considering the two groups at equal times after ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910170410
更新日期:1976-04-15 00:00:00
abstract::The purpose of this study was to induce in postnatal life the selective growth of altered hepatocytic populations which had been induced in utero by various chemicals. Pregnant rats of a Wistar strain were given a single dose of various chemical carcinogens on the 18th gestational day. From two months postpartum, both...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910290317
更新日期:1982-03-15 00:00:00
abstract::To obtain a comprehensive overview of chromosomal alterations that may underlie human papillomavirus (HPV)-mediated immortalization, 4 foreskin keratinocyte cell lines generated by transfection with either HPV 16 (cell lines FK16A and FK16B) or HPV 18 (FK18A and FK18B) were subjected to chromosomal analysis using comp...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19980504)76:3<412::aid-ijc
更新日期:1998-05-04 00:00:00
abstract::Little is known about age-dependent variation in outcomes of cervical cytology with modern technologies. This population-based study evaluated age-dependent changes after routine implementation of ThinPrep and SurePath technology in two independent laboratories, and controlled for time trends in a third laboratory usi...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.28532
更新日期:2014-05-01 00:00:00
abstract::We conducted a case-control study of adenocarcinoma of the lung and exposure to environmental tobacco smoke (ETS) in 7 countries. We interviewed 70 cases of adenocarcinoma of the lung and 178 population or hospital controls. All subjects had smoked fewer than 400 cigarettes in their lifetimes. Ever exposure to ETS fro...
journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1002/(sici)1097-0215(19991126)83:5<635::aid-ijc
更新日期:1999-11-26 00:00:00
abstract::Multidrug resistance, the phenomenon by which cells treated with a drug become resistant to the cytotoxic effect of a variety of other structurally and functionally unrelated drugs, is often associated with the expression of P-glycoprotein, an efflux membrane pump coded by the MDR1 (ABCB1) gene. Transcription from MDR...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23149
更新日期:2008-03-01 00:00:00
abstract::Deletions on chromosomes 1p and 19q are associated with favorable prognosis in patients with oligodendroglial tumors. The aim of our study was to identify additional genomic aberrations linked to patient survival. We performed a genome-wide screen for genomic imbalances by comparative genomic hybridization on tumors f...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22574
更新日期:2007-06-01 00:00:00
abstract::We examined cancer-associated fibroblasts (CAFs) and a panel of immunohistochemical markers of epithelial-mesenchymal transition (EMT) in 19 pair-matched oral tongue squamous cell carcinoma (SCC) and metastatic tumors to regional lymph nodes (RLNs). alpha-Smooth muscle actin (alpha-SMA) was studied to identify CAFs. E...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25358
更新日期:2010-09-01 00:00:00
abstract::A PCR assay using capillary electrophoresis was designed for the detection of c-erbB-2 gene amplification in alcohol-formalin-acetic acid (AFA)-fixed, paraffin-embedded biopsies from 81 consecutive breast tumors. c-erbB-2 expression was analyzed in the same samples using immuno-histochemistry (IHC). In the competitive...
journal_title:International journal of cancer
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/(sici)1097-0215(19991008)83:2<157::aid-ijc
更新日期:1999-10-08 00:00:00
abstract::Our aim was to evaluate whether serum concentrations of squamous cell carcinoma antigen (SCC-Ag) are an independent prognostic factor in patients with vulvar cancer. We measured SCC-Ag in pretreatment serum samples of 55 patients with squamous cell vulvar cancer, 30 patients with vulvar intraepithelial neoplasia (VIN)...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19990621)84:3<299::aid-ijc
更新日期:1999-06-21 00:00:00
abstract::Actin, a highly conserved protein comprising cell stress fibers and other cellular structures, is found in both the cytoplasm and nucleus of cells and responds to both epigenetic signals and altered gene expression occurring during tumorigenesis. We have previously shown that changes in the cytoplasmic F- and G-actin ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19970207)70:4<423::aid-ijc
更新日期:1997-02-07 00:00:00
abstract::During the 7th annual follow-up of our cohort of homosexual men in 1989, we tested the hypotheses that infection with human immunodeficiency virus (HIV) may enhance the expression of human papilloma virus (HPV) and that the development of anal epithelial abnormality is related to a biologic interaction between these t...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910460212
更新日期:1990-08-15 00:00:00
abstract::Pancreatic cancer remains the fourth most common cause of cancer related death in the United States. Therefore, novel strategies for the prevention and treatment are urgently needed. Genistein is a prominent isoflavonoid found in soy products and has been proposed to be responsible for lowering the rate of pancreatic ...
journal_title:International journal of cancer
pub_type: 杂志文章,收录出版
doi:10.1002/ijc.21589
更新日期:2006-04-15 00:00:00
abstract::Irinotecan-based chemotherapy with bevacizumab is one of the first-line standard therapies for metastatic colorectal cancer (mCRC). TEGAFIRI (UFT/LV + irinotecan) is an irinotecan-based chemotherapy regimen. Currently, few clinical data regarding TEGAFIRI are available. This study evaluated the efficacy and safety of ...
journal_title:International journal of cancer
pub_type: 杂志文章,随机对照试验
doi:10.1002/ijc.30127
更新日期:2016-08-15 00:00:00
abstract::Although heparin can regulate angiogenesis, tumor growth and metastasis, its clinical application, as well as that of low-molecular heparin (LMWH), for treating cancer are limited because of heparin's anticoagulant activity and risk of hemorrhages. LMWH-taurocholate conjugates (LHT7), which have low anticoagulant acti...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.24239
更新日期:2009-06-15 00:00:00
abstract::Galectin-1 and galectin-3 are galactoside-binding proteins involved in different steps of tumor progression and potential targets for therapy. We have investigated the expression of these galectins in 38 human bladder transitional-cell carcinomas of different histological grade and clinical stage and in 5 normal uroth...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19990219)84:1<39::aid-ijc8
更新日期:1999-02-19 00:00:00
abstract::Malignant lymphomas frequently develop in the pleural cavity of patients with long-standing pyothorax. The term pyothorax-associated lymphoma (PAL) has been proposed for this type of tumor. Most PALs are diffuse lymphomas of the B-cell type and contain Epstein-Barr virus (EBV) DNA. We have established 2 lymphoma cell ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0215(19960703)67:1<86::AID-IJC1
更新日期:1996-07-03 00:00:00
abstract::In order to define technical limitations of conventional external beam irradiation for clinically localized prostate cancer, we evaluated the impact of several reduced-field treatment factors, such as reduced-field (RF) irradiated volume, RF technique, photon energy of treatment, and dose on survival endpoints and loc...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:
更新日期:2000-10-20 00:00:00
abstract::We characterized 8 human hepatocellular-carcinoma cell lines established from the primary tumors of Korean patients. All lines showed substrate adherence and one line from anaplastic tumor also grew as floating aggregates. Most cultured cells maintained many morphological characteristics of the original tumors from wh...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910620308
更新日期:1995-07-28 00:00:00
abstract::Desmoids represent the most important cause of death, after colorectal cancer, in patients affected with familial adenomatous polyposis (FAP), an inherited disease due to mutations in the APC gene. The aims of our study were to estimate the risk of developing desmoids in FAP patients and to evaluate the association be...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(20010320)95:2<102::aid-ijc1018>3
更新日期:2001-03-20 00:00:00
abstract::A triazene-xenogenized tumor sub-line was derived from the mouse mastocytoma cell line P815 following several transplant generations in vivo on DTIC. The highly immunogenic P815/DTIC variant line expressed new CTL-defined antigens. Novel antigens were also detected by antibodies in immunoprecipitation and by Western b...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910550227
更新日期:1993-09-09 00:00:00
abstract::We have previously shown that AEV infection of leukosis-free chickens provokes an erythroleukemia in the infected birds, and that the target cell for virus transformation is most likely an early pro-erythroblast comparable to the BFU-E. The virus infection correlates with a block in differentiation which was studied a...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910290511
更新日期:1982-05-15 00:00:00
abstract::Incidence data pertaining to more than 250,000 cancer cases diagnosed during the years 1972-1989 among residents of urban Shanghai, China, were analyzed to determine the relative importance of the various malignancies and to discover changes over time. In the most recent 3-year period, lung cancer was the most frequen...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910530510
更新日期:1993-03-12 00:00:00
abstract::An antiserum to SF antigen was shown to be selectively cytotoxic to two human fibroblast lines, while two tumor cell lines (one melanoma and one Hela cell line) were resistant. The selective cytotoxicity was also demonstrable in mixtures of fibroblasts and tumor cells. The cytotoxic effect was abrogated by admixture o...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910180317
更新日期:1976-09-15 00:00:00
abstract::Molecular markers predictive of prostate cancer prognosis are urgently needed. Overexpression of the antiapoptotic protein, Bcl-2, has repeatedly been shown to be associated with adverse outcome in this malignancy. We hypothesized that a regulatory BCL2 -938C>A promoter polymorphism, which significantly affects promot...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25904
更新日期:2011-11-15 00:00:00
abstract::Human T-cell leukemia virus type I (HTLV-I) is etiologically associated with adult T-cell leukemia/lymphoma (ATL). We cloned and sequenced host DNA adjacent to the long terminal repeats of HTLV-I from uncultured leukemic cells of 4 ATL patients. The region flanking the provirus was generally A/T-rich (60-64% A/T), and...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0215(19960103)65:1<20::AID-IJC4
更新日期:1996-01-03 00:00:00