scholarly journals Urokinase-Receptor (u-PAR)–An Essential Player in Multiple Games of Cancer: A Review on Its Role in Tumor Progression, Invasion, Metastasis, Proliferation/dormancy, Clinical Outcome and Minimal Residual Disease

Cell Cycle ◽  
2006 ◽  
Vol 5 (16) ◽  
pp. 1760-1771 ◽  
Keyword(s):  
Clinical Outcome ◽  
Tumor Progression ◽  
Minimal Residual Disease ◽  
Residual Disease ◽  
Urokinase Receptor ◽  
Minimal Residual ◽  
Multiple Games

scholarly journals Prognostic Value of Sequencing-Based Minimal Residual Disease Detection in Patients with Multiple Myeloma Who Underwent Autologous Stem Cell Transplantation

Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 1788-1788 ◽  
Author(s):  
Hiroyuki Takamatsu ◽  
Ryoichi Murata ◽  
Jianbiao Zheng ◽  
Martin Moorhead ◽  
Naoki Takezako ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
Stem Cell ◽  
Clinical Outcome ◽  
Stem Cell Transplantation ◽  
Minimal Residual Disease ◽  
Prognostic Value ◽  
Residual Disease ◽  
Employment Equity ◽  
Equity Ownership ◽  
Minimal Residual

Abstract Background: Autologous stem cell transplantation (ASCT) in conjunction with therapeutic drugs such as bortezomib, thalidomide, and lenalidomide can dramatically improve response rates and the prognosis of patients with multiple myeloma (MM). However, most patients with MM are considered to be incurable, and relapse owing to minimal residual disease (MRD) is the main cause of death among these patients. Here we utilized a next-generation sequencing (NGS) approach for MRD assessment, which offers at least 1 to 2 logs greater sensitivity (10-6) compared to allele-specific oligonucleotide PCR (ASO-PCR) and flow cytometry, respectively (Faham et al Blood 2012). Previous studies have shown that NGS-based MRD assessment 90 days post-ASCT has prognostic value (Martinez-Lopez et al Blood 2014). In this study, we compared the prognostic value of MRD assessment in autografts and bone marrow (BM) samples from MM patients in the ASCT setting. Methods: One hundred and twenty-three Japanese patients with newly diagnosed MM who received various induction regimens prior to ASCT were retrospectively analyzed. All patients received ASCT and were followed between June 15, 2004 and April 25, 2015. All patients had achieved a partial response (PR) or better after ASCT. Analyzed samples included: (1) BM slides from 96 MM patients at diagnosis, (2) fresh/frozen BM cells from 27 MM patients at diagnosis, (3) autografts and/or (4) post-ASCT BM cells obtained at the time of best response based on serum and urine tests. IGH-based ASO-PCR was performed as described previously (Methods Mol Biol 2009). NGS-based MRD assessment was performed using the immunosequencing platform (Adaptive Biotechnologies, South San Francisco, CA) (Martinez-Lopez et al Blood 2014). Results: We compared MRD results in 51 samples assessed by ASO-PCR and NGS. We observed a high correlation between NGS and ASO-PCR results at MRD levels of 10-5 or higher (r=0.86, P<0.0001). Twenty-seven samples were positive by NGS and negative by ASO-PCR, demonstrating the higher sensitivity of NGS (10-6 or higher) vs ASO-PCR (10-4-10-5). We evaluated the association of clinical outcome with post-ASCT BM MRD assessment. Patients who were MRD negative by NGS (defined as <10-6) in post-ASCT BM cases (N=21) showed a significantly better progression free survival (PFS) compared to MRD positive patients (N=31) (P =0.005) (Fig 1A). When restricting the analysis to the 39 patients in complete response (CR), patients who were MRD negative by NGS (N=20) showed a significantly better PFS than those that were MRD positive (N=19) (P =0.042). We also evaluated the association of clinical outcome with autograft MRD assessment. 53 patients received post-ASCT therapy using novel agents such as bortezomib/lenalidomide/thalidomide, and 45 patients did not. Among the 45 patients who did not receive post ASCT treatment, patients with NGS-based MRD negativity in the autograft (N=11) had a significantly better PFS (P=0.012) and tended to have a better OS (p=0.203) than those who were MRD positive (N=34), with prognosis clearly stratified by the quantitative level of MRD (Figs 1B, 1C). MRD assessment from the 53 patients who did receive post ASCT treatment tended to show a similar pattern. Finally, we studied whether clinical outcomes would have been altered by treatment in this cohort. Patients whose autografts were negative by NGS-based MRD assessment (N=19) had 100% PFS and OS at 5 years post ASCT irrespective of whether or not they received post ASCT treatment. Conversely, post ASCT treatment had a significant effect on the outcome of patients whose autografts were MRD positive by NGS. Specifically, the NGS-based MRD positive patients who received post ASCT treatment (N=45) had a significantly better PFS (P=0.003) and tended to have a better OS than those that were untreated (N=34) (Figs 1D, 1E). Conclusions: In this study, we show the prognostic value of NGS-based MRD assessment in autografts of patients with MM. The NGS platform has improved sensitivity compared with ASO-qPCR in detecting MRD in autografts. Importantly, this retrospective study suggests that therapeutic intervention based on NGS-based MRD positivity has a significant effect on patient outcome in the post-ASCT setting. Disclosures Zheng: Adaptive Biotechnologies Corp.: Employment, Equity Ownership. Moorhead:Adaptive Biotechnologies Corp.: Employment, Equity Ownership. Faham:Adaptive Biotechnologies Corp.: Employment, Other: Stockholder.

Minimal Residual Disease Tests Provide an Independent Predictor of Clinical Outcome in Adult Acute Lymphoblastic Leukemia

2002 ◽  
Vol 20 (4) ◽  
pp. 1094-1104 ◽  
Author(s):  
Forida Y. Mortuza ◽  
Mary Papaioannou ◽  
Ilidia M. Moreira ◽  
Luke A. Coyle ◽  
Paula Gameiro ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Acute Lymphoblastic Leukemia ◽  
Clinical Outcome ◽  
Minimal Residual Disease ◽  
Residual Disease ◽  
Lymphoblastic Leukemia ◽  
Disease Free Survival ◽  
Adult Patients ◽  
Exact Test ◽  
Minimal Residual

PURPOSE: Investigation of minimal residual disease (MRD) in childhood acute lymphoblastic leukemia (ALL) using molecular markers has proven superior to other standard criteria (age, sex, and WBC) in distinguishing patients at high, intermediate, and low risk of relapse. The aim of our study was to determine whether MRD investigation is valuable in predicting outcome in Philadelphia-negative adult patients with ALL. PATIENTS AND METHODS: MRD was assessed in 85 adult patients with B-lineage ALL by semiquantitative immunoglobulin H gene analysis on bone marrow samples collected during four time bands in the first 24 months of treatment. Fifty patients received chemotherapy only and 35 patients received allogeneic (n = 19) or autologous (n = 16) bone marrow transplantation (BMT) in first clinical remission. The relationship between MRD status and clinical outcome was investigated and compared with age, sex, immunophenotype, and presenting WBC count. RESULTS: Fisher’s exact test established a statistically significant concordance between MRD results and clinical outcome at all times. Disease-free survival (DFS) rates for MRD-positive and -negative patients and log-rank testing established that MRD positivity was associated with increased relapse rates at all times (P < .05) but was most significant at 3 to 5 months after induction and beyond. MRD status after allogeneic BMT rather than before was found to be an important predictor of outcome in 19 adult patients with ALL tested. In patients receiving autologous BMT (n = 16), the MRD status before BMT was more significant (P = .005). CONCLUSION: The association of MRD test results and DFS was independent of and greater than other standard predictors of outcome and is therefore important in determining treatment for individual patients.

scholarly journals Association of Minimal Residual Disease With Clinical Outcome in Pediatric and Adult Acute Lymphoblastic Leukemia

JAMA Oncology ◽  
2017 ◽  
Vol 3 (7) ◽  
pp. e170580 ◽  
Author(s):  
Donald A. Berry ◽  
Shouhao Zhou ◽  
Howard Higley ◽  
Lata Mukundan ◽  
Shuangshuang Fu ◽  
...  
Keyword(s):  
Acute Lymphoblastic Leukemia ◽  
Clinical Outcome ◽  
Minimal Residual Disease ◽  
Residual Disease ◽  
Lymphoblastic Leukemia ◽  
Adult Acute Lymphoblastic Leukemia ◽  
Minimal Residual

Impact of post-transplant minimal residual disease on the clinical outcome of pediatric acute leukemia

2017 ◽  
Vol 21 (4) ◽  
pp. e12926 ◽  
Author(s):  
Katsutsugu Umeda ◽  
Atsushi Iwai ◽  
Koji Kawaguchi ◽  
Masamitsu Mikami ◽  
Seishiro Nodomi ◽  
...  
Keyword(s):  
Clinical Outcome ◽  
Acute Leukemia ◽  
Minimal Residual Disease ◽  
Residual Disease ◽  
Post Transplant ◽  
Minimal Residual
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