LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 101

Search options

  1. Article ; Online: Aligning Germline Cancer Predisposition With Tumor-Based Next-Generation Sequencing for Modern Oncology Diagnosis, Interception, and Therapeutic Development.

    Yap, Timothy A / Stadler, Zsofia K / Stout, Leigh Anne / Schneider, Bryan P

    American Society of Clinical Oncology educational book. American Society of Clinical Oncology. Annual Meeting

    2023  Volume 43, Page(s) e390738

    Abstract: In the era of precision medicine, genomic interrogation for identification of both germline and somatic genetic alterations has become increasingly important. While such germline testing was usually undertaken via a phenotype-driven single-gene approach, ...

    Abstract In the era of precision medicine, genomic interrogation for identification of both germline and somatic genetic alterations has become increasingly important. While such germline testing was usually undertaken via a phenotype-driven single-gene approach, with the advent of next-generation sequencing (NGS) technologies, the widespread utilization of multigene panels, often agnostic of cancer phenotype, has become a commonplace in many different cancer types. At the same time, somatic tumor testing in oncology performed for the purpose of guiding therapeutic decisions for targeted therapies has also rapidly expanded, recently starting to incorporate not just patients with recurrent or metastatic cancer but even patients with early-stage disease. An integrated approach may be the best approach for the optimal management of patients with different cancers. The lack of complete congruence between germline and somatic NGS tests does not minimize the power or importance of either, but highlights the need to understand their limitations so as not to overlook an important finding or omission. NGS tests built to more uniformly and comprehensively evaluate both the germline and tumor simultaneously are urgently required and are in development. In this article, we discuss approaches to somatic and germline analyses in patients with cancer and the knowledge gained from integration of tumor-normal sequencing. We also detail strategies for the incorporation of genomic analysis into oncology care delivery models and the important emergence of poly(ADP-ribose) polymerase and other DNA Damage Response inhibitors in the clinic for patients with cancer with germline and somatic
    MeSH term(s) Humans ; Neoplasms/diagnosis ; Neoplasms/genetics ; Neoplasms/therapy ; Medical Oncology ; High-Throughput Nucleotide Sequencing ; Neoplasms, Second Primary ; Disease Susceptibility ; Germ Cells
    Language English
    Publishing date 2023-07-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2431126-1
    ISSN 1548-8756 ; 1548-8748
    ISSN (online) 1548-8756
    ISSN 1548-8748
    DOI 10.1200/EDBK_390738
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Sustained Exceptional Response to Poly (ADP-Ribose) Polymerase Inhibition Plus Temozolomide in Metastatic Melanoma With DNA Repair Deficiency.

    Kiel, Patrick J / Radovich, Milan / Schneider, Bryan P / Logan, Theodore F

    JCO precision oncology

    2022  Volume 2, Page(s) 1–7

    Language English
    Publishing date 2022-01-27
    Publishing country United States
    Document type Journal Article
    ISSN 2473-4284
    ISSN (online) 2473-4284
    DOI 10.1200/PO.18.00150
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Clinically significant germline pathogenic variants are missed by tumor genomic sequencing.

    Stout, Leigh Anne / Hunter, Cynthia / Schroeder, Courtney / Kassem, Nawal / Schneider, Bryan P

    NPJ genomic medicine

    2023  Volume 8, Issue 1, Page(s) 30

    Abstract: A germline pathogenic variant may be present even if the results of tumor genomic sequencing do not suggest one. There are key differences in the assay design and reporting of variants between germline and somatic laboratories. When appropriate, both ... ...

    Abstract A germline pathogenic variant may be present even if the results of tumor genomic sequencing do not suggest one. There are key differences in the assay design and reporting of variants between germline and somatic laboratories. When appropriate, both tests should be completed to aid in therapy decisions and determining optimal screening and risk-reduction interventions.
    Language English
    Publishing date 2023-10-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 2813848-X
    ISSN 2056-7944 ; 2056-7944
    ISSN (online) 2056-7944
    ISSN 2056-7944
    DOI 10.1038/s41525-023-00374-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Impact of African ancestry on the relationship between body mass index and survival in an early-stage breast cancer trial (ECOG-ACRIN E5103).

    Ballinger, Tarah J / Jiang, Guanglong / Shen, Fei / Miller, Kathy D / Sledge, George W / Schneider, Bryan P

    Cancer

    2022  Volume 128, Issue 11, Page(s) 2174–2181

    Abstract: Background: African ancestry (AA) and obesity are associated with worse survival in early-stage breast cancer. Obesity disproportionately affects women of AA; however, the intersection between ancestry and obesity on breast cancer outcomes remains ... ...

    Abstract Background: African ancestry (AA) and obesity are associated with worse survival in early-stage breast cancer. Obesity disproportionately affects women of AA; however, the intersection between ancestry and obesity on breast cancer outcomes remains unclear.
    Methods: A total of 2854 patients in the adjuvant trial E5103 were analyzed. Genetic ancestry was determined using principal components from a genome-wide array. The impact of continuous or binary body mass index (BMI) on disease-free survival (DFS) and overall survival (OS) was evaluated by multivariable Cox proportional hazards models in AA patients and European ancestry (EA) patients.
    Results: There were 2471 EA patients and 383 AA patients. Higher BMI was significantly associated with worse DFS and OS only in AA patients (DFS hazard ratio [HR], 1.25; 95% CI, 1.07-1.46; OS HR, 1.38; 95% CI, 1.10-1.73), not in EA patients (DFS HR, 0.97; 95% CI, 0.90-1.05; OS HR, 1.03; 95% CI, 0.93-1.14). Severe obesity (BMI ≥40) was significantly associated with worse survival in AA patients (DFS HR, 2.04; 95% CI, 1.21-3.43; OS HR, 2.21; 95% CI, 1.03-4.75) but had no impact on that of EA patients. In the estrogen receptor-positive (ER+) and triple-negative breast cancer subgroups, BMI was significantly associated with worse outcomes only in those AA patients with ER+ disease. Within the AA group, BMI remained associated with worse survival regardless of the AA proportion.
    Conclusions: Higher BMI was statistically significantly associated with worse breast cancer outcomes in AA but not EA patients. This association was most significant for severe obesity and those with ER+ disease. These observations help define optimal populations for weight change interventions designed to affect disparities and survival in early-stage breast cancer.
    Lay summary: African ancestry and obesity are both risk factors for worse survival after early-stage breast cancer. Women of African descent are also disproportionately affected by obesity; however, it is unclear what impact body weight has on racial disparities in breast cancer. Data from a large phase 3 clinical trial in high-risk, early-stage breast cancer were used to determine how body weight affects survival outcomes in European versus African Americans. Study results demonstrate that a higher body mass index is associated with increased risk of breast cancer recurrence and worse survival in women of African ancestry but not in women of European ancestry.
    MeSH term(s) Black People ; Body Mass Index ; Breast Neoplasms/ethnology ; Breast Neoplasms/pathology ; Female ; Health Status Disparities ; Humans ; Neoplasm Staging ; Obesity/complications ; Obesity/ethnology ; Prognosis ; Survival Analysis ; White People
    Language English
    Publishing date 2022-03-14
    Publishing country United States
    Document type Clinical Trial, Phase III ; Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 1429-1
    ISSN 1097-0142 ; 0008-543X ; 1934-662X
    ISSN (online) 1097-0142
    ISSN 0008-543X ; 1934-662X
    DOI 10.1002/cncr.34173
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Reply to K. Nozawa et al.

    Schneider, Bryan P / Ballinger, Tarah J / Jiang, Guanglong / Shen, Fei / Kassem, Nawal / Miller, Kathy D

    Journal of clinical oncology : official journal of the American Society of Clinical Oncology

    2022  Volume 40, Issue 17, Page(s) 1963–1964

    Language English
    Publishing date 2022-03-31
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 604914-x
    ISSN 1527-7755 ; 0732-183X
    ISSN (online) 1527-7755
    ISSN 0732-183X
    DOI 10.1200/JCO.22.00288
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Clinicogenomic Landscape of Metastatic Thymic Epithelial Tumors.

    Ardeshir-Larijani, Fatemeh / Schneider, Bryan P / Althouse, Sandra K / Radovich, Milan / Masood, Ashiq / Perna, Fabiana / Salman, Huda / Loehrer, Patrick J

    JCO precision oncology

    2023  Volume 7, Page(s) e2200465

    Abstract: Background: Despite favorable clinical outcomes, a subset of patients with thymic epithelial tumors (TETs) develop metastasis. The Cancer Genome Atlas (TCGA) provides genomic data on primary TETs (pTETs). This study assessed the molecular alterations ... ...

    Abstract Background: Despite favorable clinical outcomes, a subset of patients with thymic epithelial tumors (TETs) develop metastasis. The Cancer Genome Atlas (TCGA) provides genomic data on primary TETs (pTETs). This study assessed the molecular alterations and uncovered targetable pathways in metastatic TETs (mTETs).
    Methods: From 2015 to 2020, 49 patients with stage IV TETs underwent Clinical Laboratory Improvement Amendments-based sequencing using whole-exome sequencing (n = 33), panel-based testing (n = 12), and/or liquid biopsy (n = 24). Specimens were obtained from a metastatic organ (n = 36) or relapsed primary mediastinal mass (n = 10), whereas four patients underwent a liquid biopsy only. Data on pTETs were derived from the TCGA.
    Results: Compared with the pTET data set, patients with mTETs were younger (54 years
    Conclusion: Clinically actionable genomic alterations are frequently observed in mTETs, indicating a value of repeat biopsy (preferably from a metastatic site of TETs for sequencing at the time of recurrence (TCGA data).
    MeSH term(s) Humans ; Thymoma/genetics ; Thymoma/pathology ; Thymus Neoplasms/genetics ; Thymus Neoplasms/pathology ; Carcinoma ; Neoplasms, Glandular and Epithelial/genetics
    Language English
    Publishing date 2023-06-14
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ISSN 2473-4284
    ISSN (online) 2473-4284
    DOI 10.1200/PO.22.00465
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Molecular and clinical effects of aromatase inhibitor therapy on skeletal muscle function in early-stage breast cancer.

    Seibert, Tara A / Shi, Lei / Althouse, Sandra / Hoffman, Richard / Schneider, Bryan P / Russ, Kristen A / Altherr, Cody A / Warden, Stuart J / Guise, Theresa A / Coggan, Andrew R / Ballinger, Tarah J

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 1029

    Abstract: We evaluated biochemical changes in skeletal muscle of women with breast cancer initiating aromatase inhibitors (AI), including oxidation of ryanodine receptor RyR1 and loss of stabilizing protein calstabin1, and detailed measures of muscle function. ... ...

    Abstract We evaluated biochemical changes in skeletal muscle of women with breast cancer initiating aromatase inhibitors (AI), including oxidation of ryanodine receptor RyR1 and loss of stabilizing protein calstabin1, and detailed measures of muscle function. Fifteen postmenopausal women with stage I-III breast cancer planning to initiate AI enrolled. Quadriceps muscle biopsy, dual-energy x-ray absorptiometry, isokinetic dynamometry, Short Physical Performance Battery, grip strength, 6-min walk, patient-reported outcomes, and serologic measures of bone turnover were assessed before and after 6 months of AI. Post-AI exposure, oxidation of RyR1 significantly increased (0.23 ± 0.37 vs. 0.88 ± 0.80, p < 0.001) and RyR1-bound calstabin1 significantly decreased (1.69 ± 1.53 vs. 0.74 ± 0.85, p < 0.001), consistent with dysfunctional calcium channels in skeletal muscle. Grip strength significantly decreased at 6 months. No significant differences were seen in isokinetic dynamometry measures of muscle contractility, fatigue resistance, or muscle recovery post-AI exposure. However, there was significant correlation between oxidation of RyR1 with muscle power (r = 0.60, p = 0.02) and muscle fatigue (r = 0.57, p = 0.03). Estrogen deprivation therapy for breast cancer resulted in maladaptive changes in skeletal muscle, consistent with the biochemical signature of dysfunctional RyR1 calcium channels. Future studies will evaluate longer trajectories of muscle function change and include other high bone turnover states, such as bone metastases.
    MeSH term(s) Female ; Humans ; Ryanodine Receptor Calcium Release Channel ; Aromatase Inhibitors/pharmacology ; Aromatase Inhibitors/therapeutic use ; Breast Neoplasms/drug therapy ; Muscle, Skeletal ; Walking
    Chemical Substances Ryanodine Receptor Calcium Release Channel ; Aromatase Inhibitors
    Language English
    Publishing date 2024-01-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-51751-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Profiling the molecular and clinical landscape of glioblastoma utilizing the Oncology Research Information Exchange Network brain cancer database.

    Demetriou, Alexandra N / Chow, Frances / Craig, David W / Webb, Michelle G / Ormond, D Ryan / Battiste, James / Chakravarti, Arnab / Colman, Howard / Villano, John L / Schneider, Bryan P / Liu, James K C / Churchman, Michelle L / Zada, Gabriel

    Neuro-oncology advances

    2024  Volume 6, Issue 1, Page(s) vdae046

    Abstract: Background: Glioblastoma exhibits aggressive growth and poor outcomes despite treatment, and its marked variability renders therapeutic design and prognostication challenging. The Oncology Research Information Exchange Network (ORIEN) database contains ... ...

    Abstract Background: Glioblastoma exhibits aggressive growth and poor outcomes despite treatment, and its marked variability renders therapeutic design and prognostication challenging. The Oncology Research Information Exchange Network (ORIEN) database contains complementary clinical, genomic, and transcriptomic profiling of 206 glioblastoma patients, providing opportunities to identify novel associations between molecular features and clinical outcomes.
    Methods: Survival analyses were performed using the Logrank test, and clinical features were evaluated using Wilcoxon and chi-squared tests with
    Results: Key findings include an association of
    Conclusions: Herein, we report the first clinical, genomic, and transcriptomic analysis of ORIEN glioblastoma cases, incorporating sample reclassification under updated 2021 diagnostic criteria. These findings create multiple avenues for further investigation and reinforce the value of multi-institutional consortia such as ORIEN in deepening our knowledge of intractable diseases such as glioblastoma.
    Language English
    Publishing date 2024-03-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 3009682-0
    ISSN 2632-2498 ; 2632-2498
    ISSN (online) 2632-2498
    ISSN 2632-2498
    DOI 10.1093/noajnl/vdae046
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Germline predictors for bevacizumab induced hypertensive crisis in ECOG-ACRIN 5103 and BEATRICE.

    Shen, Fei / Jiang, Guanglong / Philips, Santosh / Cantor, Erica / Gardner, Laura / Xue, Gloria / Cunningham, Geneva / Kassem, Nawal / O'Neill, Anne / Cameron, David / Suter, Thomas M / Miller, Kathy D / Sledge, George W / Schneider, Bryan P

    British journal of cancer

    2024  Volume 130, Issue 8, Page(s) 1348–1355

    Abstract: Background: Bevacizumab is a beneficial therapy in several advanced cancer types. Predictive biomarkers to better understand which patients are destined to benefit or experience toxicity are needed. Associations between bevacizumab induced hypertension ... ...

    Abstract Background: Bevacizumab is a beneficial therapy in several advanced cancer types. Predictive biomarkers to better understand which patients are destined to benefit or experience toxicity are needed. Associations between bevacizumab induced hypertension and survival have been reported but with conflicting conclusions.
    Methods: We performed post-hoc analyses to evaluate the association in 3124 patients from two phase III adjuvant breast cancer trials, E5103 and BEATRICE. Differences in invasive disease-free survival (IDFS) and overall survival (OS) between patients with hypertension and those without were compared. Hypertension was defined as systolic blood pressure (SBP) ≥ 160 mmHg (n = 346) and SBP ≥ 180 mmHg (hypertensive crisis) (n = 69). Genomic analyses were performed to evaluate germline genetic predictors for the hypertensive crisis.
    Results: Hypertensive crisis was significantly associated with superior IDFS (p = 0.015) and OS (p = 0.042), but only IDFS (p = 0.029; HR = 0.28) remained significant after correction for prognostic factors. SBP ≥ 160 mmHg was not associated with either IDFS or OS. A common single-nucleotide polymorphism, rs6486785, was significantly associated with hypertensive crisis (p = 8.4 × 10
    Conclusion: Bevacizumab-induced hypertensive crisis is associated with superior outcomes and rs6486785 predicted an increased risk of this key toxicity.
    MeSH term(s) Female ; Humans ; Bevacizumab/adverse effects ; Breast Neoplasms/drug therapy ; Breast Neoplasms/genetics ; Breast Neoplasms/chemically induced ; Germ Cells ; Hypertension/chemically induced ; Hypertensive Crisis
    Chemical Substances Bevacizumab (2S9ZZM9Q9V)
    Language English
    Publishing date 2024-02-12
    Publishing country England
    Document type Clinical Trial, Phase III ; Journal Article
    ZDB-ID 80075-2
    ISSN 1532-1827 ; 0007-0920
    ISSN (online) 1532-1827
    ISSN 0007-0920
    DOI 10.1038/s41416-024-02602-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Identification of germline cancer predisposition variants during clinical ctDNA testing.

    Stout, Leigh Anne / Kassem, Nawal / Hunter, Cynthia / Philips, Santosh / Radovich, Milan / Schneider, Bryan P

    Scientific reports

    2021  Volume 11, Issue 1, Page(s) 13624

    Abstract: Next-generation sequencing of circulating tumor DNA (ctDNA) is a non-invasive method to guide therapy selection for cancer patients. ctDNA variant allele frequency (VAF) is commonly reported and may aid in discerning whether a variant is germline or ... ...

    Abstract Next-generation sequencing of circulating tumor DNA (ctDNA) is a non-invasive method to guide therapy selection for cancer patients. ctDNA variant allele frequency (VAF) is commonly reported and may aid in discerning whether a variant is germline or somatic. We report on the fidelity of VAF in ctDNA as a predictor for germline variant carriage. Two patient cohorts were studied. Cohort 1 included patients with known germline variants. Cohort 2 included patients with any variant detected by the ctDNA assay with VAF of 40-60%. In cohort 1, 36 of 91 (40%) known germline variants were identified through ctDNA analysis with a VAF of 39-87.6%. In cohort 2, 111 of 160 (69%) variants identified by ctDNA analysis with a VAF between 40 and 60% were found to be germline. Therefore, variants with a VAF between 40 and 60% should induce suspicion for germline status but should not be used as a replacement for germline testing.
    MeSH term(s) Adult ; Aged ; Biomarkers, Tumor/genetics ; Circulating Tumor DNA/genetics ; Female ; Gene Frequency ; Genetic Testing ; Germ-Line Mutation ; Humans ; Male ; Middle Aged ; Neoplasms/genetics
    Chemical Substances Biomarkers, Tumor ; Circulating Tumor DNA
    Language English
    Publishing date 2021-07-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-021-93084-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top