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  1. Article ; Online: Patient attendance at molecular tumor board: A new means of shared decision making?

    Cannon, Timothy Lewis / Knopp, Laura / Wang, Hongkun / DeMarco, Tiffani / Jessup, John Milburn / Randall, Jamie / Kim, Erica / Trump, Donald L

    Current problems in cancer

    2022  Volume 46, Issue 3, Page(s) 100860

    Abstract: Patient engagement in medical decision-making improves patient related outcomes through compliance and patient satisfaction. The Inova Schar Cancer Institute has a weekly molecular tumor board (MTB) to match comprehensive genomic sequencing results with ... ...

    Abstract Patient engagement in medical decision-making improves patient related outcomes through compliance and patient satisfaction. The Inova Schar Cancer Institute has a weekly molecular tumor board (MTB) to match comprehensive genomic sequencing results with targeted therapies for patients. Primary oncologists extended MTB invitations to their patients. Ultimately, 20 of the 139 patients attended and completed pre- and post MTB surveys. There was a statistically significant change from the pre- to post- survey for the question "I am satisfied with how well informed I am about targeted therapy" with P = 0.016. Patients who attended MTB reported higher levels of satisfaction with their knowledge of targeted therapy after MTB as compared to before. A more holistic method of studying this practice would include sampling a larger patient population and a formal evaluation of the physicians' experience with patients attending.
    MeSH term(s) Clinical Decision-Making ; Decision Making, Shared ; Humans ; Neoplasms/genetics ; Neoplasms/therapy ; Precision Medicine/methods ; Surveys and Questionnaires
    Language English
    Publishing date 2022-04-08
    Publishing country United States
    Document type Letter ; Research Support, Non-U.S. Gov't
    ZDB-ID 441816-5
    ISSN 1535-6345 ; 0147-0272
    ISSN (online) 1535-6345
    ISSN 0147-0272
    DOI 10.1016/j.currproblcancer.2022.100860
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Quantitative proteomic analysis of HER2 protein expression in PDAC tumors.

    Randall, Jamie / Hunt, Allison L / Nutcharoen, Aratara / Johnston, Laura / Chouraichi, Safae / Wang, Hongkun / Winer, Arthur / Wadlow, Raymond / Huynh, Jasmine / Davis, Justin / Corgiat, Brian / Bateman, Nicholas W / Deeken, John F / Petricoin, Emanuel F / Conrads, Thomas P / Cannon, Timothy L

    Clinical proteomics

    2024  Volume 21, Issue 1, Page(s) 24

    Abstract: Metastatic pancreatic adenocarcinoma (PDAC) is the third leading cause of cancer-related death in the United States, with a 5-year survival rate of only 11%, necessitating identification of novel treatment paradigms. Tumor tissue specimens from patients ... ...

    Abstract Metastatic pancreatic adenocarcinoma (PDAC) is the third leading cause of cancer-related death in the United States, with a 5-year survival rate of only 11%, necessitating identification of novel treatment paradigms. Tumor tissue specimens from patients with PDAC, breast cancer, and other solid tumor malignancies were collected and tumor cells were enriched using laser microdissection (LMD). Reverse phase protein array (RPPA) analysis was performed on enriched tumor cell lysates to quantify a 32-protein/phosphoprotein biomarker panel comprising known anticancer drug targets and/or cancer-related total and phosphorylated proteins, including HER2
    Language English
    Publishing date 2024-03-20
    Publishing country England
    Document type Letter
    ZDB-ID 2205154-5
    ISSN 1542-6416
    ISSN 1542-6416
    DOI 10.1186/s12014-024-09476-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Integration of Multi-omic Data in a Molecular Tumor Board Reveals EGFR-Associated ALK-Inhibitor Resistance in a Patient With Inflammatory Myofibroblastic Cancer.

    Hunt, Allison L / Nutcharoen, Aratara / Randall, Jamie / Papazian, Alyssa / Deeken, John / Maxwell, G Larry / Bateman, Nicholas W / Petricoin, Emanuel F / Benyounes, Amin / Conrads, Thomas P / Cannon, Timothy L

    The oncologist

    2023  Volume 28, Issue 8, Page(s) 730–736

    Abstract: Inflammatory myofibroblastic tumors (IMTs) are intermediate-grade mesenchymal neoplasms commonly characterized by chromosomal rearrangements causing constitutive activation of anaplastic lymphoma kinase (ALK) and/or ALK mutations causing reduced ... ...

    Abstract Inflammatory myofibroblastic tumors (IMTs) are intermediate-grade mesenchymal neoplasms commonly characterized by chromosomal rearrangements causing constitutive activation of anaplastic lymphoma kinase (ALK) and/or ALK mutations causing reduced sensitivity to ALK tyrosine kinase inhibitors (TKI). We present a patient with an IMT who initially responded to first-line alectinib, but who later suffered disease relapse and presently survives with moderate residual disease after receiving second-line lorlatinib. Biopsy specimens were analyzed using next generation sequencing (DNA-seq and RNA-seq) and reverse phase protein microarray (RPPA) as part of an institutional Molecular Tumor Board (MTB) study. An EML4-ALK rearrangement and EGFR activation (pEGFRY1068) were present in both the primary and recurrent tumors, while a secondary ALK I1171N mutation was exclusive to the latter. EGFR signaling in the background of a secondary ALK mutation is correlated with reduced ALK TKI sensitivity in vitro, implicating an important mechanism of drug resistance development in this patient. The RPPA results also critically demonstrate that ALK signaling (ALKY1604) was not activated in the recurrent tumor, thereby indicating that standard-of-care use of third- or fourth-line ALK TKI would not likely be efficacious or durable. These results underscore the importance of real-time clinical integration of functional protein drug target activation data with NGS in the MTB setting for improving selection of patient-tailored therapy.
    MeSH term(s) Humans ; Lung Neoplasms/drug therapy ; Multiomics ; Drug Resistance, Neoplasm/genetics ; Neoplasm Recurrence, Local/drug therapy ; Protein Kinase Inhibitors/pharmacology ; Protein Kinase Inhibitors/therapeutic use ; Protein-Tyrosine Kinases/therapeutic use ; ErbB Receptors/metabolism
    Chemical Substances Protein Kinase Inhibitors ; Protein-Tyrosine Kinases (EC 2.7.10.1) ; ErbB Receptors (EC 2.7.10.1) ; EGFR protein, human (EC 2.7.10.1)
    Language English
    Publishing date 2023-05-31
    Publishing country England
    Document type Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1409038-7
    ISSN 1549-490X ; 1083-7159
    ISSN (online) 1549-490X
    ISSN 1083-7159
    DOI 10.1093/oncolo/oyad129
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Concurrent BRAFV600E and BRCA Mutations in MSS Metastatic Colorectal Cancer: Prevalence and Case Series of mCRC patients with prolonged OS.

    Cannon, Timothy Lewis / Randall, Jamie N / Sokol, Ethan S / Alexander, Sonja M / Wadlow, Raymond C / Winer, Arthur A / Barnett, Daniel M / Rayes, Danny L / Nimeiri, Halla S / McGregor, Kimberly A

    Cancer treatment and research communications

    2022  Volume 32, Page(s) 100569

    Abstract: Background: BRAF V600E+ microsatellite stable (MSS) metastatic colorectal cancer (mCRC) patients comprise up to 10% of advanced CRC. They have a poor prognosis with a median survival typically <1 year. Despite use of multi-agent 1: Methods: 36,966 ... ...

    Abstract Background: BRAF V600E+ microsatellite stable (MSS) metastatic colorectal cancer (mCRC) patients comprise up to 10% of advanced CRC. They have a poor prognosis with a median survival typically <1 year. Despite use of multi-agent 1
    Methods: 36,966 CRC pts were sequenced by FMI using hybrid capture comprehensive genomic profiling (CGP) to evaluate all classes of genomic alterations (GA) for pathogenic BRAF mutations and/or a mutation in BRCA1/2 or a co-mutation in other homologous recombination (HR) genes (BARD1, CDK12, FANCL, PALB2, ATM, RAD54L, CHEK2, BRAF, BRIP1, RAD51D, RAD51C, RAD51B, CHEK1). Selected cohort analysis of BRAF V600E co-mutated with BRCA1 and BRCA2 were separated into MSI-H and MSS cohorts. The clinicopathological features and genomic loss of heterozygosity (gLOH) of those with a BRAF V600E and a BRCA1/BRCA2 mutation were collected and analyzed. We also describe 3 consecutive cases of mCRC patients, identified through the Inova Schar Cancer Institute (ISCI) MTB registry, whom had prolonged OS.
    Results: Of 36,966 colorectal cancer pts, 6.6% were BRAF V600E+ and 1.5% had any co-occurring HR gene mutation(s) with 0.6% of the total mCRC population having co-ocurring BRAF V600E and BRCA1/2 alterations. BRCA co-mutations were higher in MSI-High BRAF V600E, however 24.1% of co-occurrences were observed in MSS samples. BRCA1 co-mutation was more commonly associated with MSS BRAF V600E and was associated with a higher gLOH than MSI-H BRAF V600E (18.7% vs 2.8%; p <0.001). In our institutional MTB database, (3/241;1.2%) CRC patients were MSS, BRAF V600E+ with BRCA1 or BRCA2 co-mutations, all somatic in origin, with an average gLOH of 21.4% and overall survivals of 72+(alive), 17+(alive), and 30 months, respectively.
    Conclusion: Co-existence of BRAF V600E/BRCA1/2 may represent a unique subset of advanced MSS CRC that may have a better prognosis and represent an opportunity to test novel targeted therapies. The elevated gLOH in these cases may also be a valuable biomarker for these pts. Larger prospective clinical validation trials in this subset is warranted.
    MeSH term(s) Colonic Neoplasms/diagnosis ; Colonic Neoplasms/genetics ; Colonic Neoplasms/secondary ; Colorectal Neoplasms/diagnosis ; Colorectal Neoplasms/genetics ; Colorectal Neoplasms/secondary ; Genes, BRCA1 ; Genes, BRCA2 ; Humans ; Microsatellite Instability ; Mutation ; Prevalence ; Prognosis ; Prospective Studies ; Proto-Oncogene Proteins B-raf/genetics ; Rectal Neoplasms/diagnosis ; Rectal Neoplasms/genetics ; Rectal Neoplasms/secondary
    Chemical Substances BRAF protein, human (EC 2.7.11.1) ; Proto-Oncogene Proteins B-raf (EC 2.7.11.1)
    Language English
    Publishing date 2022-04-30
    Publishing country England
    Document type Journal Article
    ISSN 2468-2942
    ISSN (online) 2468-2942
    DOI 10.1016/j.ctarc.2022.100569
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Suboptimal Acclimation of Photosynthesis to Light in Wheat Canopies.

    Townsend, Alexandra J / Retkute, Renata / Chinnathambi, Kannan / Randall, Jamie W P / Foulkes, John / Carmo-Silva, Elizabete / Murchie, Erik H

    Plant physiology

    2017  Volume 176, Issue 2, Page(s) 1233–1246

    Abstract: Photosynthetic acclimation (photoacclimation) is the process whereby leaves alter their morphology and/or biochemistry to optimize photosynthetic efficiency and productivity according to long-term changes in the light environment. The three-dimensional ... ...

    Abstract Photosynthetic acclimation (photoacclimation) is the process whereby leaves alter their morphology and/or biochemistry to optimize photosynthetic efficiency and productivity according to long-term changes in the light environment. The three-dimensional architecture of plant canopies imposes complex light dynamics, but the drivers for photoacclimation in such fluctuating environments are poorly understood. A technique for high-resolution three-dimensional reconstruction was combined with ray tracing to simulate a daily time course of radiation profiles for architecturally contrasting field-grown wheat (
    MeSH term(s) Acclimatization/physiology ; Light ; Models, Biological ; Photosynthesis/physiology ; Plant Leaves/physiology ; Plant Proteins/metabolism ; Ribulose-Bisphosphate Carboxylase/metabolism ; Triticum/physiology ; United Kingdom
    Chemical Substances Plant Proteins ; Ribulose-Bisphosphate Carboxylase (EC 4.1.1.39)
    Language English
    Publishing date 2017-12-07
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 208914-2
    ISSN 1532-2548 ; 0032-0889
    ISSN (online) 1532-2548
    ISSN 0032-0889
    DOI 10.1104/pp.17.01213
    Database MEDical Literature Analysis and Retrieval System OnLINE

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