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  1. Article ; Online: Spontaneous regression of neuroblastoma.

    Brodeur, Garrett M

    Cell and tissue research

    2018  Volume 372, Issue 2, Page(s) 277–286

    Abstract: Neuroblastomas are characterized by heterogeneous clinical behavior, from spontaneous regression or differentiation into a benign ganglioneuroma, to relentless progression despite aggressive, multimodality therapy. Indeed, neuroblastoma is unique among ... ...

    Abstract Neuroblastomas are characterized by heterogeneous clinical behavior, from spontaneous regression or differentiation into a benign ganglioneuroma, to relentless progression despite aggressive, multimodality therapy. Indeed, neuroblastoma is unique among human cancers in terms of its propensity to undergo spontaneous regression. The strongest evidence for this comes from the mass screening studies conducted in Japan, North America and Europe and it is most evident in infants with stage 4S disease. This propensity is associated with a pattern of genomic change characterized by whole chromosome gains rather than segmental chromosome changes but the mechanism(s) underlying spontaneous regression are currently a matter of speculation. There is evidence to support several possible mechanisms of spontaneous regression in neuroblastomas: (1) neurotrophin deprivation, (2) loss of telomerase activity, (3) humoral or cellular immunity and (4) alterations in epigenetic regulation and possibly other mechanisms. It is likely that a better understanding of the mechanisms of spontaneous regression will help to identify targeted therapeutic approaches for these tumors. The most easily targeted mechanism is the delayed activation of developmentally programmed cell death regulated by the tropomyosin receptor kinase A (TrkA) pathway. Pan-Trk inhibitors are currently in clinical trials and so Trk inhibition might be used as the first line of therapy in infants with biologically favorable tumors that require treatment. Alternative approaches consist of breaking immune tolerance to tumor antigens but approaches to telomere shortening or epigenetic regulation are not easily druggable. The different mechanisms of spontaneous neuroblastoma regression are reviewed here, along with possible therapeutic approaches.
    MeSH term(s) Early Detection of Cancer ; Genomics ; Humans ; Immunotherapy ; Neuroblastoma/diagnosis ; Neuroblastoma/genetics ; Neuroblastoma/pathology ; Neuroblastoma/therapy ; Remission Induction
    Language English
    Publishing date 2018-01-05
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 125067-x
    ISSN 1432-0878 ; 0302-766X
    ISSN (online) 1432-0878
    ISSN 0302-766X
    DOI 10.1007/s00441-017-2761-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Spontaneous regression of neuroblastoma

    Brodeur, GarrettM

    Cell and tissue research. 2018 May, v. 372, no. 2

    2018  

    Abstract: Neuroblastomas are characterized by heterogeneous clinical behavior, from spontaneous regression or differentiation into a benign ganglioneuroma, to relentless progression despite aggressive, multimodality therapy. Indeed, neuroblastoma is unique among ... ...

    Abstract Neuroblastomas are characterized by heterogeneous clinical behavior, from spontaneous regression or differentiation into a benign ganglioneuroma, to relentless progression despite aggressive, multimodality therapy. Indeed, neuroblastoma is unique among human cancers in terms of its propensity to undergo spontaneous regression. The strongest evidence for this comes from the mass screening studies conducted in Japan, North America and Europe and it is most evident in infants with stage 4S disease. This propensity is associated with a pattern of genomic change characterized by whole chromosome gains rather than segmental chromosome changes but the mechanism(s) underlying spontaneous regression are currently a matter of speculation. There is evidence to support several possible mechanisms of spontaneous regression in neuroblastomas: (1) neurotrophin deprivation, (2) loss of telomerase activity, (3) humoral or cellular immunity and (4) alterations in epigenetic regulation and possibly other mechanisms. It is likely that a better understanding of the mechanisms of spontaneous regression will help to identify targeted therapeutic approaches for these tumors. The most easily targeted mechanism is the delayed activation of developmentally programmed cell death regulated by the tropomyosin receptor kinase A (TrkA) pathway. Pan-Trk inhibitors are currently in clinical trials and so Trk inhibition might be used as the first line of therapy in infants with biologically favorable tumors that require treatment. Alternative approaches consist of breaking immune tolerance to tumor antigens but approaches to telomere shortening or epigenetic regulation are not easily druggable. The different mechanisms of spontaneous neuroblastoma regression are reviewed here, along with possible therapeutic approaches.
    Keywords antigens ; cell-mediated immunity ; clinical trials ; enzyme activity ; epigenetics ; genomics ; humans ; immunosuppression ; infants ; neoplasms ; programmed cell death ; screening ; telomerase ; telomeres ; therapeutics ; tropomyosins ; Europe ; Japan ; North America
    Language English
    Dates of publication 2018-05
    Size p. 277-286.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    Note Review
    ZDB-ID 125067-x
    ISSN 1432-0878 ; 0302-766X
    ISSN (online) 1432-0878
    ISSN 0302-766X
    DOI 10.1007/s00441-017-2761-2
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Adult-Onset Cancer Predisposition Syndromes in Children and Adolescents-To Test or not to Test?

    Kratz, Christian P / Lupo, Philip J / Zelley, Kristin / Schienda, Jaclyn / Nichols, Kim E / Stewart, Douglas R / Malkin, David / Brodeur, Garrett M / Maxwell, Kara / Plon, Sharon E / Walsh, Michael F

    Clinical cancer research : an official journal of the American Association for Cancer Research

    2024  Volume 30, Issue 9, Page(s) 1733–1738

    Abstract: With the increasing use of comprehensive germline genetic testing of children and adolescents with cancer, it has become evident that pathogenic variants (PV) in adult-onset cancer predisposition genes (aoCPG) underlying adult-onset cancer predisposition ...

    Abstract With the increasing use of comprehensive germline genetic testing of children and adolescents with cancer, it has become evident that pathogenic variants (PV) in adult-onset cancer predisposition genes (aoCPG) underlying adult-onset cancer predisposition syndromes, such as Lynch syndrome or hereditary breast and ovarian cancer, are enriched and reported in 1% to 2% of children and adolescents with cancer. However, the causal relationship between PVs in aoCPGs and childhood cancer is still under investigation. The best-studied examples include heterozygous PVs in mismatch repair genes associated with Lynch syndrome in children with mismatch repair deficient high-grade glioma, heterozygous PVs in BARD1 in childhood neuroblastoma, and heterozygous PVs in BRCA2 in children with rhabdomyosarcoma. The low penetrance for pediatric cancers is considered to result from a combination of the low baseline risk of cancer in childhood and the report of only a modest relative risk of disease in childhood. Therefore, we do not advise that healthy children empirically be tested for PVs in an aoCPG before adulthood outside a research study. However, germline panel testing is increasingly being performed in children and adolescents with cancer, and exome and genome sequencing may be offered more commonly in this population in the future. The precise pediatric cancer risks and spectra associated with PVs in aoCPGs, underlying cellular mechanisms and somatic mutational signatures, as well as treatment response, second neoplasm risks, and psycho-oncological aspects require further research.
    MeSH term(s) Humans ; Genetic Predisposition to Disease ; Adolescent ; Genetic Testing/methods ; Child ; Germ-Line Mutation ; Age of Onset ; Neoplastic Syndromes, Hereditary/genetics ; Neoplastic Syndromes, Hereditary/diagnosis ; Adult ; Neoplasms/genetics ; Neoplasms/diagnosis ; Female
    Language English
    Publishing date 2024-02-27
    Publishing country United States
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 1225457-5
    ISSN 1557-3265 ; 1078-0432
    ISSN (online) 1557-3265
    ISSN 1078-0432
    DOI 10.1158/1078-0432.CCR-23-3683
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Developmental and behavioral phenotypes of pediatric patients with PTEN hamartoma tumor syndrome.

    MacFarland, Suzanne P / Duvall, Melani / Kemajou, Raissa Tchetcho / Baldino, Sarah E / Zelley, Kristin / Black, Chelsea / Thomas, Allison / Thomas, Nina H / Ruffner, Melanie / Li, Yimei / Miller, Judith S / Brodeur, Garrett M / Shabason, Emily

    American journal of medical genetics. Part A

    2024  , Page(s) e63608

    Abstract: Our study characterized the neurodevelopmental spectrum of individuals with PTEN Hamartoma Tumor Syndrome (PHTS), a syndrome that predisposes to both neurodevelopmental phenotypes and cancer risk. We aim to better understand life-impacting ... ...

    Abstract Our study characterized the neurodevelopmental spectrum of individuals with PTEN Hamartoma Tumor Syndrome (PHTS), a syndrome that predisposes to both neurodevelopmental phenotypes and cancer risk. We aim to better understand life-impacting neurodevelopmental features of PHTS. Our study recruited 20 children/adolescents with PHTS, who were then administered assessments for autism spectrum disorder (ASD) and other neurocognitive measures, including assessment of IQ, executive and adaptive functioning, and health-related quality of life. Thirteen individuals (65%) were identified as having ASD, of which five were newly diagnosed during the study. Of those, ASD symptom severity was in the mild-moderate range for 77%. Overall, IQ was in the average range, with a mean of 92.61 (SD 24.45, p = 0.5), though there was a non-statistically significant trend toward individuals without ASD having a higher mean IQ (102.7 vs 82.3; p = 0.1). Subjects had significant impairment in processing speed (mean 75.38, SD 24.75, p < 0.05), decreased adaptive functioning skills across all domains, and a trend toward having more executive functioning problems. Individuals with PHTS are at increased risk of neurodevelopmental disorders, including ASD and impaired executive and adaptive functioning. Although clear guidelines exist for cancer surveillance for individuals with PHTS, additional guidelines and screening for neurodevelopmental disorders are warranted.
    Language English
    Publishing date 2024-03-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2108614-X
    ISSN 1552-4833 ; 0148-7299 ; 1552-4825
    ISSN (online) 1552-4833
    ISSN 0148-7299 ; 1552-4825
    DOI 10.1002/ajmg.a.63608
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: B-cell acute lymphoblastic leukemia and juvenile xanthogranuloma in a patient with

    Newman, Haley / MacFarland, Suzanne P / Brodeur, Garrett M / Olson, Timothy / Bhojwani, Deepa / Stokke, Jamie / Kovach, Alexandra E / Clark, Mary Egan / Luo, Minjie / Li, Marilyn / Shah, Amish / Hunger, Stephen P

    Haematologica

    2024  Volume 109, Issue 5, Page(s) 1624–1627

    MeSH term(s) Humans ; ETS Translocation Variant 6 Protein ; Proto-Oncogene Proteins c-ets/genetics ; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/genetics ; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/diagnosis ; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/complications ; Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/pathology ; Xanthogranuloma, Juvenile/genetics ; Xanthogranuloma, Juvenile/diagnosis ; Xanthogranuloma, Juvenile/complications ; Xanthogranuloma, Juvenile/pathology ; Thrombocytopenia/genetics ; Thrombocytopenia/diagnosis ; Thrombocytopenia/etiology ; Thrombocytopenia/pathology ; Repressor Proteins/genetics ; Male ; Female ; Genetic Predisposition to Disease
    Chemical Substances ETS Translocation Variant 6 Protein ; Proto-Oncogene Proteins c-ets ; Repressor Proteins
    Language English
    Publishing date 2024-05-01
    Publishing country Italy
    Document type Case Reports ; Letter ; Research Support, Non-U.S. Gov't ; Journal Article
    ZDB-ID 2333-4
    ISSN 1592-8721 ; 0017-6567 ; 0390-6078
    ISSN (online) 1592-8721
    ISSN 0017-6567 ; 0390-6078
    DOI 10.3324/haematol.2023.284151
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Knowing your ABCCs: novel functions of ABCC transporters.

    Brodeur, Garrett M

    Journal of the National Cancer Institute

    2011  Volume 103, Issue 16, Page(s) 1207–1208

    MeSH term(s) Animals ; Antineoplastic Agents/pharmacology ; Female ; Humans ; Male ; Multidrug Resistance-Associated Proteins/metabolism ; Neuroblastoma/drug therapy ; Neuroblastoma/metabolism ; Pyrazoles/pharmacology ; Pyrimidines/pharmacology
    Chemical Substances Antineoplastic Agents ; Multidrug Resistance-Associated Proteins ; Pyrazoles ; Pyrimidines ; reversan
    Language English
    Publishing date 2011-07-28
    Publishing country United States
    Document type Editorial ; Comment
    ZDB-ID 2992-0
    ISSN 1460-2105 ; 0027-8874 ; 0198-0157
    ISSN (online) 1460-2105
    ISSN 0027-8874 ; 0198-0157
    DOI 10.1093/jnci/djr277
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Getting into the AKT.

    Brodeur, Garrett M

    Journal of the National Cancer Institute

    2010  Volume 102, Issue 11, Page(s) 747–749

    MeSH term(s) Animals ; Antineoplastic Agents/pharmacology ; Antineoplastic Agents/therapeutic use ; Antineoplastic Combined Chemotherapy Protocols/therapeutic use ; Apoptosis/drug effects ; Cell Survival/drug effects ; Clinical Trials as Topic ; Disease Models, Animal ; Growth Inhibitors/pharmacology ; Growth Inhibitors/therapeutic use ; Humans ; Mice ; Neuroblastoma/drug therapy ; Neuroblastoma/genetics ; Neuroblastoma/metabolism ; Phosphorylcholine/analogs & derivatives ; Phosphorylcholine/pharmacology ; Phosphorylcholine/therapeutic use ; Proto-Oncogene Proteins c-akt/antagonists & inhibitors ; Proto-Oncogene Proteins c-akt/metabolism ; Receptor Protein-Tyrosine Kinases/drug effects ; Transplantation, Heterologous
    Chemical Substances Antineoplastic Agents ; Growth Inhibitors ; Phosphorylcholine (107-73-3) ; perifosine (2GWV496552) ; Receptor Protein-Tyrosine Kinases (EC 2.7.10.1) ; Proto-Oncogene Proteins c-akt (EC 2.7.11.1)
    Language English
    Publishing date 2010-05-12
    Publishing country United States
    Document type Comment ; Editorial
    ZDB-ID 2992-0
    ISSN 1460-2105 ; 0027-8874 ; 0198-0157
    ISSN (online) 1460-2105
    ISSN 0027-8874 ; 0198-0157
    DOI 10.1093/jnci/djq171
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: FOCAD Indel in a Family With Juvenile Polyposis Syndrome.

    MacFarland, Suzanne P / Xie, Hongbo / Dent, Maiah H / Greed, Bridgid / Plon, Sharon E / Scollon, Sarah R / Brodeur, Garrett M / Howe, James R

    Journal of pediatric gastroenterology and nutrition

    2022  Volume 75, Issue 1, Page(s) 56–58

    Abstract: Juvenile polyposis syndrome (JPS) is a childhood polyposis syndrome with up to a 50% lifetime risk of gastrointestinal cancer. Germline pathogenic variants in BMPR1A and SMAD4 are responsible for around 40% of cases of JPS, but for the majority of ... ...

    Abstract Juvenile polyposis syndrome (JPS) is a childhood polyposis syndrome with up to a 50% lifetime risk of gastrointestinal cancer. Germline pathogenic variants in BMPR1A and SMAD4 are responsible for around 40% of cases of JPS, but for the majority of individuals, the underlying genetic cause is unknown. We identified a family for which polyposis spanned four generations, and the proband had a clinical diagnosis of JPS. Next-generation sequencing was conducted, followed by Sanger sequencing confirmation. We identified an internal deletion of the FOCAD gene in all family members tested that altered the reading frame and is predicted to be pathogenic. We conclude that inactivation of the FOCAD gene is likely to cause JPS in this family.
    MeSH term(s) Child ; Gastrointestinal Neoplasms ; Germ-Line Mutation ; Humans ; Intestinal Polyposis/congenital ; Intestinal Polyposis/genetics ; Neoplastic Syndromes, Hereditary/genetics
    Chemical Substances FOCAD protein, human
    Language English
    Publishing date 2022-06-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 603201-1
    ISSN 1536-4801 ; 0277-2116
    ISSN (online) 1536-4801
    ISSN 0277-2116
    DOI 10.1097/MPG.0000000000003470
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Mechanisms of neuroblastoma regression.

    Brodeur, Garrett M / Bagatell, Rochelle

    Nature reviews. Clinical oncology

    2014  Volume 11, Issue 12, Page(s) 704–713

    Abstract: Recent genomic and biological studies of neuroblastoma have shed light on the dramatic heterogeneity in the clinical behaviour of this disease, which spans from spontaneous regression or differentiation in some patients, to relentless disease progression ...

    Abstract Recent genomic and biological studies of neuroblastoma have shed light on the dramatic heterogeneity in the clinical behaviour of this disease, which spans from spontaneous regression or differentiation in some patients, to relentless disease progression in others, despite intensive multimodality therapy. This evidence also suggests several possible mechanisms to explain the phenomena of spontaneous regression in neuroblastomas, including neurotrophin deprivation, humoral or cellular immunity, loss of telomerase activity and alterations in epigenetic regulation. A better understanding of the mechanisms of spontaneous regression might help to identify optimal therapeutic approaches for patients with these tumours. Currently, the most druggable mechanism is the delayed activation of developmentally programmed cell death regulated by the tropomyosin receptor kinase A pathway. Indeed, targeted therapy aimed at inhibiting neurotrophin receptors might be used in lieu of conventional chemotherapy or radiation in infants with biologically favourable tumours that require treatment. Alternative approaches consist of breaking immune tolerance to tumour antigens or activating neurotrophin receptor pathways to induce neuronal differentiation. These approaches are likely to be most effective against biologically favourable tumours, but they might also provide insights into treatment of biologically unfavourable tumours. We describe the different mechanisms of spontaneous neuroblastoma regression and the consequent therapeutic approaches.
    MeSH term(s) Epigenesis, Genetic/genetics ; Genomics ; Humans ; Neuroblastoma/genetics ; Signal Transduction
    Language English
    Publishing date 2014-10-21
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2491410-1
    ISSN 1759-4782 ; 1759-4774
    ISSN (online) 1759-4782
    ISSN 1759-4774
    DOI 10.1038/nrclinonc.2014.168
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Environment-Sensitive Polymeric Micelles Encapsulating SN-38 Potently Suppress Growth of Neuroblastoma Cells Exhibiting Intrinsic and Acquired Drug Resistance.

    Polunin, Yehor / Alferiev, Ivan S / Brodeur, Garrett M / Voronov, Andriy / Chorny, Michael

    ACS pharmacology & translational science

    2020  Volume 4, Issue 1, Page(s) 240–247

    Abstract: Conventional treatment approaches fail to provide durable control over aggressive malignancies due to intrinsic or acquired drug resistance characteristic of high-risk disease. SN-38, a potent camptothecin analog specifically targeting DNA topoisomerase ... ...

    Abstract Conventional treatment approaches fail to provide durable control over aggressive malignancies due to intrinsic or acquired drug resistance characteristic of high-risk disease. SN-38, a potent camptothecin analog specifically targeting DNA topoisomerase I cleavage complexes, has shown promise in preclinical studies against aggressive solid tumors. However, its clinical utility is limited by inadequate solubility in pharmaceutically acceptable vehicles and by poor chemical and metabolic stability. Micelles formulated from amphiphilic invertible polymers (AIPs) can address these issues by concomitantly enabling solubilization of water-insoluble molecular cargoes and by protecting chemically labile agents from inactivation. Furthermore, the inversion of the AIP and disruption of the carrier-drug complexes triggered by contact with cell membranes makes it possible to deliver the therapeutic payload into the cell interior without compromising its biological activity. In the present study, we characterized a novel AIP-based micellar formulation of SN-38 and evaluated its growth inhibitory effect on neuroblastoma (NB) cells derived either at diagnosis or at relapse after intensive chemoradiotherapy. Colloidally stable, drug-loaded micellar assemblies with a uniform <100 nm size were prepared using an AIP consisting of alternating blocks of poly(ethylene glycol) and polytetrahydrofuran (PEG
    Language English
    Publishing date 2020-12-04
    Publishing country United States
    Document type Journal Article
    ISSN 2575-9108
    ISSN (online) 2575-9108
    DOI 10.1021/acsptsci.0c00182
    Database MEDical Literature Analysis and Retrieval System OnLINE

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