Results 101 to 110 of about 273,925 (284)

Combinatorial strategy using protein kinase inhibitors and a cytotoxic compound for highly resistant glioblastoma cells : "in vitro studies" [PDF]

open access: yes, 2007
Glioblastoma multiforme (GBM) is the most frequent and the most aggesssive malignant neoplasm of the human central nervous system (CNS), with a median survival of less than one year. These neoplasms are radio- and chemo-resistant, and are highly invasive,
Failly, Mike
core   +1 more source

Transcriptional profiling of circulating extracellular vesicles from prebiopsy prostate cancer patients

open access: yesMolecular Oncology, EarlyView.
RNA profiling of circulating extracellular vesicles (EVs) from blood samples of men undergoing prostate biopsy identifies transcripts associated with clinically significant prostate cancer. Integrative analysis with public tumor datasets links EV‐derived gene signatures to tumor stage and progression‐free survival, highlighting CASP3, XRCC2, and RIT1 ...
Stefan Werner   +14 more
wiley   +1 more source

Is it time for a new paradigm for systemic cancer treatment? Lessons from a century of cancer chemotherapy

open access: yesFrontiers in Pharmacology, 2013
U.S. SEER data for age-adjusted mortality rates for all cancers combined for all races show only a modest overall 13% decline over the past 35 years. Moreover, the greatest contributor to cancer mortality is treatment resistant metastatic disease.
Sarah eCrawford
doaj   +1 more source

Drug resistance:Still a daunting challenge to the successful treatment of AML

open access: yes, 2012
Resistance to chemotherapy remains a challenging issue for patients and their physicians. P-glycoprotein (Pgp, MDR1, ABCB1), as well as a family of structurally and functionally related proteins, are plasma membrane transporters able to efflux a variety ...
Gottesman, M.M.   +5 more
core   +1 more source

Immunohistochemical evaluation of multidrug resistance markers in feline mammary carcinomas

open access: yes, 2020
O tumor mamário é a terceira neoplasia mais incidente na espécie felina, cerca de 95% dos tumores mamários são malignos e a doença tende a apresentar um comportamento altamente agressivo. O tratamento de eleição para essas neoplasias é a cirurgia radical,
Manoel, Verônica Correia
core   +1 more source

Adaptor protein CIN85 potentiates the motility of osteosarcoma cells via the Akt/mTOR and MMP2‐COL3A1 axis

open access: yesMolecular Oncology, EarlyView.
CIN85 is highly expressed in osteosarcoma, particularly in metastatic lesions. Its overexpression increases cell migration and Matrigel invasion, while silencing CIN85 suppresses these behaviors. Transcriptome analysis shows that CIN85 regulates MMP2, COL3A1, and Akt/mTOR signaling. Targeting these pathways reverses CIN85‐induced motility, highlighting
Iryna Horak   +10 more
wiley   +1 more source

ESR1 methylation and ESR1 mutations in circulating tumor cells (CTCs) and paired plasma‐cfDNA of advanced breast cancer patients: A feasibility proof‐of‐concept study

open access: yesMolecular Oncology, EarlyView.
Circulating tumor cells (CTCs) and plasma cell‐free DNA (cfDNA) were analyzed to detect ESR1 mutations and methylation in patients with advanced breast cancer. CTC‐derived DNA showed higher sensitivity for mutation detection and revealed complementary genetic and epigenetic alterations, highlighting the added value of CTC analysis for understanding ...
Dimitra Stergiopoulou   +12 more
wiley   +1 more source

Proteasome inhibitor, ixazomib prevents topoisomerase‐I degradation and reverses irinotecan resistance in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Ixazomib inhibits proteasome‐mediated degradation of topoisomerase I induced by irinotecan, thereby restoring drug sensitivity and promoting tumor cell death in colorectal cancer. Irinotecan, a topoisomerase I (topoI) inhibitor, is widely used for colorectal cancer, but resistance remains a major clinical challenge.
Yuho Ebata   +10 more
wiley   +1 more source

P03 | BONE MARROW MICROENVIRONMENT-DEPENDENT INDUCTION OF mTORC1 CAUSES THERAPY RESISTANCE IN MULTIPLE MYELOMA

open access: yesHaematologica
Multiple myeloma (MM) is a bone marrow neoplasm marked by the clonal expansion of terminally differentiated B cells. The bone marrow (BM) niche promotes drug resistance and disease progression through soluble factors and cell-cell contact.
M.H. Janssens   +4 more
doaj   +1 more source

Combining chloroquine with RAD001 inhibits tumor growth in a NEN mouse model

open access: yes, 2018
Patients with neuroendocrine neoplasms (NENs) often require systemic treatment, which is frequently limited by the emergence of drug resistance. mTOR inhibitors (mTORi), such as RAD001 (everolimus), have been shown to inhibit neoplasm progression.
Simona Grozinsky-Glasberg   +4 more
core   +1 more source

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