Retraction

    Insights

    This study on ovarian cancer metastasis has been retracted due to significant flaws. The findings regarding the CXCL12-CXCR4 axis and AMD3100 are now considered invalid.

    Area of Science:

    • Oncology
    • Molecular Biology
    • Cell Biology

    Context:

    • The CXCL12-CXCR4 axis is implicated in ovarian cancer progression.
    • Targeting this axis with AMD3100 was investigated for therapeutic potential.

    Purpose:

    • To evaluate the role of the CXCL12-CXCR4 axis in ovarian cancer metastasis.
    • To assess the efficacy of AMD3100 in inhibiting tumor cell migration and invasion.

    Summary:

    • The article investigated the involvement of the CXCL12-CXCR4 signaling pathway in ovarian cancer metastasis.
    • It explored the potential of blocking this axis with AMD3100 to suppress tumor cell motility.
    • However, the study has been retracted due to identified flaws and inconsistencies.

    Impact:

    • The retraction invalidates previous conclusions regarding the CXCL12-CXCR4 axis in ovarian cancer.
    • This necessitates a re-evaluation of therapeutic strategies targeting this pathway.

    Related Concept Videos

    Clot Retraction and Fibrinolysis01:16

    Clot Retraction and Fibrinolysis

    After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
    7.5K
    Somatic Spinal Reflexes01:22

    Somatic Spinal Reflexes

    Somatic spinal reflexes are rapid, involuntary muscular responses to external stimuli that involve the somatic musculature and the spinal cord.
    One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...
    3.2K
    Cell Motility through Blebbing01:16

    Cell Motility through Blebbing

    Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases.
    Blebbing Through the Matrix
    In multicellular...
    2.2K
    Relaxation of Skeletal Muscles01:29

    Relaxation of Skeletal Muscles

    The period of muscle contraction primarily influences the duration of stimulation at the neuromuscular junction (NMJ), the presence of free calcium ions in the sarcoplasm, and the availability of energy or ATP to support contractions.
    When an action potential reaches the axon terminal, it depolarizes the membrane and opens voltage-gated sodium channels. Sodium ions enter the cell, further depolarizing the presynaptic membrane. This depolarization causes voltage-gated calcium channels to open....
    4.7K
    Types of Membrane Protrusions01:28

    Types of Membrane Protrusions

    The protrusion of the cell surface is an initial step for several cellular processes, including cell migration, phagocytosis, and neurite outgrowth. These membrane protrusions are a result of cytoskeletal rearrangement. The most  widely observed cell protrusions include lamellipodia, pseudopodia, filopodia, microvilli, invadopodia, and podosomes. These protrusions can be of two types — static or dynamic.
    The microvilli, an example of stable protrusions, are finger-like projections...
    3.2K
    GPCR Desensitization01:12

    GPCR Desensitization

    G protein-coupled receptor (GPCR) signaling plays a crucial role in cell functioning. GPCR desensitization is an equally essential process. It allows cells to respond to changing environments and regain sensitivity to new stimuli while preventing unnecessary stimulation when no longer needed. Prolonged exposure to stimuli leads to GPCR desensitization. It involves blocking the receptors from binding and activating additional G proteins. This inhibits activation of downstream effectors, thereby...
    6.9K