[Role of STAT3 in Resistance of Non-small Cell Lung Cancer]

Sibo Sun1, Shidai Jin1, Renhua Guo1

  • 1Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.

Insights

The inflammatory tumor microenvironment drives non-small cell lung cancer (NSCLC) drug resistance. Targeting signal transducer and activator of transcription 3 (STAT3) may reverse this resistance, offering new therapeutic strategies.

Area of Science:

  • Oncology
  • Molecular Biology
  • Immunology

Background:

  • The tumor microenvironment's inflammatory state is crucial in non-small cell lung cancer (NSCLC) drug resistance.
  • Signal transducer and activator of transcription 3 (STAT3) is a key pathway linking inflammation and tumor progression.
  • Activated STAT3 contributes to genetic instability and therapeutic resistance in cancer cells.

Purpose of the Study:

  • To review the role of STAT3 in acquired drug resistance in NSCLC.
  • To explore STAT3 as a potential therapeutic target for overcoming drug resistance.
  • To provide a theoretical basis for novel clinical strategies against NSCLC drug resistance.

Main Methods:

  • Literature review of studies on STAT3 and NSCLC drug resistance.
  • Analysis of the molecular mechanisms by which STAT3 influences therapeutic resistance.
  • Synthesis of current research to identify STAT3 as a target.

Main Results:

  • STAT3 activation is implicated in various resistance mechanisms in NSCLC.
  • Targeting STAT3 demonstrates potential for reversing acquired drug resistance.
  • Understanding STAT3's role offers insights into overcoming treatment failure.

Conclusions:

  • STAT3 is a significant factor in NSCLC acquired drug resistance.
  • STAT3 inhibition presents a promising strategy for enhancing NSCLC treatment efficacy.
  • Further research into STAT3-targeted therapies is warranted for clinical application.

Related Concept Videos

Treatment Resistant Cancers02:56

Treatment Resistant Cancers

Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.7K
Role of Myosin in Cell Migration01:18

Role of Myosin in Cell Migration

Myosins are multimeric motor proteins involved in various cellular processes such as migration, adhesion, and proliferation. Myosin II is the most common type in animal cells, which binds and cross-links actin filaments.
Myosin II  is a hexamer comprising two heavy chains with globular heads and coiled-coil tails, two regulatory light chains, and two essential light chains. The ATPase sites on the myosin heads hydrolyze ATP, and the released phosphate generates the force for contraction....
3.2K
Lung Capacity01:47

Lung Capacity

The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
56.1K
Role of Microtubules in Cell Wall Deposition01:02

Role of Microtubules in Cell Wall Deposition

Microtubules are small hollow tubes in eukaryotic cells. The cell wall microtubules are polymerized dimers of two globular proteins, α-tubulin and β-tubulin, two globular proteins. With a diameter of about 25 nm, microtubules are the widest components of the cytoskeleton. They help the cell resist compression and provide a track along which vesicles move through the cell or pull replicated chromosomes to opposite ends of a dividing cell. Microtubules go through quick cycles of...
3.0K
The Role of Actin and Myosin in Non-muscle Cells01:10

The Role of Actin and Myosin in Non-muscle Cells

Actin and myosin or actomyosin filaments also play a significant role in cells other than those involved in muscle contraction (which occurs within the sarcomere of muscle cells). The mechanism of non-muscle cell contractile bundles was first observed in Dictyostelium and Acanthamoeba. In non-muscle cells, two bundles are commonly found: stress fibers and actomyosin adherence belts. These contractile bundles are smaller and less organized than the ones found in muscle cells. They  are held...
4.7K
Resistivity01:22

Resistivity

When a voltage is applied to a conductor, an electrical field is generated, and charges in the conductor feel the force due to the electrical field. The current density that results depends on the electrical field and the properties of the material. In some materials, including metals at a given temperature, the current density is approximately proportional to the electrical field. In these cases, the current density can be modeled as:
4.4K