Homeodomain Protein Transforming Growth Factor Beta-Induced Factor 2 Like, X-Linked Function in Colon Adenocarcinoma

Abolfazl Akbari1, Shahram Agah, Mansour Heidari

  • 1Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran.

Insights

Transforming growth factor beta-induced factor 2 like, X-linked (TGIF2LX) acts as a tumor suppressor by inhibiting colon adenocarcinoma cell proliferation and angiogenesis. This finding suggests TGIF2LX as a potential target for colon cancer gene therapy.

Area of Science:

  • Molecular Biology
  • Oncology
  • Genetics

Background:

  • TGIF2LX (transforming growth factor beta-induced factor 2 like, X-linked) is a homeodomain protein involved in negative regulation of cell signaling.
  • Colon adenocarcinoma is a significant health concern, necessitating research into novel therapeutic targets.

Purpose of the Study:

  • To investigate the functional role of TGIF2LX in colon adenocarcinoma cells.
  • To explore TGIF2LX as a potential therapeutic target for colon cancer.

Main Methods:

  • Overexpression of wild-type TGIF2LX in SW48 colon adenocarcinoma cells.
  • Assessment of cell proliferation using MTT and BrdU assays.
  • In vivo tumor xenograft model in nude mice with immunohistochemical analysis for Ki-67 and CD34.
  • In silico analysis to predict TGIF2LX protein interactions.

Main Results:

  • TGIF2LX overexpression significantly inhibited colon tumor cell proliferation and angiogenesis (P<0.05).
  • In silico analysis predicted interactions between TGIF2LX and proteins crucial for cellular development.
  • TGIF2LX demonstrated potential as a transcription factor influencing tumor growth.

Conclusions:

  • TGIF2LX functions as a tumor suppressor in colon adenocarcinoma.
  • The findings elucidate molecular mechanisms of TGIF2LX's action in colon cancer.
  • TGIF2LX represents a promising candidate for future colon cancer gene-based therapeutic strategies.

Related Concept Videos

TGF - &#946; Signaling Pathway01:16

TGF - β Signaling Pathway

The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
10.7K
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
5.3K
Master Transcription Regulators02:23

Master Transcription Regulators

Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a  complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
7.9K
Cadherins in Tissue Organization01:19

Cadherins in Tissue Organization

The cadherins are a superfamily of cell adhesion molecules comprising over 180 variants, with specific tissues expressing a particular combination of cadherin types. Cadherins generally exhibit homophilic binding; i.e., cadherins on one cell bind to cadherins of the same or closely related type on another cell. Thus, cells of the same type have a specific affinity to bind to each other and sort themselves into clusters to form tissues.
Cell Sorting During Development
Cell sorting plays an...
4.3K
General Transcription Factors01:30

General Transcription Factors

Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
7.3K
Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
3.8K