Publications by authors named "Matias I Hepp"

Radiata pine bark is a widely available organic waste, requiring alternative uses due to its environmental impact on soil, fauna, and forest fires. Pine bark waxes could be used as cosmetic substitutes, but their toxicity requires evaluation since pine bark may contain toxic substances or xenobiotics, depending on the extraction process. This study evaluates the toxicity of radiata pine bark waxes obtained through various extraction methods on human skin cells grown in vitro.

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SALL2/Sall2 is a transcription factor associated with development, neuronal differentiation, and cancer. Interestingly, deficiency leads to failure of the optic fissure closure and neurite outgrowth, suggesting a positive role for SALL2/Sall2 in cell migration. However, in some cancer cells, deficiency is associated with increased cell migration.

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Article Synopsis
  • Diverse proteins are involved in chromatin dynamics, with the HMG box protein Hmo1 and linker histone Hho1 being key players in yeast Saccharomyces cerevisiae.
  • While Hmo1 aligns with HMGB family characteristics, Hho1 exhibits mixed traits, complicating its classification as a linker histone.
  • Comparative analyses reveal that both proteins interact with chromatin remodeling complexes and affect nucleosome activity differently, suggesting Hmo1 and Hho1 play distinct roles in transcriptional regulation.
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The SALL2 transcription factor, an evolutionarily conserved gene through vertebrates, is involved in normal development and neuronal differentiation. In disease, SALL2 is associated with eye, kidney, and brain disorders, but mainly is related to cancer. Some studies support a tumor suppressor role and others an oncogenic role for SALL2, which seems to depend on the cancer type.

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Cancer is one of the leading causes of death worldwide. The success rate of conventional anticancer therapeutic approaches such as chemotherapy is limited by the non-specific toxicity and low specificity towards specific tumors, which are highly dependent on the mutational burden present on each patient. Similarly, targeted therapies have proven to induce resistance in numerous malignancies.

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SALL2 is a transcription factor involved in development and disease. Deregulation of SALL2 has been associated with cancer, suggesting that it plays a role in the disease. However, how SALL2 is regulated and why is deregulated in cancer remain poorly understood.

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SALL2 is a poorly characterized transcription factor that belongs to the Spalt-like family involved in development. Mutations on SALL2 have been associated with ocular coloboma and cancer. In cancers, SALL2 is deregulated and is proposed as a tumor suppressor in ovarian cancer.

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SALL2, also known as Spalt-like transcription factor 2, is a member of the SALL family of transcription factors involved in development and conserved through evolution. Since its identification in 1996, findings indicate that SALL2 plays a role in neurogenesis, neuronal differentiation and eye development. Consistently, SALL2 deficiency associates with neural tube defects and coloboma, a congenital eye disease.

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Diverse chromatin modifiers are involved in regulation of gene expression at the level of transcriptional regulation. Among these modifiers are ATP-dependent chromatin remodelers, where the SWI/SNF complex is the founding member. It has been observed that High Mobility Group (HMG) proteins can influence the activity of a number of these chromatin remodelers.

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The regulation of gene expression at the level of transcription involves the concerted action of several proteins and protein complexes committed to dynamically alter the surrounding chromatin environment of a gene being activated or repressed. ATP-dependent chromatin remodeling complexes are key factors in chromatin remodeling, and the SWI/SNF complex is the founding member. While many studies have linked the action of these complexes to specific transcriptional regulation of a large number of genes and much is known about their catalytic activity, less is known about the nuclear elements that can enhance or modulate their activity.

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SALL2- a member of the Spalt gene family- is a poorly characterized transcription factor found deregulated in various cancers, which suggests it plays a role in the disease. We previously identified SALL2 as a novel interacting protein of neurotrophin receptors and showed that it plays a role in neuronal function, which does not necessarily explain why or how SALL2 is deregulated in cancer. Previous evidences indicate that SALL2 gene is regulated by the WT1 and AP4 transcription factors.

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Transcription factor C/EBPβ is involved in several cellular processes, such as proliferation, differentiation, and energy metabolism. This factor exerts its activity through recruitment of different proteins or protein complexes, including the ATP-dependent chromatin remodeling complex SWI/SNF. The C/EBPβ protein is found as three major isoforms, C/EBPβ1, -2, and -3.

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