TAp73およびDNp73の統合的マルチモーダルプロファイリングにより、がんプログラムにおけるアイソフォーム特異的な転写調節因子ランドスケープが明らかに
Steffen Möller1, Alf Spitschak1, Nico Murr1
1Institute of Experimental Gene Therapy and Cancer Research, Rostock University Medical Center, 18057 Rostock, Germany.
Biomolecules
|January 28, 2026
まとめ
p73転写因子には、がんにおいて相反する役割を持つアイソフォームが存在する。本研究では、それらのDNA結合と共同調節因子をマッピングし、異なる機能とAI駆動型がん療法の可能性を明らかにする。
科学分野:
- がん生物学
- 分子腫瘍学
- エピジェネティクス
背景:
- p73転写因子(TF)は、がん進行において相反する役割を持つ多様なアイソフォームを示す。
- DNp73はがん幹細胞性と転移を促進する一方、腫瘍抑制性のTAp73アイソフォームは、逆説的にがんの増殖を促進する可能性がある。
- 同一のDNA結合ドメインを持つp73アイソフォームがどのように異なる機能的結果をもたらすかを理解することは極めて重要である。
主な方法:
- メラノーマ細胞におけるTAp73αおよびDNp73βのゲノムワイドDNA結合をプロファイリングするためにCUT&RUNアッセイを利用した。
- coTF同定のためにJASPARデータベース、トランスクリプトーム、プロテオームデータを統合した。
- 臨床転帰との関連を調べるために患者生存率および遺伝子発現データを解析した。
結論:
- メラノーマにおけるp73アイソフォーム特異的なDNA結合およびcoTFリクルートメントの包括的な参照マップを作成した。
- p73アイソフォームががん進行に影響を与える異なる転写プログラムを調整することを示した。
- がんにおけるp73アイソフォームの影響をモデル化するためのワークフローを確立し、AIベースの個別化療法への応用可能性を示した。
関連する概念動画
Integration by Parts: Indefinite Integrals
160
Integration by parts is a fundamental technique in calculus for evaluating integrals involving the product of two functions. It is particularly useful when direct integration is not feasible. The method is based on the product rule for differentiation, which states that the derivative of a product equals the derivative of the first function times the second, plus the first function times the derivative of the second. By integrating this identity and rearranging terms, the integration by parts...
160
Integration by Parts: Definite Integrals
72
Definite integrals involving the product of two functions over a fixed interval can be evaluated using integration by parts. This method rewrites the integral as the difference of a product evaluated at the endpoints and a remaining definite integral that is often simpler to compute.A representative example is the definite integral of the inverse tangent function. Since there is no direct integration formula for arctan x, the integrand is rewritten as a product of arctan x and the...
72
Ribosome Profiling
4.2K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
4.2K
The Integrated Rate Law: The Dependence of Concentration on Time
41.3K
While the differential rate law relates the rate and concentrations of reactants, a second form of rate law called the integrated rate law relates concentrations of reactants and time. Integrated rate laws can be used to determine the amount of reactant or product present after a period of time or to estimate the time required for a reaction to proceed to a certain extent. For example, an integrated rate law helps determine the length of time a radioactive material must be stored for its...
41.3K
Conservative Site-specific Recombination and Phase Variation
6.8K
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
The recognition sites for Cre recombinase called LoxP...
6.8K
Integrator and Differentiator
1.4K
Op-amp circuits have significant applications in various fields, including automotive engineering. One such application is cruise control systems in cars, where op-amp circuits are integral for maintaining a constant speed. In these systems, op-amps function as both integrators and differentiators.
An integrator within an op-amp circuit produces an output directly proportional to the integral of the input signal. This is achieved by replacing the feedback resistor in a typical inverting...
An integrator within an op-amp circuit produces an output directly proportional to the integral of the input signal. This is achieved by replacing the feedback resistor in a typical inverting...
1.4K


