DUSP1 and colorectal cancer: Mesalazine Regulates &lt;i&gt;DUSP1&lt;/i&gt;, &lt;i&gt;DUSP4&lt;/i&gt;, and &lt;i&gt;DUSP5&lt;/i&gt; Expression in Colorectal Cancer: In Vitro and Bioinformatic Evidence.