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		<title>Excess cysteine releases iron, overwhelming mitochondria and killing cells</title>
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		<pubDate>Mon, 26 Oct 2026 21:28:36 +0000</pubDate>
				<category><![CDATA[Biology]]></category>
		<category><![CDATA[Cell Death]]></category>
		<category><![CDATA[cellular redox]]></category>
		<category><![CDATA[CRISPR screen]]></category>
		<category><![CDATA[cysteine toxicity]]></category>
		<category><![CDATA[discover]]></category>
		<category><![CDATA[ferritin]]></category>
		<category><![CDATA[glutathione]]></category>
		<category><![CDATA[Iron Metabolism]]></category>
		<category><![CDATA[iron-sulfur proteins]]></category>
		<category><![CDATA[Metabolic regulation]]></category>
		<category><![CDATA[mitochondria]]></category>
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					<description><![CDATA[A CRISPR screen and laboratory experiments show that excess cysteine releases iron from ferritin, damages mitochondria and triggers cell death.]]></description>
		
		
		
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