TOKYO, April 22 (Reuters) - Japanese shares closed lower on Friday for the first time in four sessions, as they tracked Wall Street's overnight weakness following the U.S. central bank's views on interest rates, while Toshiba soared after it opened doors for a buyout.

The Nikkei share average ended 1.63% lower at 27,105.26 and the broader Topix was down 1.19% at 1,905.15. Technology and growth stocks led the retreat.

For the week, the Nikkei shed 0.04%, while the Topix was up 0.47%.

Toshiba jumped 4.65% after the embattled Japanese conglomerate said it would solicit deal offers, including on a potential buyout.

Meanwhile, Wall Street ended lower overnight, with the Nasdaq dropping more than 2%, as investors reacted to U.S. Federal Reserve officials, including Chair Jerome Powell, dropping hints of a half-point interest rate increase.

"The Japanese market reacted too much. Investors should have already factored in rising U.S. interest rates," said Jun Morita, general manager of the research department at Chibagin Asset Management.

"On the other hand, it is hard to make positive bids before the corporate earnings season kicks off."

Chip-making equipment maker Tokyo Electron led declines on the Nikkei, falling 2.1%. Uniqlo clothing shop operator Fast Retailing lost 2.7% and technology investor SoftBank Group dropped 3.01%.

All but three sectors among the Tokyo Stock Exchange's 33 industry sub-indexes fell.

The insurance sector gained 0.91% as U.S. Treasury yields rose.

Airlines gained 0.63% after United Airlines Holdings and American Airlines Group predicted a return to profit in the current quarter due to booming travel demand.

Railways gained 0.01%.

Shionogi & Co gained 1.06% after a report that the U.S. government is in talks with the Japanese drugmaker to acquire supplies of its experimental COVID-19 treatment. (Reporting by Junko Fujita; Editing by Subhranshu Sahu and Uttaresh.V)