* Wall Street slips; world equity index heads for 4th weekly loss
* Sentiment fragile ahead of Fed meeting next week
* Dollar heads for worst week since early 2010 vs yen
By Wanfeng Zhou
NEW YORK, June 14 (Reuters) - U.S. stocks fell and the dollar lost ground for a fourth straight session against the yen on Friday, extending a recent retreat sparked by worries that major central banks may soon start scaling back stimulative policies.
But European and Asian share markets held gains, helping keep the MSCI world index 0.3 percent higher on the day. The index, however, was on pace for a fourth straight week of losses.
Jitters over the longevity of monetary policy around the world have roiled markets recently, and nerves were stretched further this week when the Bank of Japan decided to hold policy steady.
The concerns have fueled a selloff in global equities, emerging markets, risky bonds and commodities, which have been buoyed by central bank liquidity, while driving the safe-haven yen sharply higher.
Wall Street stocks fell as investors took profits after the S&P 500 recorded its second best day of the year on Thursday. The decline was led by weakness in the financial and energy sectors, after the market rallied more than 1 percent on stronger-than-expected U.S. economic data.
The Dow Jones industrial average lost 75.39 points, or 0.50 percent, at 15,100.69. The Standard & Poor's 500 Index was down 5.97 points, or 0.36 percent, at 1,630.39. The Nasdaq Composite Index was down 16.68 points, or 0.48 percent, at 3,428.70.
The dollar continued its slide versus the yen, heading for a weekly loss of 3.3 percent, the biggest since July 2009.
Attention is shifting to a meeting of Federal Reserve policymakers next week, which would shed light on when the U.S. central bank plans to scale back its monthly $85 billion bond purchase program.
"Markets are looking at next week's Fed meeting to be the big driver in the short-term," said Kim Forrest, senior equity research analyst at Fort Pitt Capital Group in Pittsburgh.
Fed chief Ben "Bernanke has really increased the amount of transparency in the Fed's thinking," said Forrest. "This isn't going to be a jack-in-the-box surprise Fed; it's going to be a Fed that clearly indicates what it's going to do. That's why people are looking to this meeting in particular."
U.S. data on Friday showed consumer sentiment edged off a six-year high in June while manufacturing output picked up a bit last month, suggesting the economy remained on a moderate growth path. Other data showed wholesale prices rose more than expected in May but underlying inflation pressures remained muted.
Top European stocks climbed 0.2 percent, tracking a rebound in Japanese and Asian shares.
Emerging market equities as measured by MSCI rose 1.2 percent on Friday, although they were headed for a fifth consecutive week of losses.
Despite climbing 2 percent on Friday, Japan's Nikkei is nursing losses of more than 15 percent since mid-May. The volatility in stocks has driven a sharp rebound in the yen. The dollar is headed for its worst week since early 2010 against the yen.
"The yen has proved to be investors' go-to safe haven to ride out global stock market volatility," said Joe Manimbo, senior market analyst at Western Union Business Solutions in Washington D.C.
"The uncertainty has prompted investors to exit recently overcrowded plays like betting on the dollar and Japan's Nikkei stock index and against the yen," he said. "With that play now in reverse, the yen has steadily been squeezed higher."
The dollar fell 0.7 percent to 94.67 yen. The euro lost 1 percent to 126.30 yen. Against the dollar, it slipped 0.2 percent to $1.3347.
The benchmark 10-year U.S. Treasury note was up 11/32, the yield at 2.1098 percent.
Oil prices rose more than 1 percent on concern an escalation in Syria's civil war could drag in other countries and plunge the whole oil-producing region into conflict.
Brent crude rose $1.01 to $105.96 a barrel, while U.S. crude gained 92 cents to $97.61 a barrel.
Spot gold rose slightly to $1,389 an ounce.