MTR denied, whether the applicant can file any further appeal without involvement of the foreign employer

H1b petition filed in April 15 was selected in lottery. This information was passed to me by my American employer through mail dt. 30/04/15. During September 15, I was informed by the said employer that RFE has been issued in my case. During February 16, I received information from the said company that RFE has been denied, they filed MTR.
Two days before I received information from the said employer that MTR has been denied by USICS & they are not going to file any further appeal.
I want to know from you whether I can file the appeal any further without involvement of my employer.

Can anybody answer my question