[(UITableViewCell *)[(UITableView *)self cellForRowAtIndexPath:nowIndex]
will give you uitableviewcell. But I am not sure what exactly you are asking for! Because you have this code and still you asking how to get uitableviewcell. Some more information will help to answer you 🙂
ADD: Here is an alternate syntax that achieves the same thing without the cast.
UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:nowIndex];