With ovarian cancer the immune cells that are trying to fight it end up actually turning off. This is what makes ovarian cancer so dangerous. A recent study is showing that disarming a gene named XBP1 is rearming immune cells. By doing this in mice, they have been able to see some promising results. This progress has been shown through a noticeable reduction in tumor progression and burden.
With this exciting news there is still a lot to do. Replicating results in other animals is going to be the next step in order to establish some statistical significance and a wider sample size. Further analysis is going to have to be done to determine what is actually being done on a molecular level when these tumors see reduced progression. Right now there is a surface level view of possible results, but seeing why exactly this is happening is how this research goes further.
The entire article is very in depth and covers a multitude of factors and variables in these tests. If you want to read the nitty-gritty then I suggest you check it out here.