The mass-metallicity relation (MZR) and its evolution with redshift are useful tools to understand galaxy formation. Most of the information at our disposal on them comes from field galaxies. In this work, we study the evolution in redshift of the MZR by using star-forming galaxies of the AC114 galaxy cluster located at z~0.3. We study the role of galaxy clusters in the MZR. We found that the slope of the MZR is shallower than the constructed with field galaxies at the same redshift. Radial profiles and star-formation rates of the galaxy cluster suggest that the change of the slope can be the result of quenching when galaxies interact with their neighbors and/or the intra-cluster medium.
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