Abstract: The microfluidic chip includes; at least one inlet channel connected to at least one well, each well being associated with an outlet channel, at least one analysis chamber connected to at least one well, an analysis surface including collection elements capturing biomarkers present in the liquid originating from the well and representative of the cellular response of a biological sample contained in the well. A liquid flow circulates from the well to the analysis surface including the collection elements. The liquid flowrate is between 0.1 ?L/min and 2 mL/min and flows in laminar manner in the analysis chamber. The chip forms part of a microfluidic lab-on-chip provided with a flow generator applying several different liquids.