Array
(
    [id] => chatcmpl-AipZ6K2qACRVQrATBgKaszqwcuuCg
    [object] => chat.completion
    [created] => 1735248012
    [model] => gpt-4o-mini-2024-07-18
    [choices] => Array
        (
            [0] => Array
                (
                    [index] => 0
                    [message] => Array
                        (
                            [role] => assistant
                            [content] => *! CD8 T cells play a crucial role in fighting tumors but often become dysfunctional, a state known as T cell exhaustion, due to prolonged stimulation in the tumor microenvironment (TME). *! Exhausted T cells show increased levels of inhibitory molecules and decreased functional abilities, partly because of the TME's lack of nutrients and oxygen and high lactic acid levels. *! The study reveals that exhausted T cells elevate the expression of MCT11, a transporter that helps them take up lactic acid; blocking this transporter improved T cell function and reduced tumor growth in mice.
                            [refusal] => 
                        )

                    [logprobs] => 
                    [finish_reason] => stop
                )

        )

    [usage] => Array
        (
            [prompt_tokens] => 268
            [completion_tokens] => 118
            [total_tokens] => 386
            [prompt_tokens_details] => Array
                (
                    [cached_tokens] => 0
                    [audio_tokens] => 0
                )

            [completion_tokens_details] => Array
                (
                    [reasoning_tokens] => 0
                    [audio_tokens] => 0
                    [accepted_prediction_tokens] => 0
                    [rejected_prediction_tokens] => 0
                )

        )

    [system_fingerprint] => fp_0aa8d3e20b
)