Given a passage with a context and an answer, construct a question on the basis of the information present in the passage. Construct the question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) it answer uses text phrases from the passage. Avoid creating questions that (i) can't be answered correctly without actually understanding the passage and (ii) uses the same words or phrases given in the passage.

Context: The authors previously described the complete regression of established neuroblastoma (NB) by the adoptive transfer of syngeneic interleukin-12 transduced dendritic cells (DC) from naive mice. However, some malignancies, like NB, abrogate DC immunostimulation. The authors hypothesize that IL-12 transduction of DC from NB-bearing mice will have the same antitumor properties.', 'A/J mice (n = 32) with established NB received peritumoral injection of 1 x 10(6) DC (DC, IL-12 DC, day 7 IL-12 DC or day 14 IL-12 DC) on day 7. Tumor growth, phenotype, and ability to induce NK and T cell activity were measured.', 'Vaccination with naive admIL-12 DC resulted in 100% tumor regression and prolonged survival. Transduced DC induced only partial responses in 75% (day 7) and 25% (day 14) of animals. No differences in phenotype or effector cell activation were noted between admIL-12DC in tumor-bearing or naive mice.
Answer: IL-12 DC from tumor-bearing animals have a decreased ability to induce antitumor activity against established murine NB. This decreased capacity appears to be related to the duration of exposure to tumor because day 14 transduced DC had less of an effect than day 7 DC, despite similar phenotypes and ability to activate immune effector cells.
Does advanced neuroblastoma impair dendritic cell function in adoptive immunotherapy?

Context: To investigate the early stages in the formation of bony spurs in relation to normal enthesis development.', "Histologic sections of rat Achilles tendons, stained with toluidine blue or Masson's trichrome, were examined in animals ranging from 2 weeks to 1 year of age. Further material prepared for immunohistochemistry was labeled with monoclonal antibodies for laminin and type IV collagen to highlight the presence of small blood vessels at the enthesis. Sections of small spurs from the Achilles tendons of elderly humans were also examined for comparison.", 'As a part of normal development, bone grows into the Achilles tendon as the calcaneus enlarges. Ossification is preceded by vascular invasion, which occurs along rows of enthesis fibrocartilage cells. Small bony spurs develop when ossification at one point on the enthesis outstrips that on either side.
Answer: Bony spurs can develop in the Achilles tendon without the need for preceding microtears or any inflammatory reaction, and they form by endochondral ossification of enthesis fibrocartilage. The increased surface area created at the tendon-bone junction may be an adaptive mechanism to ensure the integrity of the interface in response to increased mechanical loads.
Does the mechanism of formation of bony spur ( enthesophytes ) in the achilles tendon?

Context: The aim of this study was to compare the incidence of suicidal ideation and behaviors observed with antidepressant drug treatment to the incidence with placebo, in randomized, controlled pediatric clinical trials.', 'Manufacturers of nine antidepressant drugs identified suicidal adverse events in randomized, placebo-controlled, pediatric clinical trials that they had sponsored. Events were found with an electronic search for adverse event descriptions, including key words suggesting suicidal ideation or self-injury, along with a manual review of all adverse events meeting the standard regulatory definition for seriousness. Incidence rate data for these events supplied by the manufacturers were combined across trials to yield Mantel-Haenszel combined risk estimates.', 'Data from 22 randomized, short-term, placebo-controlled, pediatric trials in various indications, involving nine different antidepressant drugs, were available for analysis. A total of 2298 pediatric subjects were exposed to active drug, and 1952 to placebo. Seventy eight (78) serious suicidal adverse events occurred in these trials (54 with active drug and 24 with placebo); there were no completed suicides. The combined incidence rate ratio across all trials for serious suicidal adverse events was 1.89 (95% Confidence Interval, 1.18-3.04).
Answer: In short-term, placebo-controlled, pediatric studies of antidepressants, active drug treatment was associated with a rate of serious suicidal events almost twice that of placebo.

Are suicidal adverse events in pediatric randomized , controlled clinical trials of antidepressant drugs associated with active drug treatment : a meta-analysis?