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 (mī′krō-ĕn-vī′rən-mənt, -vī′ərn-)
1. A small, often distinctive environment: microenvironments of the forest floor.
2. The area directly surrounding an organism or part of an organism, especially when it differs from the larger environment: the tumor microenvironment.
3. The immediate conditions or circumstances: a company's microenvironment.


(Environmental Science) ecology the environment of a small area, such as that around a leaf or plant


(ˌmaɪ kroʊ ɛnˈvaɪ ərn mənt, -ˈvaɪ rən-)

the environment of a small area or of an organism; microhabitat.
mi`cro•en•vi`ron•men′tal (-ˈmɛn tl) adj.
References in periodicals archive ?
If successful, BioAtla's technology would allow the selective targeting of CTLA4 expressed on immune cells localized in the tumor microenvironment.
To realize its full potential requires exploration of the complex system of biological pathways in the tumor microenvironment with agents that can stimulate the immune system to attack a wider variety of tumors.
The compound works by changing a tumor's microenvironment.
But that sets up a regenerative microenvironment involving an interaction of vascular endothelial cells and macrophages which, in turn, leads to beta cell proliferation both in mice and human islets.
The microenvironment consists of the thermal boundary layer around persons, exhalation, flow from talking and coughing, and those flows are not fully controlled by the ventilation system, see Bjom and Nielsen (2002), Nielsen et al.
The topics include cell-extrinsic effects of the tumor unfolded protein response on myeloid cells and T cells, human dendritic cell subsets as targets and vectors for therapy, tetraploidy as a case of immunological control of cell cycle aberrations for avoiding oncogenesis, ongoing adaptive immune responses in the microenvironment of melanoma metastases, and cancer-induced immuno-suppressive cascades and their reversal by molecular-targeted therapy.
Bissell and others are convinced that by properly managing a tumor cell's microenvironment, they can make cancer something people live with, not die from.
It also inhibits various oncogenic and tumor microenvironment kinases including VEGFR 1-3, KIT, RET, PDGFR, and FGFR, which individually and collectively impact upon tumor growth, formation of a stromal microenvironment and disease progression.
Surprisingly, a new study by scientists at the University of Massachusetts Medical School published in Current Biology, suggests that exposure to coldness found in the microenvironment of the monarch's overwintering site triggers their return north every spring.
Calvi discovered that early treatment with PGE2 not only accelerated blood cell recovery, but protected the surrounding microenvironment to stimulate production of the newly transplanted cells.
Recognition of the importance of the tumor microenvironment in cancer evolution led to a shift from a tumor-centered view of cancer development to the concept of a complex tumor ecosystem in which cellular and molecular components are as influential as cancer cells themselves for cancer evolution and metastatic dissemination.