Re: bivalve hematopoiesis?

From: Thomas M Delohery (t-delohery@ski.mskcc.org)
Date: Tue Feb 06 2001 - 12:49:13 EST


Many moons ago, we investigated "sea squirt" blood cells with flow cytometry.
While not quite bivalves, they're closely related.  We were able to resolve
multiple cell types on the basis of autofluorescence  and light
scatter.  It was
a  very interesting project.

I would caution you on comparing light scatter patterns from chordate blood to
mammalian cells.  The functional roles of the chordate cells are
undoubtedly quite
different  from mammalian.  One of the goals in the citation below
was to determine
the cell population(s) responsible for sequestering large amounts of vanadium.

good luck, td


Oltz EM; Pollack S; Delohery T; Smith MJ; Ojika M; Lee S; Kustin K; Nakanishi K
Distribution of tunichrome and vanadium in sea squirt blood cells
sorted by flow cytometry.
Department of Chemistry, Columbia University, New York, New York 10027.
Experientia 1989 Feb 15;45(2):186-90



>Hi,
>
>How blood cells are formed in bivalves is unknown.  In fact, most
>things about bivalve blood cells remain unknown. Using flow
>cytometry, we have sorted a few subpopulations (that we can see with
>light scatter) and described them.  What we would like to know is; if
>we see 3 subpopulations, 1 resembling granulocytes another resembling
>lymphocytes, with a 3rd that has an intermediate appearance
>(non-granulated granulocytes and/or non-granulocytes with vacuoles)
>and placement on a histogram, is there any reason to believe that
>this intermediate population could be a precursor population to
>granulocytes?  Please excuse my ignorance of proper terminology.
>Thank you.
>
>Kathy
>--
>Kathryn A. Ashton-Alcox
>Haskin Shellfish Research lab
>Rutgers University
>6959 Miller Avenue
>Port Norris, NJ 08349
>USA
>
>856-785-0074 x122
>856-785-1544 fax
>
>kathryn@hsrl.rutgers.edu

--
--
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  Thomas M. Delohery                       |Internet: t-delohery@ski.mskcc.org
  Supervisor, Flow Cytometry Core Facility |   Office Phone: (212) 639-8729
  Memorial Sloan-Kettering Cancer Center   |     Lab Phone: (212) 639-5162
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  New York, NY    10021                    |
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