On February 22, 2017, I received an email from my friend and colleague Dr. Martin Fleisher, announcing the passing of legendary Clinical Chemist, Dr. Morton K. Schwartz. Dr. Schwartz dominated the field of clinical chemistry and cancer diagnostics for over 40 years. He has previously served as president of AACC, and he was the chair of Laboratory Medicine (Clinical Laboratories) at the prestigious Memorial Sloan Kettering Cancer Center in New York City. This document is not an obituary. It is a memoir of my personal interactions with Mort for the last 30 years.
In the summer of 1981, after finishing my PhD at the University of Athens, Greece, I was going for postdoctoral training at the University of Illinois at Urbana-Champaign to work under the direction of the famous analytical chemist Dr. Howard V. Malmstadt. However, I had already made up my mind to find a training program in clinical chemistry and become a clinical chemist, specializing on cancer biomarkers. At that time, there was tremendous interest on new cancer biomarkers because it was the time that PSA and the carbohydrate antigens CA 125, CA 15.3 and CA 19.9 were discovered and were being evaluated in the clinic. One of my senior colleagues at the University of Athens, who was doing a sabbatical at nearby Cornell University, told me that if I were to do cancer biomarker research, then he could introduce me to the guru of that time, who was no other than Mort. I asked my colleague if he knew Mort personally and he said yes. However, I found out later that he only knew his name and he probably saw him at the cafeteria of the Sloan Kettering once or twice during lunch times. Anyway, I gladly accepted his invitation to introduce me to Dr. Morton Schwartz, and I had arranged my trip to stop in New York City and visit Mort with my colleague, discuss and then continue on to Urbana-Champaign for my postdoctoral fellowship.
That was the very first time I was flying outside Greece, and my first impression of New York City was, understandably, shocking. When I finished my PhD at the University of Athens, I managed to publish two papers in Clinical Chemistry, and I thought that I became so famous that when I arrive in New York City, everybody would recognize me. I was, at that time, so pompous that I felt like the best thing discovered after sliced bread.
The day after my arrival in New York City, we walked to Memorial Sloan Kettering and found the office of Dr. Schwartz. A secretary was sitting outside his office, and she asked us what we wanted. I said, “I am Dr. Diamandis” (and I was surprised she did not know me) “and we came to see Dr. Mort Schwartz”. The secretary said, “Do you have an appointment?” I replied, “Excuse me, what is an appointment?” and she said, “Well, if you want to see Mort Schwartz you should have arranged it earlier with me and this is called an appointment”. I explained that in Greece we do not have such a thing and when we want to see somebody we just show up at the door. Anyway, the secretary told us that Dr. Schwartz was not in, but if we wanted to wait, we could sit in the corridor until he shows up. We decided to stay, and after 2 h of waiting, Dr. Schwartz arrived and the secretary announced our presence. Despite having other appointments, Dr. Schwartz gave us 15 min and spoke to us. I briefly explained my achievements at that time, including my papers in Clinical Chemistry (and I was surprised that he did not know either my name or my papers) and indicated that it would be fantastic if he would offer me a position to work with him as a trainee in clinical chemistry, specializing on tumor markers. Dr. Schwartz kindly declined my proposal, mentioning that he has no funding. I was deeply disappointed with his decision and shocked because, as mentioned, I thought that I was “hot property”.
I left New York, going to Urbana-Champaign, never thinking that I would see Dr. Schwartz in the future. After finishing my postdoctoral fellowship, I secured a position at the postdoctoral diploma training program in Toronto, under the direction of Dr. David Goldberg. I completed my postdoctoral fellowship (1984), returned back to Greece to finish Medical School and then came back to Toronto, and I was appointed assistant professor at the University (1986). I did not know at that time that Dr. David Goldberg was a very close friend with Mort, because they were both heavily involved with the International Society for Enzymology (ISE), and both served as presidents. Soon, I also became involved with ISE and served as president. I have seen Mort in many meetings since that time, including ISE, AACC, CLAS, ISOBM and other tumor marker-related meetings. He was a wonderful man, low key, with tremendous humility. His wife Delia was also wonderful. Mort, knowing my obsession with music, would always remind me that there is a song on Delia by Johnny Cash called “Delia’s Gone” (https://www.youtube.com/watch?v=SSypZulEPDE), in which Johnny Cash says “Delia’s gone one more round, Delia’s gone”.
In subsequent discussions, Mort was a bit apologetic for not accepting me, mentioning that he contacted David Goldberg and recommended me to him. However, this was not accurate because David Goldberg revealed years later that the major sponsor of my application to his program was Howard V. Malmstadt.
Mort Schwartz was fond of my contributions in the cancer biomarker field, and in 1999, with his nomination, I received the Van Slyke Award of the New York Section of AACC.
In 2007, I was very pleased to receive the AACC award that bares Mort’s name, “The Morton K. Schwartz Award for Significant Contributions in Cancer Research Diagnostics”. Subsequently, I also received another award that honors Mort, “The Morton K. Schwartz Lectureship Award” from the New York Metro Section of the American Association for Clinical Chemistry (2014). Unfortunately, at that time, Mort’s health was deteriorating slowly, and he was not able to attend the lecture. His son Gary Schwartz, a famous scientist on his own right, was there to represent him. We knew at that time that his health will only get worse.
When Mort retired from his position at Sloan Kettering in 2004, I was very pleased to see that he put my name forward to become his successor. After long negotiations, this was not realized. I always thought that Mort’s shoes were too big to be filled easily, and his position remained open for many years, with Martin Fleisher becoming acting chair.
In 2002, we undertook to edit a book on tumor markers (published by AACC Press) with Mort as coeditor, along with other luminaries, such as Hans Lilja, Daniel Chan and Herbert Fritsche. We had a lot fun putting this book together, and Mort kindly offered his wisdom and knowledge.
Mort was a true gentleman and a giant in the field of clinical chemistry and cancer biomarkers. I will always remember him as a great colleague and a friend, walking with Delia at his side, such as in Napoli, during the ISE meeting. If Johnny Cash were alive today, and if he were to paraphrase on his famous song, he would probably sing “Mort’s gone, one more round, Mort’s gone”.

1926–2017 Morton K. Schwartz, PhD, FACB.

Photo Description: The 2003 AACC Awards Dinner in Philadelphia. From left to right: Anastasia Diamandis, Delia Schwartz, Morton K. Schwartz, Eleftherios P. Diamandis.
Obituary
We are sad to announce the death of Morton K. Schwartz, whose 46-year tenure at Memorial Sloan Kettering was notable for both its length and its impact on the organization as a whole. Dr. Schwartz passed on February 22, 2017, after a long illness.
Dr. Schwartz was chairman of the Department of Clinical Laboratories, attending clinical chemist and member of the Memorial Sloan Kettering Cancer Center and member of the Sloan-Kettering Institute for Cancer Research in New York City. He was vice president for Laboratory Affairs and deputy general director of Memorial Hospital. He was also professor of Developmental Therapy and Clinical Investigation in the Sloan-Kettering Division of the Cornell University Graduate School of Medical Sciences.
He received his BA degree in chemistry from Lehigh University (1948) and his MS (1949) and PhD (1952) from Boston University. For over 50 years, Dr. Schwartz has worked professionally to enhance the three R’s of success for clinical chemists: respect, responsibility and reward.
Dr. Schwartz held many leadership and advisory roles outside of MSK. He was president of AACC, president of the National Registry in Clinical Chemistry, chairman of the Food and Drug Administration Clinical Chemistry and Hematology Panel, a member of the National Cancer Institute Immunodiagnostics Study Section and a member of numerous NIH ad hoc study sections. He was secretary of the National Committee on Health Laboratory Services and secretary of the Committee of Scientific Society Presidents. He was a member of the Executive Committee of the Academy of Clinical Laboratory Physicians and Scientists, a member of the Board of the Registry of the ASCP, a member of the Evaluation Panel for the Analytical Chemistry Division of the National Bureau of Standards, chairman of the 1973 and 1983 AACC annual meetings and chair of the AACC New York Metropolitan Section on two occasions. He was chairman of the AACC Education Committee (1968–1973) and a leader in the improvement of clinical chemistry through education. He was a member of the Professional Affairs Committee (Commission), chairman of the IFCC Committee on Education and IUPAC Commission on Education of the Clinical Chemistry Division as well as Secretary of the IUPAC Division of Clinical Chemistry.
Dr. Schwartz was a member of the Scientific Council of the Association of Clinical Scientists, the Immunodiagnostics Committee of the International Union Against Cancer (IUCC) and the National Breast and Colon Cancer Task Force. He was a member of the Advisory Committee of the Professional Education Testing Service in the Development and Administration of Clinical Laboratory Proficiency Examinations under contract to the U.S. Department of Health and Human Services and a member of the Ligand Assay Committee and Chairman of the CEA Committee on the NCCLS. He served on the New York City’s Advisory Laboratory Committee.
Dr. Schwartz received numerous awards, including the AACC Past President’s Award, the AACC Van Slyke Award, the prestigious AACC Award for Outstanding Contributions through Service to the Profession of Clinical Chemistry, the AACC Award for Efforts in Education and Training, the Certificate of Merit of the New Jersey Section of AACC, the Wiley Medal and the Commissioner’s Citation of the Food and Drug Administration. He has authored or coauthored more than 385 publications, was coeditor of Advances in Clinical Chemistry y and was editor of a series of books on clinical and biochemical analysis. Dr. Schwartz was on the editorial boards of Analytical Letters, Annals of Clinical Science, Clinical Chemistry, Clinica Chimica Acta, Journal of Immunoassay, Cancer Investigation, Tumor Biology and International Journal of Biological Markers. In 2003, the AACC established the prestigious Morton K. Schwartz Award for Significant Contributions in Cancer Research Diagnostics.
Dr. Schwartz was a pioneer of automated clinical chemistry and one of the original investigators in tumor marker research. He was the first to describe automated methods for measuring enzymes in blood and directed the evaluation of many automated instruments used in clinical chemistry laboratories. During his career, he had many research interests, including studies of tumor markers and their use in predicting prognosis and in monitoring patients with cancer, evaluation of metabolic abnormalities after cancer surgery, which led to the development of a gluten-free diet in treatment of nontropical sprue and nutritional, and pharmacologic treatment of gastrectomy and intestinal resection malabsorption. His interest in clinical enzymology included studies of 5′-nucleotidase, phosphohexose isomerase and isoenzymes of lactate dehydrogenase, aspartate aminotransferase and other enzymes in serum, body fluids and tissues of cancer patients.
I first met Dr. Schwartz in 1966 at an American Chemistry Society meeting in Atlantic City. I was presenting a seminar on my thesis topic: effects of γ radiation on ribonuclease A.
This was a “test run” prior to my thesis defense, and Dr. Schwartz approached me after my presentation with questions and some reservations regarding my conclusions. We agreed to meet in his office at MSKCC to discuss his concerns. After a 2-h meeting discussing my research, he inquired about my future plans. I told him I was not sure but that I wanted an academic position.
Dr. Schwartz was Chief of Clinical Chemistry, and he suggested that a position at MSK would satisfy my desire to work in academia, teach and do research. I accepted the offer and reported for work on February 6, 1967. Dr. Schwartz had an international reputation for indentifying serum-based enzymes that can be used to detect and monitor cancer. He was completing his work on the development of a prostatic acid phosphatase assay and suggested I get involved in a project to isolate and develop an assay for 5′-nucleotidase. It was this experience that demonstrated the position impact of how a great mentor can effect the career of a “rookie”. Dr. Schwartz had the ability to set attainable goals, to overcome challenges and to develop and teach techniques to manage experimental design. He inspired and created optimism without micromanaging, and he knew how to ask insightful questions while being a patient listener. These are skills a young investigator needs to learn and apply to all aspects of their work. My investigation into how 5′-nucleotidase can be used as a specific indicator of metastatic cancer to the liver serves as an example of Dr. Schwartz’s ability to teach and direct research in an effective fashion. Within a few months, Dr. Schwartz instilled sufficient confidence in me to present our findings to the New York Academy of Science. Dr. Schwartz was a highly respected biochemist in the academy, and it was an honor to present before this body of scientists. That was the beginning of a long and satisfying relationship that was maintained for 40 years. Mentoring came naturally to Dr. Schwartz. Before there were well-organized training fellowship programs in clinical pathology that included training in clinical chemistry, Dr. Schwartz organized and set up a program at MSKCC to train pathology fellows from New York Hospital interested in clinical pathology. Over a period of 5 years he supervised the training of four pathologists in clinical chemistry.
Clinical chemistry will miss his exceptional leadership and innovative thinking.
Dr. Schwartz was born in Wilkes-Barre, Pennsylvania. He was married to Delia Corr and has two sons, Gary and Ronald, daughters-in-law Connie and Amy and two grandchildren, Brian and Katherine.
Martin Fleisher
Memorial Sloan Kettering Cancer Center
New York (USA)
I would like to remember the figure of Dr. Morton K. Schwartz, a legendary clinical chemist, as one of the presidents of the International Society for Enzymology, formerly known as the International Society for Clinical Enzymology (ISCE), founded in Venice (Italy) on the 7th of April 1976 by my mentor, Angelo Burlina, and by other eminent laboratory professionals, including Morton.
Morton K. Schwartz was not only an eminent laboratory professional who provided seminal contributions to the development of cancer biomarkers but also a great man. After the death of Angelo Burlina, he accepted my invitation to deliver a lecture at the meeting I organized in Padova dedicated to the memory of my mentor.
I strongly believe that we have to save the memories of the “fathers” of our profession such as Morton, Gérad Siest, Angelo Burlina and Donald Moss who worked together to provide a future to clinical enzymology, cancer biomarkers and laboratory medicine.
Mario Plebani
Editor in Chief,
CCLM
©2017 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Editorials
- Opportunities and drawbacks of nonstandard body fluid analysis
- How I first met Dr. Morton K. Schwartz
- Reviews
- Measurement of thyroglobulin, calcitonin, and PTH in FNA washout fluids
- Quality control materials for pharmacogenomic testing in the clinic
- Modulating thrombotic diathesis in hereditary thrombophilia and antiphospholipid antibody syndrome: a role for circulating microparticles?
- Opinion Papers
- Advances in laboratory diagnosis of hereditary spherocytosis
- Analytical performance specifications for external quality assessment – definitions and descriptions
- Genetics and Molecular Diagnostics
- Differences between quantification of genotype 3 hepatitis C virus RNA by Versions 1.0 and 2.0 of the COBAS AmpliPrep/COBAS TaqMan HCV Test
- General Clinical Chemistry and Laboratory Medicine
- Estimating the intra- and inter-individual imprecision of manual pipetting
- Effect of multiple freeze-thaw cycles on selected biochemical serum components
- The effect of storage temperature fluctuations on the stability of biochemical analytes in blood serum
- Comparison of ex vivo stability of copeptin and vasopressin
- Physiologic changes of urinary proteome by caffeine and excessive water intake
- Assessment of autoantibodies to interferon-ω in patients with autoimmune polyendocrine syndrome type 1: using a new immunoprecipitation assay
- Reference Values and Biological Variations
- Within-day biological variation and hour-to-hour reference change values for hematological parameters
- Relationship between anti-Müllerian hormone and antral follicle count across the menstrual cycle using the Beckman Coulter Access assay in comparison with Gen II manual assay
- Cardiovascular Diseases
- Low-grade inflammation and tryptophan-kynurenine pathway activation are associated with adverse cardiac remodeling in primary hyperparathyroidism: the EPATH trial
- Infectious Diseases
- Comparison between procalcitonin and C-reactive protein in predicting bacteremias and confounding factors: a case-control study
- Monitoring of procalcitonin but not interleukin-6 is useful for the early prediction of anastomotic leakage after colorectal surgery
- Activation of the tryptophan/serotonin pathway is associated with severity and predicts outcomes in pneumonia: results of a long-term cohort study
- Letters to the Editor
- Incidental findings of monoclonal proteins from carbohydrate-deficient transferrin analysis using capillary electrophoresis
- IgD-λ myeloma with extensive free light-chain excretion: a diagnostic pitfall in the identification of monoclonal gammopathies
- 25-Hydroxyvitamin D threshold values should be age-specific
- Effect of dabigatran treatment at therapeutic levels on point-of-care international normalized ratio (INR)
- Alkaline phosphatase activity – pH impact on the measurement result
- Cyst hydatid and cancer: the myth continues
- Role of activated platelets in severe acne scarring and adaptive immunity activation
- Towards a random-access LC-MS/MS model for busulfan analysis
Articles in the same Issue
- Frontmatter
- Editorials
- Opportunities and drawbacks of nonstandard body fluid analysis
- How I first met Dr. Morton K. Schwartz
- Reviews
- Measurement of thyroglobulin, calcitonin, and PTH in FNA washout fluids
- Quality control materials for pharmacogenomic testing in the clinic
- Modulating thrombotic diathesis in hereditary thrombophilia and antiphospholipid antibody syndrome: a role for circulating microparticles?
- Opinion Papers
- Advances in laboratory diagnosis of hereditary spherocytosis
- Analytical performance specifications for external quality assessment – definitions and descriptions
- Genetics and Molecular Diagnostics
- Differences between quantification of genotype 3 hepatitis C virus RNA by Versions 1.0 and 2.0 of the COBAS AmpliPrep/COBAS TaqMan HCV Test
- General Clinical Chemistry and Laboratory Medicine
- Estimating the intra- and inter-individual imprecision of manual pipetting
- Effect of multiple freeze-thaw cycles on selected biochemical serum components
- The effect of storage temperature fluctuations on the stability of biochemical analytes in blood serum
- Comparison of ex vivo stability of copeptin and vasopressin
- Physiologic changes of urinary proteome by caffeine and excessive water intake
- Assessment of autoantibodies to interferon-ω in patients with autoimmune polyendocrine syndrome type 1: using a new immunoprecipitation assay
- Reference Values and Biological Variations
- Within-day biological variation and hour-to-hour reference change values for hematological parameters
- Relationship between anti-Müllerian hormone and antral follicle count across the menstrual cycle using the Beckman Coulter Access assay in comparison with Gen II manual assay
- Cardiovascular Diseases
- Low-grade inflammation and tryptophan-kynurenine pathway activation are associated with adverse cardiac remodeling in primary hyperparathyroidism: the EPATH trial
- Infectious Diseases
- Comparison between procalcitonin and C-reactive protein in predicting bacteremias and confounding factors: a case-control study
- Monitoring of procalcitonin but not interleukin-6 is useful for the early prediction of anastomotic leakage after colorectal surgery
- Activation of the tryptophan/serotonin pathway is associated with severity and predicts outcomes in pneumonia: results of a long-term cohort study
- Letters to the Editor
- Incidental findings of monoclonal proteins from carbohydrate-deficient transferrin analysis using capillary electrophoresis
- IgD-λ myeloma with extensive free light-chain excretion: a diagnostic pitfall in the identification of monoclonal gammopathies
- 25-Hydroxyvitamin D threshold values should be age-specific
- Effect of dabigatran treatment at therapeutic levels on point-of-care international normalized ratio (INR)
- Alkaline phosphatase activity – pH impact on the measurement result
- Cyst hydatid and cancer: the myth continues
- Role of activated platelets in severe acne scarring and adaptive immunity activation
- Towards a random-access LC-MS/MS model for busulfan analysis